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Academic literature on the topic 'Carcinome pulmonaire non à petites cellules – Dissertations universitaires'
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Dissertations / Theses on the topic "Carcinome pulmonaire non à petites cellules – Dissertations universitaires"
Alzahouri, Kazem. "Pratiques diagnostiques pour les nodules pulmonaires isolés et le cancer du poumon non à petites cellules : caractérisation, déterminants et évaluations médico-économiques de l'introduction de la tomographie par émission de positon." Nancy 1, 2006. http://www.theses.fr/2006NAN11301.
Full textTacelli, Nunzia. "Perfusion tumorale en TDM thoracique dynamique : application à l’évaluation de la néoangiogénèse des cancers broncho-pulmonaires non à petites cellules." Thesis, Lille 2, 2013. http://www.theses.fr/2013LIL2S017.
Full textRecent advances in molecular biology have dramatically accelerated our understanding of tumoral lesions and triggered development of novel targeted therapies. Among them, antiangiogenic drugs represent a promising strategy for non-small cell lung carcinomas (NSCLC). These agents are more cytostatic rather than cytotoxic, explaining the limitations of tumor response assessment based on morphological criteria, such as the RECIST criteria (Response Evaluation Criteria In Solid Tumors). The purpose of this thesis was to investigate tumoral perfusion using dynamic contrast-enhanced (DCE) CT, a novel technology enabling whole-tumor analysis with 64 slices per rotation. Our first study validated the pathological substratum of quantitative CT information on tumoral blood volume (BV) and capillary permeability (CP) in 15 NSCLC treated by surgery. Confident interpretation of CT data sets then allowed us to investigate changes in tumoral neovascularisation of NSCLC under chemotherapy. DEC-CT showed significant reduction in BV and CP of tumors treated by standard chemotherapy combined with antiangiogenic drugs (bevacizumab) (Group 1; n=17), not observed in tumors treated by standard chemotherapy alone (Group 2; n=23). In Group 1, the reduction in BV after one cycle of chemotherapy was significantly higher in responders than in non-responders (p=0.0128), response to treatment being only defined after 3 cycles of chemotherapy. DCE-CT can depict early changes in lung cancer vascularity, before tumour shrinkage, that may help predict response to antiangiogenic drugs
Côté, Jean-François. "Etude de facteurs prédictifs dans le traitement anticancéreux du cancer colorectal et broncho-pulmonaire." Paris 5, 2007. http://www.theses.fr/2007PA05P629.
Full textColorectal (CRC) and broncho-pulmonary (BPC) cancers are major public health problems. Promising new treatments are available, notably targeted chemotherapies. Inter-individual variation in terms of efficacy and toxicity of the drugs are often difficult to predict, limiting the utility of these treatments. As these treatments are thus potentially ineffective and/or toxic, it is important to develop predictive factors for these variations in response. Molecular biological tools are available which can determine the characteristics of the individual (phannacogenetic) or his tumor (pharmacogenomic). In order to better understand the potential predictive parameters of these anticancer chemotherapies, we studied CRC and BPC from a histological and molecular standpoint. In the first study, we showed that KRAS mutations were predictive of resistance to cetuximab in metastatic CRC. In the second study, we showed that EGFR mutations were linked to the histological subgroup bronchioloalveolar carcinoma. The classification of bronchioloalveolar carcinoma allows the identification of patients likely to have an EGFR mutation and who could thus benefit from anti-EGFR treatment. The third study showed that the presence of the polymorphism -3156G>A of UGT1A1 allowed the prediction of hematological toxicity in patients with CRC treated with CPT-11. The techniques currently used in pharmacogenetics and pharmacogenomics will continue to improve, with increased cost/benefit ratios and availability. This will help physicians prescribe the treatment best adapted to each patient, and evolve towards a personalized approach to medical oncology
Renaud, Stéphane. "Impact de l’hypoxie sur la progression tumorale des cancers bronchiques non à petites cellules (CBNPC)." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAJ117.
Full textTumoral hypoxia, and his target HIF-1α, are linked to the epithelial to mesenchymal transition (EMT) in various solid tumors. EMT has been linked to chemotherapy resistance and metastases in many cancers. In this work, we have shown that tumoral hypoxia may help to define a worst prognosis in case of hypoxia after non-small cell lung cancer surgery (NSCLC). We have also shown that on NSCLC cell lines harboring activating EGFR mutations, hypoxia trough expression of HIF-1α, was able to induce EMT, with activation of different transcription factors according to cell mutational status: induction of SNAIL-1/SNAIL-2 in H1650 cell line harboring exon 19 deletion, induction of SNAIL-1/ZEB-1 in H1975 cell line harboring both exon 21 L858R and exon 20 T790M mutations. Considering all these data, it appears that HIF-1α may be considered a a new therapeutic target
Lesage, Julien. "Implication des Zonula Occludens dans la progression métastatique des cancers broncho-pulmonaires." Thesis, Reims, 2016. http://www.theses.fr/2016REIMM201.
Full textIn metastatic epithelial tumor conversion, cancer cells acquire new invasive and migratory capacities in association with epithelial-to-mesenchymal transition (EMT) process. During EMT, the junctional components are reorganized and the sub-membrane scaffolding protein zonula occludens (ZO)-1 relocates from tight junctions into cyto-nuclear compartment where it displays pro-invasive functions during tumor progression. In the present study, we focused on functional involvement of cyto-nuclear pool of ZO-1 on CXCL8/IL-8 regulation. In vitro, we observed correlation between level of IL-8 protein, invasive capacities of lung cancer cells and ZO-1 location. By overexpression of various ZO members, we showed that ZO-1 controls specifically IL-8 expression and active CXCL8 gene transcription by NF-κB dependent mechanism in lung and breast cancer cells. We also reported by in vitro assays that ZO 1 activates NF-κB. Investigation of functional implication of this regulatory axis next showed the pro-angiogenic activity of ZO-1 in both ex vivo and in vivo angiogenesis assays. Finally, we founded that non-small cell lung carcinoma (NSCLC) presenting a cyto-nuclear ZO-1 pattern were significantly more angiogenic that those without detectable cyto-nuclear ZO-1 expression.Thus, this study presents a new role of ZO-1 in establishment of pro-angiogenic tumor microenvironment through its capacity to modulate IL-8 expression via an NF-κB dependent mechanism
Planchard, David. "MAP Kinases et protéines de réparation dans les cancers pulmonaires non à petites cellules." Paris 11, 2009. http://www.theses.fr/2009PA11T113.
Full textMaillet, Agnès. "Effet thérapeutique du cetuximab administré par aérosol dans un modèle animal de tumeur broncho-pulmonaire : importance du récepteur Fc Rn dans la réponse anti-tumorale à cet anticorps." Thesis, Tours, 2008. http://www.theses.fr/2008TOUR3104/document.
Full textThe project aims at determining whether aerosoltherapy is well suited for monoclonal antibodies (Mab), in Non-Small Cell Lung Cancer (NSCLC). In addition, exploration of the expression of FcRn, an IgG receptor contributing to increased half-life and biodistribution of Mab, has been studied in NSCLC. Using cetuximab, an anti-EGFR Mab, we showed that Mab resist the physical constraints of nebulization. Biodistribution and pharmacokinetic analyses, using a murine model, revealed that cetuximab is highly and durably accumulated within the lungs and slowly and weakly released into the bloodstream following airways delivery. Moreover, animal tumors seem sensitive to cetuximab aerosoltherapy. Expression analysis of FcRn at both the transcript and protein levels showed that the receptor is downregulated in NSCLC. FcRn alteration of expression in the tumor might be due to hypermethylation of the gene promoter as often found in cancer