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Статті в журналах з теми "Inhibiteurs de point de contrôle immunologique"
Kostine, Marie, Aurélien Marabelle, Thierry Schaeverbeke, and Maria Kfoury. "Les limites des inhibiteurs de points de contrôle immunitaire et la gestion de leur toxicité." médecine/sciences 35, no. 12 (December 2019): 949–56. http://dx.doi.org/10.1051/medsci/2019191.
Повний текст джерелаDilies, A. C., L. Diaz, C. Lesouder, P. Guilpain, J. L. Faillie, P. Palassin, and A. Maria. "Lymphohistiocytose hémophagocytaire associée aux inhibiteurs du point de contrôle immunologique : étude de pharmacovigilance." La Revue de Médecine Interne 42 (June 2021): A42—A43. http://dx.doi.org/10.1016/j.revmed.2021.03.242.
Повний текст джерелаDieu-Nosjean, Marie-Caroline, and Christophe Caux. "La biologie des cibles PD-1 et CTLA-4 et la question des biomarqueurs." médecine/sciences 35, no. 12 (December 2019): 957–65. http://dx.doi.org/10.1051/medsci/2019192.
Повний текст джерелаBatton, Romain, Paul Matte, Michael Aoun, Auréline Lefèvre, and Pierre-Emmanuel Joubert. "Inhibiteurs de point de contrôle immunitaire." médecine/sciences 40, no. 6-7 (June 2024): 581–83. http://dx.doi.org/10.1051/medsci/2024076.
Повний текст джерелаBonnefoy, Nathalie, Daniel Olive, and Bernard Vanhove. "Les futures générations d’anticorps modulateurs des points de contrôle de la réponse immunitaire." médecine/sciences 35, no. 12 (December 2019): 966–74. http://dx.doi.org/10.1051/medsci/2019193.
Повний текст джерелаFaviez, G., E. Bousquet, A. Rabeau, I. Rouquette, S. Collot, C. Goumarre, N. Meyer, G. Prevot, and J. Mazieres. "Granulomatose sarcoïdosique survenant sous inhibiteurs de point de contrôle immunitaire." Revue des Maladies Respiratoires 35, no. 9 (November 2018): 963–67. http://dx.doi.org/10.1016/j.rmr.2018.08.003.
Повний текст джерелаGeorges, M. "Toxicité pulmonaire de l’immunothérapie par les inhibiteurs de point de contrôle." Revue des Maladies Respiratoires Actualités 9, no. 3 (September 2017): 469–74. http://dx.doi.org/10.1016/s1877-1203(17)30086-1.
Повний текст джерелаCoustal, C., X. Quantin, F. Roubille, J. Adda, D. Tosi, X. Ayrignac, D. Hillaire-Buys, et al. "Myocardites aiguës sous inhibiteurs du check-point immunologique : expérience du groupe Montpellier-Oncologie-Immunologie (MONCIMMUN)." La Revue de Médecine Interne 40 (December 2019): A58. http://dx.doi.org/10.1016/j.revmed.2019.10.054.
Повний текст джерелаCriquet, Emilie, Kévin Didier, Amelie Servettaz, Laetitia Visseaux, Marine Ehret, and Florent Grange. "Effets secondaires cutanés des inhibiteurs de point de contrôle immunitaire utilisés en oncologie : étude prospective." Annales de Dermatologie et de Vénéréologie - FMC 1, no. 8 (December 2021): A176. http://dx.doi.org/10.1016/j.fander.2021.09.080.
Повний текст джерелаWeill, A., F. Brunet-Possenti, S. Léonard-Louis, J. Delyon, B. Bonniaud, G. Jeudy, V. Descamps, et al. "Myopathies inflammatoires induites par les inhibiteurs de point de contrôle immunitaire : spectre clinique et traitements." La Revue de Médecine Interne 42 (June 2021): A40. http://dx.doi.org/10.1016/j.revmed.2021.03.239.
Повний текст джерелаДисертації з теми "Inhibiteurs de point de contrôle immunologique"
Karaboué, Abdoulaye. "Rôle du système circadien dans le contrôle de la survie des patients traités par immunothérapie pour cancer : Analyse des mécanismes impliqués." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASQ019.
Повний текст джерелаA better understanding of physiopathological mechanisms and better-targeted treatments, according to the characteristics of the patient and his/her tumor, are the focus of intensive research, within the framework of precision and personalized cancer medicine. Precision medicine is now beginning to integrate molecular circadian clocks, which generate periodic oscillations of around 24 h in metabolism, cell proliferation and death, as well as responses to toxic or therapeutic drugs. Several experimental, clinical and epidemiological studies have demonstrated the important role of the circadian timing system in all stages of carcinogenesis, from initiation and promotion to progression and metastatic dissemination. The circadian timing system also influences tolerance and efficacy of anti-cancer treatments, both in experimental models and in patients. After my initial observation of an apparent great homogeneity in the temporal responses to cancer immunotherapy in my clinical practice, I have been investigating the role of dosing time and circadian rhythms in the efficacy of immune checkpoint inhibitors. Indeed, immunotherapy has emerged as a standard anticancer treatment for several cancer types in the last decade. However, not all patients benefit from it, and only a small number are cured. My current thesis project results first highlighted the role of the time of administration of immune checkpoint inhibitors on their efficacy and tolerability in patients with non-small cell lung cancer, with a four-fold increase in survival of patients treated in the morning compared with the afternoon or evening. I then showed, in a first meta-analysis and then in a review, that morning administration of immunotherapy doubled on average the survival and progression-free survival of patients with eight different types of cancer. I then propose the main circadian mechanisms that can influence the efficacy of immunotherapy over the course of 24 hours. Finally, my work shows that morning administration of an immune checkpoint inhibitor also doubles its efficacy compared with afternoon administration, despite its combination with immunosuppressive chemotherapy. Moreover, the administration times of the first four immunochemotherapy cycles recapitulate the chrono-immunotherapeutic effect of the treatment over its full duration the vast entire. In conclusion, the discovery of a major impact of the time of administration of cancer immunotherapy on its efficacy is in favor of between-patient synchronization of the circadian mechanisms of its pharmacodynamics vis-à-vis immune system cells. The characterization of between-patient differences in circadian synchronization could further enable personalized optimization of cancer chronoimmunotherapy
Branchoux, Sébastien. "Critères de substitution de la survie globale chez les patients atteints de cancer métastatique traités par inhibiteurs de points de contrôle immunologiques." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0253.
Повний текст джерелаAdvanced cancer treatment has been recently revolutionized by the development of the immune-checkpoint inhibitors (ICI). These immunomodulatory monoclonal antibodies are designed to either elicit a novel anti-tumoral immune response or revitalize an existing one to fight against cancer. Patients with cancer are living longer due to these improved therapies. Powering a study for overall survival (OS), the gold standard primary endpoint in randomized controlled trial (RCT) of anticancer drugs is becoming increasingly challenging. Therefore, it is of importance to identify and validate novel surrogate endpoints (SE) for OS in ICI-treated patients for expediting patients’ access to innovative and potentially life extending medicines. We first systematically reviewed published studies reporting on an association between alternative endpoints and OS in ICI-treated patients. Then, based on the learnings from this systematic literature review and from the specificity of the mechanism of action of ICIs, we evaluated the surrogacy properties of an emerging intermediate endpoint in solid tumors, namely time to next treatment (TNT), in ICI-treated patients with advanced melanoma and renal cell carcinoma (aRCC), through recent innovative statistical models for the validation of SE. Based on the results of these surrogacy analyses, TNT seems a promising SE for OS in RCTs of ICI-treated patients with advanced melanoma and aRCC. We encourage sponsors of RCTs of ICI to carefully collect the date of subsequent systemic treatment, so that surrogacy analyses could consequently be performed with a larger number of RCTs in order to confirm our findings
Cavelier, Cindy. "Etude du point de contrôle des dommages à l'ADN." Toulouse 3, 2010. http://thesesups.ups-tlse.fr/889/.
Повний текст джерелаAcute Myeloid Leukemia (AML) is a clonal hematopoietic disorder characterized by the accumulation of malignant hematopoietic progenitor cells with an impaired myeloid differentiation program. The molecular basis of AML is thought to be associated with the acquisition of at least two types of critical cooperating mutations occurring at the hematopoietic stem or committed progenitors level. Class I mutations, affecting tyrosine kinases receptors and key components of cellular signalling pathways, confer growth and proliferative advantages. They are associated with class II mutations, affecting transcription factors thus leading to impaired normal differentiation program. In this study, we were first interested in CHK1, a protein kinase involved in preserving genome integrity by playing a critical role at the intra-S and G2/M cell cycle checkpoint activated in DNA damage response. We have shown that activation of CHK1 was sustained in immature cell lines, leading to a more stringent G2/M checkpoint in response to DNA damage, thus impairing illegitimate entry into mitosis in presence of unrepaired DNA damage and participating in their resistance to genotoxic agents. In a second study, we have demonstrated an abnormal activation of the CHK1 kinase in a large panel of AML patient samples, associated with the presence of constitutive DNA damage in absence of genotoxic stress. Moreover, the level of CHK1 activation is significantly correlated with unfavourable cytogenetic samples, particularly with complex karyotype phenotype. CHK1 inhibition by the pharmacological inhibitor UCN-01 or by RNA interference was found to decrease the clonogenic capacity of the AML progenitors, and to induce a chemosensitisation to ara-C. In contrast, growth of normal hematopoietic progenitors, which do not display constitutive DNA damage, was not impaired by such treatment. Overall, all these results underline the dual role of CHK1 kinase in AML pathology in the chemoresistance of immature leukemic cells and in the establishment of the genomic instability observed in complex karyotype AML. These findings could have major pharmacologic consequences, because they open a therapeutic window for new compounds targeting the cell cycle checkpoint machinery in AML and more particularly in the worst prognostic group with complex karyotype
Soussan, Sarah. "B lymphocytes and autoantibodies in immune-related adverse events following immune checkpoint inhibitors in cancer patients." Electronic Thesis or Diss., Sorbonne université, 2024. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2024SORUS022.pdf.
Повний текст джерелаImmune checkpoints inhibitors (ICI) have revolutionized the treatment of previously incurable malignancies. Unfortunately, the use of ICI also induces a bystander breakdown of peripheral tolerance leading to immune related Adverse Events (irAEs) in 30-90% of treated patients, drastically reducing quality of life and requiring therapy dose reduction or discontinuation. As ICI directly target T cells, they have been considered the main culprit for irAEs. Nevertheless, T cells cannot fully explain adverse events, and the role of B cells and their associated mechanisms have not been characterized. We therefore studied the involvement of peripheral B-cell compartment in irAEs, using both phenotypic and functional approaches, in two cohorts of solid cancer patients treated with anti-PD-1 and/or anti-CTLA-4 monoclonal antibodies. Deep phenotyping of B-cell subsets throughout the treatment and at the onset of irAEs has been performed by multi-parametric spectral flow cytometry. Subsequently, to analyze the functions of B-cell subsets, notably their ability to produce antibodies, we set-up a B-cell culture system allowing in vitro differentiation of B cells into antibody-secreting cells. This gave us the opportunity to analyze the antibody production by circulating B cells and their association with irAEs occurence. The screening of circulating B cells phenotype and function was conducted alongside the evaluation of the serum and plasma reactivity of cancer patients by complementary approaches (ELISA, Western Blot, Immunofluorescence assays). We found that, before treatment, patients that develop ICI-induced irAEs exhibit a significantly lower expression on B cell subsets of the FcγRIIB, CD85j and LAIR-1 inhibitory receptors in melanoma patients and higher expression of the CD95 and CXCR5, respectively activating and lymphoid organs re-circulatory markers in lung cancer patients. In addition, increased in baseline abundance of hyper-activated IgD- memory B cell subset or plasmablasts precursor were observed in patients that will undergo irAEs. Moreover, a part of irAEs patients exhibit baseline or ICI-induce circulating autoantibodies which could be directed against the related tissue of irAEs occurrence. Indeed, patients experiencing cardiac/muscular irAEs demonstrated autoantibodies directed against cardiac tissues and well-defined cardiac/muscle antigens. Finally, IgG derived from cardiac/muscular irAEs patients bound to human cardiomyocytes and perturbed the calcium kinetic and the contractibility of cardiac spheroids. These findings highlight a predisposition of irAEs incidence in patients with baseline highly activated and differentiated circulating B cells associated with autoantibody production. Overall, these results support the potential role of the humoral adaptative immunity in the mechanisms of ICI-induced irAEs
Dupaty, Léa. "Evaluation in vivo de protéines immunorégulatrices dérivées de CTLA-4 et de PD-L1 pour leur capacité à inhiber les réponses immunitaires dans le contexte de la thérapie génique musculaire par AAV." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMR133/document.
Повний текст джерелаGene therapy consist into introducing genetic material into cells to treat genetic disorders. Most gene therapies use viral vectors to carry the gene within target cells. In case of monogenic disorders, adeno-associated viruses (AAV) has become a vector of choice because of its lack of pathogenicity, its large tropism and its capacity to transduce quiescent cells. The use of AAV is approved in Europe to treat a rare lysosomal storage disease and has recently been approved by the FDA to treat a genetic cause of blindness. However, most clinical trials face immune responses directed against AAV components which may be highly immunogenic. This deleterious immunogenicity often lead to the trial failure. In addition, transgenic protein can also be immunogenic, aimaing to the destruction of transduced cells and ultimatly to gene therapy failure. In clinic, immunosuppressive drug remain the only option to counteract unwanted immune responses. These drugs possess infectious and tumorigenic side effects, therefore strategies aiming to rather capable to induce tolerance toward the transgenic protein are being developped and needed. The objectif of this work was to implement a new strategy aiming to study the immunoregulatory and tolerogenic effect of fusion proteins derived from CTLA-4 and PD-L1. We used a murin model recapitulating the immunes responses induced by an AAV coding for an immunogenic model protein, ovalbumin (Ova) presented in previous studies by our group and others. Then, we synthesized AAV coding for our newly designed immunoregulatory protein and injected them into mice along with AAV-Ova. This strategy of vectorized immunoregulation (VIR) allowed to evaluate the intrinsic capacity of each individual proteins to modulate immune responses against Ova directly in vivo. Eventually, this work allow to 1) assess the benefits and limits of the VIR strategy, 2) the deletrious long-term effects of CTLA-4/Fc on central and peripheral Tregs in mice, 3) to demonstrate the interest of new molecules specifically derived from PD-L1/Fc over the immune tolerance through the long-term persistance of Ova transgene
Частини книг з теми "Inhibiteurs de point de contrôle immunologique"
Faury, Stéphane, and Jérôme Foucaud. "Immunothérapie spécifique, cancers et qualité de vie." In Pratiques et interventions en psychologie de la santé, 143–52. Editions des archives contemporaines, 2020. http://dx.doi.org/10.17184/eac.3192.
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