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Academic literature on the topic 'Gène SAP'
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Journal articles on the topic "Gène SAP"
Germain, Laurent, and Guillaume Baechler. "La bosse des affaires et les gènes des entrepreneurs." SAY N° 1-2, no. 1 (January 1, 2020): 186–88. http://dx.doi.org/10.3917/say.001.0186.
Full textMérat, P., A. Bordas, and G. Coquerelle. "Caractéristiques de croissance, ponte et efficacité alimentaire associées au gène Sal(albinos lié au sexe) chez la poule domestique." Genetics Selection Evolution 18, no. 3 (1986): 343. http://dx.doi.org/10.1186/1297-9686-18-3-343.
Full textDereure, O. "Mutations homozygotes du gène de la desmogléine 1 et syndrome dermatite sévère, allergies multiples et fuite métabolique (syndrome SAM)." Annales de Dermatologie et de Vénéréologie 142, no. 12 (December 2015): 798–99. http://dx.doi.org/10.1016/j.annder.2015.06.001.
Full textNubukpo, P. "Dommages liés à l’alcool : et si agir sur l’environnement était aussi la clé ?" European Psychiatry 30, S2 (November 2015): S13—S14. http://dx.doi.org/10.1016/j.eurpsy.2015.09.045.
Full text"Gènes, mutations et maladies: nouveaux liens entre recherche fondamentale, industrie et clinique." Schweizer Archiv für Neurologie und Psychiatrie 149, no. 04 (August 5, 1998): 163–69. http://dx.doi.org/10.4414/sanp.1998.01044.
Full textDissertations / Theses on the topic "Gène SAP"
Bloch-Queyrat, Coralie. "Activation et inhibition de la réponse cytotoxique des cellules NK par le récepteur 2B4 : rôle de l'adaptateur SAP." Paris 6, 2007. http://www.theses.fr/2007PA066012.
Full textRelouzat, Francis Roméo. "Caractérisation moléculaire et fonctionnelle de la signalisation de Ly-9, un récepteur de la famille SLAM : régulation par l'adaptateur SAP, produit du gène du syndrome de Purtilo." Paris 5, 2006. http://www.theses.fr/2006PA05D043.
Full textXLP disease is a genetic immune dysfunction characterized by an inappropriate response to EBV infection. The product of the gene mutated in XLP, SH2D1A, also named SAP is an adaptor-like-molecule expressed in immune cells. SAP is absolutely required for the function of the SLAM family receptors. Our experiments allowed us to focus on Ly-9. We show that Ly-9 tigges a tyrosine phosphorylation signal in T and NK cells via SAP/FynT expression dependant mechanism. This signal implicate SHIP, DOK-1 and Grb2
Belbahri, Lassaad. "Clonage du gène sam-1 d'Arabidopsis thaliana dans des cellules indifférenciées de tabac : effets métaboliques et co-suppression." Compiègne, 1998. http://www.theses.fr/1998COMP1095.
Full textElleuch, Habib. "Clonage du gène sam-1 d'Arabidopsis thaliana sous contrôle du promoteur inductible salt du riz : Expression et inactivation du transgène chez les lignées cellulaires de pavot." Compiègne, 1997. http://www.theses.fr/1997COMP1054.
Full textOpium poppy (Papaver somniferum) plants are know for their production of morphinan alkaloids such as codeine and morphine. However, cell suspension cultures are unable to synthesize such metabolites. With the aim of mofifying secondary metabolism, gene transfer was performed using the sand gene from Arabidopsis thaliana under the control of the salT promoter. This promoter is inductible by osmotic stress or ABA. Four binary vectors were constructed differing from one another by the promoter sequence. One avantage of the use of an inductible promoter is that it is suposed to preserve the normal development of the cell cultures. Several putatively transformed cell lines were isolated on selective medium after co-cultivation with an Agrobacterium tumefaciens strain harboring one of the previously mentionned construct. The presence of the sam1 transgene was demontrated by PCR amplification followed by an hybridization of the amplification product with a specifie probe. The gene copy nomber was determined, varing from 1 to 4, for several transformed cell lines. Statistical analysis have confirmed that the majority of the transformed cell lines have a SAM-S activity higher than that of the untransformed cells (reaching 4 times), in absence of exogenous ABA. These data were confirmed by Northern-blots. Addition of ABA in the culture medium leads to post-transcriptionnal inactivation of the transgene, in cells transformed with the unchanged sequence of the Psalt. Deletion of the 515 bp in the 5' part of the promoter, near the ABRE, abolishes the effect of ABA
Jourdain, Marie-Laure. "Analyse phénotypique et fonctionnelle des ostéoclastes et de leurs précurseurs dans la maladie osseuse liée à la mucoviscidose Inflammation and CFTR-related bone remodeling in patients in cystic fibrosis CFTR-deficient pigs display alterations of bone microarchitecture and composition at birth Overexpression of RANKL in osteoblasts: a possible mechanism of susceptibility to bone disease in cystic fibrosis." Thesis, Reims, 2019. http://www.theses.fr/2019REIMO201.
Full textThe increasing life expectancy of patients with cystic fibrosis (CF) is associated with extra-pulmonary complications which prevalence increases with age, such as bone disease or diabetes, that impact the quality of life of CF patients. The bone deficit related to cystic fibrosis is still incompletely characterized and the understanding of the impact of CFTR (Cystic Fibrosis Transmembrane conductance Regulator) defect on bone physiology is essential to propose new therapeutic strategies. The most common mutation of CFTR, (F508del) in osteoblasts is associated with a high RANK-L/OPG ratio that may stimulate osteoclastogenesis. The aim of this work was to study the impact of CFTR defective activity on osteoclast precursors and their differentiation as well as the functional activity of CF osteoclasts. We have demonstrated that there is an overexpression of the RANK and M-CSF receptors on the surface of osteoclastic precursors derived from patients carrying the CFTR G551D mutation. Furthermore, we have revealed that the osteoclasts phenotype is strongly impacted by the F508del mutation as well as the S1P pathway, a prominent mediator for the circulation of osteoclastic precursors between blood and bone compartments. All of these data and the demonstration of a disturbed resorptive osteoclasts profile when CFTR activity is deficient suggest that there is a dysregulation of resorption and more widely of bone remodeling in CF patients
Le, Guiner Caroline. "Étude de la régulation de l'épissage des exons alternatifs K-SAM et BEK du gène codant pour le FGFR-2 : affinement du rôle nucléaire et du mode de régulation des protéines TIA-1 et TIAR." Nantes, 2003. http://www.theses.fr/2003NANT2014.
Full textAhmad, Jam Nazeer. "Study of the Expression of Genes involved in Defense pathways and Epigenetic Mechanisms in tomato infected with Stolbur Phytoplasma." Thesis, Bordeaux 2, 2011. http://www.theses.fr/2011BOR21852/document.
Full textPhytoplasma are cell wall-less, phytopathogenic bacteria belonging to the class Mollicutes. They have not been cultured in vitro and are restricted to the phloem sieve tubes. They cause hundreds of diseases in many plant species worldwide, resulting in important crop losses. Phytoplasmas are naturally transmitted by sap-sucking insects in which they multiply. They induce severe symptoms including yellowing, restricted growth, decline, as well as major flowers and fruits abnormalities.The stolbur phytoplasma infection, in particular, has been reported to strongly affect floral morphology. In tomato, two different isolates of stolbur phytoplasma, named C and PO, induce different symptoms. The stolbur PO phytoplasma-infected plants show abnormal flower development such as hypertrophied sepals, and aborted petals and stamens leading to sterility. In contrast, stolbur C phytoplasma-infected tomato have small indented leaves but nearly normal flowers, and produce fruits. We have previously shown that SlDEF, one gene involved in petal formation, was repressed in stolbur PO phytoplasma-infected tomato. However, the expression of its transcription factor, encoded by the gene FA, was unchanged or slightly up-regulated. So we hypothesized that SlDEF repression could be due to DNA methylation. To test this hypothesis, we studied the expression of DNA methylases and demethylases genes. They were in general down-regulated in stolbur PO infected tomato, which was in agreement with the hypothesis. However, the regulation of SlDEF expression could not be firmly correlated to the DNA methylation status of its promoter region. In addition, we studied the plant defense pathways activated in stolbur phytoplasma-infected tomato. To defend themselves, plants used signalling molecules like Salicylic acid (SA), Jasmonic acid (JA) and Ethylene (ET). We studied the expression of 21 SA/JA/ET regulated defense and biosynthesis genes including transcription factors in stolbur C and PO phytoplasma-infected tomato as compared to healthy ones. We also studied the effect of pre-activation of SA and JA mediated defense pathways on symptom production. Our results clearly showed that defense pathways were activated differently in stolbur C and PO phytoplasma-infected tomato. Indeed, SA ET and JA dependant pathways were activated in stolbur C-infected tomato while only SA and ET dependant pathways were activated in stolbur PO-infected plants. In addition, pre-activation of SA-dependent defense pathway by application of BTH slightly modify the evolution of disease symptoms caused by stolbur PO phytoplasma whereas no effect was observed after treatment with an analogue of JA
Champion-Arnaud, Patrick. "Partie I : Les Protéines tyrosines phosphatases : clônage et action sur la transcription. -Partie II : Le Gène de la famille des récepteurs aux facteurs de croissance des fibroblastes (FGFR-2) : contribution à l'étude du contrôle de l'épissage exclusif K-SAM/BEK." Nantes, 1992. http://www.theses.fr/1992NANT2030.
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