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Academic literature on the topic 'Carcinome hépatocellulaire – Recherche'
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Journal articles on the topic "Carcinome hépatocellulaire – Recherche"
Zucman-Rossi, J., B. Clément, M.-A. Buendia, H. Lerat, B. Van Beers, P. Bedossa, J. Taieb, and J. Rosenbaum. "Recherche fondamentale et translationnelle sur le carcinome hépatocellulaire en 2008 : avancées récentes et perspectives." Bulletin du Cancer 96, no. 1 (January 2009): 045–50. http://dx.doi.org/10.1684/bdc.2009.0792.
Full textSchwarz, Lilian, Michael Bubenheim, Johanna Zemour, Astrid Herrero, Fabrice Muscari, Christian Ducerf, Ahmet Ayav, Yves-Patrice Le Treut, and Michel Scotté. "Rupture hémorragique de carcinome hépatocellulaire : peut-on améliorer la prise en charge initiale ? Expérience multicentrique française – Enquête de la Fédération de recherche en chirurgie (French)." Journal de Chirurgie Viscérale 151, no. 4 (October 2014): A19. http://dx.doi.org/10.1016/s1878-786x(14)70140-8.
Full textKalla, Nabila, Souhila Aouidane, Faiza Megaache, and Soraya Tebbal. "Prevalence of hepatitis C virus infection in the general population of the city of Barika." Batna Journal of Medical Sciences (BJMS) 7, no. 1 (May 2, 2020): 27–30. http://dx.doi.org/10.48087/bjmsoa.2020.7107.
Full textSchwarz, Lilian, Alexi Laurent, Michael Bubenheim, Christian Le Toublon, Astrid Herrero, Emmanuel Boleslawski, Jean-Marc Regimbeau, Yves-Patrice Le Treut, and Michel Scotté. "Quel est le pronostic du carcinome hépatocellulaire rompu opéré en France ? Résultats d’une étude multicentrique – Enquête de la Fédération de recherche en chirurgie (French) et de l’Association française de chirurgie (AFC)." Journal de Chirurgie Viscérale 151, no. 4 (October 2014): A21. http://dx.doi.org/10.1016/s1878-786x(14)70145-7.
Full textDissertations / Theses on the topic "Carcinome hépatocellulaire – Recherche"
Avenaud, Philippe. "Hélicobacters et carcinomes hépatocelluaires : recherche de bactéries du genre Helicobacter dans le foie humain et de souris par méthode moléculaire." Bordeaux 2, 2003. http://www.theses.fr/2003BOR21067.
Full textQuélard, Delphine. "Le carcinome hépatocellulaire et le collagène XVIII : deux paradigmes pour la recherche de matricryptines hépatiques." Rennes 1, 2006. http://www.theses.fr/2006REN1S157.
Full textBluteau, Olivier. "Recherche de gènes suppresseurs de tumeurs impliqués dans la carcinogenèse hépatique humaine." Paris 7, 2002. http://www.theses.fr/2002PA077027.
Full textLe, Faouder Julie. "Recherche de biomarqueurs tissulaires de la cancerogenèse hépatique par imagerie Maldi." Paris 7, 2012. http://www.theses.fr/2012PA077002.
Full textHepatocellular carcinoma (HCC) represents the sixth most common cancer in the world, and the third most frequent oncological cause of death. Over 80% of HCC develop from cirrhosis, mainly related to viral etiology. The prognosis of HCC is mostly poor, because of its late detection at an advanced stage. Thus, new effective biomarkers are needed. MALDI imaging mass spectrometry (MALDI IMS) allows differential distribution visualization of potential markers within tissue. The aim of the present project was to investigate, using MALDI IMS, the proteome of HCC and to compare it with peritumoral cirrhosis so as to characterize new biomarkers of HCC. We found a set of proteins/peptides with a differential intensity level that most accurately delineated cancer from adjacent cirrhotic tissue. We generated a classification model enabling correct classification of most spectra present in cirrhosis or tumor areas from the independent validation group. The most discriminating marker (m/z 8,565) increased in HCC was characterized as the monomeric ubiquitin and further validated by immunohistochemistry. Marker m/z 2,753 was a peptidic fragment of albumin and was overexpressed in HCC while m/z 3,195, identified as a fragment of the alpha chain of hemoglobin, was specifically more intense in cirrhosis. This work provides complementary tools that could be useful in the early diagnosis of HCC. Identified biomarkers will gain further insights in the role of proteasome in the liver cancerogenesis. MALDI IMS and identification developed methods will be useful for other projects
Meunier, Léa. "Analyse de signatures transcriptomiques et épigénétiques des carcinomes hépatocellulaires." Thesis, Université de Paris (2019-....), 2020. http://www.theses.fr/2020UNIP7082.
Full textElucidating deregulated transcriptional and epigenetic processes in cancers is fundamental to better understand the biological pathways involved and to propose a therapy adapted to the molecular phenotype of each tumor. Classical unsupervised classification approaches define, for each tumor type, the main molecular groups. However, these methods, applied to complex tumors such as hepatocellular carcinoma (HCC), the 3rd cause of cancer-associated mortality worldwide, define groups that remain relatively heterogeneous and only imperfectly reflect the diversity of biological mechanisms at work in these tumors. During my PhD, I developed a, innovative strategy involving independent component analysis (ICA) to extract signatures of precise biological processes in large transcriptomic and epigenetic tumor data sets. This new approach allowed me to identify groups of co-regulated genes associated with specific phenotypes or molecular alterations. Similarly, independent component analysis of the methylomes of 738 HCC revealed 13 stable epigenetic signatures preferentially active in specific tumors and CpG sites. These signatures include signatures previously associated with ageing and cancer, but also new hyper- and hypomethylation signatures related to specific driver events and molecular subgroups. The work presented in this thesis sheds light on the diversity of molecular processes remodeling liver cancer transcriptomes and methylomes, improve the understanding of the molecular mechanisms involved in hepatic carcinogenesis and provides a statistical framework to unravel the signatures of these processes
Chicherova, Ievgeniia. "Netrin-1 and neurons in hepatocellular carcinoma." Electronic Thesis or Diss., Lyon, 2022. https://n2t.net/ark:/47881/m60r9pbg.
Full textChronic liver inflammation can lead to chronic liver diseases (CLD), including hepatitis, cirrhosis and hepatocellular carcinoma (HCC), which is the most common malignant primary liver tumor and is the 3rd most common cancer in terms of mortality worldwide. Regardless of the etiological factor all CLDs share numerous common patho-physiogycal mechanisms: unfolded protein response (UPR), chronic inflammation and fibrosis. Using animal model and clinical samples we studied another common denominator of CLDs and HCC, which is the system of axon guidance cue netrin-1 and its dependence receptors UNC5s. Netrin-1, known as pro-oncogenic in other solid tumors, is induced during hepatic inflammation, and the pro-apoptotic signal of UNC5 receptors is attenuated with overall increased ligand/receptor balance in cirrhosis and HCC. Chronic inflammation is mediated by multiple actors of the immune system. The implication of autonomic nervous system (ANS) in hepatic inflammation and CLD progression remains poorly understood. Looking at the involvement of pre-synaptic and post-synaptic neuronal signals in the cirrhosis and HCC, we observed the reshaping of the balance between intrahepatic sympathetic (adrenergic) and parasympathetic (cholinergic) nervous systems. In vivo model of cirrhotic HCC showed the progressive establishment of cholinergic orientation throughout the different stages of fibrosis. The overall cholinergic signal of HCC was associated with anti-inflammatory microenvironment and poorer survival in patients. The observed CLD-to-HCC progression in vivo was accompanied by the overexpression of immature neuronal markers in HCC. Altogether, we showed that the parasympathetic arm of the ANS is implicated in the patho-physiology of HCC, and encourage for the use of ANS-targeting drugs in HCC studies, many of which are clinically safe and well characterized. Trying to establish the connection between pro-survival and chemotactic netrin-1 and intrahepatic ANS, we found the positive association between netrin-1/UNC5s and cholinergic signal in HCC. Netrin-1 targeting by the monoclonal antibody NP137, currently studied in the clinical trials in the treatment of advanced solid tumors, showed remodeling of ANS orientation, confirming the sensitivity of ANS to netrin-1/UNC5 axis in the hepatic pathological context. The most common molecular anomalies in HCC in the TERT promoter and CTNNB1 gene, showed an association with netrin-1/UNC5 system, whereas mutations in T53, the well-known regulator of NTN1 and UNC5s expression did not show any implication in netrin-1/UNC5 axis reshuffling in clinical HCC samples, also unsensitive to functionality status of p53. In average, CTNNB1-mutated clinical samples correlated with adrenergic polarity of HCC, whereas TP53 mutations appear to be positively associated with cholinergic polarity of HCC. Taken together, my thesis results suggest the putative pro-cancerogenic role of the netrin-1 and the implication of the neuroregulation via ANS in the CLD and HCC development
Calatayud, Anna-Line. "Développement et caractérisation de modèles précliniques de carcinomes hépatocellulaires pour l'évaluation de la réponse thérapeutique et l'étude des mécanismes de l'hépatocarcinogenèse." Thesis, Université de Paris (2019-....), 2020. https://theses.md.univ-paris-diderot.fr/CALATAYUD_Anna_Line_va2.pdf.
Full textHepatocellular carcinoma (HCC) is a very aggressive malignancy, which is resistant to current therapeutic options for advanced stages. In addition, most of recent phase 2 or 3 clinical trials failed due to the development of multiple resistance mechanisms. In this context, preclinical models are very useful to understand the molecular biology of HCC and looking for new therapeutic targets or specific biomarkers of treatment response. Thus, in this work, the study of HCC cell lines that represent a subgroup of aggressive tumors but recapitulate the molecular diversity of HCC enabled us to show associations between specific molecular contexts and response to treatments allowing to establish several new therapeutic hypotheses. Thanks to these cell lines we also understand that the overexpression of MET as a criterion for inclusion of patients in tivantinib clinical trials explained its failures and to propose the expression of Ki67 as a better biomarker predictive of its antitumor efficacy. Finally, by studying murine models of oncogenic cooperation, we highlighted for the first time the tumor suppressor role of RSK2 in hepatic carcinogenesis, in cooperation with the inactivation of AXIN1 or the activation of the Wnt/β-catenin pathway. Overall, this study shows that preclinical models are extremely informative, despite their various limitations, they allow to bring new therapeutic hypotheses. In particular we demonstrated the crucial role of the RAS-MAPK pathway activation in HCC development reinforcing the interest of the use of MEK1/2 inhibitors in future clinical trials in candidate subgroups
L'Hermitte, Antoine. "Rôle de LECT2 dans le microenvironnement immunitaire au cours de la cancérogènese hépatique." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS360/document.
Full textHepatocellular carcinoma (HCC) is the second cause of cancer-rel ated death worldwide. Several studies highlighted the tumor microenvironment (TEM) as a key player in cancer from initiation to progression steps of tumorigenesis. Using relevant HCC mouse models, our team identified the chemokine-like LECT2 as a critical actor of liver TEM in the control of tumor aggressiveness.The aim of my thesis was to address functionally the role of LECT2 in the immune microenvironment during HCC.Using mouse models, we observed that the absence of LECT2 induces a significant accumulation of myeloid cells in the TEM. We showed that these myeloid cells were immature, harbored strong immunosuppressive capabilities on T cells and expressed a transcriptional program sustaining tumor progression. Interestingly, the accumulation of these actors in the microenvironment is associated with the emergence of poorly differentiated tumor nodules expressing epithelial-to-mesenchymal transition / progenitor / metastasis markers.Mechanistically, we demonstrated that LECT2-deficient hepatocytes in the context of β-catenin activation were able to perform EMT like WT hepatocytes do after TGF-β1 challenge. In co-culture experiments, we demonstrated that tumor-infiltrating myeloid cells in the absence of LECT2 have a strong ability to induce hepatocyte EMT.Finally, we analyzed the expression of LECT2 in a vast cohort of HCC liver samples and found that downregulation of LECT2 expression strongly correlates with 1) - the presence of vascular invasion, 2) – histological grade and 3) - the presence of inflammatory infiltrates.Altogether, our data demonstrate that LECT2 acts as a strong regulator of liver tumor aggressiveness through its dual action on hepatocytes and impact on the function of tumor infiltrating myeloid cells. This work identifies LECT2 as a new biomarker for HCC and pave the way to new therapeutic strategies