作者: Marie Lipoldová , Marcela Kosařová , Alena Zajícová , Vladimír Holáň , Augustinus A. M. Hart
DOI: 10.1007/BF00172155
关键词: Biology 、 Congenic 、 Gene mapping 、 T cell 、 Allele 、 Gene 、 Genetics 、 Molecular cloning 、 Molecular biology 、 Recombinant DNA 、 Phenotype
摘要: T lymphocytes of the strain BALB/cHeA exhibit a low proliferative response to IL-2 and high anti-CD3 monoclonal antibodies, while STS/A lymphocyte these stimuli is opposite. We analyzed genetic basis this difference, using novel tool: recombinant congenic strains (RCS). Twenty BALB/c-c-STS/Dem (CcS/Dem) RCS were used, each containing different random set approximately 12.5% genes from STS remainder BALB/c. Consequently, participating in multigenic control phenotypic difference between BALB/c become separated into CcS where they can be studied individually. The distribution patterns responses are different, showing that involved. large differences individual or indicate both reactions controlled by limited number with relatively effect. dominant characteristic. It not caused larger major cell subset size, nor higher level IL-2R expression. known polymorphism Fcγ receptor 2 (Fcgr2) carrying responder Fcgr2 allele indeed responded weakly. However, as do respond immobilized anti-CD3, does not, some also responders, additional gene(s) strongly depress response. In backcross CcS-9 CcS-11, one unknown was mapped chromosome 10 near D10Mit14. mouse which carry alleles controlling allow future mapping, cloning, functional analysis study their biological effects vivo.