title: Regulation of human T-lymphocyte gene expression by interleukin 2: immediate-response genes include the proto-oncogene c-myb.
abstract: Antigen-stimulated human T lymphocytes must bind the immunoregulatory hormone interleukin 2 (IL-2) if they are to transit from the G1 to the S phase of the cell cycle. Indirect methods, such as the measurement of thymidine uptake rates, were previously the only means available for exploring the mechanism of action of IL-2. Several cDNA clones have been isolated which are expressed subsequent to IL-2 binding, and the expression of two of these genes. Tact52 and Tact75, is regulated directly at the level of transcription; expression of the proto-oncogene c-myb is also regulated directly by IL-2 binding. These genes thus constitute a set which is coordinately regulated in the course of the transition from G1 to S phase of human T lymphocytes, and their expression depends on IL-2 binding.
mesh_terms: D002453:Cell Cycle; D002478:Cells, Cultured; D003001:Cloning, Molecular; D004247:DNA / Q000032:analysis; D005809:Genes, Regulator / Q000187:drug effects*; D006801:Humans; D007376:Interleukin-2 / Q000378:metabolism / Q000494:pharmacology*; D008213:Lymphocyte Activation; D000090063:Proto-Oncogene Mas; D011519:Proto-Oncogenes / Q000187:drug effects*; D011971:Receptors, Immunologic / Q000378:metabolism; D015375:Receptors, Interleukin-2; D013601:T-Lymphocytes / Q000166:cytology / Q000187:drug effects / Q000276:immunology*; D014158:Transcription, Genetic
chemical_list: D007376:Interleukin-2; C000715470:MAS1 protein, human; D000090063:Proto-Oncogene Mas; D011971:Receptors, Immunologic; D015375:Receptors, Interleukin-2; D004247:DNA