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Literatura académica sobre el tema "Toxine cholérique"
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Tesis sobre el tema "Toxine cholérique"
Faure, Dominique. "Affinité des toxines cholérique et tétanique pour les gangliosides". Lyon 1, 1992. http://www.theses.fr/1992LYO10026.
Texto completoMaresca, Marc. "Mécanismes moléculaires et cellulaires des entéropathies humaines : Effets d'une toxine bactérienne (cholérique), d'une toxine virale (glycoprotéine d'enveloppe du virus du SIDA) et de trois toxines fongiques (ochratoxine A, désoxynivalénol, patuline) sur un modèle d'épithélium intestinal reconstitué". Aix-Marseille 3, 2003. http://www.theses.fr/2003AIX30007.
Texto completoPathogenic micro-organisms and/or their toxins present in human alimentation cause enteropathy by perturbation of intestinal function. We used HT-29-D4 cells to caracterize the cellular mechanisms involved in enteropathy associated with cholera toxin (CT), HIV-1 and three mycotoxins : ochratoxin A, deoxynivalenol and patulin. We showed that these toxins perturbate barrier and transport functions of HT-29-D4 cells. Lipid rafts or related microdomains that are enriched in cholesterol, glycosphingolipids and signal transduction proteins are involved in toxin-induced enteropathy, either as receptors, for CT and gp120, or as cellular targets of the toxin's action, in the case of ochratoxin A
Pedoussaut, Sylvie. "Immunisation sérique et mucosale contre la toxine cholérique à l'aide de peptides synthétiques : mise en évidence d'un héptapeptide immunogénique en absence de porteur". Paris 5, 1988. http://www.theses.fr/1988PA05P615.
Texto completoGirard, Fabienne. "Amplification de la réponse immunitaire chez le poulet par la toxine cholérique, les ISCOMS et l'HSP70 d'Eimeria acervulina". Tours, 1999. http://www.theses.fr/1999TOUR3801.
Texto completoBeignon, Anne-Sophie. "Exploitation du système immunitaire de la peau pour l'administration non-invasive de vaccins". Université Louis Pasteur (Strasbourg) (1971-2008), 2002. http://www.theses.fr/2002STR13068.
Texto completoFermin, Zelandia. "Etude des propriétés immunostimulatrices des agonistes bêta-adrénergiques dans l'immunisation nasale". Tours, 1997. http://www.theses.fr/1997TOUR3809.
Texto completoGarnier, Cyril. "Etude de certains aspects du développement de projections corticofuges par la technique de neurotransplantation". Poitiers, 1997. http://www.theses.fr/1997POIT2259.
Texto completoMerlen, Clémence. "Rôle de l'endocytose et du compartiment endosomal dans la cytotoxicité de la toxine du choléra : implication de la cathepsine D". Paris 11, 2007. http://www.theses.fr/2007PA114805.
Texto completoCholera toxin (CT) is produced by Vibrio cholerae and is the major virulence factor responsible for the massive secretory diarrhea of infected humans. CT is composed of one activating A subunit and five identical B subunits. The CTA subunit is comprised of two domains termed the A1 and A2 peptides. For full cytotoxicity, a production of A1 peptide must occur intracellularly. We demonstrated that proteolysis of cholera toxin within endosomes required an acidic pH and was sensitive to pepstatin A, an inhibitor of aspartic acid proteases. Hydrolysates of cholera toxin at acidic pH by cathepsin D displayed ADP-ribosyltransferase activity towards exogenous Gsa. Gsa and ARF proteins were immunodetected in rat liver endosomes prepared various times after toxin injection. Internalized CT displayed an ADP-ribosyltransferase activity towards endogenous Gsa protein. These data identify endosomal cathepsin D as a key enzyme responsible for cholera toxin cytotoxic activation
Luci, Carmelo. "Réponses lymphocytaires T cytotoxiques et cellules dendritiques génitales : potentiel vaccinal de la sous-unité B de la toxine cholérique". Nice, 2006. http://www.theses.fr/2006NICE4039.
Texto completoThe vaginal mucosa constitutes the major site of infection by numerous pathogens responsible for sexually-transmitted diseases. Mucosal vaccination represents an attractive strategy to stimulate the local immune system (secretory immunoglobulins IgA, cytotoxic T lymphocytes) to reduce pathogen replication and spreading. In that context, the aim of this study was to evaluate the immunogenicity of a prototype vaccine, administered by vaginal route, composed with the non toxic B subunit of cholera toxin (CTB) linked to heterologous antigens. We have shown, that vaginal immunisation with CTB co-linked with ovalbumin or a epitope derived from the HIV-1 gp41 glycoprotein, induces genital cytotoxic responses (CTLs). Furthermore, we have demonstrated that a population of dendritic cells (DCs), expressing the CD11b marker, was responsible for the initiation of those responses. Finally, we have shown that depletion of Langerhans cells (LCs), which represent the DC subset located in the vaginal epithelium, increase vaginal cytotoxic responses suggesting that they had a regulatory activity onto intravaginally-induced cytotoxic T cells responses. The adjuvant properties of CTB by vaginal route might be explained by the local production of chemokines and by the increase of frequency of DCs in the vaginal tissue. These data suggest that the in vivo targeting of specific DC subsets might have an impact on the discovery of more potent vaccine formulations
Çuburu, Nicolas. "Évaluation de la voie sublinguale comme site de vaccination muqueuse et d'immunothérapie". Nice, 2007. http://www.theses.fr/2007NICE4007.
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