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Academic literature on the topic 'Récepteur IL-2'
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Journal articles on the topic "Récepteur IL-2"
Poisbeau, P. "Pharmacologie des anxiolytiques." European Psychiatry 30, S2 (November 2015): S8. http://dx.doi.org/10.1016/j.eurpsy.2015.09.032.
Full textMion, G. "Pharmacologie de la kétamine." Douleur et Analgésie 34, no. 1 (March 2021): 3–15. http://dx.doi.org/10.3166/dea-2021-0162.
Full textBarbier, Yvan, and Pierre Rasmont. "Des banques de données biogéographiques vers les banques de données biotopographiques. De nouvelles techniques pour de nouveaux enjeux." Biogéographie et phylogénie 84, no. 2 (March 11, 2004): 51–57. http://dx.doi.org/10.7202/007807ar.
Full textRavel, Jean-Marie, and Emmanuel J. M. Mignot. "Narcolepsie : une maladie auto-immune affectant un peptide de l’éveil liée à un mimétisme moléculaire avec des épitopes du virus de la grippe." Biologie Aujourd’hui 213, no. 3-4 (2019): 87–108. http://dx.doi.org/10.1051/jbio/2019026.
Full textVargas de Cristo, Sandro Sidnei, and Luis Eduardo De Souza Robaina. "Análise geomorfológica em Unidades de Conservação da Natureza: Estação Ecológica Serra Geral do Tocantins – Estados do Tocantins e da Bahia." Ateliê Geográfico 10, no. 3 (February 26, 2017): 73. http://dx.doi.org/10.5216/ag.v10i3.31162.
Full textDiocesano, Kamila Bezerra Fernandes, Aurélio Antonio Ribeiro Costa, and Glauber Moreira Leitão. "Cancer du sein multifocal/multicentrique : Profil clinique/épidémiologique et modèles immunohistochimiques parmi les foyers : Étude transversale." Revista Científica Multidisciplinar Núcleo do Conhecimento, June 16, 2020, 73–94. http://dx.doi.org/10.32749/nucleodoconhecimento.com.br/sante/multifocale-multicentrique.
Full textDuffett, Mark, Karen Choong, Jennifer Foster, Elaine Gilfoyle, Jacques Lacroix, and Deborah J. Cook. "Need for a Randomized Controlled Trial of Stress Ulcer Prophylaxis in Critically Ill Children: A Canadian Survey." Canadian Journal of Hospital Pharmacy 70, no. 4 (August 31, 2017). http://dx.doi.org/10.4212/cjhp.v70i4.1679.
Full textDissertations / Theses on the topic "Récepteur IL-2"
Guizani, Lamia. "Signalisation de l'interleukine 2 : régulation du récepteur et induction du facteur de transcription AP-1." Paris 6, 1994. http://www.theses.fr/1994PA066815.
Full textSahraoui, Yasmina. "Étude structurale et fonctionnelle du récepteur de l'interleukine 2 (IL-2R) et implication du système IL2/IL-2R dans la prolifération cellulaire des leucémies aïgues lymphoblastiques T humaines." Paris 11, 1992. http://www.theses.fr/1992PA11T004.
Full textBalard, Patricia. "Effet de la protéine Core du Virus de l'Hépatite C sur la polarisation des monocytes humains : implication de la cyclooxygénase-2 et du récepteur nucléaire PPARγ." Toulouse 3, 2007. http://www.theses.fr/2007TOU30082.
Full textOur results show that the Hepatitis C virus Core protein induces the over-expression of the cyclooxygenase-2 (COX-2) in human monocytes via NFkB and p38 MAPK activations. This COX-2 activation induces the production of prostaglandins involved in the inhibitory effect of Core on IL-12 production. We have also shown that Core protein induces the activation of the nuclear receptor PPARg. This transcriptional activity is associated with the production of PGJ2, endogenous ligand of PPARg involved in the inhibitory effect of Core on IL-12 production. Besides, our results suggest that Core induces the over-expression of the membrane receptor CD36, through a PPARg-dependant mechanism. Finally, in order to validate the involvement of PPARg in M2 polarization of human monocytes, we have studied the effect of a Th2 cytokine, IL-13. We have shown that IL-13, as Core protein, induces the overexpression of the membrane receptor CD36 through the activation of PPARg and the production of PGJ2
Agueznay, Nour El Houda. "Récepteur soluble de l'IL-2 et de l'IL-15 dans les tumeurs des voies aérodigestives supérieures : mécanismes de production, activités biologiques et rôles pronostiques." Paris 6, 2008. http://www.theses.fr/2008PA066100.
Full textMazard, Pasquier Virginie. "Le système IL-2/Récepteur de l'IL-2 : les dysfonctionnements de la voie de signalisation Jak/Stat dans le cadre de l'infection par le VIH." Paris 7, 2004. http://www.theses.fr/2004PA077128.
Full textRenand, Amédée. "La neuropiline 1 et le récepteur alpha à l’IL-2 (CD25) : expression et implication dans l’homéostasie des lymphocytes T chez l’homme dans un contexte normal ou pathologique." Thesis, Paris 11, 2011. http://www.theses.fr/2011PA11T032/document.
Full textRecent studies have shown the involvement of neuropilin 1 (Nrp1) in the control of T cell activation, and disruption of this receptor promotes aggravation of experimental autoimmune encephalitis (EAE). Through its principal ligand,semaphorin 3A (Sema-3A), Nrp1 appears to participate in an autocrine negative feedback of T cell proliferation. However, few studies have been conducted inhumans to determine when Nrp1 is expressed by T cells. Here we show that regulatory T cells (Treg) in humans do not express Nrp1, unlike murine Treg cells. In contrast, we show that Nrp1 is expressed by effector T cells after engagement with antigen, either in secondary lymphoid organs for follicular helper T cells (Tfh) interacting with B cells, either in peripheral inflammation for effector memory T cells(TEM). We conclude that this expression corresponds to a level of late activation in both cases and may control T cell activation.The study in mice il2ra-/- revealed a significant role of IL-2 receptor alpha(CD25) for the survival of Treg in vivo, but also for the differentiation of memory T cells. Only two cases of CD25 deficiency associated with autoimmune diseases have been described in humans. However, these studies do not assess at what levelCD25 is involved in T cell homeostasis. Here we provide further insight of these studies by presenting three new cases of CD25 deficiency developing autoimmune diseases like IPEX. We show that CD25 plays an active role to maintain naive and effector Treg cell populations of, and effector memory T cell populations
Poncet, Nadège. "La voie ERK1/2 : point d'intégration et de convergence des connexions entre voies de signalisation dans les cellules épithéliales de prostate normale." Phd thesis, Université Claude Bernard - Lyon I, 2010. http://tel.archives-ouvertes.fr/tel-00824334.
Full textSalavessa, Laura. "Single-molecule analysis of IL-2 receptor reveals the importance of its clustering for endocytosis and signaling in lymphocytes Shigella promotes major alteration of gut epithelial physiology and tissue invasion by shutting off host intracellular transport Stoichiometry of receptors at the plasma membrane during their endocytosis using Total Internal Reflection Fluorescent (TIRF) microscopy live imaging and single molecule tracking." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASL031.
Full textSignaling by the interleukin-2 receptor (IL-2R) is regulated by its clathrin-independent endocytosis (CIE) and subsequent degradation, while playing a critical role in immunity. Interestingly, CIE lacks a coat protein that drives pit formation, raising the question of how the CIE vesicle is initiated. Protein clustering generates forces that can induce membrane conformational changes. Notably, IL-2R has been shown to accumulate at the base of membrane protrusions, where receptors might cluster and thereby initiate the pit.To study the relevance of IL-2R clustering in its endocytosis, we generated a CRISPR-edited T cell line expressing GFP-IL-2Rᵧ and analyzed its stoichiometry at the plasma membrane, by TIRF microscopy coupled to a single-molecule endocytic tracking method. We identified distinct IL-2Rᵧ cluster populations. IL-2Rᵧ seems to reach the cell surface as a preassembled cluster to which further molecules are added, reaching an optimal cluster size that is key for its internalization. Binding of IL-2 promotes the formation of endocytic clusters and receptor uptake, highlighting the importance of clustering for CIE internalization.Moreover, we found that cholesterol depletion increases the proportion of large, non-endocytic clusters as well as IL-2R signaling. Disruption of the actin meshwork also promotes the formation of large clusters, yet it decreases IL-2R signaling. Thus, both factors regulate IL-2R endocytosis and signaling in a distinct manner. Our results provide new insights into the mechanisms regulating receptor signaling and CIE
David, Muriel. "Régulation de l'expression de la chaîne alpha 2 du récepteur de l'IL-13." Paris 6, 2002. http://www.theses.fr/2002PA066089.
Full textCarles, Michel. "IL-8 et transport épithélial alvéolaire des fluides au cours de l'Acute Lung Injury." Aix-Marseille 2, 2009. http://www.theses.fr/2009AIX20657.
Full textβ-adrenergic agonist-dependent stimulation of the lung fluid clearance is an important mechanism that protects the lung from alveolar flooding. In this study we hypothesized that critical mediators of acute lung injury (ALI), such as interleukin-8 (IL-8) and transforming growth factor-β1 (TGF-β1), could directly antagonize the epithelial response to β adrenergic agonists. Short circuit current experiments revealed that IL-8 inhibits CFTR-specific β adrenergic agonist-stimulated vectorial Cl- transport across the apical membrane of primary rat and human alveolar epithelial type II (ATII). IL-8 also significantly decreased β adrenergic agonist-stimulated cAMP production resulting in the inhibition of the CFTR promoter activity and gene expression in ATII cells. We found that the TGF-β1-dependent inhibition required IL-8 and was mediated by desensitization the β adrenergic receptor through both TGF-β1 and IL-8 signaling pathways, implicating PI-3 kinase-GRK2 complex translocation to the plasma membrane. Consistent with the in vitro results, we showed that TGF-β1 requires IL-8 to inhibit the β adrenergic agonist-stimulated fluid transport across the distal airspace epithelium in vivo in rats. In summary, the results demonstrate for the first time the importance of the PI3K signaling pathway in amplifying the IL-8-dependent inhibition of the cAMP-mediated alveolar fluid transport. This mechanism has an important clinical relevance since it may modify the way the β adrenergic agonists could be used for the treatment of ARDS