Academic literature on the topic 'Mesotelioma maligno'
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Journal articles on the topic "Mesotelioma maligno"
Peña Barturen, C., A. Valverde Martínez, J. Varela Recio, D. Espinosa Jiménez, and JM Pacheco García. "Giant primary peritoneal mesothelioma in the diaphragm." Cirugía Andaluza 32, no. 2 (May 7, 2021): 174–77. http://dx.doi.org/10.37351/2021322.13.
Full textMotta, Alexandre Bottrel, Germânia Pinheiro, Leila Antonângelo, Edwin Roger Parra, Maria Margarida Monteiro, José Carlos das Neves Pereira, Tereza Takagaki, Mario Terra Filho, Sandro Martins, and Vera Luiza Capelozzi. "Marcadores morfológicos de prognóstico no mesotelioma maligno: um estudo de 58 casos." Jornal Brasileiro de Pneumologia 32, no. 4 (August 2006): 322–32. http://dx.doi.org/10.1590/s1806-37132006000400011.
Full textSerrano, Adolfo, Alejandra Bravo-Balado, Diana Cañón, Daniela Robledo, and Liliana Fonseca. "Mesotelioma de túnica vaginal en paciente con hidrocele rápidamente progresivo." Revista Urología Colombiana / Colombian Urology Journal 28, no. 01 (May 11, 2018): 066–69. http://dx.doi.org/10.1055/s-0038-1648241.
Full textPalma, Maynor, Juan De-León, and José Arreola. "Mesotelioma Pleural Maligno." Revista médica (Colegio de Médicos y Cirujanos de Guatemala) 160, no. 1 (April 16, 2021): 94–96. http://dx.doi.org/10.36109/rmg.v160i1.245.
Full textGarcía Atienza, Eva María, Carmen Llanos Val Jiménez, Soledad Navarro Ruiz, and Jesús López-Torres Hidalgo. "Mesotelioma pleural maligno." Medicina Paliativa 24, no. 1 (January 2017): 47–50. http://dx.doi.org/10.1016/j.medipa.2014.11.001.
Full textClavero, José Miguel. "Detección precoz del mesotelioma maligno." Revista chilena de enfermedades respiratorias 29, no. 1 (March 2013): 55. http://dx.doi.org/10.4067/s0717-73482013000100011.
Full textMarta, Maria João, João Santos Silva, Anabela Oliveira, and J. A. Saavedra. "Mesotelioma maligno – um desafio diagnóstico." Revista Portuguesa de Pneumologia 9, no. 5 (September 2003): 411–25. http://dx.doi.org/10.1016/s0873-2159(15)30688-7.
Full textvan Hezik, E. J. "Mesotelioma pleural maligno, otras opciones." Archivos de Bronconeumología 41, no. 12 (December 2005): 703. http://dx.doi.org/10.1016/s0300-2896(05)70727-4.
Full textStradella, A., E. Conde-Gallego, C. A. Escalera-Almendros, and I. Durán-Martínez. "Mesotelioma maligno de túnica vaginal." Actas Urológicas Españolas 38, no. 1 (January 2014): 68–69. http://dx.doi.org/10.1016/j.acuro.2013.02.017.
Full textUría González-Tova, J., C. Escalera Almendros, J. Sánchez Macias, J. Areal Calama, F. Sanfeliú Cortes, L. Ibarz Servio, and J. Mª Saladie Roig. "Mesotelioma maligno de túnica vaginal." Actas Urológicas Españolas 24, no. 9 (January 2000): 757–60. http://dx.doi.org/10.1016/s0210-4806(00)72540-x.
Full textDissertations / Theses on the topic "Mesotelioma maligno"
Souza, André de Oliveira. "Tratamento quimioterápico do mesotelioma pleural maligno: uma revisão sistemática." reponame:Repositório Institucional da FIOCRUZ, 2015. https://www.arca.fiocruz.br/handle/icict/13923.
Full textContexto - O mesotelioma pleural maligno é um tipo de câncer raro, agressivo e com uma expectativa de aumento na incidência até 2030. As melhores formas de diagnosticar,estadiar e tratar essa neoplasia continuam em debate. Objetivos - Estabelecer a evidência de eficácia e segurança dos diferentes esquemas quimioterápicos disponíveis para o tratamento do mesotelioma pleural maligno.Fontes de Dados - As bases bibliográficas utilizadas para a busca de artigos indexados foram Cochrane Controlled Trials Register, Lilacs, Medline (via Pubmed), Scopus e Webof Science. Além disso, foram buscados estudos na literatura cinzenta.Critérios de Elegibilidade Participantes: pacientes com mesotelioma pleural maligno virgens de tratamento quimioterápico; Intervenção: tratamento quimioterápico; Controle:tratamento quimioterápico ou controle ativo de sintomas; Desfechos: Tempo de sobrevida,tempo livre de progressão, resposta tumoral e toxicidade; Estudos: ensaios clínicos randomizados de fase II ou III.Resultados - Um total de nove estudos envolvendo treze esquemas terapêuticos preencheram os critérios para inclusão nesta revisão. Em relação à eficácia, o único esquema quimioterápico que se apresenta superior ao seu comparador com significância estatística nos três desfechos é cisplatina mais pemetrexede. Os outros esquemas que demonstraram superioridade, mas sem a significância estatística foram: cisplatina mais raltitrexede, vinorelbina e carboplatina mais pemetrexede. Em relação à toxicidade, cisplatinamais pemetrexede, cisplatina mais raltitrexede se destacaram negativamente.
Conclusões O uso da combinação derivado de platina mais antifolato como opção de primeira escolha no tratamento quimioterápico do mesotelioma pleural maligno está de acordo com as diretrizes terapêuticas e outras revisões sistemáticas publicadas. Cisplatina epemetrexede têm a preferência sobre carboplatina e raltitrexede. Avaliações econômicas e estudos clínicos realizados no Brasil são necessários para embasar a decisão de incorporação dos antifolatos no tratamento rotineiro dessa neoplasia.
Background - Malignant pleural mesothelioma is a rare and aggressive cancer with anexpected increase in the incidence by 2030. The best ways to diagnose, staging and treat this disease still under discussion.Objectives - To establish the evidence of efficacy and safety of different chemotherapy regimens available for the treatment of malignant pleural mesothelioma. Data Sources - The bibliographic databases used for the search of indexed articles were Cochrane Controlled Trials Register, Lilacs, Medline (via Pubmed), Scopus and Web of Science. In addition, studies were sought in the gray literature. Study Eligibility Criteria - Participants: chemotherapy naïve patients with malignant pleural mesothelioma; Intervention: chemotherapy; Control: chemotherapy or active symptom control; Outcomes: survival time, progression-free time, tumor response and toxicity; Studies: phase II or III randomized clinical trials. Data Synthesis - A total of nine studies involving thirteen regimens met the criteria for inclusion in this review. Regarding efficacy, the only chemotherapy regimen that appears superior to their control group with statistical significance in the three outcomes is cisplatinplus pemetrexed. The other schemes that have shown superiority but without statistical significance were: cisplatin plus raltitrexed, vinorelbine and carboplatin plus pemetrexed. Regarding toxicity, cisplatin plus pemetrexed, cisplatin plus raltitrexed stood out negatively. Conclusions - The use of platinum more antifolate combination as first line chemotherapy ofmalignant pleural mesothelioma is in accordance with therapeutic guidelines and other systematic reviews published. Cisplatin and pemetrexed have preference over carboplatinand raltitrexed. Economic evaluations and a clinical study in Brazil are required to give foundation incorporating decision of antifolates in the routine treatment of this cancer. (AU)^ien
Ghiribelli, Claudia <1971>. "La terapia multimodale nel trattamento del mesotelioma pleurico maligno." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/582/1/ghiribelli.pdf.
Full textGhiribelli, Claudia <1971>. "La terapia multimodale nel trattamento del mesotelioma pleurico maligno." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/582/.
Full textBaran, Fátima Denise Padilha. "O itinerário terapêutico revelado pelo familiar da pessoa com mesotelioma maligno : estudo de casos múltiplos." reponame:Repositório Institucional da UFPR, 2016. http://hdl.handle.net/1884/45767.
Full textDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências da Saúde, Programa de Pós-Graduação Mestrado Profissional em Enfermagem. Defesa: Curitiba, 13/12/2016
Inclui referências : f.148-173
Área de concentração: Prática profissional de enfermagem
Resumo: Conhecer o itinerário terapêutico revelado pelo familiar da pessoa com mesotelioma maligno. Trata-se de uma pesquisa qualitativa, de natureza descritiva, exploratória, utilizando o método de estudos de casos múltiplos. Aprovada pelo Comitê de Ética em Pesquisa em Seres Humanos, parecer favorável nº 677.015. Definiu-se a proposição do estudo com a questão norteadora: como ocorreu o itinerário terapêutico da pessoa com mesotelioma maligno revelado pelo familiar? O referencial teórico adotado foi o Sistema de Cuidado à Saúde de Arthur Kleinman, constituído por três subsistemas: o profissional, popular e folclórico. Participaram do estudo seis casos de pessoas que adoeceram e foram a óbito por mesotelioma, assistidas em uma Instituição de Saúde referência no tratamento do câncer e seus familiares, no estado do Paraná. A coleta de dados ocorreu de janeiro a junho de 2016.Os dados foram coletados do prontuário por meio de formulário estruturado, sobre o perfil sócio demográfico e clínico das pessoas com mesotelioma e da narrativa do familiar que acompanhou o itinerário terapêutico percorrido por essa pessoa, através da técnica de entrevista. Para análise dos dados documentais utilizou-se a análise comparativa proposta por Robert Yin e para as narrativas dos familiares a análise de conteúdo de Lawrence Bardin. Dos seis casos descritos nas unidades de análise, quatro eram do sexo masculino e dois do sexo feminino; quatro com diagnóstico de mesotelioma pleural, e dois com mesotelioma peritoneal. As idades variaram entre 44 a 69 anos. Os principais sintomas identificados foram: febre, dor nas costas, dor no estomago, emagrecimento e derrame pleural. A terapêutica instituída foi: quimioterapia e radioterapia. A exposição ao amianto confirmado em um caso. A sobrevida dos primeiros sintomas ao óbito ocorreu de cinco meses a oito anos; e, do diagnóstico de mesotelioma ao óbito variou de quatro meses a cinco anos. Da análise das narrativas dos familiares emergiram sete categorias: reconhecimento do adoecer; cuidados populares e a tentativa de escapar do adoecimento; subsistema popular direciona ao profissional; subsistema profissional: desvendar o mistério da doença; família: supremacia do cuidado; religião: esperança e alento; e, o adoecimento por mesotelioma pela lente do familiar. O inicio do itinerário terapêutico foi marcado pela identificação dos sintomas, com as primeiras práticas populares adotadas. A familia foi a unidade central do cuidado. O subsistema profissional carregou o desafio de desvendar o mistério da doença, com a dificuldade de um diagnóstico acertado. A religião foi a fonte de esperança para as pessoas durante o processo de adoecimento, e a familia carrega o fardo de enfrentar as dificuldades da agressidade da doença, do tratamento até optar por interromper a terapêutica. Os cuidados à saúde adotadas são representadas pela forte ação dos conceitos sócio culturais de cada pessoa. Palavras-chave: Mesotelioma; Atitude frente à saúde; Pacientes; Cuidados de saúde; Família e Enfermagem
Abstract: Knowing the therapeutic itinerary revealed by the relative of the person with malignant mesothelioma. It is a qualitative research, of descriptive nature, exploratory, using the method of multiple case studies. Approved by the Ethics Committee on Research on Human Beings, favorable opinion nº 677.015. The study proposition was defined with the guiding question: how did ocurr the therapeutic itinerary of the person with malignant mesothelioma revealed by the relative? The theoretical reference chosen was the Arthur Kleinman Health Care System, made up of three subsystems: the professional, popular and folkloric. Participated in the study six cases of people who fell ill and died due to mesothelioma, attended at a Health Care Institution which is a reference in the treatment of cancer and their relatives, in the state of Paraná. The data were collected from January to June 2016. The data were collected from the medical record by means of a structured form, about the socio demographic and clinical profile of people with mesothelioma and the narrative of the family member who accompanied the therapeutic itinerary lived by this person through the technique of interview. For the analysis of the documentary data was used the comparative analysis proposed by Robert Yin and for the narratives of the relatives the content analysis of Lawrence Bardin. Of the six cases described in the units of analysis, four were male and two female; Four with diagnosis of pleural mesothelioma and two with peritoneal mesothelioma. The ages ranged from 44 to 69 years. The main symptoms identified were: fever, back pain, stomach pain, weight loss and pleural effusion. The therapy instituted was: chemotherapy and radiotherapy. Exposure to asbestos confirmed in one case. The survival of the first symptoms at death occurred from five months to eight years; and from the diagnosis of mesothelioma to death varied from four months to five years. From the analysis of the family narratives emerged seven categories: recognition of the illness; popular care and the attempt to escape from illness; popular subsystem directed to the professional; professional subsystem: unveil the mystery of the disease; family: care supremacy; religion: hope and encouragement; and mesothelioma sickness by the relative view. The beginning of the therapeutic itinerary was marked by the identification of the symptoms with the first popular practices adopted. The family was the central care unit. The professional subsystem carried the challenge of unraveling the mystery of the disease with the difficulty of a correct diagnosis. The religion was the source of hope for people during the process of becoming ill and the family carries the burden of facing the difficulties of the aggression of the disease, from the treatment until to choose stopping the treatment. The health care adopted is represented by the strong action of the socio-cultural concepts of each person. Keywords: Mesothelioma; Attitude towards health; patient; health care; Family;Nursing
Cedrés, Pérez Susana María. "Análisis de la expresión de PD-L1 en una serie de pacientes con mesotelioma pleural maligno." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/285157.
Full textIntroduction Malignant pleural mesothelioma (MPM) is a rare tumor with poor prognosis and low response to treatment, with a median survival of 12 months. Asbestos has been linked as one of the main causes of the disease but recently genetics factors has been suggested play a role in MPM. Several studies have shown that MPM is an immunologic tumor that induces immune recognition, immune cells infiltration and death mediated by immunity. PD1-PD-L1 pathway is responsible to control cell death, tissue damage and to keep peripheral tolerance. Recent studies analyzing this pathway in lung cancer, renal cancer and melanoma and other cancer have shown that is activated in more than 50% of patients. We analyzed the role of PD-L1 in MPM. Material and methods We studied 119 patients diagnosed of MPM between 2000 and 2014 with archival material in pathologic department of Vall d´Hebron University Hospital and 12 October University Hospital. The clinical information was recorded and we selected cases with at least 3 unstained slides for the immunohistoquemical analysis. We use the antibody E1L3N™ for the PD-L1 staining and the result was considered positive if more than 1% of tumor cells were stained in any localization (membrane, cytoplasm and inflammatory infiltrate). Kaplan Meier curves were used for survival analysis. Results Patients characteristics: median age 69 years (range 42-90), the majority of patients were males (71.4%), smokers (51%), had previous asbestos exposure (44.5%), epithelial subtype (65%) and had ECOG 1 64.8% of patients. Archival samples with sufficient quality to perform the immunhistoquemical analysis were available in 77 patients and we found PD-L1 positive in 16 patients (20.7%). In relation to the intensity of the staining 9 patients had low intensity, 4 patients moderate and 3 patients strong intensity. The overall survival of all the patients was 9.8 months. Patients with epitheial histology had significant better prognosis (16.8 months versus 5.2 months biphasic and 0.8 months sarcomatoid, p<0.001). When we analyzed patients evaluated for PD-L1 we found that the expression is more frequent in no epithelial tumor (p=0.03). In our series PD-L1 is an unfavorable prognostic factor .PD-L1 positive patients had median survival of 4.7 months versus 16.3 months PD-L1 negative patients (p=0.012). In the multivariate analysis the unfavorable prognostic of PD-L1 was independent of the histological subtype (p=0.021). Conclusions In our series we found that PD-L1 is expressed in 20% of MPM patients assessed by inmunhistochemistry. PD-L1 is an unfavorable prognostic factor independent of the histology
Nocchi, Linda. "Regolazione epigenetica della Trombomodulina e del Tumor Necrosis Factor mediata da PARP-1 nel mesotelioma maligno." Doctoral thesis, Università Politecnica delle Marche, 2011. http://hdl.handle.net/11566/241885.
Full textCancer exerts a deep impact on haemostatic system, leading to a hypercoagulability state. Among solid tumors, asbestos-exposure associated cancer, malignant mesothelioma (MM), is one of the most complicated by thromboembolic episodes. Thrombosis pathogenesis is triggered by release of pro-coagulant and inflammatory factors, from cancer cells. Cytokines are involved in maintenance of hypercoagulability in cancer cells; Tumor Necrosis Factor (TNF-α) is the cytokine more involved in haemostatic system, down-regulating anti-coagulant activity; among its functions, TNF-α inhibits Thrombomodulin expression. Thrombomodulin (TM) is a natural anticoagulant and it is involved in various pathological processes including thrombosis, inflammation and cancer. Heterogeneous expression of TM was observed in cancers; low or no TM expression in cancer cells is associated with a poor prognosis. In this study, we analysed TM and TNF-α expression in biopsies of MM then compared with normal mesothelium tissues (NM). The involvement of DNA methylation in TM and TNF-α down regulation was investigated. To evaluate the role of PARP-1 in the epigenetic modifications, mesothelial cells (Met-5A) and MM cells (H28) are silenced for PARP-1 and the DNA methylation/acethylation-associated TM and TNF-α expression evaluated, by treatments with demethylating agent (5’-Aza-dC) and deacethylase inhibitor Trichostatin (TSA). A critical low TM and TNF-α expression at mRNA and protein level is found in MM biopsies and there is a significant relationship between hypermethylated status of their promoter CG island region and the loss of expression of both genes. Silenced TM observed in MM cells is restored by demethylating agent Aza-dC treatment and partially by deacethylase inhibitor Trichostatin TSA, while the epigenetic agents don’t affect the TM expression in Met-5A cells. Silenced TNF-α observed in MM cells is restored by both epigenetic agents Aza-dC and TSA, thus DNA methylation but also acethylation could be involved in silenced TNF-α. Silencing PARP-1 results in a marked downregulation of TM expression in Met-5A cells while restores TM levels in MM cells. Knockdown PARP-1 induces TM promoter methylation in Met-5A cells and demethylation in MM cells. Whereas, silencing PARP-1 results in a marked downregulation of TNF-α expression in both Met-5A and MM cells. Epigenetic regulation PARP-1-mediated is responsible for reduced TNF-α expression in MM cells, but also DNA acethylation has to be investigated.
Strafella, Elisabetta. "MicroRNA come biomarcatori nella diagnosi e nella sorveglianza sanitaria delle malattie professionali: caso del mesotelioma maligno." Doctoral thesis, Università Politecnica delle Marche, 2010. http://hdl.handle.net/11566/242257.
Full textThe monitoring of the health of workers at risk is aimed at formulating a fitness certificate specific to their occupational task. Clinical examination is first performed in start-up and then subsequent periodic medical examinations are carry out according to risk. Therefore, the use of biomarkers that could determine the early stages of the disease may improve the assessment of risk to health and contribute to effective policies for preventing diseases caused by environmental and occupational exposures. Malignat pleural Mesothelioma (MPM) is well known to be linked to asbestos exposure at the workplace. Improved detection methods for diagnosis of this type of neoplastic disease are essential for an early and reliable detection and treatment. Thus, focus has been on finding tumour markers used for non-invasive detection of MPM. There is emerging evidence of abnormal levels of microRNAs (miRNAs) in tumours. While some miRNAs commonly exhibit altered amounts across tumours, often, different tumour types produce unique patterns of miRNAs, related to their tissue of origin. In this study, miRNA isolated from MM fresh-frozen biopsies was profiled for the expression of 88 miRNAs involved in cancer. MPM samples and normal tissues were analysed by quantitative reverse transcription-PCR miRNA array. A marked difference in miRNA expression pattern was observed between normal tissue and tumours. Most of miRNA were down-regulated in tumours, and among them 8 miRNA were significantly under expressed. Their down-regulation was more evident in advanced tumours. Three of these miRNAs (miRNA-335, miRNA-126, miRNA-32) were validated in the larger sample series, and only miR-126 showed significant differential expression, distinguish MPM samples from normal tissues and tumour staging. Furthermore, the performance of the miRNA-126 as biomarkers was evaluated in serum samples of asbestos-exposed subjects, MPM patients and compared with age-matched healthy subjects. The miRNA-126 significantly distinguish asbestos-exposed subjects and MPM patients from age-matched controls. We first identify a specific miRNA profile for MPM and we propose miRNA-126 as potential biomarker of exposure and for early diagnosis and prognosis of MPM.
MICOLUCCI, LUIGINA. "Ruolo deI microRNA nella patogenesi del mesotelioma maligno: un approccio basato sulle “evidenze scientifiche” e sull’analisi computazionale." Doctoral thesis, Università Politecnica delle Marche, 2018. http://hdl.handle.net/11566/245354.
Full textMicroRNAs (miRNAs) are endogenous, non-coding, small RNAs able to modulate gene expression at post-transcriptional level with a fundamental role in multiple cellular processes and regulatory pathways. Aberrantly expressed miRNAs have been correlated to the pathogenesis of numerous cancers including Malignant mesothelioma (MM). MM is an asbestos-related lethal cancer, poorly responsive to current treatments. In this study, a systematic review and a qualitative meta-analysis has been performed to identify miRNA with potential clinical relevance as early biomarkers. Notably, a gorup of high-confidence MM-associated miRNAs has been identified and called mesomiRs, namely circulating miR-126-3p, miR-103a-3p, and miR-625-3p, and tissue miR-16-5p, miR-126-3p, miR-143-3p, miR-145-5p, miR-192-5p, miR-193a-3p, miR-200b-3p, miR-203a-3p, and miR-652-3p. Subsequently, they were then subjected to bioinformatic analysis to predict their role in the disruption of key pathways involved in the pathogenesis of MM, and functional investigation confirmed their early diagnostic value. In a second step of analysis, this study focused on the establishment of an experimental method for determining differentially expressed miRNAs between MM samples and controls. MiR-214 has been highlighted as the most dowregulated miRNA in MM specimens in comparison to the control group. Finally, the combination of in silico target prediction analysis and empirical target data, has allowed the identification of EZH2, among others, as a key target gene involved in malignant transformation. These findings provide new evidence-based knowledge for cancer drug discovery. Further studies are necessary to investigate the role of miRNA-target interactions in the disruption of key signaling pathways identified. Here we demonstrated that a well settled data mining approach and bioinformatic analysis might disclose the most reliable microRNA-gene target interactions having key role in the pathogenesis of MM.
Rizzello, Emanuele <1988>. "Radiazioni ionizzanti come fattore di rischio per l'insorgenza del mesotelioma maligno: revisione della letteratura scientifica e analisi dei registri "Surveillance, Epidemiology, and End Results" (SEER)." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9725/1/Tesi%20PhD%20Emanuele%20Rizzello.pdf.
Full textThe aim of this research work was to study the risk of developing mesothelioma in subjects exposed to ionizing radiation. This thesis consists of a scientific literature review and an analysis of the SEER (Surveillance, Epidemiology and Final Results) database. The review was designed to investigate the relationship between exposure to ionizing radiation (external beam radiation therapy, EBRT, or occupational exposure) and the onset of mesothelioma. After screening 4104 items, the research led to a qualitative analysis of 19 studies in the literature; a meta-analysis was also carried out on 16 papers, that respected the inclusion criteria and reported all data we needed. A general risk estimate was found to be equal to 1.87 with 95% CI: 1.44-2.29. The analysis of the SEER database focused on the study of the risk to develop peritoneal mesothelioma as a second malignancy in subjects with localized prostate cancer treated with radiotherapy. In the study period between 1973 and 2015, 38 peritoneal mesotheliomas (as second neoplasm) were identified: 17 among patients previously treated with radiotherapy. The Hazard Ratio (HR) for EBRT, relative to non-irradiated patients, was found to be 1.72, with a 95% (CI) of 0.90-3.29. From the data analysis of SEER registries and scientific literature review on both high dose (EBRT) and low and fractionated dose (occupational exposure) exposures, an increased risk of developing mesothelioma after ionizing radiation exposure was highlighted. The last chapter on this thesis work reports all the papers I published in the field of Occupational Medicine, completed during the PhD programme.
DOLDO, ELENA. "Placenta growth factor is a survival factor for human malignant mesothelioma cells." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2009. http://hdl.handle.net/2108/1154.
Full textPlacenta growth factor (PlGF) is a key regulator of pathological angiogenesis and its overexpression has been linked to neoplastic progression. To assess whether PlGF could have a role in malignant mesothelioma (MM), we analyzed the expression of PlGF, VEGF, and their cognate receptors (VEGF-R1 and VEGF-R2) and coreceptors (neuropilin-1 and neuropilin-2) in MM cell lines as well as in resected MM tissues, hyperplastic/reactive mesothelium and normal mesothelium. MM cell cultures expressed both ligands and the associated receptors to a variable extent and released different amounts of PlGF. As assessed by immunohistochemistry, PlGF expression was switched on in hyperplastic/reactive compared to normal mesothelium. Moreover, 74 and 94% of MM tissues overexpressed PlGF and VEGF-R1, respectively (p<0.05). Administration of recombinant PlGF-2 did not elicit a significant stimulation of MM cell growth, while it was associated with a transient phosphorylation of Akt, suggesting that PlGF-2 could activate downstream effectors of cytoprotective and anti-apototic signals via VEGF-R1 in MM cells. Indeed, the administration of an anti-PlGF antibody was found to cause a significant reduction of MM cell survival. In conclusion, our data demonstrate that, by acting as a survival factor, PlGF can play a role which goes beyond the stimulation of angiogenesis in MM. This evidence could help the rational design of new therapeutic interventions for this aggressive tumor.
Conference papers on the topic "Mesotelioma maligno"
Pio, Giovanni Pereira, Rafael Portella Almeida Grattapaglia, Luísa Correia de Aguiar, Antonia Christina Silva Rocha, Gabriella Santos de Oliveira, and Marcos Peres Bernardes. "MESOTELIOMA MALIGNO: CARACTERÍSTICAS CLÍNICAS, FATORES PROGNÓSTICOS E TRATAMENTO." In II Congresso Online Brasileiro de Medicina. Congresse.me, 2022. http://dx.doi.org/10.54265/vnex9497.
Full textLIMA, MANUELA CAVALCANTE COLING, ISABELA FRANCO FREIRE, BRUNA VIANA TELES REBOUÇAS, MILENA AGNES SANTOS BUENO, and RAFAEL LIMA VERDE OSTERNE. "ESTUDO EPIDEMIOLÓGICO DO MESOTELIOMA MALIGNO NO BRASIL: PANORAMA DOS ÚLTIMOS 5 ANOS." In Congresso Brasileiro On-line de Oncologia Clínico-laboratorial. Editora IME, 2022. http://dx.doi.org/10.51161/oncoclil/11979.
Full textNascimento, Aline, Renata Guerra, Maicon Falavigna, Verônica Colpani, Ivanir Martins de Oliveira, Antonio Ambrosio de Oliveira Neto, Fabiola Del Carlo Bernardi, et al. "A experiência na elaboração de recomendações para a diretriz diagnóstica de mesotelioma maligno de pleura." In PRIMEIRO CONGRESSO DA REBRATS. Galoa, 2019. http://dx.doi.org/10.17648/rebrats-2019-113731.
Full textOliveira, Viviane Marques de, Sarah Santana Correia, and Cristiano Ramos de Morais. "PRINCIPAIS NEOPLASIAS CUTÂNEAS EM CÃES: UMA REVISÃO DE LITERATURA." In I Congresso On-line Nacional de Clínica Veterinária de Pequenos Animais. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/2393.
Full textReports on the topic "Mesotelioma maligno"
Magnani, Corrado. La relación entre el mesotelioma maligno y la exposición al asbesto. Buenos Aires: siicsalud.com, January 2014. http://dx.doi.org/10.21840/siic/137511.
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