Dissertations / Theses on the topic 'Cancer – Récidives'
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Devins, Claude Olivier. "Récidives locales et régionales du cancer du sein après traitement conservateur." Rennes 1, 1993. http://www.theses.fr/1993REN1M089.
Full textRoncheau, Valérie. "Récidives pelviennes des cancers du rectum : topographie, mécanismes et implications chirurgicales." Bordeaux 2, 1998. http://www.theses.fr/1998BOR23068.
Full textBrureau, Laurent. "Les déterminants de la récidive biologique après prostatectomie radicale." Antilles-Guyane, 2011. http://www.theses.fr/2011AGUY0460.
Full textObjectives: To estimate the rate of biochemical recurrence and to define factors forecast after prostatectomie radical within the Guadeloupean population. Patients and methods: It is about a prospective study, monocentric which included 993 consecutive patients between 2000 and 2010 who benefited from a radical prostatectomie, that is 2869 personsyears. Results: The rate of biochemical recurrence is 20,2 % in our study. The predictive factors are the pathological digical rectal examination, a rate of PSA ~ 10,6 ng/ml, the data of the biopsy that is Gleason score> 7 et 4+3 and the percentage of length of positive biopsies> Il,1 %. The presence of positive surgical margins is the only criterion per operating determining of the biochemical recurrence. 1 Discussion: Our results are consolidated by the other authors. However, sorne suggest the consideration of the other parameters such as the genetic and environmental factors
Dommesent, Damien. "Le cancer du sein inflammatoire : à propos de 40 patientes traitées au Centre François Baclesse entre 1987 et 1992." Caen, 1993. http://www.theses.fr/1993CAEN3072.
Full textAimeur-Martin, Dahbia. "Récidives locales agressives du cancer du sein : expérience du C.R.L.C. de Montpellier à propos de 70 cas traités entre 1970 et 1992." Montpellier 1, 1995. http://www.theses.fr/1995MON11090.
Full textEven, Philippe. "La surveillance des patients opérés de cancers recto-coliques, bilan d'un protocole : à propos de 67 récidives et métastases." Bordeaux 2, 1994. http://www.theses.fr/1994BOR23043.
Full textMelo, Garcia Luciana. "UGT2B17 : marqueur de récidive biochimique du cancer de la prostate après prostatectomie radicale." Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/38189.
Full textThe enzyme uridine glucuronyltransferase 2B17 (UGT2B17) inactivates androgens and influences androgen exposure in the prostate. Thus, UGT2B17 genetic variability can change its activity as well as hormone levels and might have an impact in PCa progression. We have studied the association between UGT2B17 gain-of-function polymorphisms (rs59678213C>T and rs6817882T>C) with hormone levels and the risk of biochemical recurrence in 526 patients who had localized PCa after radical prostatectomy. The effect of UGT2B17 overexpression on PCa phenotype was also analysed in 239 primary tumours by tissue microarray (TMA). Besides, we have determined the hormonal profile of 48 patients with both localized PCa and UGT2B17 complete deletion. When compared to non-carriers, patients having rs59678213TT genotype presented a 14% reduction in androsterone (ADT) levels (p = 0.002). They also had increased levels of glucuronide metabolites such as ADT-G (16% reduction; p = 0.002) and 3α-diol-17-G (18 %; p = 0.005), which is in keeping with greater UGT2B17 activity. Carriers of this genetic variant were also at increased risk of biochemical recurrence (HR = 1.80; 95% CI: 1.23 – 2.64; p = 0.002). Furthermore, patients carrying UGT2B17 complete deletion had increased levels of adrenal precursors (≥ 33 %; p < 0.006). Tumoral overexpression of UGT2B17 was associated with decreased levels of PSA, smaller tumours and lower rates of positive margins. It was also an independent marker for biochemical recurrence (HR = 2.05; 95% CI: 1.04–4.37; p = 0.047). In summary, UGT2B17 genetic variants and tumoral overexpression of UGT2B17 significantly modify androgenic levels and seem to influence PCa progression.
Brulin-Lemanski, Claire. "Récidives locales des cancers du sein après traitement conservateur par chirurgie-radiothérapie : facteurs de risque et conséquences des échecs locaux à propos de 423 cas." Montpellier 1, 1997. http://www.theses.fr/1997MON11037.
Full textGrès, Philippe. "Sepsis profonds et fistules après chirurgie pour cancer du rectum : facteurs de récidives loco-régionales ?" Montpellier 1, 1999. http://www.theses.fr/1999MON11111.
Full textBrunet, Jean-Marc. "Récidive ganglionnaire des mélanomes malins : protocole pilote associant curage ganglionnaire extensif et radiothérapie : expérience du centre de recherche et de lutte contre le cancer de Montpellier à partir de 27 cas." Montpellier 1, 1996. http://www.theses.fr/1996MON11076.
Full textSimard, Sébastien. "Vers une conceptualisation multidimensionnelle de la peur de la récidive du cancer : évaluation, nature des pensées intrusives et comorbidité psychiatrique." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25283/25283.pdf.
Full textLellouche, Didier. "Apport de l'électronthérapie et de l'hyperthermie dans le contrôle local des récidives et métastases cutanées du mélanome malin." Montpellier 1, 1989. http://www.theses.fr/1989MON11060.
Full textMathieu, Romain. "Prédiction du risque de récidive du cancer de prostate à partir d'une caractérisation multimodale." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1B013.
Full textObjective: The aim of this work was the prediction of prostate cancer recurrence based on a multimodal characterization of this cancer including pathological markers, tissue biomarkers, and quantitative parameters from Magnetic Resonance Imaging (MRI), and to propose a method to assess correlations between these factors. Material and methods: The prognostic values of the new ISUP groups, the lymphovascular invasion, the expressions of Ki67, Survivin et Caveolin-1 were assessed in large multicentric and international cohorts of patients with prostate cancer treated with radical prostatectomy. A review of the literature investigated the use and the performance of radiomics and texture analysis to predict prostate cancer recurrence. The prognostic value of MRI features including Haralick’s texture features to predict biochemical recurrence after prostate cancer radiotherapy was assessed in a retrospective cohort of 83 patients. In a preliminary study including eight patients, a method to correlate in-vivo observations from pre-operative imaging with biological findings from radical prostatectomy using quantitative analysis was proposed. Résultats: Our studies confirmed the new ISUP groups, the lymphovascular invasion, the expressions of Ki67, Survivin and Caveolin-1 were associated with adverse pathologic features and prostate cancer recurrence after radical prostatectomy. However, these factors did not add clinically relevant information to established models. Our review of the literature revealed radiomics was promising for tumor identification and characterization but that few studies assessed its prognostic value. We demonstrated T2-w Haralick’s features were predictors of biochemical recurrence after prostate cancer radiotherapy. With a mean error of 4.90mm, our method to register prostate whole mount histology to in-vivo MRI resulted in the construction of classifiers to predict the presence of tumor, Gleason score, and Ki67 expression. Conclusion : Our work confirm the prognostic value of different markers from tissue, pathological pre-operative imaging analyses. Our method of registration and correlation of these markers leads to promising preliminary results that justify further evaluation with larger cohorts of patients
Berrahmoune, Saoussen. "Étude des mécanismes régissant l’efficacité photodynamique sélective de l’Héxylaminolévulinate-Protoporphyrine IX dans le traitement du cancer de la vessie : Application dans le cadre de la prévention de ses récidives." Thesis, Nancy 1, 2009. http://www.theses.fr/2009NAN10012/document.
Full textPhotodynamic therapy (PDT) is a treatment modality based on the cytotoxic effect occurring on target tissues by interaction of a photosensitizer with light in the presence of oxygen. The aim of this study was to optimise PDT for treatment and prevention of recurrence of bladder cancer. The study was performed in vivo. PDT was performed with Hexvix® a precursor of the photosentitizer protoporphyrin IX (PpIX). First, we executed a mechanistic analysis of differential PDT effects according to Hexvix® concentration. 8 or 16 mM induced diametrically opposed photodynamic effects. PDT efficacy is depends on the mitochondrial localization of PpIX and its concentration and leads to pro-apoptotic damages. Second, PDT was performed in a rat model mimicking post fluorescence guided TUR. The amount of viable tumor cell within the bladder lumen significantly decreased with PDT and resulted in a significant reduction of tumor implantation
Riemenschneider, Janine. "A propos de récidives après traitement du cancer du col utérin : étude de 70 cas traités au centre hospitalier universitaire de Tübingen-RFA." Université Louis Pasteur (Strasbourg) (1971-2008), 1985. http://www.theses.fr/1985STR1M236.
Full textCorvaisier, Matthieu. "Implication des co-activateurs transcriptionnels YAP/TAZ dans la régulation entre la croissance et la dormance tumorale des cellules du cancer colorectal : mécanismes moléculaires et perspectives thérapeutiques." Thesis, Lille 2, 2016. http://www.theses.fr/2016LIL2S028/document.
Full textColorectal cancer is the most frequent and lethal cancerous pathology from the digestive system. Each year in France, 41 000 new cases are diagnosed and 17 000 patients die due to this pathology. This high mortality is mainly due to the rate of patients with liver metastatic lesions and the early relapse of those metastases after treatment. The use of chemotherapy prior to surgery induces a decrease of early relapse, however 2 years after resection this advantage is lost. Thus, understanding the mechanisms underlying escape to treatment is required to try to delay or prevent tumor recurrence.The aim of this doctoral work was to analyze clonal chemoresistant subpopulations derived from the colorectal cancer cell line HT29 after chronic exposure to 5-Fluorouracil (5FU) and molecular mechanisms associated with chemoresistance. The most chemoresistant clonal subpopulation, 5F31, stops its proliferation after treatment with high dose of 5FU, this behavior being associated with the modulation of the c-Yes/YAP axis. After treatment, 5F31 cells enter quiescence, interaction between c-Yes and YAP is lost and total and nuclear YAP protein expression reduces significantly (Igoudjil, Touil, Corvaisier et al. 2014, Clinical Cancer Research). The next step was to study functions of YAP protein in this chemotherapy- induced quiescence.Pharmacological or transient inhibition of YAP and its homolog TAZ, induces quiescence and reduces cellular growth in several colorectal cancer cell lines. On the other hand, overexpression of a constitutively active form of YAP in 5F31 cells forces cells to remain proliferative under 5FU treatment, enhancing 5F31 cell chemosensitivity to 5FU.Regarding proteic effectors, quiescence (either induced by 5FU or YAP/TAZ inhibition) is associated with loss of expression of the transcription factor c-Myc and Cyclin E1. In 5F31 cells expressing the active mutant form of YAP, Cyclin E1 expression is sustained after 5FU treatment through the activation of the transcription factor CREB. Cyclin E1 inhibition is sufficient to induce quiescence, therefore introducing this protein as one of the final effectors of YAP/TAZ co-activators in the regulation of the proliferation/quiescence switch in colorectal cancer cells (Corvaisier et al. 2016, Oncotarget).To conclude, our work reveals the importance of YAP/TAZ proteins for the maintenance of colorectal cancer cells proliferation through Cyclin E1 expression. Our work on liver metastases from patients with colorectal cancer shows that high expression of YAP/TAZ is connected to a higher proliferative index in metastatic lesions. Moreover, high YAP/TAZ expression is associated with shorter patient progression-free survival and shorter overall survival. Studying the expression and level of YAP/TAZ activation could be an interesting prognosis marker to anticipate metastatic relapse and potent druggable target to delay tumoral recurrence
Berrahmoune, Saoussen. "Étude des mécanismes régissant l'efficacité photodynamique sélective de l'Héxylaminolévulinate-Protoporphyrine IX dans le traitement du cancer de la vessie. Application dans le cadre de la prévention de ses récidives." Phd thesis, Université Henri Poincaré - Nancy I, 2009. http://tel.archives-ouvertes.fr/tel-00375927.
Full textNous avons développé cette modalité d'une part pour le traitement des tumeurs urothéliales non invasives de la vessie et d'autre part pour prévenir les récidives de ce type de cancer. Les études ont été réalisées en préclinique sur des rates Fischer 344 implantées par des tumeurs vésicales orthotopiques et syngéniques. Le traitement photodynamique a été développé en utilisant l'Hexvix® précurseur de protoporphyrine IX (PpIX).
Dans une première partie, les paramètres biologiques liés à la PpIX et qui régissent l'efficacité du traitement photodynamique des tumeurs vésicales ont été déterminés en fonction de deux concentrations d'Hexvix® (8 et 16 mM) induisant des effets photodynamiques diamétralement opposés.
Nous avons montré que l'efficacité du traitement obtenue pour 8 mM d'Hexvix® était liée à la localisation mitochondriale du photosensibilisateur induisant des dommages pro-apoptotiques après PDT.
Dans une deuxième partie, nous avons étudié la possibilité de réduire les récidives des tumeurs vésicales en utilisant la PDT suite à la résection transuréthrale dirigée par fluorescence. Un modèle préclinique chez le rat mimant la situation post résection transuréthrale a été mis au point. Nous avons montré que les cellules tumorales étant chargées de PpIX, la PDT entraîne leur destruction et donc une diminution significative du pourcentage de l'implantation tumorale.
La PDT utilisant Hexvix®/PpIX est une modalité de traitement alternative intéressante pour le traitement des tumeurs vésicales non musculo-invasives et pour la prévention de ses récidives.
Tribondeau, Philippe. "Les pelvectomies dans les rechutes des cancers du col de l'utérus : analyse et expérience de la Fondation Bergonié." Bordeaux 2, 1994. http://www.theses.fr/1994BOR23080.
Full textGharavi, Catherine. "Récidive après traitement conservateur pour cancer du sein : registre des cancers de Côte d'Or." Dijon, 1996. http://www.theses.fr/1996DIJOM038.
Full textChollet, Olivier. "Surveillance au long cours aprés traitement chirurgical du cancer recto-colique : le bilan de 185 patients." Bordeaux 2, 1990. http://www.theses.fr/1990BOR25242.
Full textPettersen, Renaud. "Les processus cognitifs impliqués dans la peur de la récidive du cancer." Thèse, Université du Québec à Trois-Rivières, 2014. http://depot-e.uqtr.ca/7369/1/030674050.pdf.
Full textEsfandiari, Nazanene-Hélène. "Cancer bronchique primitif survenant aprés un premier cancer traité : à propos de 165 cas." Bordeaux 2, 1995. http://www.theses.fr/1995BOR2M068.
Full textSuchocka, Agnieszka. "État psychologique, peur de la récidive, adaptation à la maladie et qualité de vie des patients atteints d'un mélanome de la choroïde." Paris 5, 2010. http://www.theses.fr/2010PA05H105.
Full textBackground : Treatments for choroidal melanoma (CM), the most common primary intraocular malignant cancer in adults, generate largely unknown consequences on the psychological state and the level of the quality of life (QoL). Prospective published work is relatively rare and their results are not consistent. Objectives: This study aims to evaluate the psychological state (anxiety, depression), fear of recurrence (FCR) and the QoL in patients with CM over time. Account for coping strategies used by patients before and after treatment. Methods : Population : Patients diagnosed with CM receiving conservative treatment (ttt) (proton or hard of iodine) or enucleation. Tools : Quality of life (EORTC-QLQ-C30 + QLQ-OPT-30), mental adjustment to illness (MAC-44), anxiety and depression (HADS, STAI-B-trait), fear of cancer recurrence (IPRC), semi-structured interview. Data collection : Longitudinal study with fourevaluation's times: before the ttt, one month, six months and one year after the ttt. Results: 83 patients: 69 conservatives' ttt and 14 enucleations. More than half of patients (median 8) show a moderate level of anxiety before ttt which reducing after ttt (p O. OOOl). The depressive symptoms of minor intensity remained stable (p = 0. 34). The FCR persists over time (p = 0. 15). Anxious preoccupations (p = 0. 03) and negative adaptation decreased (p = 0. 01) over time. Denial (M near to 60, Med > 50) is the most frequently used coping strategy. The overall level of QoL remains relatively good with a tendency toward improvement (p = 0. 01). Conclusions: The FCR assesses a construct close to but nevertheless distinct from anxiety and psychological distress in cancer patients
Bollet, Marc. "Etude des récidives locales des cancers du sein traités de façon conservatrice chez la femme jeune, non ménopausée." Paris 11, 2007. http://www.theses.fr/2007PA11T080.
Full textBrureau, Laurent. "Cancer de la prostate en Guadeloupe : Facteurs de risque génétique et environnementaux de survenue et de récidive après prostatectomie radicale." Thesis, Antilles, 2015. http://www.theses.fr/2015ANTI0018/document.
Full textProstate cancer is the most common tumor pathology in West Indies. Our study aims to study risk factors of occurrence and recurrence.To carry out this study, we used the patients included in the case-control study called Karuprostate and a cohort of patients after radical prostatectomy.The main results and conclusions of my work are:a) The study of genetic factors related to the metabolism of xenobiotics and the risk of prostate cancer occurrence in Guadeloupe. The exact number (CNV) gene encoding the glutathione S transferases GSTT1 and GSTM1 were determined in 629 incident cases of prostate cancer and 622 controls. Men having 2, 3 or more copies of GSTT1 have a significantly increased risk of prostate cancer. Similarly men with 3, 4, 5 or more copies of GSTM1 and GSTT1 combined have an increased risk of disease occurrence.b) The study of genetic factors related to estrogen metabolism and the risk of prostate cancer occurrence in Guadeloupe. Five polymorphisms (SNP 3 on CYP17, CYP1B1 and COMT as well as size and UGT1A1 polymorphisms on CYP19) were studied and compared in 498 incident cases and 565 controls. Individuals with the AA genotype COMT have a significantly decreased risk of prostate cancer occurrence. No significant association was found with other studied polymorphisms. A study of 150 incident cases of prostate cancer and 150 controls from a population of Congo-Zaire was the subject of these same genotyping, with the same results.c) The influence of environmental exposure to persistent pollutants with hormonal properties of biochemical recurrence of prostate cancer after radical prostatectomy. The plasma concentrations of chlordecone, DDE (the main metabolite of DDT) and PCBs were measured in 340 subjects with prostate cancer who underwent radical prostatectomy. The exhibition (preoperative) to chlordecone was found associated with a significant increased risk of biochemical recurrence. Conversely, the increasing concentrations of DDE were found associated with a significantly decreased risk of biochemical recurrence. No association was found between exposure to PCB153 and recurrence of the disease.d) The clinical and histological risk factors of recurrence of prostate cancer were studied in 964 patients who underwent radical prostatectomy with a médian follow-up of 4.8 years. Diabetes, PSA, advanced clinical stage, high Gleason score, a high percentage of prostate biopsy, advanced pathological stage, the presence of positive margins are predictors of biochemical recurrence after radical prostatectomy.Our results show that the occurrence and recurrence of prostate cancer are Under influence of genetic and environmental factors. The specific genetic and environmental context in Guadeloupe may partly explain the high incidence of prostate cancer.In addition, further work will incorporate other genes in the future. The next ambitious project is the creation of a prospective cohort of all patients with all prostate cancer stages
Roman, Jimenez Geoffrey. "Analyse des images de tomographie par émission de positons pour la prédiction de récidive du cancer du col de l'utérus." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S037/document.
Full textThis thesis deals with the issue of predicting the recurrence within the context of cervical cancer radiotherapy. The objective was to analyze positron emission tomography (PET) with 18F-fluorodeoxyglucose (18F-FDG) to extract quantitative parameters that could show statistical correlation with tumor recurrence. Six study were performed to address 18F-FDG PET imaging issues such as the presence of bladder uptake artifacts, tumor segmentation impact, as well as the analysis of tumor evolution along the treatment. Statistical analyses were performed among parameters reflecting intensity, shape and texture of the tumor metabolism before, and during treatment. Results show that the pre-treatment metabolic tumor volume and the per-treatment total lesion glycolysis are the most promising parameters for cervical cancer recurrence prediction. In addition, combinations of these parameters with shape descriptors and texture features, using machine-learning methods or regression models, are able to increase the prediction capability
Degorre, Charlotte. "La sénescence radio-induite des cellules endothéliales : voies moléculaires et implication dans la récidive du glioblastome multiforme après radiothérapie." Thesis, Nantes, 2018. http://www.theses.fr/2018NANT1030/document.
Full textRadiotherapy is one of the main standard cancer treatment. Adjacent tissues, in particular endothelial cells, are never completely spared, especially in the case of highly invasive tumors such as glioblastoma (GBM). This aggressive tumor always relapses in the initial radiation field and the presence of senescent endothelial cells have been shown at this site. The objectives of my thesis were to better characterize the molecular pathways involved in radiationinduced senescence of endothelial cells and to investigate how it might impact GBM responses to radiotherapy. First, using a new model of radiation-induced senescence from primary and quiescent microvascular endothelial cells, we identified two distinct molecular pathways involved in long-term senescence: the canonic pathway p53 and an undescribed mitochondrial pathway involving respiratory chain dysfunction and chronic superoxide anion production. Pharmacological inhibition of either one of these pathways prevents endothelial cell senescence. Then, using biochemical and phenotypic analyses, we unrevealed a crucial role of their secretome in radiation response of GBM cells. Indeed, secreted CXCL8 and CXCL5 by senescent endothelial cells increase both genomic instabilities, displayed by polynucleidy, abnormal division and micronuclei formation, and radio-resistance of tumor cells, leading ultimately to more aggressive tumors in a murine orthotopic GBM model. These results highlight the impact of irradiation on healthy tissues and its potential impact on tumor reccurence. Targeting the molecular actors identified during my thesis, could reduce GBM relapse and increase patient survival
Bendifallah, Sofiane. "Prédiction et modélisation du risque dans le cancer de l'endomètre de stade précoce." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066319.
Full textWith the abundance of new options in diagnostic and treatment modalities, a shift in the medical decision process for endometrial cancer has been observed. The emergence of individualized medicine and the increasing complexity of available medical data have lead to the development of prediction models. In endometrial cancer, those clinical models (algorithms, nomograms, and risk scoring systems) have been reported, for stratifying and subgrouping patients, with various unanswered questions regarding such things as the optimal surgical staging for lymph node metastasis as well as the assessment of recurrence and survival outcomes. Through this manuscript we developed the question of the risk stratification for recurrence at the population level and the probability of lymph node involvement estimation at an individual level in early stage endometrial cancer. This double approach was adopted with the aim to illustrate the interest of these tools in clinical practice. At the population level, we proposed: i) a comparison of the main international clinicopathological classifications ii) a new clinicopathological classification based on a pathological predictor iii) two risk stratification systems for recurrence and lymph node metastasis. At the individual level we developed: i) a reproducible methodology for external validation of predictive models, ii) a specific clinic pathological nomogram for lymph node metastasis. In the future, the emerging field of molecular or biochemical markers research may substantially improve the predictive approach for preventive and curative strategies in endometrial cancer
Rafla, Mona Helmy. "Les acteurs pronostiques du cancer de la vessie bilharzienne en Egypte." Paris 7, 1985. http://www.theses.fr/1985PA07F098.
Full textJégu, Jérémie. "Cancer ultérieur chez les survivants d'un premier cancer : incidence et impact sur la survie." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAJ006/document.
Full textThe objectives of this PhD thesis were: to study the trends of the risk of second primary cancer (SPC) among patients with a head and neck (HNSCC) cancer in Bas-Rhin, to provide first nationwide estimates of the risk of SPC in France and to assess the survival of patients with a HNSCC depending on their history of cancer. This work showed that : 1) The excess risk of SPC of head and neck and esophagus sites decreased by 53% over three decades among patients with a HNSCC, and that the excess risk of SPC of the lung did not change significantly. 2) The risk of SPC among cancer survivors in France was increased by 36% compared to the general population. 3) History of cancer was strongly associated with survival among HNSCC patients. Several epidemiological and clinical research perspectives can be established based on this work. These results also present an interest in a public health perspective in the framework of the third cancer plan
Paoli, Marine de. "Cancer de la vessie : sélection de biomarqueurs urinaires et développement d’un outil d’analyse multiparamétrique pour le diagnostic et la récidive des tumeurs urothéliales." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1158/document.
Full textThe work reported in this thesis focuses on the development of a multiplex analytical tool for the quantification of selected bladder cancer urinary biomarkers.The aim of the first part of this work is the selection of urinary biomarkers for the diagnosis and recurrence of urothelial tumors. A first study evaluated the selectivity of candidate markers in urine samples of bladder cancer patients. Five of the twenty initial markers were selected for their diagnostic performance. They define Panel 1: VEGF, MMP9, IL8, PTGS2 and EN2. A second study was then conducted to assess the potential of urinary markers and clinical parameters for the diagnosis of bladder cancer recurrence. Two types of urine samples were thus evaluated: samples from recurrent bladder cancer patients and samples from bladder cancer patients without recurrence. Panel 2 was then defined based on the best performing multivariate regression model. It includes the following clinical and molecular parameters: number of past recurrences, number of BCG therapies, tumor stage at diagnosis, CDH1, IL8, ErbB2, IL6, EN2 and VEGF.The second part involves the development of a multiplex test for the quantification of the selected markers. It is a high-throughput automated platform in a 96-well microtiter plate format. It was designed as a multiplex sandwich immunoassay based on a protein microarray. The platform development began with Panel 1 for which three of the five markers (VEGF, MMP9 and IL8) were successful integrated into a multiplex immunoassay. The end of the second marker selection study marked the development transition from Panel 1 to Panel 2. With the exception of EN2, requiring a different immunoassay configuration, all the Panel 2 markers were integrated into the platform
Lakkis, Zaher. "Impact pronostique et thérapeutique du cancer de prostate sur la prise en charge du cancer du rectum." Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCE012.
Full textRectum and prostate are two pelvic organs with intimate anatomical relationships. Previous or synchronous prostate cancer may alter outcomes and management of rectal cancer.Using datas from three multicenter retrospective cohorts, three objectives have been explored. First, assessing the impact of a history of prostate cancer on morbidity and prognosis of resected rectal cancer. Then, assessing safety and morbidity of a strategy with bowel restorative surgery. Finally, describing management and treatment of synchronous rectal and prostate cancer.A history of prostate cancer significantly increased the rate of anastomotic leakage at rectal surgery (25% vs. 14%, p = 0.019) and local recurrence rate (17% vs. 8%, p = 0.019). Then, we did not find any significant increased morbidity when digestive anastomosis was performed (p = 0.08). Delayed coloanal anastomosis might be a safe option. Finally, simultaneous curative management is possible for synchronous prostate and rectal cancers; an algorithm could help decision-making.Management of metachronous or synchronous rectal and prostate cancers is uncommon. Multidisciplinary and specialized decision is paramount
Bonneau, Claire. "Étude des mécanismes de récidive métastatique dans les cancers du sein luminaux de stade précoce : impact du microenvironnement tumoral Caractérisation moléculaire des cancers du sein en pratique clinique A subset of activated cancer associated fibroblasts is associated with distant relapse in early luminal breast cancers." Thesis, Sorbonne Paris Cité, 2018. https://wo.app.u-paris.fr/cgi-bin/WebObjects/TheseWeb.woa/wa/show?t=2365&f=17162.
Full textPurpose: Early luminal breast cancers (BC) represent 70% of newly diagnosed BC. Their prognosis is generally favorable but some patients (around 5 to 10% at 10 years) will relapse with distant metastases and most of them will die. Because this dismal prognosis concerns a small number of patients, T1N0 BC have been rarely studied. The aim of this work was to identify the mechanisms of metastatic recurrence in luminal breast cancers T1b-cN0M0 at diagnosis by deciphering characteristics of both epithelial cancer cells and their surrounding tumor microenvironment (TME). Experimental Design: We constituted a cohort of luminal T1b-cN0 BC patients with metastatic recurrence (defined as "cases”) and corresponding "controls" (i. e. patients without metastatic relapse) matched (1:1) to cases on the main known prognostic factors: age, tumor grade and tumor proliferation (assessed by Ki67). Results: We found that properties in both epithelial compartment and TME are indicative of relapse in early luminal breast cancers. In univariate analysis, the loss of differentiation (assessed by the reduced expression of CDH1/E-cadherin) in cancer cells is associated with recurrence, as also predicted by high ROR score using ProsignaTM test. In TME, quantitative and qualitative immunohistochemical analyzes reveals that “cases” are characterized by a significant decrease in CD4+ T lymphocytes and an accumulation of a particular subset of Cancer Associated Fibroblasts (CAF-S1) compared to “controls”, without any other association of T lymphocyte subtypes, B lymphocytes, macrophages or dendritic cells. In multivariate analysis, TME features, in particular CAF-S1 enrichment, remain significantly associated with recurrence, which demonstrates their biological and clinical relevance. Finally, by performing functional analyses, we demonstrated that CAF-S1 pro-metastatic properties are -at least in part- mediated by CDH11/Osteoblast cadherin, consistent with the fact that the bones are a major site of metastases in these patients. Conclusions: Distant recurrence in early luminal BC is strongly associated with TME features, such as the presence of CAF-S1 and their expression of CDH11. This is independent of tumor cells and represents a new prognostic factor of distant relapse in early luminal BC patients. This could justify targeted therapies against CAF-S1 or CDH11 in these cases
Mihalache, Adriana. "Recherche de nouveaux marqueurs diagnostiques et/ou pronostiques pour le cancer du côlon." Thesis, Lille 1, 2016. http://www.theses.fr/2016LIL10224/document.
Full textColorectal cancer (CRC) is the second leading cause of cancer-related death in the Western world. Unlike many other malignancies, CRC is a preventable and curable disease if early stage tumors are removed. However many CRC remain undetected until they have spread to the surrounding organs or lymph, correlating with poor prognosis because of the low sensitivity and specificity of fecal occult blood tests used for screening of risk populations. In this context, there is an urgent need to identify biomarkers for early detection of CRC, to follow tumor development during the course of therapy and to predict recurrence. Mucins, major glycoproteins found in the mucus film covering and protecting the colon mucosa, are frequently altered in colon cancer and implicated in the pathogenesis of cancer. The main goal of this PhD project was to explore alteration of expression and glycosylation of colonic mucins during progression of adenomas to a colorectal cancer and to identify, among all these modified molecules, new potential biomarkers for prognosis and recurrence after treatment. Mucins were purified from healthy individuals and patients with colon cancer and their O-glycosylation patterns were determined by mass spectrometry. The obtained data showed an important decrease in the level of expression of sialylated core 3 based O-glycans in tumors correlated with an increase in sialylated core 1 structures. No correlation was established between stages of the tumor samples and mucin O-glycosylation. However, with the notable exception of sialyl Tn antigens, tumors with recurrence presented a milder alteration of glycosylation profile than tumors without recurrence. These results suggest that mucin O-glycans from tumors with recurrence might mimic a healthier physiological situation, hence deceiving the immune defense system. We confirmed an increased expression of a core 3 sialyl-Lex hexasaccharide in tumors of patients without any recurrence during the first 3 years after resection of the tumor, which appeared to compete with its sulfo-Lex counterpart in normal tissue. We demonstrated a significant decrease of expression of Gal-3-O-sulfotransferases together with small variations of α2,3-sialyltransferases expression levels that could explain the inversion of ratio for these two sugar motifs. Expression of DMBT1, a mucin-like, was highly increased in early stages of colon carcinoma and a high expression in normal mucosa of patients seemed to be correlated with a poor prognosis. In conclusion, our work demonstrated for the first time a possible correlation between mucin O-glycosylation patterns in the resected tumor of patients and the risk of recurrence. This study highlights specific pattern of mucin alterations during malignant transformation and progression of colon cancer. These findings might prove valuable as prognostic tools orienting the cure to be given to patients after resection
Ceberio, Marie-Hélène. "Syndrome de Torre et Muir : à propos d'une observation : revue des 46 observations de la littérature." Bordeaux 2, 1989. http://www.theses.fr/1989BOR25337.
Full textChetanneau, Alain. "Optimisation de l'immunoscintigraphie tumorale par de nouvelles approches méthodologiques utilisant l'anti-antigène carcinoembryonnaire." Nantes, 1992. http://www.theses.fr/1992NANT08VS.
Full textMethlin, Bertrand. "Données de l'examen scanographique dans l'évaluation des récidives locales des cancers du rectum et du sigmoïde traités initialement par chirurgie : à propos de 27 cas." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR1M024.
Full textGaston, Julie. "Induction de la voie IFN/STAT1 dans le cancer du sein sous chimiothérapie : étude mécanistique." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCB041/document.
Full textBreast cancer is the most frequent cancer in women. Despite chemotherapy, tumor response is often incomplete, and relapse is frequently observed. The aim of this work was to analyze the molecular mechanisms triggered in breast cancer cells in response to chemotherapy. These events were modeled using breast cancer patient-derived xenografts (PDXs), i.e. samples of human tumors engrafted into immunodeficient mice. Transcriptomic analysis highlighted precocious induction of the interferon (IFN)/STAT1 pathway in response to chemotherapy only in tumors responding to treatment, suggesting that this molecular signature could be used as a biomarker of the initial response. The activation of this pathway persisted in residual tumor cells, suggesting that it could also play a role in cancer recurrence observed in all PDX models that we investigated. Functional deciphering of the IFN/STAT1 pathway was performed in vitro by stimulating breast cancer cell lines with mafosfamide, the active principle of a classical chemotherapy inducing DNA damage. In some cell lines, e.g. MCF-7 cells, this treatment triggered the upregulation of type I IFN expression leading to cell-autonomous activation of the IFN/STAT1 signaling pathway. A mechanistic study revealed the involvement of the DNA sensor STING (stimulator of IFN genes) upstream of the IFN production, mimicking what happens in immune cells facing pathogen infection. Individual silencing of various actors of the STING/IFN/STAT1 pathway potentiated genotoxic treatment efficacy, indicating that this cascade may be involved in tumor resistance to treatment. In summary, our study suggests that cell-intrinsic activation of STING/IFN/STAT1 pathway in response to chemotherapy could play a dual role: first, it may be used as a predictive biomarker of initial response; second, it may act as a resistance mechanism to treatment. This work opens new prognostic and therapeutic perspectives for the clinical management of breast cancer
Fabry, Valérie. "Les deuxièmes tumeurs malignes de l'enfant : à propos de 14 observations." Bordeaux 2, 2001. http://www.theses.fr/2001BOR23008.
Full textPerrouin-Verbe, Marie-Aimée. "Valeur pronostique du remodelage de la signalisation calcique dans le cancer de la prostate." Thesis, Brest, 2017. http://www.theses.fr/2017BRES0159.
Full textProstate cancer (PCa) is the most common malignancy in men 50 years and older and the second leading cause of cancerrelated death in men in developed countries. Widespread PSA screening has allowed an increase rate of localised PCa at diagnosis, managed by curative treatment such as radical prostatectomy (RP), or active surveillance (AS) in case of indolent disease. However, 30% of patients experience biochemical relapse during the 10 years following RP. Moreover, 30% of patients in AS are undervalued and present a significant disease. It is therefore necessary to identify new prognostic biomarkers capable of distinguishing indolent from significant tumours, and capable to accurately predict the risk of recurrence after curative treatment. Objectives: To evaluate the potential prognostic value of calcium signalling remodeling in PCa: 1) To assess the impact of calcium signalling remodelling on tumour aggressiveness 2) To assess the prognostic value of calcium signalling remodelling on systemic recurrence after RP. 3) To assess the contribution of calcium signaling remodelling in the selection of patients for active surveillance (AS). Methods 1) Study of the expression (immunohistochemistry) of TRPC1, TRPC4, Orai1 and STIM1 at different stages of PCa, and assessment of the prognostic value of this expression on recurrence in clinically localised PCa (CLC) in a cohort of 238 patients. 2) Case-control study on a cohort of 112 patients who underwent RP for CLC. Evaluation of the prognostic impact of the expression (immunohistochemistry) of 10 actors of calcium signalling (Orai1, Orai2, Orai3, STIM1, STIM2, TRPV5 and V6, TRPC1 and C4, TRPM8) on systemic recurrence after RP. 3) From a cohort of patients who underwent RP for low-risk PCa, were enrolled patients potentially eligible for AS at the time of diagnosis (n = 71). We evaluated the impact of calcium signalling remodelling in patients selection for AS (immunohistochemical staining on biopsies and prostate specimens: TRPC1 and C4, TRPV5 and V6, Orai1, STIM1).Results 1) In CLC, an overexpression of TRPC1 was associated with a decreased proliferation, and with a higher rate of biochemical progression-free survival (independent of usual prognostic markers). 2) Overexpression of TRPC4, TRPV5 and TRPV6 was associated with a lower risk of systemic recurrence after RP, independently of the prognostic factors currently used. 3) More intense staining of TRPV6 on biopsies was associated with a significant PCa, for which a curative treatment is required. Conclusion: On RP specimens, overexpression of TRPC1, TRPC4, TRPV5 and TRPV6 has an independent prognostic value and is associated with a lower risk of recurrence after RP. On prostate biopsies, TRPV6 allows to distinguish indolent from significant disease in patients with low-risk PCa
Seisen, Thomas. "Caractérisation de l’évolution des tumeurs urothéliales de la voie excrétrice urinaire supérieure après néphrourétérectomie totale A Systematic Review and Meta-analysis of Clinicopathologic Factors Linked to Intravesical Recurrence After Radical Nephroureterectomy to Treat Upper Tract Urothelial Carcinoma Effectiveness of Adjuvant Chemotherapy After Radical Nephroureterectomy for Locally Advanced and/or Positive Regional Lymph Node Upper Tract Urothelial Carcinoma." Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS486.
Full textAlthough radical nephroureterectomy remains currently considered as the standard of care for upper tract urothelial carcinoma (UTUC), there is a high risk of postoperative recurrence, which can occur either within the bladder or the surgical field and/or distant sites. The aim of our study was to investigate and better characterize these events. With regards to intra-vesical recurrence, a systematic review and meta-analysis was conducted to identify all significant clinical and pathological predictors. Moreover, an additional cohort study suggested that, from a biological perspective, such an event could be related to the presence of the FGFR3 mutation detected from urinary DNA. With regards to locoregional and/or distant recurrence, a central pathology review of UTUC patients with pT3 disease showed that there may be a prognostic interest in stratifying these individuals based on the extent of local invasion (pT3a vs. pT3b) to propose a risk-adapted strategy for postoperative management. Nonetheless, an US hospital-based registry study revealed that all patients with pT3-T4 and/or pN+ UTUC could derive an overall survival benefit from adjuvant chemotherapy. Finally, a preliminary analysis from a large French cohort of UTUC patients established that the 2 mm TMA technique can be used to assess the prognostic interest of determining PDL1 expression on tumor cells with 28.8 antibody and PD-1 expression on TILs with NAT105 antibody, both at the 5% threshold for positivity
Righini, Christian. "Etude des altérations épigénétiques dans les cancers des voies aéro-digestives supérieures (VADS) : implication dans le diagnostic, le suivi et le pronostic des patients." Université Joseph Fourier (Grenoble), 2006. http://www.theses.fr/2006GRE10277.
Full textStudies in UADTs tumors biology have been performed to better understand the carcinogenesis and to find biomarkers that could have a prognostic value or an early detection benefit. In carcinogenesis of tumors of the UADTs, 2 main types of modifications have been identified at the cellular level: genetic and epigenetic alterations. Our work focused on methylation of tumor suppressor genes in tumors and saliva. Sixteen genes have thus been analyzed; we were then able to define a 6-gene methylation panel with a good correlation between results obtained in tumors and those obtained in saliva. Our results confirm the benefit of saliva analysis in cancer patients after treatment: persistence or reappearance of gene methylation precedes clinically evident tumor relapse. On the other hand, the presence of methylations in tumors has no prognostic value
Meddeb, Romain. "Détection et quantification de l'ADN circulant : conditions pré-analytiques et applications pour le suivi des patients atteints de cancer colorectal." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTT037.
Full textThe analysis of circulating DNA has already demonstrated its potential in oncology as a biomarker for diagnosis, prognosis of relapses, detection of minimal residual disease, monitoring tumor clonal evolution and acquired resistances, as well as a theranostic tool in predicting the efficacy of some targeted therapies. But apart from the recent approval by the FDA of two tests for the detection of EGFR gene alterations in circulating tumor DNA before the initiation of treatment with Gefitinib or Afatinib in non-small cell lung cancer, no application of circulating DNA in oncology has yet been validated in clinical practice. One of the main hurdles that has been well identified for several years, and therefore one of the main challenges for the scientific and medical community, is the harmonization and standardization of pre-analytical procedures for sample processing and associated analytical techniques. In addition, it seems that other recent issues have emerged, including the need for procedures adapted to particular clinical applications. Still with the aim of optimizing the analysis of circulating DNA, one of the two objectives of my thesis project was to study the influence of pre-analytical and demographic parameters on the quantification of circulating nuclear and mitochondrial DNA on a cohort of 104 healthy individuals and 118 patients with metastatic colorectal cancer. In particular, we showed a significant difference between healthy individuals with an age below and above or equal to the median value (Mann-Whitney U test, Pvalue = 0.009), and between females and males (Whitney U test, Pvalue = 0.048). Multivariate analysis of these data then confirmed that age was the only predictive factor of a high nuclear-related circulating DNA concentration in our healthy individuals’ cohort (Odd Ratio = 2.41, Pvalue = 0.033). All other parameters studied did not show any influence on the quantification of nuclear or mitochondrial circulating DNA in healthy individuals or patients with metastatic colorectal cancer. In a second step, aware of the difficulties observed in the literature regarding the lack of harmonization and heterogeneity of results, we proposed a more complete and detailed guideline than that proposed by El Messaoudi et al in 2015, but mainly adapted to different clinical applications in oncology and other fields such as organ transplantation and non-invasive prenatal testing. Based on our own observations and a non-exhaustive review of the literature, this guideline is only validated for the analysis of nuclear circulating DNA. Specificities relative to the study of mitochondrial circulating DNA are now established and require a guideline entirely dedicated to its analysis. The second objective of my thesis project was to evaluate the prognostic value of circulating DNA analysis in the early detection of recurrences in patients curatively treated for stage II/III colorectal cancer, as part of a prospective multicentric clinical study called "DNAcir" promoted by the Limoges University Hospital. At this stage, the results of this project are preliminary and therefore the hypothesis made in this manuscript should be taken with caution. In addition, this thesis work provide a recent review of the literature in the field of circulating DNA and their clinical applications, while providing new knowledge on pre-analytical treatment of samples and also opening up new avenues for reflection, particularly on the potential effect of surgery on the quantification of circulating DNA, or even adjuvant therapy if necessary
Zozaya, Carole. "Déterminants des trajectoires de détresse pendant la première année qui suit l'annonce d'un cancer primitif ou récidivant." Thesis, Bordeaux 2, 2011. http://www.theses.fr/2011BOR21811/document.
Full textIntroduction. Emotional distress is a significant problem for patients with cancer experience and particularly recurrence. We aim to (a) identify distinct trajectories of psychological distress in the first year after primitive cancer diagnosis or recurrence treated with chimiotherapy and (b) explore possible determinants of these trajectories, that is personal (neuroticism, optimism) and transactional (control, coping, social support, quality of relation) characteristics.Method. 286 patients were assessed after diagnosis in the reentry phase of treatment and in the survivorship phase: 3, 6 and 9 months after the diagnosis announce. Personality (neuroticism and optimism) and transactional variables (coping, social support and quality of relation) have been measured. Psychological distress was assessed with HAD scale.Results. There were four trajectories of distress: a group “resilient” (40.1%) that experienced no or low distress, a group “delayed” (37.63%) that experienced no signifcative distress but levels of depression and emotional distress, which tend to increase slightly and linearly during the first three months and remain stable and below the thresholds beyond, a group “recovery” (19.58%) that experienced signifcative distress, which tend to increase slightly and linearly during the first three months and remain stable and below the thresholds beyond, and a group “chronic” (2.77%) that experienced chronic distress. Variables of Personality and transactional variables could distinguish the distress trajectories. No significant results have been found with perceived control Conclusion. Most patients were not distressed or only temporarily so, in response to primitive cancer or recurrence. However, emotional distress of patients has not decreased during the first year after primitive cancer diagnosis or recurrence
Albran, Abraham Youbi. "Les conisations : étude rétrospective de 247 cas traités à l'hôpital St André entre 1990 et 1996." Bordeaux 2, 2000. http://www.theses.fr/2000BOR2M022.
Full textMahjoub, Aimen Al. "Cholangiocarcinome peri-hilaire : incidence, prise en charge et survie." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMC425/document.
Full textCholangiocarcinoma (CC) is a malignant tumor with a poor prognosis. Its treatment is based on surgical resection. It accounts for 3% of all digestive cancers and is the second primary tumor of the liver, in frequency, after hepatocellular carcinoma. The average age is 70 years old with male predominance. At present intra and extrahepatic cholangiocarcinomas are distinguished. Survival rate is less than 5% at 5 years in all stages. 60 to 70% are tumors of the biliary convergence also called Klatskin tumors.The aim of this work was to answer persistent questions about peri-hilar cholangiocarcinoma (PHCC) by applying different statistical methods on different databases and review of the literature.The three main axes of this work are articulated according to the temporality of management, from the diagnosis to the postoperative follow-up, going through the preoperative setting.The first axis is based on a local database (registry of digestive cancer of Calvados). The results show that PHCC accounts for only one third of cholangiocarcinomas in the general population, that its incidence rate is stable with a decrease in incidence, although not significant, in women having PHCC and that female gender is a negative prognostic factor for 5-year survival. The second axis concerned the preoperative management of patients, including preoperative optimization of the remaining liver by biliary drainage. This work is based on two Meta-analyzes. It made it possible to highlight the superiority of the radiological way in the endoscopic way concerning the complications related to the procedure but on the other hand, the absence of significant difference on the morbi-mortality post hepatic resection, the survival at 5 years, the recurrence free survival and the rate of dissemination related to the procedure when the procedures are studied in intent to treat. Our results suggest that a poor choice of pathway for achieving biliary drainage leads to repeated failures that influence tumor recurrence and thus survival. The third axis was concerned with the prognostic factors of immediate morbidity and mortality after hepatic resection from a European database (base of the French association of surgery). The results show that body surface area ≥ 1.82 m², hyperbilirubinemia > 50 μmol / l and right hepatic resection are independent predictors influencing post-operative mortality at 30 days
Lubrano, Jean. "Facteurs pronostiques et thérapeutiques après traitement chirurgical de l'adénocarcinome du pancréas céphalique." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMC422/document.
Full textThe third World Day on pancreatic cancer took place the 17th November 2016. This late consideration is due to the duality between his relative scarcity and a dreadful prognosis.Its aggressiveness is underlined by a mortality rate equal to its incidence. Ranked 10th on cancer-related localization and 4th on cancer-related mortality, he will become the second cause of cancer-related deaths in 2020 just behind pulmonary cancer and before colorectal cancer. 5-yr survival rate is 5% irrespective of the stage.Pancreatic ductal adenocarcinoma is the most frequent form (80% of exocrine pancreatic tumors). He is localized in cephalic pancreas in 2/3 of cases.Although pancreatic resection provides the only chance of long-term survival, no more than 20% of patients will be eligible for surgery in curative intent leading to a 5-yr survival rate of 10 to 20%. Pancreaticoduodenectomy for pancreatic head, neck and uncinated process is still a challenging procedure. In the study of the French Surgery Association, mortality and morbidity rate were respectively 3.8% and 54%. Postoperative pancreatic fistula is considered as the Achilles’ heel of pancreaticoduodenectomy and is associated with increased post-operative mortality. Postoperative pancreatic fistula generates significant costs and prolonged hospital stay. Thus postoperative pancreatic fistula is the corner stone of patient’s prognosis improvement.The aim of this study on operated pancreatic ductal adenocarcinoma was to analyze several factors influencing morbidity and mortality.- Before surgery, by testing the impact of body surface area in a cohort of patients.- During surgery, by conducting a meta-analysis on reconstruction methods for pancreatic anastomosis.- After surgery, by evaluating the influence of severe complications on survival and recurrence.We show that the use of various surgical refinements, such as type of pancreatic anastomoses, are equivocal to decrease postoperative pancreatic fistula rate and that performing randomized controlled trials will be difficult. In contrast, the search for patient’s factors leading to postoperative pancreatic fistula seems to be the promising approach. This is of major concern as we demonstrated the causal link between the occurrence of severe postoperative complications and survival or recurrence. This work highlights the need for surgeons to distinguish during preoperative consultation high-risk patients in order to select the best candidates suitable for surgery as well as to give them a full and frank information ethically necessary for free and informed consent