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Nguyen Phi, Hung, Toan Tran Quoc, Tuan Nguyen Anh, et al. "Human breast cancer cell inhibitory constituents from Tetradium ruticarpum." Journal of Science Natural Science 66, no. 1 (2021): 65–71. http://dx.doi.org/10.18173/2354-1059.2021-0008.
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Three alkaloids (named rutaecarpine (1), evodiamine (2), schinifoline (3) and one phenylpropanoid, integrifoliodiol (4)) have been isolated from the EtOAc extract of the fruits of Tetradium ruticarpum (A. Juss.) T. G. Hartley collected in Lang Son province. Their structures have been identified by using 1D and 2D NMR spectroscopies. All four compounds were tested for their cytotoxicity against the human breast cancer cell line (MCF-7) and tamoxifen-resistant breast cancer cell line (MCF\TAMR). The results showed that rutaecarpine (1) inhibited the growth of MCF7 and MCF\TAMR with its IC50 values of 41.2 and 64.6 µM, respectively. In addition, compounds 1, 2, and 4 showed moderate activity toward MCF-7 cell line.
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Men, Xin, Mengyang Su, Jun Ma, et al. "Overexpression of TMEM47 Induces Tamoxifen Resistance in Human Breast Cancer Cells." Technology in Cancer Research & Treatment 20 (January 1, 2021): 153303382110049. http://dx.doi.org/10.1177/15330338211004916.
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Background: Tamoxifen (TAM) is the eminent first-line drug for endocrine therapy of hormone receptor positive premenopausal breast cancer and reduces the risk of recurrence by ∼50%. However, many patients developed TAM resistance and their diseases recurred. Our previous study on transcriptome profile of TAM resistant breast cancer cells revealed that the TMEM47 is one of the most significantly differentially expressed genes. The mechanism of how TMEM47 is involved in TAM resistance was not known. Methods: We constructed a mammal breast cancer cell line, in which TMEM47 was stably overexpressed (TMEM47-OE/MCF-7), to further verify the role of TMEM47 in TAM resistance. siRNA targeting TMEM47 was transfected into TAMR / MCF-7 cells by Liposome. TMEM47 expression was validated on mRNA and protein level by qRT-PCR and western blotting. We tested the cytotoxicity of TAM in the cells. Apoptosis was detected by flow cytometry. Results: Compared to the MCF7 cells, TMEM47 mRNA was significantly up regulated more than 6 folds in the TAMR/MCF7 cells and so its protein. TMEM47 expression level in TMEM47-OE/MCF-7 was similar as in the TAMR/MCF-7 cells. The 50% inhibitory concentration (IC50) value (mean ± SD) of TAM in MCF-7, TAMR/MCF-7 and TMEM47-OE/MCF-7 cells was 1.58 ± 0.19, 2.74 ± 0.24 and 3.12 ± 0.32 µγ/mL, respectively. The apoptosis rates of TAMR/MCF-7 and TMEM47-OE/MCF-7 cell lines were significantly lower than that of MCF-7 cells. After 24 and 48 hours TAM treatments, cell viability was significantly inhibitied in TMEM47 knockdown TAMR/MCF7 cells (P < 0.01). Consistant with the decreased cell viability, the apoptosis rate in TMEM47 knockdown TAMR/MCF-7 cells was significantly increased. Conclusions: Our results suggest that overexpression of TMEM47 in MCF-7 cells acquired TAM resistance to those cells, and knockdown of TMEM47 in TAMR/MCF-7 cells reversed their resistance to TAM. TMEM47 might confer TAM resistance on MCF-7 cells through the inhibition of apoptosis.
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Lee, Jieun, Seung Yeon Joe, Ji-Sun Lee, Dong-Min Kim, and Ahwon Lee. "Abstract P3-10-02: Enhanced miR-579-3p by anti-estrogen treatment may affect capecitabine response in hormone receptor positive metastatic breast cancer." Cancer Research 82, no. 4_Supplement (2022): P3–10–02—P3–10–02. http://dx.doi.org/10.1158/1538-7445.sabcs21-p3-10-02.
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Abstract Purpose Capecitabine is one of a treatment option in anthracycline and taxane pre-treated metastatic breast cancer (MBC) patients. We have performed miRNA microarray of durable and poor responders to capcitabine, and compared with cell line miRNA expression profile (MCF-7, tamoxifen-resistant MCF-7 [MCF-TAM] cell line treated with 5-FU. Methods Between Jan 2006 to Jan 2021, 66 patients treated with capecitabine after anthracycline and taxane failure were enrolled. Twenty-three archival tumor tissues (11 durables and 12 poor responders, each) were collected and went through nCounter miRNA expression assay. MCF-7, tamoxifen resistant MCF-7 (MCF-TAM) cell line was treated with tamoxifen or 5-FU for proliferation assay and also went through nCounter miRNA expression assay. Results HR positive patients who received anti-estrogen treatment before capecitabine showed longer PFS (median 7.7 vs. 4.03 months, P=0.006). MCF-7 treated with tamoxifen and 5-FU showed decreased proliferation compared to 5-FU treated MCF-7. There was significant difference of miR-579-3p expression between durable and poor responders (log2FC -3.02, P=0.004). Tamoxifen-treated MCF-7 cell line showed upregulation of miR-579-3p compared to MCF-7. Tamoxifen + 5-FU treated MCF-7 cell line showed decreased expression of miR-579-3p compared to 5-FU treated MCF-7 cell line. MCF-7 cell line was treated with 5-FU and miR-579-3p. Compared to 5-FU only treated cell line, 5-FU + miR-579-3p treated cell line showed trends for decreased cell proliferation, suggesting that miR-579-3p may have chemo-sensitizing role during systemic chemotherapy. Based on miRNA database, authors hypothesized that MDM2 may be target protein of miR-579-3p and planning to perform further analysis. Conclusions Anti-estrogen treatment before capecitabine administration was associated to better survival in HR positive MBC. Anti-estrogen potentiated the effect of 5-FU in MCF-7. MiR-579-3p was upregulated in durable responders and tamoxifen treated MCF-7 cell line. Further study is planned to analyze the role of miR-579-3p and its potential target, MDM2 in breast cancer. Citation Format: Jieun Lee, Seung Yeon Joe, Ji-Sun Lee, Dong-Min Kim, Ahwon Lee. Enhanced miR-579-3p by anti-estrogen treatment may affect capecitabine response in hormone receptor positive metastatic breast cancer [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr P3-10-02.
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Alkreathy, Huda Mohammed, Noura Farraj AlShehri, Fatemah Omer Kamel, Ahmed Khalaf Alghamdi, Ahmed Esmat, and Shahid Karim. "Aged garlic extract potentiates doxorubicin cytotoxicity in human breast cancer cells." Tropical Journal of Pharmaceutical Research 19, no. 8 (2020): 1669–76. http://dx.doi.org/10.4314/tjpr.v19i8.15.
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Purpose: To investigate the potential chemo-sensitizing effect of aged garlic extract (AGE) on doxorubicin (DOX) in breast cancer cells (MCF-7), and the possible underlying mechanisms.Methods: Human breast cancer cell line (MCF-7) was treated with AGE and DOX. The cytotoxic effects of AGE and DOX were investigated via cell cycle analysis and apoptosis induction, using flow cytometry. Mechanistic studies involved the determination of cellular uptake of DOX and p-glycoprotein (P-gp) activity.Results: Combined treatment of MCF7 cells with AGE and DOX produced no significant effect at AGE dose of 10 mg/mL. However, co-treatment with AGE at doses of 50 and 93 mg/mL enhanced the cytotoxicity of DOX on MCF-7 cells, with IC50 values of 0.962 and 0.999 μM, respectively, whencompared with 1.85 μM DOX alone. Moreover, Annexin V-FITC and PI techniques showed that AGE significantly increased percentage of cells in late apoptosis. Besides, AGE-DOX treatment significantly increased cellular uptake of DOX and inhibited P-gp activity, when compared with DOX alone (p < 0.05).Conclusion: AGE enhances the cytotoxic effect of DOX on MCF-7 cells, most likely due to cell cycle distribution, stimulation of apoptosis, increased uptake of DOX by MCF7, and inhibition of P-gp activity.
 Keywords: Aged garlic extract, Doxorubicin, Breast cancer, MCF-7 cell line, P-glycoprotein, Apoptosis, Cell cycle
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Guo, Zhijun, Jianxun Lei, Allison Makovec, et al. "Abstract LB334: Mechanisms of endocrine resistance to letrozole, fulvestrant, and palbociclib are associated with increased sensitivity to hexyl-cuban-1-yl biguanide inhibitors of CYP3A4 mediated epoxyeicosatrienoic acid biosynthesis." Cancer Research 84, no. 7_Supplement (2024): LB334. http://dx.doi.org/10.1158/1538-7445.am2024-lb334.
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Abstract Introduction: Eicosanoid mediated mechanisms of hormone therapy resistance in ER+HER2- breast cancer are poorly understood. Cytochrome P450 arachidonic acid (AA) epoxygenase-derived epoxyeicosatrienoic acids (EETs) contribute to breast cancer progression by promoting mitochondrial oxidative phosphorylation (OXPHOS). However, it remains unclear how EETs contribute to hormonal therapy resistance. In this study, the well-known letrozole resistant (LR) MCF-7 AC1 cell line overexpressing aromatase was selected for fulvestrant resistance (FR). A clonal cell line resistant to letrozole and fulvestrant (LR/FR) also exhibited resistance to palbociclib (PR) (MCF-7 AC1 LR/FR/PR). Xenograft tumors of this cell line were resistant to letrozole, fulvestrant, and palbociclib. Structure activity studies and modeling led to the development of CYP3A4 AA epoxygenase inhibiting biguanides hexyl cuban-1-yl biguanide (HCB) and fluorinated hexyl derivatives C5F2-HCB and C6F3-HCB. Fluorination on the hexyl moiety led to broader inhibition of EET regioisomer biosynthesis. These agents were tested for inhibition of proliferation, signaling, and OXPHOS/glycolysis balance in the MCF-7 AC1 LR/FR/PR cell line. Results: In the MCF-7 AC1 LR/FR/PR clonal cell line cyclin D1 and estrogen receptor (ER) expression were undetectable, while cyclin E1, CDK4, CDK6, CYP3A4, and c-MYC were upregulated 11, 40, 13, 10, and 12- fold (n=3, p&lt;0.001) compared to the MCF-7 cell line. LC-MS analysis demonstrated 1.8, 1.4, and 1.2- fold higher total cellular levels of (±)8,9, (±)11,12, and (±)14,15-EET in the MCF-7 AC1 LR/FR/PR cell line compared to the MCF-7 cell line (n=3, p&lt;0.05). C6F3-HCB suppressed cellular levels of EETs: (±)8,9-EET by 55% (n=3, p&lt;0.031), (±)11,12-EET by 53% (n=3, p&lt;0.029), and (±)14,15-EET by 60% (n=3, P&lt;0.0001). The MCF-7 AC1 LR/FR/PR cell line was more potently inhibited by hexyl-cuban-1-yl biguanides compared to the MCF-7 cell line, exhibiting lower IC50 values (MCF-7 AC1 LR/FR/PR IC50 vs. MCF-7 IC50; HCB 4.1 vs. 7.0 uM; for C5F2-HCB 10 vs. 25 uM; C6F3-HCB: 5.4 vs. 12 uM; P values all &lt;0.05). Measurement of spare respiratory capacity revealed that the MCF-7 AC1 LR/FR/PR cell line had 4.2% spare respiratory capacity compared to 34% for MCF-7, indicating a lower OXPHOS reserve for the resistant cells. Additionally, the MCF-7 AC1 LR/FR/PR cell line displayed a 2.4-fold higher extracellular acidification rate (ECAR) than the MCF-7 cell line, indicating a higher glycolysis rate (Warburg effect) in the resistant cells. Conclusion: Selection for fulvestrant resistance of MCF-7 AC1 cells resulted in upregulation of CYP3A4 and biosynthesis of hormone therapy resistance associated EETs while correlating with greater sensitivity to fluorinated hexyl-cuban-1-yl biguanides that inhibit EET biosynthesis. Citation Format: Zhijun Guo, Jianxun Lei, Allison Makovec, Swaathi Jayaraman, John R. Hawse, Carol Lange, Elizabeth Ambrose, Gunda I. Georg, Tony D'Assoro, Goetz P. Matthew, David A. Potter. Mechanisms of endocrine resistance to letrozole, fulvestrant, and palbociclib are associated with increased sensitivity to hexyl-cuban-1-yl biguanide inhibitors of CYP3A4 mediated epoxyeicosatrienoic acid biosynthesis [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(7_Suppl):Abstract nr LB334.
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Yazdi-Rouholamini, Sayedeh Elmira, Nasrin Motamed, Mohammad Tahmasb, and Kobra Omidfar. "Silibinin Cytotoxic Effect on MCF-7 Cell Line." Journal of Sabzevar University of Medical Sciences 23, no. 3 (2016): 386–91. http://dx.doi.org/10.21859/sums-2303386.
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Kaan, Dilek. "Expression and biochemical significance of Piwil2 in stem cell lines." Postępy Higieny i Medycyny Doświadczalnej 76, no. 1 (2022): 97–103. http://dx.doi.org/10.2478/ahem-2022-0009.
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Abstract Introduction P-element induced wimpy testis-like 2 (Piwil2) is in the Piwi gene family. Piwil2 has important roles in the self-renewal mechanism of stem cell induction and progression of numerous types of human malignancies such as lung, breast, colon, prostate, and cervical cancers. Glutathione S-transferase (GST) acts as detoxification in cancer metabolism. This study aimed to investigate the effects of the stem cell protein Piwil2 on MCF10A and MCF-7 at the GST activity levels. Materials/Methods MCF-7/Piwil2 and MCF10A/Piwil2, transfected with a plasmid carrying the Piwil2 gene, and non-transfected MCF-7 and MCF10A were cultured in a complete DMEM/F12 medium. GST A1 and P1 activity was determined in these cell lines using as substrates CDNB, EA respectively. Results According to experimental results, GST P1 activity decreased in the MCF-7/Piwil2 cells as compared with the non-transfected MCF-7 cells, however, MCF-7/Piwil2 cells demonstrated increases in GST A1 (total GST) activity. The statistically significant differences were found for the comparison of non-transfected MCF-7 and MCF-7/Piwil2 (p<0,0001), for GST enzyme activities by using CDNB and EA as substrates. These results were the same for the MCF10A cell line. Discussion It is shown for the first time that transfection studies may affect GST activity at the cellular mechanism level. The study contributes to determining the effect of transfection on GST isoenzymes and also how the Piwil2 gene may affect GST activity in the stem cell line.
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Arulnathan, Stephanie B., Kok H. Leong, Azhar Ariffin, Huda S. Kareem, and Kevin K. H. Cheah. "Activation of Intrinsic Apoptosis and G1 Cell Cycle Arrest by a Triazole Precursor, N-(4-chlorophenyl)-2-(4-(3,4,5-trimethoxybenzyloxy)benzoyl)-hydrazinecarbothioamide in Breast Cancer Cell Line." Anti-Cancer Agents in Medicinal Chemistry 20, no. 9 (2020): 1072–86. http://dx.doi.org/10.2174/1871520620666200318100051.
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Background: Oxadiazoles, triazoles, and their respective precursors have been shown to exhibit various pharmacological properties, namely antitumour activities. Cytotoxic activity was reported for these compounds in various cancer cell lines. Aim and Objectives: In this study, we aim at investigating the mechanism of apoptosis by N-(4-chlorophenyl)-2-(4- (3,4,5-trimethoxybenzyloxy)benzoyl)-hydrazinecarbothioamide, a triazole precursor, henceforth termed compound P7a, in breast cancer cell line, MCF-7. We first screen a series of analogues containing (3,4,5-trimethoxybenzyloxy) phenyl moiety in breast cancer cell lines (MCF-7 and MDA-MB-231) to select the most cytotoxic compound and demonstrate a dose- and time-dependent cytotoxicity. Then, we unravel the mechanism of apoptosis of P7a in MCF-7 as well as its ability to cause cell cycle arrest. Methods: Synthesis was performed as previously described by Kareem and co-workers. Cytotoxicity of analogues containing (3,4,5-trimethoxybenzyloxy)phenyl moiety against MCF-7 and MDA-MB-231 cell lines was evaluated using the MTS assay. Flow cytometric analyses was done using Annexin V/PI staining, JC-1 staining and ROS assay. The activity of caspases using a chemoluminescence assay and western blot analysis was conducted to study the apoptotic pathway induced by the compound in MCF-7 cells. Lastly, cell cycle analysis was conducted using flow cytometry. Results: Upon 48 hours of treatment, compound P7a inhibited the proliferation of human breast cancer cells with IC50 values of 178.92 ± 12.51μM and 33.75 ± 1.20μM for MDA-MB-231 and MCF-7, respectively. Additionally, compound P7a showed selectivity towards the cancer cell line, MCF-7 compared to the normal breast cell line, hTERT-HME1, an advantage against current anticancer drugs (tamoxifen and vinblastine). Flow cytometric analyses using different assays indicated that compound P7a significantly increased the proportion of apoptotic cells, increased mitochondria membrane permeabilisation and caused generation of ROS in MCF-7. In addition, cell cycle analysis showed that cell proliferation was arrested at the G1 phase in the MCF-7 cell line. Furthermore, upon treatment, the MCF-7 cell line showed increased activity of caspase-3/7, and caspase-9. Lastly, the western blot analysis showed the up-regulation of pro-apoptotic proteins along with up-regulation of caspase-7 and caspase-9, indicating that an intrinsic pathway of apoptosis was induced. Conclusion: The results suggest that compound P7a could be a potential chemotherapeutic agent for breast cancer.
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Zhang, Ying, Haiyan Gao, and Haidong Gao. "BAG5 regulates PTEN stability in MCF-7 cell line." BMB Reports 46, no. 10 (2013): 490–94. http://dx.doi.org/10.5483/bmbrep.2013.46.10.268.
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Komorowska, Dominika, Agnieszka Gajewska, and Aleksandra Rodacka. "Radiosensitivity of human breast cancer cell line MCF-7." Acta Universitatis Lodziensis. Folia Biologica et Oecologica 17 (September 29, 2021): 12. http://dx.doi.org/10.18778/1730-2366.16.08.
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Proks, Maria, Alina Heghes, Adelina Cheveresan, et al. "Thyme Leaves Aqueous Extract and its Formulations. A comparative study based on chemical structures and biological activity." Revista de Chimie 70, no. 5 (2019): 1875–78. http://dx.doi.org/10.37358/rc.19.5.7236.
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The present study was conducted in order to evaluate the biological activity of thyme aqueous extract as compared to the silver nanoparticles obtained on it on four different cancer lines: non-melanoma skin cancer (A431 cell line), melanoma skin cancer (A375cell line), hormone dependent breast cancer (MCF-7 cell line), and non-hormone dependent breast cancer (MDA-MB-231 cell line). Of particular importance in the study of biological activity is the chemical composition. Formulas rich in compounds of classes like those of flavonoids are recognized for their efficacy and important antioxidant effect. The extract tested at various concentrations ranging from 10-1000 �g/mL exhibited a pronounced effect only on MCF-7 cells at the highest concentration tested and regarding the biosynthesized silver nanoparticles, the effect can be noted even at 1 � M also only in the case of MCF-7 cells.
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Lee, Jieun, Kwangil Yim, Dong-Min Kim, Young-Seok Song та Ahwon Lee. "miR-106b-5p, miR-17-5p to predict recurrence and progression in breast DCIS model based on TGFβ paradox." Journal of Clinical Oncology 35, № 15_suppl (2017): e23019-e23019. http://dx.doi.org/10.1200/jco.2017.35.15_suppl.e23019.
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e23019 Background: Ductal carcinoma in situ (DCIS) is a well-known precursor of invasive ductal carcinoma (IDC). Part of patients show disease recurrence as DCIS or IDC after local treatment, but there are no established markers for prediction of recurrence. Methods: Authors analyzed 30 patients diagnosed as pure DCIS, recurrent DCIS, and IDC progressed in DCIS background. miRNA was extracted from archival tissue, and hierarchical clustering of miRNA microarray was performed. We selected highly expressed miR-17-5p and miR-106b-5p as marker for recurrence of DCIS. Two miRNAs were transfected to MCF-12 and MCF-7 cell line. Cell proliferation assay and Western blot analysis was performed for analyzing the interaction between cell proliferation and TGFβ downstream pathway. Results: miR-106b-5p single and combined miR-106b-5p and miR-17-5p transfected MCF-12 cell line showed increased proliferation index compared to un-transfected cell line. In MCF-7, miR-106b and miR-17-5p transfected cell line showed inferior proliferation index compared to un-transfected cell line. Western blot analysis showed minimal increased expression of SMAD4, phosphorylated SMAD2 (pSMAD2) in miR-106b-5p and miR-17-5p transfected MCF-12 cell line. However, decreased expression of TGFBR2 and no interval change of SMAD4 and pSMAD2 was detected in miR-106b-5p and miR-17-5p transfected MCF-7 cell line. Conclusions: miR-106-5p, miR-17-5p showed increased expression in recurrent DCIS or IDC based on miRNA hierarchical microarray. miRNA transfected MCF-12 cell line showed increased proliferation index and activated TGFβ downstream pathway. miRNA transfection might have made normal cell line to pre-cancerous cell line and TGFβ pathway might have influenced to promote tumor proliferation, based on TGFβ paradox hypothesis.
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Dolgikh, Maria D., and Svetlana A. Zamorina. "The MCF-7 cell line: characteristics and interaction with nanomaterials of different structures." Вестник Пермского университета. Серия «Биология»=Bulletin of Perm University. Biology, no. 2 (2024): 231–47. http://dx.doi.org/10.17072/1994-9952-2024-2-231-247.
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This article provides a comprehensive overview of the MCF-7 breast cancer cell line, an epithelial-like adhesive cell line derived from the adenocarcinoma of breast ducts of a 69-year-old woman in the United States. It explores the historical context of its acquisition, the challenges encountered by researchers, its morphological characteristics, expression of intracellular and surface markers, genetic traits, and its wide-ranging applications in biomedical research, including drug testing, elucidation of cell biology, exploration of factors influencing cellular behavior, and the development of novel strategies for combating breast cancer. The MCF-7 cell line serves as a robust model for investigating various parameters such as cytotoxicity, functional dynamics, proliferation rates, and secretion activities when interacting with nanoparticles of diverse compositions, including metallic, non-metallic, organic, and their potential combinations. Notably, this article offers an in-depth analysis of the interactions between carbon nanomaterials and MCF-7 cells. Information for this article was gathered from scientific publication databases such as Google Scholar, CyberLeninka, PubMed, as well as from authoritative sources including NCBI, ATCC, the Russian Collection of Vertebrate Cell Cultures, and Cytion. The search encompassed publications issued from 1973 to March 2024.
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Alghamdi, Maha Ali, Mustafa R. Abdulbaqi, Dalal Sulaiman Alshaya та ін. "Design, synthesis and cytotoxic research of a novel antitumor model based on acrylamide–PABA analogs via β-tubulin inhibition". RSC Advances 15, № 23 (2025): 18490–500. https://doi.org/10.1039/d5ra02384j.
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A new set of novel acrylamide–PABA hybrids has been designed, synthesized and screened for their in vitro cytotoxicity against MCF-7 (breast cancer cell line), HepG2 (liver cancer cell line) and MCF-10A (normal health breast cell line).
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Lafi, Zainab, Walhan Alshaer, Lobna Gharaibeh, et al. "Synergistic combination of doxorubicin with hydralazine, and disulfiram against MCF-7 breast cancer cell line." PLOS ONE 18, no. 9 (2023): e0291981. http://dx.doi.org/10.1371/journal.pone.0291981.
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Disulfiram and hydralazine have recently been reported to have anti-cancer action, and repositioned to be used as adjuvant in cancer therapy. Chemotherapy combined with other medications, such as those that affect the immune system or epigenetic cell profile, can overcome resistance with fewer adverse effects compared to chemotherapy alone. In the present study, a combination of doxorubicin (DOX) with hydrazine (Hyd) and disulfiram (Dis), as a triple treatment, was evaluated against wild-type and DOX-resistant MCF-7 breast cancer cell line. Both wild-type MCF-7 cell line (MCF-7_WT) and DOX-resistant MCF-7 cell line (MCF-7_DoxR) were treated with different combination ratios of DOX, Dis, and Hyd followed by measuring the cell viability using the MTT assay. Synergism was determined using a combination index, isobologram analysis, and dose-reducing index. The anti-proliferation activity and mechanism of the triple combination were investigated by apoptosis analysis. The results showed a reduction in the IC50 values of DOX in MCF-7_WT cells (from 0.24 μM to 0.012 μM) and MCF-7_DoxR cells (from 1.13 μM to 0.44 μM) when treated with Dis (0.03μM), and Hyd (20μM) combination. Moreover, The triple combination DOX/Hyd/Dis induced significant apoptosis in both MCF-7_WT and MCF-7_DoxR cells compared to DOX alone. The triple combination of DOX, Dis, and Hyd showed a synergistic drugs combination to decrease the DOX dose needed to kill both MCF-7_WT and MCF-7_DoxR cancer cells and enhanced chemosensitivity to DOX.
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Chehkun, V. F., T. Borikun, and N. Yu Lukianova. "EFFECT OF 5-AZACYTIDINE ON miRNA EXPRESSION IN HUMAN BREAST CANCER CELLS WITH DIFFERENT SENSITIVITY TO CYTOSTATICS." Experimental Oncology 38, no. 1 (2016): 26–30. http://dx.doi.org/10.31768/2312-8852.2016.38(1):26-30.
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Aim: To analyze expression of miRNA in human breast cancer cells, sensitive and resistant to cisplatin and doxorubicin, and to explore possible modification of drug sensitivity via treatment of cells with 5-azacytidine (5-aza), a demethylating agent. Materials and Methods: The study was performed on wild-type MCF-7 cell line (MCF-7/S) and its two sublines MCF-7/Dox and MCF-7/DDP resistant to doxorubicin and cisplatin, respectively. Cells were treated with 5-aza, cisplatin, doxorubicin and their combinations. Relative expression levels of miRNA-221, -200b, -320a, -10b, -34a, -122 and -29b were examined, using qRT-PCR. The MTT assay was used to monitor cell viability. Results: We compared miRNA expression profiles in MCF-7/S and drug resistant MCF-7/Dox and MCF-7/DDP cells. Changes of miRNA-221, -200b, -320a, -10b, -34a, -122 and -29b were observed in both resistant cell lines. The most significant differences were found for miRNA-200b (decreased in 50.0 ± 2.6 and 63.0 ± 3.1 times for MCF-7/Dox and MCF7/DDP cells, respectively) and for oncogenic miRNA-221 levels (increase in 62.0 ± 5.7 times for MCF-7/Dox and 83.8 ± 7.2 times for MCF-7/DDP cells). 5-aza treatment caused an increase of miRNA-10b, -122, -200b levels in MCF-7/S cells, miRNA-34a, -10b, -122, -200b and -320a levels in MCF-7/Dox cells and miRNA-34a, -10b, -200b and -320a levels in MCF-7/DDP cells. Pretreatment of all studied lines with 5-aza resulted in the increase of their sensitivity to studied cytostatics. In particular, the IC50 of doxorubicin decreased by 2-, 4- and 3-fold for cell lines MCF-7/S, MCF-7/Dox and MCF-7/DDP cells, respectively, and IC50 of cisplatin in studied cultures decreased by 3-, 2- and 1.5-fold, respectively. Conclusions: It was shown that use of 5-aza can modify sensitivity of breast cancer cells to cytotoxic drugs not only by it’s demetylation effect, but also by changes in expression of miRNAs, involved in cell proliferation, migration and drug resistance development.
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K Singla, Rajeev, Piya Paul, Pawan G Nayak, and Varadaraj Bhat G. "Investigation of Anthramycin Analogs Induced Cell Death in MCF-7 Breast Cancer Cells." Indo Global Journal of Pharmaceutical Sciences 02, no. 04 (2012): 383–89. http://dx.doi.org/10.35652/igjps.2012.44.
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1,5-Benzodiazepines were synthesized using chalcone & o-phenylene diamine. Their structures were characterized using physical & spectral data. These molecules are analogous to anthracin, henceforth evaluated for their anti-breast cancer activity, using in vitro model MTT assay against MCF-7 cell line. Results revealed that these molecules are having potential growth inhibitory effect on the MCF-7 cell line, and certainly better than that of standard cisplatin. Docking studies revealed that these 1,5- benzodiazepine molecules may be working by inhibiting tyrosine kinase receptor, ErbB4 of human breast adenocarcinoma cell line(MCF-7/Michigan Cancer Foundation-7). © 2011 IGJPS. All rights reserved.
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Crawford, Brian H., AKM A. Hussain, and Nathan M. Jideama. "Evidence of a Genomic Biomarker in Normal Human Epithelial Mammary Cell Line, MCF-10A, That Is Absent in the Human Breast Cancer Cell Line, MCF-7." Journal of Biomedicine and Biotechnology 2006 (2006): 1–5. http://dx.doi.org/10.1155/jbb/2006/43181.
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This study investigated the use of DNA amplification fingerprinting (DAF) to identify biomarkers useful in the elucidating genetic factors that lead to carcinogenesis. The DNA amplification fingerprinting (DAF) technique was used to generate fingerprint profiles of a normal human mammary epithelial cell line (MCF-10A) and a human breast cancer cell line (MCF-7). When compared with one another, a polymorphic biomarker gene (262base pairs (bps)) was identified in MCF-10A but was not present in MCF-7. This gene was cloned from the genomic DNA of the MCF-10A cell line, and subjected to Genbank database analysis. The analysis of the nucleotide sequence polymorphic marker (Genbank account: AC079630) shows that this biomarker has100%homology with the nucleotide sequence of human chromosome12BAC RP11-476D10(bps19612-19353). The nucleotide sequence was used for possible protein translation product and the result obtained indicated that the gene codes for hypothetical protein XF2620. In order to evaluate the effects that the262bps biomarker would have on the morphology of MCF-7cells, it was transfected into MCF-7cells. There were observable changes in the morphology of the transfected cells. These changes included an increase in cell elongation and a decrease in cell aggregation.
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Sari, Yuastika Puspita, Hirowati Ali, and Aswiyanti Asri. "Identifikasi Ekspresi Gen Myc pada Subkultur MCF-7 Breast Cancer Cell Line dengan Sel Punca." Jurnal Kesehatan Andalas 7, no. 3 (2018): 424. http://dx.doi.org/10.25077/jka.v7.i3.p424-429.2018.
Full textAbstract:
Kanker payudara yang paling banyak ditemukan adalah subtipe luminal A dengan karakteristik Estrogen Reseptor+. Subjek penelitian akan diwakili oleh cell line MCF-7 dan Umbilical Cord Blood Mesenchymal Stem Cell (UCBMSC). Over expression Myc pada kanker payudara mengakibatkan sel kanker menjadi lebih invasif dan terjadi resistensi terhadap terapi hormonal. Tujuan penelitian ini adalah mengidentifikasi ekspresi gen Myc pada cell line MCF-7 sebelum dan sesudah pemberian sel punca. Penelitian ini menggunakan desain experimental secara in vitro. Sampel menggunakan MCF-7 dan sel punca yang dibagi menjadi 4 kelompok, yaitu K1 (kelompok kontrol MCF-7), K2 (kelompok kontrol sel punca), P1 (perlakuan subkultur MCF-7 dengan sel punca inkubasi 24 jam), dan P2 (inkubasi 48 jam). Kemudian, dilakukan isolasi RNA, sintesis cDNA, dan ekspresi Myc diperiksa menggunakan PCR dan elektroforesis. Analisa data yang digunakan adalan One Way ANOVA dan post-hoc LSD. Hasil analisis bivariat didapatkan p<0,05. Dari uji post-hoc LSD tidak ditemukan perbedaan yang bermakna antara K1 dengan P1, K1 dengan P2, dan K2 dengan P2. Namun, tetap ditemukan perbedaan yang bermakna antara K2 dengan P1 dan P1 dengan P2. Simpulan penelitian ini adalah tidak terdapat perbedaan bermakna ekspresi gen Myc pada subkultur antara MCF-7 breast cancer cell line dengan pemberian sel punca mesenkimal.
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Sari, Yuastika Puspita, Hirowati Ali, and Aswiyanti Asri. "Identifikasi Ekspresi Gen Myc pada Subkultur MCF-7 Breast Cancer Cell Line dengan Sel Punca." Jurnal Kesehatan Andalas 7, no. 3 (2018): 424. http://dx.doi.org/10.25077/jka.v7i3.897.
Full textAbstract:
Kanker payudara yang paling banyak ditemukan adalah subtipe luminal A dengan karakteristik Estrogen Reseptor+. Subjek penelitian akan diwakili oleh cell line MCF-7 dan Umbilical Cord Blood Mesenchymal Stem Cell (UCBMSC). Over expression Myc pada kanker payudara mengakibatkan sel kanker menjadi lebih invasif dan terjadi resistensi terhadap terapi hormonal. Tujuan penelitian ini adalah mengidentifikasi ekspresi gen Myc pada cell line MCF-7 sebelum dan sesudah pemberian sel punca. Penelitian ini menggunakan desain experimental secara in vitro. Sampel menggunakan MCF-7 dan sel punca yang dibagi menjadi 4 kelompok, yaitu K1 (kelompok kontrol MCF-7), K2 (kelompok kontrol sel punca), P1 (perlakuan subkultur MCF-7 dengan sel punca inkubasi 24 jam), dan P2 (inkubasi 48 jam). Kemudian, dilakukan isolasi RNA, sintesis cDNA, dan ekspresi Myc diperiksa menggunakan PCR dan elektroforesis. Analisa data yang digunakan adalan One Way ANOVA dan post-hoc LSD. Hasil analisis bivariat didapatkan p<0,05. Dari uji post-hoc LSD tidak ditemukan perbedaan yang bermakna antara K1 dengan P1, K1 dengan P2, dan K2 dengan P2. Namun, tetap ditemukan perbedaan yang bermakna antara K2 dengan P1 dan P1 dengan P2. Simpulan penelitian ini adalah tidak terdapat perbedaan bermakna ekspresi gen Myc pada subkultur antara MCF-7 breast cancer cell line dengan pemberian sel punca mesenkimal.
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Luís, Carla, André P. Sousa, Raquel Costa, et al. "Exploring the Anti-Cancer Properties of Pomegranate Peel Aqueous Extract." Applied Sciences 13, no. 21 (2023): 11773. http://dx.doi.org/10.3390/app132111773.
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The objective of this work is to evaluate the influence of pomegranate peel extract (PPE) in the behavior of breast cell lines (epithelial and tumor type) and related oxidative metabolism. Fruit-based functional foods have been the target of increasing scientific research for their physiological and pathophysiological properties. Pomegranate (Punica granatum) is a suitable example with both prophylactic and medicinal effects. MCF-7 cell line from tumor breast carcinoma, and MCF-10A cell line from normal epithelial mammary gland were used and subjected to different concentrations of PPE, ranging from 1 to 5 mM of gallic acid equivalents (GAE). Viability, proliferation, mobility, and cytotoxicity assays were performed along with the quantification of antioxidant enzymes, namely, catalase, superoxide dismutase (SOD) and reduced (GSH) and oxidized (GSSG) glutathione. We observed a decrease in viability and proliferation of MCF-7 cells, at higher concentrations of PPE, with no influence in epithelial cells. Interestingly, in a concentration-dependent manner, PPE triggered a significant decrease in migration on both cell lines, with a more pronounced effect in breast cancer cell line. Regarding antioxidant enzyme activity, on tumor cells higher concentrations of PPE decreased catalase activity and significantly increased SOD activity. Regarding GSH and GSSG, we observed different expression levels between MCF-7 and MCF-10A, with MCF-7 presenting lower levels compared to MCF-10A. GSH/GSSG ratio was notably higher in MCF-7 at 5 mM GAE. PPE exhibits anti-tumor effects without significantly affecting normal epithelial cells. Our work strengthens the potential antitumoral effect of PPE by reducing MCF-7 cell viability and proliferation through the imbalance of antioxidant enzymes.
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Ebrahimi Nigjeh, Siyamak, Fatimah Md Yusoff, Noorjahan Banu Mohamed Alitheen, Mehdi Rasoli, Yeap Swee Keong, and Abdul Rahman bin Omar. "Cytotoxic Effect of Ethanol Extract of Microalga,Chaetoceros calcitrans, and Its Mechanisms in Inducing Apoptosis in Human Breast Cancer Cell Line." BioMed Research International 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/783690.
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Marine microalgae have been prominently featured in cancer research. Here, we examined cytotoxic effect and apoptosis mechanism of crude ethanol extracts of an indigenous microalga,Chaetoceros calcitrans(UPMAAHU10) on human breast cell lines. MCF-7 was more sensitive than MCF-10A with IC50 value of3.00±0.65, whilst the IC50 value of Tamoxifen against MCF-7 was12.00±0.52 μg/mL after 24 hour incubation. Based on Annexin V/Propidium iodide and cell cycle flow cytometry analysis, it was found that inhibition of cell growth by EEC on MCF-7 cells was through the induction of apoptosis without cell cycle arrest. The apoptotic cells at subG0/G1 phase in treated MCF-7 cells at 48 and 72 hours showed 34 and 16 folds increased compared to extract treated MCF-10A cells which showed only 6 and 7 folds increased at the same time points, respectively. Based on GeXP study, EEC induced apoptosis on MCF-7 cells via modulation of CDK2, MDM2, p21Cip1, Cyclin A2, Bax and Bcl-2. The EEC treated MCF-7 cells also showed an increase in Bax/Bcl-2 ratio that in turn activated the caspase-dependent pathways by activating caspase 7. Thus, marine microalga,Chaetoceros calcitransmay be considered a good candidate to be developed as a new anti-breast cancer drug.
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Govindharaj, Mano, Sathishkumar Arumugam, Grace Nirmala, Mausumi Bharadwaj, and Kalaiselvam Murugiyan. "Effect of Marine Basidiomycetes Fulvifomes sp.-Derived Ergosterol Peroxide on Cytotoxicity and Apoptosis Induction in MCF-7 Cell Line." Journal of Fungi 5, no. 1 (2019): 16. http://dx.doi.org/10.3390/jof5010016.
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The aim of the present study is to extract the bioactive compounds which can induce the apoptosis in breast cancer cell line MCF-7 by marine basidiomycetes. Internal Transcribed Spacer (ITS) sequences based molecular taxonomic study confirmed that collected the marine basidiomycetes belongs to Fulvifomes sp. Further, the isolated compounds from the Fulvifomes sp. confirmed as ergosterol peroxide (EP) by spectroscopic studies. The compound inhibited 50% of the cell growth (IC50) at the concentration of 40 µg/mL and induced 90% cell death (IC 90) at the concentration of 80 µg/mL. The ergosterol peroxide generated Reactive Oxygen Species (ROS) and induced apoptotic cell death in MCF-7. Ethidium bromide/Acridine Orange (Et/Br) staining showed the increased number of early and late apoptosis in treated MCF-7 cells. The compounds treated cells indicated the significant loss of mitochondrial membrane potential (Δψm) with p < 0.05. The induction of apoptosis by marine basidiomycetes derived ergosterol peroxide was confirmed by chromatin condensation in MCF7 cells using Hoechst staining 33342.
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Leung, Euphemia, Ji Eun Kim, Marjan Askarian-Amiri, Graeme J. Finlay, and Bruce C. Baguley. "Evidence for the Existence of Triple-Negative Variants in the MCF-7 Breast Cancer Cell Population." BioMed Research International 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/836769.
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The MCF-7 line, derived in 1973 from a malignant pleural effusion, is one of the most commonly used culture models for human breast cancer. Despite its long history, MCF-7 is a surprisingly heterogeneous line. We previously showed that if MCF-7 cells were cultured for a prolonged period either in the absence of estrogen or in the presence of the antiestrogen tamoxifen, sub-lines were selected that differed from the parental line in ploidy, mean cell volume, signaling pathway usage, and drug sensitivity. This suggests a process of selection of preexisting variants rather than of adaptation of the parental line. All the sublines were estrogen receptor (ER) positive, raising the question of whether MCF-7 also contains ER negative variants. Here, we have looked for such variants by culturing for a prolonged period in the presence of fulvestrant, an estrogen antagonist that has no estrogen agonist activity. Three sublines were developed, each of which was ER negative, progesterone receptor (PR) negative and expressed only a low level of HER2. Each of the variants differed from the original MCF-7 line in ploidy, modal cell volume, and signaling pathway usage. Control experiments in which cells were cultured for a prolonged period in the absence of estrogen selected for variants that were ER and PR positive. The properties of the triple-negative MCF-7 were compared with those of an existing triple-negative cell line, MDA-MB-231, and human epidermal growth factor receptor 2 (HER2)+ SKBr3, as well as from those of the “immortalized” breast epithelial line MCF10A. The results suggest that new variants or phenotypes of MCF-7 might be generated continuously in culture, and by implication this might apply to breast cancer development and even normal breast epithelial developmentin vivo.
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Felthaus, Oliver, Simon Vedlin, Andreas Eigenberger, Silvan M. Klein, and Lukas Prantl. "Exosomes from Adipose-Tissue-Derived Stem Cells Induce Proapoptotic Gene Expression in Breast Tumor Cell Line." International Journal of Molecular Sciences 25, no. 4 (2024): 2190. http://dx.doi.org/10.3390/ijms25042190.
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Lipofilling is an option for breast reconstruction after tumor resection to avoid the complications of an implant-based reconstruction. Although some concerns exist regarding the oncological safety of tissue rich in mesenchymal stem cells with their proangiogenic and proliferation-supportive properties, there are also reports that adipose-tissue-derived stem cells can exhibit antitumoral properties. We isolated primary adipose-tissue-derived stem cells. Both conditioned medium and exosomes were harvested from the cell culture and used to treat the breast cancer cell line MCF-7. Cell viability, cytotoxicity, and gene expression of MCF-7 cells in response to the indirect co-culture were evaluated. MCF-7 cells incubated with exosomes from adipose-tissue-derived stem cells show reduced cell viability in comparison to MCF-7 cells incubated with adipose-tissue-derived stem-cell-conditioned medium. Expression of proapoptotic genes was upregulated, and expression of antiapoptotic genes was downregulated. The debate about the oncological safety of autologous fat grafting after tumor resection continues. Here, we show that exosomes from adipose-tissue-derived stem cells exhibit some antitumoral properties on breast cancer cell line MCF-7.
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Altıntop, Mehlika D., Belgin Sever, Ahmet Özdemir, et al. "Synthesis and Evaluation of a Series of 1,3,4-Thiadiazole Derivatives as Potential Anticancer Agents." Anti-Cancer Agents in Medicinal Chemistry 18, no. 11 (2019): 1606–16. http://dx.doi.org/10.2174/1871520618666180509111351.
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Background and Methods: In an attempt to develop potent antitumor agents, the synthesis of a series of N-(6-substituted benzothiazol-2-yl)-2-[(5-(arylamino)-1,3,4-thiadiazol-2-yl)thio]acetamides (1-14) was described and their cytotoxic effects on A549 human lung adenocarcinoma, MCF-7 human breast adenocarcinoma, HepG2 human hepatocellular carcinoma and NIH/3T3 mouse embryonic fibroblast cell lines were investigated using MTT assay. <p> Results: Phenyl-substituted compounds (8-14) were found to be more effective than naphthyl-substituted compounds (1-7) on cancer cells. Compounds 8, 9, 10, 12, 13 and 14 were identified as the most potent anticancer agents on MCF-7 and HepG2 cell lines and therefore their effects on DNA synthesis and apoptosis/necrosis in MCF-7 cell line were evaluated. Among these compounds, N-(6-methoxybenzothiazol-2-yl)-2-[(5- (phenylamino)-1,3,4-thiadiazol-2-yl)thio]acetamide (13) was the most selective anticancer agent against MCF-7 and HepG2 cell lines with a SI value of 100. On the other hand, compounds 8, 9, 10, 12, 13 and 14 inhibited DNA synthesis in MCF-7 cell line in a dose-dependent manner. Flow cytometric analyses clearly indicated that the compounds showed significant anticancer activity against MCF-7 cell line via the induction of apoptosis dose dependently. <p> Conclusion: According to in vitro assays, compounds 8, 9, 10, 12, 13 and 14 stand out as promising candidates for further studies.
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Seweryn, Ewa, Jadwiga Pietkiewicz, Iwona S. Bednarz-Misa, et al. "Localization of Enolase in the Subfractions of a Breast Cancer Cell Line." Zeitschrift für Naturforschung C 64, no. 9-10 (2009): 754–58. http://dx.doi.org/10.1515/znc-2009-9-1023.
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Enolase detected on the cell surface may be a receptor for certain ligands, especially for plasminogen. It is important for the pathogen invasiveness and in the development of a tumour. Therefore, we sought to preliminarily determine the enolase location and catalytic activity in the subfractions of MCF-7 cells. The latter was done on intact cells and in subfractions of MCF-7 cells. We identified enolase by immunoblotting. The binding of human plasminogen to enolase was performed by immunoblotting using monoclonal antibodies against plasminogen. The intact MCF-7 cells demonstrated activity of enolase. Enolase in postnuclear and perinuclear fractions is catalyticly active too. We identified the enolase protein in immunoblots of these fractions, except for the nuclear subfraction. These results provide evidence that enolase is present on the intact surface of MCF-7 cells and in post- and perinuclear fractions. The surface protein maintained catalytic activity, which suggests that its location in the plasma membrane didn’t change the active centre of the enzyme
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Devi, Senthil, Velliyagounder Venkateswaran, and Kanakaraj Lakshmi. "Cytotoxic evaluation of curcumin and quercetin in MCF-7 cell lines." World Journal of Biology Pharmacy and Health Sciences 17, no. 2 (2024): 149–54. https://doi.org/10.5281/zenodo.11283598.
Full textAbstract:
Cytotoxic evaluation of Curcumin and Quercetin in MCF-7 cell lines was performed to assess their potential anticancer activity. MCF-7 is a widely used breast cancer cell line, and evaluating the cytotoxic effects of the compounds on these cells can provide valuable information about their potential as an anticancer agent. Curcumin, a naturally occurring compound found in turmeric, has been extensively studied for its potential anticancer properties, including its effects on MCF-7 cell lines. MCF-7 cells are commonly used as a model for studying breast cancer. Quercetin, a flavonoid found in various fruits, vegetables, and plant-based foods, has also been studied for its potential anticancer effects, including its effects on MCF-7 cell lines. The combination of curcumin and quercetin has been investigated for its potential synergistic effects on MCF-7 cell lines, aiming to enhance the anticancer activity of both compounds. The synergistic effects observed in the combination of curcumin and quercetin on MCF-7 cells suggests that the compounds may act through complementary mechanisms, enhancing their individual anticancer activities.
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Gadge Priyanka Varade, Seema. "Chaulmoogra Oil Nanoemulsion and in Vitro Anti-Cancer Studies Using MCF 7 Cell Line." International Journal of Science and Research (IJSR) 13, no. 2 (2024): 423–30. http://dx.doi.org/10.21275/sr24202161337.
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Misiura, Magdalena, Ilona Ościłowska, Katarzyna Bielawska, Jerzy Pałka, and Wojciech Miltyk. "PRODH/POX-Dependent Celecoxib-Induced Apoptosis in MCF-7 Breast Cancer." Pharmaceuticals 14, no. 9 (2021): 874. http://dx.doi.org/10.3390/ph14090874.
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Celecoxib (Cx), an inhibitor of cyclooxygenase 2, induces apoptosis of cancer cells. However, the mechanism of the chemopreventive effect remains not fully understood. We aimed to investigate the role of PRODH/POX that is involved in the regulation of apoptosis induced by celecoxib. MCF-7 breast cancer cell line and the corresponding MCF-7 cell line with silenced PRODH/POX (MCF-7shPRODH/POX) were used. The effects of Cx on cell viability, proliferation, and cell cycle were evaluated. The expressions of protein markers for apoptosis (Bax, caspase 9, and PARP) and autophagy (Atg5, Beclin 1, and LC3A/B) were investigated by Western immunoblotting. To analyze the proline metabolism, collagen biosynthesis, prolidase activity, proline concentration, and the expression of proline-related proteins were evaluated. The generation of ATP, ROS, and the ratio of NAD+/NADH and NADP+/NADPH were determined to test the effect of Cx on energetic metabolism in breast cancer cells. It has been found that Cx attenuated MCF-7 cell proliferation via arresting the cell cycle. Cx induced apoptosis in MCF-7 breast cancer cells, while in MCF-7shPRODH/POX, autophagy occurred more predominantly. In MCF-7 breast cancer cells, Cx affected proline metabolism through upregulation of proline biosynthesis, PRODH/POX and PYCRs expressions, PEPD activity, and downregulation of collagen biosynthesis. In MCF-7shPRODH/POX clones, these processes, as well as energetic metabolism, were remarkably suppressed. The data for the first time suggest that celecoxib induces apoptosis through upregulation of PRODH/POX in MCF-7 breast cancer cells.
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Ghali, Sanaa A., Furdos N. Jafer, and Areej H. S. Aldhaher. "Evaluation Secondary Metabolite Extract Produced by Aspergillus terreus Isolated from Poultry Droppings as Anticancer Agent." Scholars International Journal of Chemistry and Material Sciences 7, no. 10 (2024): 132–39. http://dx.doi.org/10.36348/sijcms.2024.v07i10.001.
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Malignant diseases are considered one of the problems of our time, and cancer is defined as the abnormal growth of malignant cells. It is widely accepted as the leading cause of death. There is currently no proven cancer cure. As a result, scientists have concentrated on creating secure and efficient therapies. Research has been done on the effects of naturally occurring substances that have been extracted from living things, such fungus on cancer cells. This study sought to determine the natural products' efficacy against human cancer cell line MCF-7. After A. terreus was isolated from samples of chicken droppings, it was grown on potato and Sabouraud Dextrose Agars (SDA and PDA) with chloramphenicol media. It was then identified using the extracted genomic DNA, the internal transcribed spacer (ITS) region was amplified and sequenced. After 30 days of incubation at 27°C, natural metabolite products were also recovered from the fermentation medium using the ethyl acetate extraction technique. The effectiveness of the fungal extract against the human cancer cell line MCF-7 and the normal human cell line NHF cell was also determined after incubation for 27 hours with the natural extract. The treated human cancer cell line MCF-7 showed decrease of proliferation, whereas the normal human cell line NHF showed no effect. Significant inhibitor compared to cancer line. The IC50 values for MCF-7 cell lines and NHF normal human cell lines were 7.672 and 1431 μg/mL, respectively. In summary, MCF-7 was affected by the natural extract extracted from A. terreus, in contrast to the control. When these results were combined, they showed that the fungal extract is an effective anti-cancer treatment.
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Vali, Faeze, Vahid Changizi, and Majid Safa. "Synergistic Apoptotic Effect of Crocin and Paclitaxel or Crocin and Radiation on MCF-7 Cells, a Type of Breast Cancer Cell Line." International Journal of Breast Cancer 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/139349.
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Background.Chemotherapy, radiotherapy, and surgery are routine treatments of breast cancer. However, these methods could only improve the living survival. Nowadays the combined therapy including herbals such as crocin is to study for improving breast cancer treatment. The purpose of this study was to evaluate the effects of crocin, paclitaxel, and radiation on MCF-7 cell.Methods.To evaluate the effect of crocin, paclitaxel, and radiation on survival rate of MCF-7 cells MTT assay was done. To investigate the apoptotic effect of experimental groups PI-flow cytometry was used and expression of apoptotic proteins (caspase-7, caspase-9, PARP, and p53) was studied by western blot.Results.This study revealed that the combined therapy of 0.01µmol/mL paclitaxel and 2.5 mg/mL crocin after 48 h could cause IC50 for MCF-7 cell line. This study showed that the combined therapy of 2 Gy gamma radiation with crocin could rise apoptosis in MCF-7 cell line from 21% (related to using 2 Gy gamma radiation alone) to 46.6%.Conclusion.Crocin and paclitaxel and crocin and gamma radiation had synergistic effect on MCF-7 cell line to get more significant apoptosis.
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Devi Senthil, Venkateswaran Velliyagounder, and Lakshmi Kanakaraj. "Cytotoxic evaluation of curcumin and quercetin in MCF-7 cell lines." World Journal of Biology Pharmacy and Health Sciences 17, no. 2 (2024): 149–54. http://dx.doi.org/10.30574/wjbphs.2024.17.2.0048.
Full textAbstract:
Cytotoxic evaluation of Curcumin and Quercetin in MCF-7 cell lines was performed to assess their potential anticancer activity. MCF-7 is a widely used breast cancer cell line, and evaluating the cytotoxic effects of the compounds on these cells can provide valuable information about their potential as an anticancer agent. Curcumin, a naturally occurring compound found in turmeric, has been extensively studied for its potential anticancer properties, including its effects on MCF-7 cell lines. MCF-7 cells are commonly used as a model for studying breast cancer. Quercetin, a flavonoid found in various fruits, vegetables, and plant-based foods, has also been studied for its potential anticancer effects, including its effects on MCF-7 cell lines. The combination of curcumin and quercetin has been investigated for its potential synergistic effects on MCF-7 cell lines, aiming to enhance the anticancer activity of both compounds. The synergistic effects observed in the combination of curcumin and quercetin on MCF-7 cells suggests that the compounds may act through complementary mechanisms, enhancing their individual anticancer activities.
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Timur, Mujgan, S. Halide Akbas, and Tomris Ozben. "The effect of Topotecan on oxidative stress in MCF-7 human breast cancer cell line." Acta Biochimica Polonica 52, no. 4 (2005): 897–902. http://dx.doi.org/10.18388/abp.2005_3404.
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Topotecan, a semisynthetic water-soluble derivative of camptothecin exerts its cytotoxic effect by inhibiting topoisomerase I and causes double-strand DNA breaks which inhibit DNA function and ultimately lead to cell death. In previous studies it was shown that camptothecin causes ROS formation. The aim of this study was to investigate if Topotecan like camptotecin causes oxidative stress in MCF-7 human breast cancer cell line. Determining the oxidant effect of Topotecan may elucidate a possible alternative mechanism for its cytotoxicity. MCF-7 cells were cultured and exposed to Topotecan for 24 h at 37 degrees C. The viability of the cells (% of control) was measured using the colorimetric 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. Lipid peroxidation (TBARS), protein oxidation (carbonyl content), sulfhydryl, glutathione (GSH) levels, superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) activities were determined in MCF-7 cells with and without Topotecan incubation. We found the IC(50) concentration of Topotecan as 0.218 microM in MCF-7 cells. This concentration of Topotecan was used in the incubations of the cells. Our data indicated increased oxidative status, as revealed by increased lipid peroxidation and protein oxidation, and decreased GSH and sulfhydryl levels in MCF-7 cells exposed to Topotecan compared to control cells. In contrast, there was a slight increase in SOD and a significant increase in GPx and catalase activity in MCF-7 cells incubated with Topotecan compared to the control. These results support our hypothesis that Topotecan increases oxidative stress in MCF-7 cells.
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Wang, Cheng, Jing Wang, Han Jiang, Min Zhu, Baoguo Chen, and Weiguang Bao. "In Vitro Study on Apoptosis Induced by Strontium-89 in Human Breast Carcinoma Cell Line." Journal of Biomedicine and Biotechnology 2011 (2011): 1–7. http://dx.doi.org/10.1155/2011/541487.
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Many radiopharmaceuticals used for medical diagnosis and therapy are beta emitters; however, the mechanism of the cell death caused by beta-irradiation is not well understood. The objective of this study was to investigate the apoptosis of human breast carcinoma MCF-7 cell lines induced by Strontium-89 (89Sr) and its regulation and control mechanism. High-metastatic Breast Carcinoma MCF-7 cells were cultured in vitro using89Sr with different radioactive concentration. The inhibition rate of cell proliferation was measured by MTT color matching method. The cell cycle retardation, apoptosis conditions, mitochondrion transmembrane potential difference and Fas expression were tested and analyzed. The genes P53 and bcl-2 expressions was also analyzed using immunity histochemical analysis. After being induced by89Sr with various of radioactive concentration, it was found that the inhibition of cell proliferation of MCF-7 cells was obviously, the retardation of cell cycle occurred mainly in G2-M. It was also found that the obvious apoptosis occurred after being induced by89Sr, the highest apoptosis rate reached 46.28%. The expressions of Fas acceptor and P53 gene increased, while bcl-2 gene expression decreasesd. These findings demonstrate that in the ranges of a certain radioactive concentration, the inhibition rate of MCF-7 cell proliferation and retardation of cell cycle had positive correlation with the concentration of89Sr. And the mitochondrion transmembrane potential decrease would induce the apoptosis of MCF-7 cell notably, which were controlled by P53 and bcl-2 genes, involved with the Fas acceptor.
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Robev, Bozhil, Ivan Iliev, Iana Tsoneva, et al. "Antitumor Effect of Iscador on Breast Cancer Cell Lines with Different Metastatic Potential." International Journal of Molecular Sciences 24, no. 6 (2023): 5247. http://dx.doi.org/10.3390/ijms24065247.
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Studies were performed for the first time on the effect of Iscador Qu and Iscador M on phototoxicity, cytotoxicity, antiproliferative activity, changes in ξ-potential of cells, membrane lipid order, actin cytoskeleton organization and migration on three breast cancer lines with different metastatic potential: MCF10A (control), MCF-7 (low metastatic) and MDA-MB231 (high metastatic) cells. The tested Iscador Qu and M did not show any phototoxicity. The antiproliferative effect of Iscador species appeared to be dose-dependent and was related to the metastatic potential of the tested cell lines. A higher selectivity index was obtained for Iscador Qu and M towards the low metastatic MCF-7 cell line compared to the high metastatic MDA-MB-231. Iscador Qu demonstrated higher selectivity for both cancer cell lines compared to Iscador M. The malignant cell lines exhibited a decrease in fibril number and thickness regardless of the type of Iscador used. The strongest effect on migration potential was observed for the low metastatic cancer cell line MCF-7 after Iscador treatment. Both Iscador species induced a slight increase in the percentage of cells in early apoptosis for the low and high metastatic cell lines, MCF-7 and MDA-MB-231, unlike control cells. Changes in the zeta potential and membrane lipid order were observed for the low metastatic MCF-7 cell line in contrast to the high metastatic MDA-MB-231 cells. The presented results reveal a higher potential of Iscador as an antitumor agent for the low metastatic cancer cell line MCF-7 compared to the high metastatic one. Iscador Qu appears to be more potent compared to Iscador M, but at this point, the exact mechanism of action is still unclear and needs further investigations.
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K, Neevedha, Anitha E, Thulasi Gokul, Isswariya Anandan, and S. Priestly Vivekkumar. "Comparison of Anticancer Activity Between Thymoquinone and Tamoxifen , Thymoquinone + Tamoxifen 0n Mcf -7 Cell Line of Human Breast Cancer –An Invitro Study." Biomedical and Pharmacology Journal 17, no. 2 (2024): 1329——1334. http://dx.doi.org/10.13005/bpj/2946.
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This study aims at evaluating the anticancer effect on the MCF-7 (Michigan Cancer Foundation-7) cell line of human breast cancer using Thymoquinone and Tamoxifen alone as well as in combination therapy by 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT) Test. NCCS in Pune provided the MCF-7 cell line. The cells were kept at 37°C in a humidified medium of 50µg/ml CO2 in Minimal Essential Medium added with 10percent FBS (Foetal Bovine Serum), streptomycin (100µg/ml), as well as penicillin (100U/ml). MTT-(3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl tetrazolium bromide) test was conducted on MCF-7 cell line for Thymoquinone and Tamoxifen as sole and combination therapy. Measurements were performed using UV (Ultra-Violet)-spectrophotometer at 570-nanometre absorbance and the content needed for a 50 percent inhibitory concentration (IC50) was calculated and evaluated graphically. IC 50 of Thymoquinone on MCF 7 was found to be at 31.2 µg/ml and Tamoxifen was at 62.5 µg/ml were as in combination therapy the IC 50 was found to be at 7.8 µg/ml. There is a remarkable reduction in concentration to achieve IC 50 percentage in combination therapy with a comparison with individual therapy. Therefore, the combination therapy of Thymoquinone and Tamoxifen on the MCF-7 cell line is more efficacious when compared to individual treatment on cell viability inhibition.
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Haridas, Renjini. "IN-VITRO CYTOTOXICITY ACTIVITY OF MALAXIS RHEEDEI SW METHANOL EXTRACT AGAINST HELA CELL LINE AND MCF- 7 CELL LINE." Asian Journal of Pharmaceutical and Clinical Research 9, no. 6 (2016): 244. http://dx.doi.org/10.22159/ajpcr.2016.v9i6.14298.
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Cancer is a group of diseases caused by loss of cell cycle control. Cancer is associated with abnormal uncontrolled cell growth. The study was aimed to evaluation of the anticancer activity of the Malaxis rheedei Sw. on the HeLa cell line and MCF- 7cell line. The whole plant part of the Malaxis rheedei methanolic extract were tested for its inhibitory effect on HeLa Cell Line and MCF- 7cell line. The cytotoxicity of Malaxis rheedei on HeLa cell and MCF- 7cell line were evaluated by the MTT assay. Malaxis rheedei methanolic extract has significant cytotoxicity effect on MCF- 7cell line in concentration range between 18.75 to 300 µg/ml by using MTT assay and study also showed that inhibitory action on HeLa cell line inconcentration range between 18.75 to 300 µg/ml by using MTT assay. Methanol extract of the whole plant part of Malaxis rheedei was found to be 7.3%, 16.6%, 25.4%, 36.3% and 47.1%toxic in HeLa cell line and 7.9%, 13.9%, 26%, 48.4% and 66.3% toxic in MCF- 7cell line. IC50 value of Malaxis rheedei on MCF- 7cell was 167.76 µg/ml and IC50 value of Malaxis rheedei on HeLa Cell was not found by MTT assay. From the performed assay, methanol extract of these drug shows greater activity on MCF- 7cell line and little activity on HeLa cell line and that mean Malaxis rheedei can be used as anticancer activity.Keywords: Cytotoxicity Activity, MTT Assay, Malaxis rheedei Sw. , HeLa CellLine, MCF- 7Cell Line.
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Gaber, Ahmed, Walaa F. Alsanie, Majid Alhomrani, Abdulhakeem S. Alamri, Ibrahim M. El-Deen, and Moamen S. Refat. "Synthesis of 1-[(Aryl)(3-amino-5-oxopyrazolidin-4-ylidene) methyl]-2-oxo-1,2-dihydroquinoline-3-carboxylic Acid Derivatives and Their Breast Anticancer Activity." Crystals 11, no. 5 (2021): 571. http://dx.doi.org/10.3390/cryst11050571.
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This research aimed to produce new 1-[(aryl)(3-amino-5-oxopyrazolidin-4-ylidene) methyl]-2-oxo-1,2-dihydroquinoline-3-carboxylic acid derivatives and check their anticancer effect against the breast cancer MCF-7 cell line. The 2-oxo-1,2-dihydroquinoline-3-carboxylic acid (4) compound was obtained by hydrolyzing ethyl 2-oxo-1,2-dihydroquinoline-3-carboxylate (2) with thiourea and anhydrous potassium carbonate ethanol, which was then treated with ethyl 3-substituted 2-cyanoacrylates (6) in the presence of triethylamine in diethyl formamide to give 1-[2-(ethoxy)carbonyl-2-cyano-1-arylvinyl]-2-oxo-1,2-dihydroquinoline-3-carboxylic (7a,d). Cyclization of compound 7 with hydrazine hydrate ethanol inferred the association of 1-[(aryl)(3 amino-5-oxopyrazolidin-4-ylidene)methyl-2-oxo-1,2-dihydroquinol-3-carboxylates (8a,d). Spectroscopic and micro-analytical techniques such as IR, NMR, and elemental analysis were used to validate the structure of the synthesized organic compounds. The anticancer effects of the synthesized compounds 7a–d and 8a–d were tested by using the MTT assay on the MCF-7 cell line. When compared to the reference compound Dox, the compounds 7b,c and 8a–c demonstrated strong anticancer activity against the MCF-7 cell line. The anticancer effects of the synthesized compounds 7a–d and 8a–d were tested against the MCF-7 cell line, using MTT assay. The compounds 7b,c and 8a–c showed significant anticancer activity compared to the reference compound Dox against the MCF-7 cell line.
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Narvaez, C. J., K. Vanweelden, I. Byrne, and J. Welsh. "Characterization of a vitamin D3-resistant MCF-7 cell line." Endocrinology 137, no. 2 (1996): 400–409. http://dx.doi.org/10.1210/endo.137.2.8593782.
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Vassy, J., S. Portet, M. Beil, et al. "Weightlessness acts on human breast cancer cell line MCF-7." Advances in Space Research 32, no. 8 (2003): 1595–603. http://dx.doi.org/10.1016/s0273-1177(03)90400-5.
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Salvatore, Carmela, Mario Bigioni, Elisabetta Maria lafrate, Maurizio Cianfriglia, and Stefano Manzini. "FCE 24517-resistant MCF-7 human breast cancer cell line." Anti-Cancer Drugs 10, no. 7 (1999): 663–70. http://dx.doi.org/10.1097/00001813-199908000-00006.
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Hansen, Christina M�rk, Lili Rohde, Mogens W. Madsen, et al. "MCF-7/VDR: A new vitamin D resistant cell line." Journal of Cellular Biochemistry 82, no. 3 (2001): 422–36. http://dx.doi.org/10.1002/jcb.1162.
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Wulandari, Asri Peni, R. R. Indry Noviarin Examinati, Madihah ., Desi Harneti Putri Huspa, Poniah Andayaningsih, and Poniah Andayaningsih. "CYTOTOXICITY OF METABOLITES PRODUCED BY ENDOPHYTIC FUNGUS CLADOSPORIUM SP. ISOLATED FROM MARINE MACROALGAE ON INVITRO MCF7, HELA, AND DU-145 CELL LINES." International Journal of Pharmacy and Pharmaceutical Sciences 10, no. 8 (2018): 72. http://dx.doi.org/10.22159/ijpps.2018v10i8.25181.
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Objective: To investigate the in vitro cytotoxicity effect of the crude ethyl acetate extract of Cladosporium sp. on MCF-7, HeLa, and DU-145 cell lines.Methods: In vitro cytotoxicity was evaluated by tetrazolium reduction assay. The percentage of cell inhibition was analyzed using probit analysis to obtain 50% inhibitory concentration (IC50). Morphological alteration of the cell lines after exposure with extract was observed under an inverted microscope.Results: The ethyl acetate extract of the metabolite performed an anticancer activity for cancer cell line MCF-7, HeLa, and DU-145 with IC50 respectively 8.46 μg/ml; 9.87 μg/ml; and 98.03 μg/ml. The extract shows greater the anticancer activity and has strong antiproliferative on MCF-7 and HeLa cell line than DU-145. Confirmation morphological were observed under the inverted microscope showed a morphological change in cancer cells when incubated with the extract.Conclusion: From the performed assay, the crude extract of Cladosporium sp. exhibit cytotoxic activity against MCF-7, HeLA, and DU-145.
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Abbaspour, Hossein, and Afshar Safipour. "Curcumin inhibits the expression of ornithine decarboxylase and adenosine deaminase genes in MCF-7 human breast cancer cells." Archives of Biological Sciences 70, no. 4 (2018): 639–45. http://dx.doi.org/10.2298/abs180209025a.
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Curcumin is the active ingredient of Curcuma longa, which inhibits the development of malignant cells. Prevention and treatment of cancer by natural compounds, especially curcumin, and understanding the mechanism of action, is an area of interest in cancer research. In this study, we evaluated the effects of curcumin on cell proliferation, ornithine decarboxylase 1 (ODC1) and adenosine deaminase (ADA) gene expression in human breast cancer cell line (MCF-7) as compared to the non-cancer line (MCF-10A). Both cell lines were subjected to increasing doses of curcumin, ranging from 0 to 30 ?g/mL. Cell viability was quantified by the MTT assay. In vitro clonogenic survival assay was performed on MCF-7 cells. Expression of ADA and ODC1 were analyzed by Western blotting and qRT-PCR. Curcumin inhibited the growth of malignant cells in a time- and dose-dependent manner. The calculated IC50 value for MCF-7 cells in 48 h was 12 ?g/mL. Forty-five to 70% decreases in colony formation were observed in MCF-7 cells treated with 30-60 ?g/mL curcumin, respectively. Our data revealed a dose-dependent downregulation of ODC1 and ADA expression and respective enzyme activities by curcumin, which correlated with decreased proliferation in the MCF-7 breast cancer cell line. These data suggest that curcumin represses the proliferation of breast cancer cells through downregulation of ODC1 and ADA gene expression, which might be another mechanism of curcumin-mediated tumor growth inhibition.
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Al-marzook, Farah A., and Rabab Omran. "CYTOTOXIC ACTIVITY OF ALKALOIDS EXTRACTED FROM THREE IRAQI PLANTS AGAINST BREAST CANCER CELL LINE." Asian Journal of Pharmaceutical and Clinical Research 10, no. 9 (2017): 78. http://dx.doi.org/10.22159/ajpcr.2017.v10i9.19134.
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Objectives: Screening for cytotoxic activity of total alkaloid extracts of Eucalyptus camaldulensis, Aloe vera, and Capparis spinosa against breast cancer cell line Michigan Cancer Foundation-7 (MCF-7) and nontumorigenic fetal hepatic cell line (WRL-68).Methods: The plant powders were extracted separately with 80% methanol and chloroform at pH 2 and 10. Total alkaloids were detected qualitatively by Mayer’s, Dragendorff’s, and Hager‘s reagents and estimated quantitatively by bromocresol green spectrophotometry depending on the atropine calibration curve. The cytotoxic activity was evaluated by 3-[4, 5-dimethylthiazoyl]-2, 5-diphenyltetrazolium bromide assay.Results: The extract of E. camaldulensis had highest total alkaloid content (24.50±1.70 mg/100 g plant dry weight) than the others. The total alkaloids (400 μg/ml) of E. camaldulensis reduced the cell viability of both cell lines MCF-7 and WRL-68 to 45.25±2.20% and 92.00±1.55%, respectively, and the inhibitory concentration 50% of cells were 375.50 μg/ml for MCF-7. The alkaloids of C. spinosa had effect 79.80±7.08% and 89.50±0.09% against MCF-7and WRL-68, respectively. While the total alkaloids of A. vera had slightly effect on both cell lines.Conclusion: Plant alkaloids appeared variable cytotoxic activity against cancer and normal cell lines depending on the alkaloid contents, concentrations, purity, and cell line types.
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Widiyastuti, Yuli, Rarastoeti Pratiwi, Sugeng Riyanto, and Subagus Wahyuono. "Cytotoxic activity and apoptosis induction of avocado Persea americana Mill. seed extract on MCF-7 cancer cell line." Indonesian Journal of Biotechnology 23, no. 2 (2018): 61. http://dx.doi.org/10.22146/ijbiotech.32141.
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Avocado Persea Americana Mill. is a commercially important crop and studies have shown that the pulp may have benefits to cardiovascular health, dermatological health and possibly anti-cancer activity. Avocado seeds have several medicinal properties such as anti-hyperglycemic, antimicrobial, antioxidant and anti-inflammation. This study aim to evaluate the effect of avocado seed extract on viability and apoptosis of breast cancer cell line MCF-7. The anticancer effect was evaluated by cytotoxic test using MTT assay and the effect on apoptosis and cell cycle was examined by flow cytometry method. The cytotoxic test showed that chloroform extract had strong cytotoxic activity against MCF-7 cell lines with IC50 value of 94.87 µg/mL. Furthermore, the chloroform extract was partitioned with methanol and yield of soluble methanol fraction (FLM) and non soluble methanol fraction (FTLM). The cytotoxic activity of the methanol soluble fraction (FLM) and non soluble methanol fraction (FTLM) against MCF-7 cell lines was increased with IC50 of 34.52 and 66.03 µg/mL, respectively. Flow cytometry analysis using annexin-V and propidium iodide staining revealed that methanol soluble fraction could induce apoptosis and modulating the cell cycle arrest in MCF-7 cell. This research indicated that avocado seed has a potency to induce apoptosis and as anti-proliferative to MCF-7 cells lines.
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Lee, Ting Hun, Yoshiny Maruthai, Nor Haslinda Abd Aziz, et al. "Chemopreventive and immunoadjuvant properties of standardised edible bird’s nest extract on human breast cancer cell line." International Food Research Journal 30, no. 2 (2023): 472–86. http://dx.doi.org/10.47836/ifrj.30.2.17.
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The present work investigated the chemopreventive and immunoadjuvant properties of edible bird’s nest (EBN) extract on breast cancer cell line (MCF-7). Specifically, the cytotoxicity level of EBN extracts (HMG, EHMG, pHMG) against MCF-7, human immune cells of cytotoxic T cells, and monocytes (CD8+ and CD14+) were evaluated by measuring the production of pro-apoptotic and anti-apoptotic molecules released in single and co-culture of MCF-7, CD8+, and CD14+ cells, before and after EBN treatment. The highest cytotoxic effect towards MCF-7 using IC50 of 15 µg/mL was demonstrated by HMG but no effects on CD8+ and CD14+, with cell viability of more than 90%. At the mRNA level, activated CD8+ and CD14+ depicted increased pro-apoptotic gene expression after HMG treatment in co-culture. Additionally, HMG treatment increased apoptosis by down-regulating the regulation of anti-apoptotic genes and up-regulating the pro-apoptotic genes in MCF-7. ELISA and multiplex assay reflected increased pro-apoptotic factors, and decreased anti-apoptotic soluble factors, by non-activated and activated CD8+ and CD14+, in a single or co-culture with MCF-7 after HMG treatment. In conclusion, HMG extract possesses immunoadjuvant properties that can be a potential anticancer agent without causing any deleterious effects on the human immune cells.
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Gaston, A. Kpotin, and S. Gómez-Jeria Juan. "A Quantum-Chemical Study of the Relationships between Electronic Structure and Anti-Proliferative Activities of Quinoxaline Derivatives on the K562 and MCF-7 Cell Lines." Chemistry Research Journal 3, no. 5 (2018): 20–33. https://doi.org/10.5281/zenodo.13762723.
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We present here the results ofa study of the relating electronic structure with theanti-proliferative activities of quinoxaline derivatives on the K562 and MCF-7 cells lines. The Klopman-Peradejordi-Gómez method was employed. For each cell line we obtained a statistically significant equation relating the variation of the logarithm of IC<sub>50</sub>with the variation of the numerical values of a set of some local atomic reactivity indices. The process seems to be mainly orbital-controlled for the K562 cell line and orientational and orbital-controlled for the MCF-7 cell line. Based on the analysis of the results, a partial two-dimensional pharmacophore was built for each of the two cell lines. The results should be useful to propose new molecules with higher activity.
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Kijjoa, Anake, Sonia Santos, Tida Dethoup, et al. "Sartoryglabrins, Analogs of Ardeemins, from Neosartorya Glabra." Natural Product Communications 6, no. 6 (2011): 1934578X1100600. http://dx.doi.org/10.1177/1934578x1100600615.
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Chemical investigation of a collection of the fungus Neosartorya glabra from Thailand furnished sartoryglabins A-C (1a, 1b and 2) which are analogs of the reverse prenylated indole alkaloids known as (-) ardeemins. Structures of these compounds were established by NMR spectrometry and an X-ray analysis. Sartoryglabins A-C were evaluated for their in vitro growth inhibitory activity on three human tumor cell lines: MCF-7 (breast adenocarcinoma), NCI-H460 (non-small cell lung cancer) and A375-C5 (melanoma). All the compounds exhibited strong to moderate activity against the MCF-7 cell line but weak or no activity against the NCI-H460 and A375-C5 cell lines. Sartoryglabin B was found to exhibit selectivity towards the MCF-7 cell line.