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Articoli di riviste sul tema "Négatif dominant"
Dereure, O. "Syndrome hyper-IgE : mutations à effet dominant négatif de STAT-3". Annales de Dermatologie et de Vénéréologie 135, n. 5 (maggio 2008): 432. http://dx.doi.org/10.1016/j.annder.2008.02.010.
Testo completoMaione, L., P. Bouchard, F. Albarel, R. Bobe, R. Pivonello, A. Colao, T. Brue et al. "La mutation p.Arg31Cys de GNRH1 est responsable d’une forme autosomique dominante d’hypogonadisme hypogonadotrope par un effet dominant négatif". Annales d'Endocrinologie 73, n. 4 (settembre 2012): 278. http://dx.doi.org/10.1016/j.ando.2012.07.131.
Testo completoLaponce, Jean. "Le profil de l’électeur : trop de gauche? trop de droite? trop seul et trop face?" Notes de recherche, n. 29 (19 novembre 2008): 161–84. http://dx.doi.org/10.7202/040021ar.
Testo completoSwalus, Pierre, Ghislain Carlier e Jean-Pierre Renard. "Feedback en cours d'apprentissage de tâches motrices et leur perception par les élèves". STAPS 12, n. 24 (1991): 23–35. http://dx.doi.org/10.3406/staps.1991.1205.
Testo completoBousquet, M., N. Dastugue e P. Brousset. "Identifiation d’une nouvelle protéine de fusion PAX5-ELN dans des leucémies aiguës lymphoblastiques B qui joue un rôle de dominant négatif sur PAX5 sauvage". Annales de Pathologie 26 (novembre 2006): 111. http://dx.doi.org/10.1016/s0242-6498(06)78399-7.
Testo completoDridi, Walid, Kada Krabchi, Macoura Gadji, Josée Lavoie, Marc Bronsard, Raouf Fetni e Régen Drouin. "Activité dominante négative des protéines p53 mutées". médecine/sciences 22, n. 3 (marzo 2006): 301–7. http://dx.doi.org/10.1051/medsci/2006223301.
Testo completoBarbet, Anthony F., N. Tebele, S. Semu, T. Peter, L. Wassink e Suman M. Mahan. "Diagnostic sérologique de la cowdriose au Zimbabwe. Problèmes et perspectives". Revue d’élevage et de médecine vétérinaire des pays tropicaux 46, n. 1-2 (1 gennaio 1993): 121. http://dx.doi.org/10.19182/remvt.9347.
Testo completoBibeau, Gilles. "L'Afrique, terre imaginaire du sida. La subversion du discours scientifique par le jeu des fantasmes". Anthropologie et Sociétés 15, n. 2-3 (10 settembre 2003): 125–47. http://dx.doi.org/10.7202/015179ar.
Testo completoGreifenhagen, Franz Volker. "La série télévisée Little Mosque on the Prairie1 de Zarqa Nawaz et le discours de l’authenticité musulmane2". Thème 19, n. 2 (1 maggio 2014): 151–72. http://dx.doi.org/10.7202/1024732ar.
Testo completoLanglois, Denis. "Résistances novatrices de peuples autochtones face au pillage de leurs territoires et de leurs ressources en Amérique latine". Recherches amérindiennes au Québec 44, n. 2-3 (1 giugno 2015): 143–52. http://dx.doi.org/10.7202/1030975ar.
Testo completoTesi sul tema "Négatif dominant"
Bernier, Cynthia. "Élaboration et caractérisation d'un mutant dominant négatif de TRPC6". Mémoire, Université de Sherbrooke, 2005. http://savoirs.usherbrooke.ca/handle/11143/3797.
Testo completoCarette, Diane. "Etude des mécanismes moléculaires responsables de l'effet dominant négatif de la connexine 33". Paris 11, 2010. http://www.theses.fr/2010PA11T008.
Testo completoDijon, Marilyne. "Rôle d'ikaros dans l'érythropoïèse humaine : surexpression d'un dominant-négatif d'ikaros par une approche lentivirale". Aix-Marseille 2, 2007. http://www.theses.fr/2007AIX20668.
Testo completoHematopoiesis is a complex process which is regulated by expression of many transcription factors, such as Ikaros. This gene encodes several isoformes by alternative splicing : some of them without functional DNA binding act as dominant-negative. Lack of Ikaros induced defects of lymphopoiesis, myelopoiesis and erythropoiesis, however, critical steps regulated by Ikaros are largely unknown. To study further Ikaros involvement in erythropoiesis, we overexpressed a dominant-negative isoform, Ikaros 6, using lentiviral vector. This type of vector, derived from HIV-1, is main tool to tranfer gene into hematopoietic stem cells without alter multipotence properties. We developed a lentiviral vector containing two genes controlled by two different promoters to detect transduced HSC. However, problems of gene expression showed unfunctionally construct in our experimental system. Study of Ikaros in human erythropoiesis will be realised with basal lentiviral vector. Overexpression of dominant-negatif, Ikaros 6, displayed a defect of erythroid cell number and an increase of cell death. Inhibited function of Ikaros also induced a decrease of erythroid gene expression and hemoglobinisation. This work underlined important role of Ikaros in human erythropoiesis by regulating of erythroid gene expression
Le, May Cédric. "Rôle du récepteur nucléaire PPAR alpha dans la régulation du métabolisme énergétique hépatique et l'effet transcriptionnel des acides gras". Paris 7, 2004. http://www.theses.fr/2004PA077111.
Testo completoRoubille, François. "Cardioprotection au cours de l'ischémie-reperfusion myocardique chez la souris : modèle transgénique Daxx-dominant négatif et postconditionnement ischémique". Montpellier 2, 2008. http://www.theses.fr/2008MON20172.
Testo completoDelhommeau, François. "Modulation de la télomérase dans les lignées leucémiques et les progéniteurs hématopoi͏̈étiques humains". Paris 7, 2003. http://www.theses.fr/2003PA077151.
Testo completoBillant, Olivier. "Utilisation de la levure S. cerevisiae pour déchiffrer les mécanismes de l'effet dominant-négatif affectant la famille de gènes suppresseurs de tumeurs p53, p63 et p73". Thesis, Brest, 2016. http://www.theses.fr/2016BRES0055/document.
Testo completoP53 is a ubiquitous tumor suppressor gene that prevents damaged cells from proliferating. Following DNA damage or cellular stress, p53 induces a cell cycle arrest and initiates an attempt to repair the lesions. If the repair fails, p53 triggers the apoptosis of the cell. p53 shares a high homology with two other tumor suppressor genes: p63 and p73. Together they form a family of transcription factors, which are actively protecting the organism from tumor development. This defense network is enriched by multiple N-terminal and C-terminal isoforms of p53, p63 and p73. The loss of p53, p63 and p73 tumor suppression function is a key step of cancer progression. Mutants of p53 and isoforms of p53, p63 and p73 often exhibit a dominant-negative behavior resulting in the loss of p53 tumor suppression activity. However, the extent of the dominant-negative effect within p53 family remains unclear. The mechanisms behind the dominant-negative effect are also debated due to the recent emergence of a prion-like hypothesis. Finally, the dominant-negative effect of p53 family members could be involved in other pathologies such as p63-related developmental syndromes During this PhD, I studied the functional consequences of hotspot mutations of p53 and of the main isoforms of the p53 family on the transcriptional activity of p53, p63 and p73. Using the naïve eukaryotic model S. cerevisiae we have demonstrated that the dominant-negative effect of mutants and isoforms of the p53 family relies on the formation of hetero-tetramers between functional and non-functional members of the family but not on a prion-like mechanism. In addition, certain p53 mutants are able to interfere with p63 and p73 isoforms though a mechanism that is only partially based on tetramerization. Of note, we obtained preliminary results suggesting that mutants of p63, which are involved in EEC, ADULT and NSCL1 developmental syndromes, behave like dominant-negative hotspot mutants of p53. The identification of the mechanisms of the dominant-negative effect occurring within p53 family could lead to new therapeutic targets both in cancer and in rare developmental syndromes.1 EEC : ectrodactyly, ectodermal dysplasia and cleft lip/palate syndrome, ADULT : acro-dermato-ungual-lacrimal-tooth syndrome, NSCL : non-syndromic cleft lip
Khourieh, Joëlle. "Novel heterozygous STAT3 mutations clarify the molecular basis of the hyper IgE syndrome". Thesis, Sorbonne Paris Cité, 2018. https://wo.app.u-paris.fr/cgi-bin/WebObjects/TheseWeb.woa/wa/show?t=2177&f=15771.
Testo completoTo date STAT3 is the only gene in which variants in coding regions are known to cause Autosomal Dominant Hyper-Immunoglobulin E Syndrome (AD-HIES). Yet, the genetic etiology of 5% of individuals meeting the clinical criteria for AD-HIES remains unknown. Combining whole exome sequencing and genetic linkage analysis, we identified the first deep intronic heterozygous STAT3 mutation, c.1282-89C>T, causing AD-HIES in seven relatives. This mutation creates a new exon in the STAT3 cDNA (D427ins17). We also identified two novel nonsense STAT3 mutation; c.1552C>T leading to a truncated protein with a stop codon in the STAT3 linker domain (R518*) in a patient with AD-HIES, and c.2091delT leading to a truncated protein with a stop codon with a frameshift in STAT3 transactivation domain (D698Tfs*9) in two relatives with tuberculosis. Upon over-expression, the three mutant STAT3 proteins are loss of function in terms of tyrosine phosphorylation, DNA-binding, and transcriptional activity. In patient's B cells, R518* and D698Tfs*9 alleles are not expressed whereas we found by mass spectrometry that the D427ins17 allele only represents 5 to 20% of total STAT3 in the patient's cells. Activation of patient's leucocytes demonstrated a poor respond to STAT3-dependent cytokines, like other patients with AD-HIES. Upon overexpression, we show that D427ins17 and D698Tfs*9 are equally dominant-negative alleles, whereas R518* allele is neutral. This work emphasis the importance of intron sequencing in the establishment of genetic diagnostics in AD-HIES. Moreover, the study of the D427ins17 allele suggests that AD-HIES-causing mutations can exert their negative-dominance even when expressed at significantly lower levels than the wild-type protein. On the other hand, the study of R518* allele shed the light on haploinsufficiency as another possible mechanism causing AD-HIES; however, the identification and characterization of more nonsense mutations is necessary before drawing any firm conclusions
Saunier, Elise. "Etude par transgenèse ciblée de l'effet de la forme dominant-négatif du récepteur de la prolactine sur le développement mammaire normal et tumoral". Paris 7, 2003. http://www.theses.fr/2003PA077111.
Testo completoAcunzo, Julie. "Thérapie génique des adénomes hypophysaires humains in vitro : Evaluation du rôle du récepteur somatostatinergique sst2 et d'un dominant négatif du facteur de transcription Pitx2". Aix-Marseille 2, 2009. http://www.theses.fr/2009AIX20696.
Testo completo