title: [Alpha genes of the T cell receptor: a possible implication in genetic susceptibility to multiple sclerosis].
abstract: Multiple sclerosis (MS) is a neurological disease in which 60% of patients are DR2 (versus 20% in controls). Restriction fragment length polymorphism (RFLP) associated with T cell receptor alpha-chain and beta-chain genes have been analysed in a sample of 46 MS patients and compared with those of 142 controls. The alpha-chain gene polymorphism is localized to the V-J region and consists of 3 Bgl II alleles (alpha a = 3.2 kb; alpha b = 2.9 kb; alpha c = 2.8 kb). A significant difference was found in the distribution of these three alleles since 97% of DR2 patients versus 60% in DR2 non-MS individuals were found to be homozygotes alpha a/alpha a. These results suggest the influence of T cell antigen receptor germ line repertoire on the etiopathology of this disease.
mesh_terms: D000483:Alleles; D004198:Disease Susceptibility; D005796:Genes; D006801:Humans; D009103:Multiple Sclerosis / Q000209:etiology / Q000235:genetics*; D011110:Polymorphism, Genetic; D011948:Receptors, Antigen, T-Cell / Q000235:genetics*
chemical_list: D011948:Receptors, Antigen, T-Cell
vernacular_title: Les gènes alpha du récepteur des cellules T: une possible implication dans la susceptibilité génétique à la sclérose en plaques.