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Academic literature on the topic 'Prostate – Cancer – Modèles animaux'
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Journal articles on the topic "Prostate – Cancer – Modèles animaux"
Völkel, Pamela, Babara Dupret, Xuefen Le Bourhis, and Pierre-Olivier Angrand. "Le modèle poisson zèbre dans la lutte contre le cancer." médecine/sciences 34, no. 4 (April 2018): 345–53. http://dx.doi.org/10.1051/medsci/20183404016.
Full textBarrière, C., F. El Marjou, D. Louvard, and S. Robine. "Apport des modèles animaux pour l'étude du rôle de K-ras dans l'oncogenèse." Bulletin du Cancer 96, spec4 (December 2009): S5—S14. http://dx.doi.org/10.1684/bdc.2009.0992.
Full textSritharan, Jeavana, Jill S. MacLeod, Christopher B. McLeod, Alice Peter, and Paul A. Demers. "Risque de cancer de la prostate par profession dans le Système de surveillance des maladies professionnelles de l’Ontario, Canada." Promotion de la santé et prévention des maladies chroniques au Canada 39, no. 5 (May 2019): 195–205. http://dx.doi.org/10.24095/hpcdp.39.5.02f.
Full textJafari, Siavash, Mahyar Etminan, and Kourosh Afshar. "Nonsteroidal anti-inflammatory drugs and prostate cancer: a systematic review of the literature and meta-analysis." Canadian Urological Association Journal 3, no. 4 (May 1, 2013): 323. http://dx.doi.org/10.5489/cuaj.1129.
Full textJradi, Mohamed Amine, Mohamed Dridi, Mourad Teyeb, Mokhtar Ould Sidi Mohamed, Ramzi Khiary, Samir Ghozzi, and Nawfel Ben Rais. "The 20-core prostate biopsy as an initial strategy: impact on the detection of prostatic cancer." Canadian Urological Association Journal 4, no. 2 (April 16, 2013): 100. http://dx.doi.org/10.5489/cuaj.800.
Full textMcCormack, Gavin R., Jason Cabaj, Heather Orpana, Ryan Lukic, Anita Blackstaffe, Suzanne Goopy, Brent Hagel, et al. "Examen de la portée sur les associations entre aménagement urbain et santé : les données quantitatives canadiennes." Promotion de la santé et prévention des maladies chroniques au Canada 39, no. 5 (May 2019): 206–20. http://dx.doi.org/10.24095/hpcdp.39.5.03f.
Full textKu, Jennifer, Murray Krahn, John Trachtenberg, Michael Nesbitt, Robin Kalnin, Gina Lockwood, and Shabbir M. H. Alibhai. "Changes in health utilities and health-related quality of life over 12 months following radical prostatectomy." Canadian Urological Association Journal 3, no. 6 (May 1, 2013): 445. http://dx.doi.org/10.5489/cuaj.1171.
Full textDissertations / Theses on the topic "Prostate – Cancer – Modèles animaux"
Larouche, Olivier. "Clonage et caractérisation des uridine diphospho-glucuronosyltransferases (UGT) effectuant la glucuronidation des hormones stéroïdiennes chez la souris." Master's thesis, Université Laval, 2009. http://hdl.handle.net/20.500.11794/20935.
Full textGevariya, Nikunj. "Effets des acides gras oméga-3 sur le cancer de la prostate." Doctoral thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/34012.
Full textProstate cancer (PCa) is the most frequently diagnosed cancer in Canadian men with 21,300 new cases and is the third-largest cause of cancer mortality with 4100 deaths in 2017. Epidemiological studies have shown that populations with a diet rich in omega (ω)-3 fatty acids(FA) (e.g. coastal Asian populations) have a low incidence of PCa while populations in Western countries with a diet rich in ω6 FA have higher (almost 60 times) incidence of PCa. Dietary fats influence many biological processes including inflammation which is associated with PCa development and progression. Notably, long-chain ω6 FA (LCω6) have pro-inflammatory properties and could contribute to PCa progression. On the opposite, LCω3 such as eicosapentaenoic acid (EPA) and docosahexanenoic acid (DHA) have anti-inflammatory properties and could inhibit PCa progression. I hypothesized that dietary ω3 FA are beneficial against PCa growth and progression mainly via their anti-inflammatory properties. Using the TRAMP-C2 mouse model of PCa, I found that an ω3 FA-enriched diet reduced PCa growth compared to an ω6 FA-enriched diet in both androgen-deprived and non-deprived mice by inducing local antitumor Th1-, Th2-and eosinophil-related immune response. In the quest to further study the effects of individual ω3 FA subtype, I found that dietary supplementation with monoacylglyceride (MAG)-EPA reduced tumor growth by inhibiting vascular endothelial growth factor (VEGF)and vascular endothelial growth factor receptor-2gene (VEGFR2)expression as well as reducing the size of blood vessels in TRAMP-C2 tumors. I also observed that higher level of EPA reduced the size of blood vessels in prostate in a clinical trial testing MAG-EPA supplementation on PCa patients undergoing radical prostatectomy. Finally, I analyzed the effects of an ω3 FA-rich diet intervention versus treatment with a 5α- reductase inhibitor (5ARI) on low-risk PCa patients under active surveillance. I found that 6 months of ω3 FA-rich diet intervention resulted in a reduction of plasma level of pro-inflammatory and pro-angiogenesis cytokines as well as Th2 and Th17 immune response-related cytokines. In order to assess the effects of these interventions on the prostate tissue, I used cytokines assay and mass spectrometry (MS ) assay to analyze proteins in clarified urine obtained after digital rectal examination (DRE urine). I did not succeed at identifying significant variation in protein levels following the interventions in this sample type but I found that crude (non-clarified) DRE urine contained twice the amount of proteins compared to clarified urine, suggesting that this type of sample should be used for further analysis. Overall, my results confirmed the importance of ω3 FA for prevention of PCa progression and provide the rationale to further investigate their effects on immune response, tumor vasculature and tumor progression in PCa patients.
Fritz, Vanessa. "Approche thérapeutique des métastases ostéolytiques du cancer prostatique par utilisation des cellules souches mésenchymateuses génétiquement modifiées." Montpellier 1, 2007. http://www.theses.fr/2007MON1T011.
Full textSemenchenko, Kostyantyn. "Development of tumour therapies : from target validation of TTLL12 to tests of a small molecule XRP44X in pre-clinical models of cancer." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAJ107.
Full textTubulin posttranslational modifications are an attractive target for cancer therapy. TTLL12 isinvolved in tubulin detyrosination, histone H4K20 trimethylation and prostate cancer. The thesis addresses the effects of TTLL12 overexpression on these tubulin and histone modifications at different stages of the cell cycle and on sensitivity to microtubule-targeting agents. The results show that TTLL12 over expression affects tubulin detyrosination and H4K20 trimethylation independently of cell cycle phase and reduces cell sensitivity totaxanes.XRP44X is a novel inhibitor of Ras-ERK1/2-Elk3 signalling and tubulin-binding agent. Itsantitumorigenic properties had been shown in vitro and in initial in vivo studies. The thesis project was a continuation of pre-clinical studies on XRP44X in mouse prostate cancer models. The results show that XRP44X is an effective inhibitor of tumorigenesis and metastasis in prostate cancer, which may be due to its effect on Elk3
El, Bizri Rana. "Characterization of Pten and Trp53 deficient prostatic tumors in mice." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAJ097.
Full textProstate cancer (PCa) is a leading cause of male cancer death worldwide. While most locally PCa are curable, metastatic tumors initially respond to androgen deprivation therapy but ultimately relapse to castration-resistant prostate cancer (CRPC), which is a lethal disease. Since the tumor suppressor genes PTEN and p53 are frequently mutated in metastatic and CRPC, the host laboratory generated mouse models in which Pten and/or Trp53 are selectively ablated in adult prostatic epithelial cells (PECs) in order to unravel the key events leading to prostate cancer progression. Our study reveals that Pten ablation stimulates PECs proliferation forming prostatic intraepithelial neoplasia (PIN) within a few months. This hyper-proliferation induces replicative stress and a DNA damage response (DDR), which in turn leads to a progressive growth arrest with characteristics of cell senescence. As senescent cells secrete a large number of cytokines and chemokines, and can accumulate other mutations, they might contribute to tumor progression. Importantly, in the absence of Trp53, most Pten-null PECs develop PINs that enter senescence. However partial loss of PECs identity is detected as we show enhanced stemness and focal neuroendocrine differentiation of luminal Pten-null PECs. In some cases, adenocarcinoma and sarcomatoid tumors are formed, and more than one-third of the latter develop metastases. Strikingly, we also show formation of a castrate-resistant cell entity of both Pten and Pten/Trp53-null PECs sharing luminal and basal markers. Taken together, as current treaments lead to side effects and resistance, the development of therapeutic strategies to eliminate senescent cells/and or PECs expressing luminal and basal/stem progenitor in pre- cancerous lesions represents promising option for prostate cancer treatment
L'Espérance, Sylvain. "Développement de nouveaux modèles cellulaires et animaux de cancer ovarien." Mémoire, Université de Sherbrooke, 2005. http://savoirs.usherbrooke.ca/handle/11143/3391.
Full textOspina, Arango Juan David. "Predictive models for side effects following radiotherapy for prostate cancer." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S046/document.
Full textExternal beam radiotherapy (EBRT) is one of the cornerstones of prostate cancer treatment. The objectives of radiotherapy are, firstly, to deliver a high dose of radiation to the tumor (prostate and seminal vesicles) in order to achieve a maximal local control and, secondly, to spare the neighboring organs (mainly the rectum and the bladder) to avoid normal tissue complications. Normal tissue complication probability (NTCP) models are then needed to assess the feasibility of the treatment and inform the patient about the risk of side effects, to derive dose-Volume constraints and to compare different treatments. In the context of EBRT, the objectives of this thesis were to find predictors of bladder and rectal complications following treatment; to develop new NTCP models that allow for the integration of both dosimetric and patient parameters; to compare the predictive capabilities of these new models to the classic NTCP models and to develop new methodologies to identify dose patterns correlated to normal complications following EBRT for prostate cancer treatment. A large cohort of patient treated by conformal EBRT for prostate caner under several prospective French clinical trials was used for the study. In a first step, the incidence of the main genitourinary and gastrointestinal symptoms have been described. With another classical approach, namely logistic regression, some predictors of genitourinary and gastrointestinal complications were identified. The logistic regression models were then graphically represented to obtain nomograms, a graphical tool that enables clinicians to rapidly assess the complication risks associated with a treatment and to inform patients. This information can be used by patients and clinicians to select a treatment among several options (e.g. EBRT or radical prostatectomy). In a second step, we proposed the use of random forest, a machine-Learning technique, to predict the risk of complications following EBRT for prostate cancer. The superiority of the random forest NTCP, assessed by the area under the curve (AUC) of the receiving operative characteristic (ROC) curve, was established. In a third step, the 3D dose distribution was studied. A 2D population value decomposition (PVD) technique was extended to a tensorial framework to be applied on 3D volume image analysis. Using this tensorial PVD, a population analysis was carried out to find a pattern of dose possibly correlated to a normal tissue complication following EBRT. Also in the context of 3D image population analysis, a spatio-Temporal nonparametric mixed-Effects model was developed. This model was applied to find an anatomical region where the dose could be correlated to a normal tissue complication following EBRT
Grosse, Laurent. "Étude de la régulation de la glucuronidation des androgènes par UGT2B15 et UGT2B17 dans la prostate et dans des modèles animaux." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/30096/30096.pdf.
Full textDisregulation of androgen metabolism leads to serious diseases such as prostate cancer (PCa). Androgen déprivation (ADTh) is a common approach to treat PCa. Although most patients initialy respond to the treatment, up to 80% will develop resistant tumors (CRPC). New therapeutic approaches are therefore urgently needed. Our work focused is glucuronidation by the human UGT2B15 and UGT2B17 enzymes, a major inactivation pathway for androgens. Two parallel strategies were devepopped. First, we analyzed how UGT2B15 and UGT2B17 expression regulated in vitro and in vivo, in PCa from patient treated or not with ADTh. Second, we have engineered mouse strain expressing the UGT2B15 human gene. These animals were used to study the role of UGT2B15 in vivo, in particularly how this enzyme affects androgen biodisponibility. Before establishing the transgenic models, we investigated the Ugt2b enzyme implicated in androgen glucuronidation in mice. We observed that UGT2B15, and not UGT2B17, is down-regulated in advanced and metastatic PCa and CRPC, while using ADTh up-regulated the 2 proteins in vivo. In vitro, this increase contributed to the anti-proliferative effect of ADTh but in vivo, UGT2B15 is stably induced while UGT2B17 was only transiently up-regulated. In mice, androgen glucuronidation is mainly observed with hepatic and renal tissues, while Ugt2b peripheral expression is almost undetectable. Moreover this Ugt2b expression is lower in female and controlled by androgen. In our transgenic mouse, human UGT2B15 is also expressed in male liver only, and likewise controlled by androgen. Its expression significantly increases LH plasma concentration, while castrated transgenic mice treated with DHT display altered body and muscle weight. In conclusion we demonstrated that UGT2B15 is a pharmacological target for PCa treatment. With UGT2B17, UGT2B15 contributes to improve ADTh but the 2 enzymes have a differential expression. So, UGT2B17 is a potential biomarker for the emergence of ADTh resistance. The important UGT2B15 function is demonstrated using our transgenic mice: a liver limited expression is enough to alter the endocrine regulation with a hepatic limited expression. Also, our mouse constitutes a model to study in vivo the UGT2B15 regulation and function, in example to identify a UGT2B15 inductor to improve ADTh.
Descamps, Olivier. "Sress oxydant et vieillissement : aspects mitochondriaux et stratégies nutritionnelles anti-cancer et anti-vieillissement chez la souris OF1." Université Joseph Fourier (Grenoble), 2004. http://www.theses.fr/2004GRE18008.
Full textOur thesis aimed to establish new perspectives about the link between the antioxidant status, the aging process and the cancer process, considering essentially the role played by mitochondria. A major part of our studies was devoted to evaluate nutritional strategies to prevent aging and cancer. Our objectives were to study the effects of calorie restriction or alternate feeding, selenium supplementation, that all proved striking efficacy, in contrast with the lack of effect of DHEA sulfate supplementation. A number of correlation studies between aging, longevity and various parameters of oxidative stress were evaluated: link between memory and antioxidant enzymes in brain and hippocampus, link between longevity and urinary level of 8-oxo-dGuo, the later appearing as highly significant. We concluded the thesis by the analysis of the correlation between the antioxidative defense system and the insect longevity
Zabaiou, Nada. "Etude du stress oxydatif dans l’hypertrophie bénigne de la prostate et mise en évidence de l’effet de la propolis contre le cancer de la prostate in vivo sur un modèle animal de rat Wistar et ex vivo sur les cellules LNCaP du cancer de la prostate hormono-sensibles." Thesis, Université Clermont Auvergne (2017-2020), 2017. http://www.theses.fr/2017CLFAC102/document.
Full textBPH and prostate cancer are the two most prevalent prostatic diseases in elders. Understanding their etiology and pathogenesis is necessary in order to prevent them and to enhance both research and development of new therapeutic agents. Our goal is to study the implication of oxidative stress in BPH and to study the effect of propolis extract on prostate cancer in vivo in Wistar rats and in vitro on LNCaP cells. We have shown that: 1) Oxidative stress acts as a promoter in the development of BPH, 2) Benzo(a)pyrene administered to Wistar rats induces the development of prostate cancer, 3) Propolis induces a decrease in proliferation, Ki-67 expression (-49%) and AhR expression in the Wistar rat, (4) Propolis has an antiproliferative effect on LNCaP cells via AR signaling blockade