Expression of the T-cell receptor gamma-chain gene products on the surface of peripheral T cells and T-cell blasts generated by allogeneic mixed lymphocyte reaction.
The gamma-chain genes of the T-cell receptors form a family of related genes that are specifically expressed and somatically rearranged in T cells. Using poly- and monoclonal anti-gamma antibodies, we studied the cell-surface expression of the gamma-chain gene products in mouse peripheral T cells as well as in the T-cell blasts generated by allogeneic mixed lymphocyte reactions. The gamma chains are expressed in the Lyt2-,L3T4- subsets of these T-cell populations as disulfide-linked heterodimers. Whereas the electrophoretic mobility and the N-glycosylation of the spleen and lymph-node gamma chains are indistinguishable from those of the reported thymocyte gamma chain, a minor fraction of the T blasts generated by allogeneic stimulation of B10 lymph-node T cells with B10.BR spleen cells seems to express gamma chains with distinct properties. This suggests that the mixed lymphocyte culture conditions exert a selective effect on the expression of gamma chains among peripheral T-cell populations.
D000818:Animals; D000911:Antibodies, Monoclonal; D000945:Antigens, Differentiation, T-Lymphocyte; D000950:Antigens, Ly / Q000032:analysis; D000954:Antigens, Surface / Q000032:analysis; D006031:Glycosylation; D007526:Isoelectric Point; D008213:Lymphocyte Activation; D046911:Macromolecular Substances; D051379:Mice; D010446:Peptide Fragments / Q000378:metabolism*; D011948:Receptors, Antigen, T-Cell / Q000378:metabolism*; D016692:Receptors, Antigen, T-Cell, gamma-delta; D013154:Spleen / Q000276:immunology; D013601:T-Lymphocytes / Q000502:physiology*; D013950:Thymus Gland / Q000276:immunology
D000911:Antibodies, Monoclonal; D000945:Antigens, Differentiation, T-Lymphocyte; D000950:Antigens, Ly; D000954:Antigens, Surface; D046911:Macromolecular Substances; D010446:Peptide Fragments; D011948:Receptors, Antigen, T-Cell; D016692:Receptors, Antigen, T-Cell, gamma-delta