A human thy-1-like antigen expressed on cultured leukemic T-cells.
A human cell membrane antigen that is highly T-cell specific among a number of leukocyte cell lines was isolated from cells of a human T-cell leukemia cell line, SKW-3. In addition to the high specificity to T-cell-type cell lines, the isolated antigen showed the following characteristics: (1) It is an acidic glycoprotein of approximately 30 000 daltons that has a charge heterogeneity and probably a disulfide bond(s); (2) Its antigenicity is stable when treated with heat, acid, and various protein denaturants; (3) It is widely distributed in lymphoid and nonlymphoid tissues but is most predominant in brain. These features are similar, if not identical, to those reported for the Thy-1 antigen of mouse or rat and have raised the possibility that this cell membrane antigen may correspond to human "lymphocyte" Thy-1 antigen, the counterpart of human "brain" Thy-1 antigen.
D000951:Antigens, Neoplasm / Q000302:isolation & purification*; D000954:Antigens, Surface / Q000302:isolation & purification*; D001921:Brain / Q000276:immunology; D002460:Cell Line; D006023:Glycoproteins / Q000302:isolation & purification; D006801:Humans; D007945:Leukemia, Lymphoid / Q000276:immunology*; D008297:Male; D008970:Molecular Weight; D009928:Organ Specificity; D013601:T-Lymphocytes / Q000276:immunology*; D013737:Testis / Q000276:immunology; D018800:Thy-1 Antigens
D000951:Antigens, Neoplasm; D000954:Antigens, Surface; D006023:Glycoproteins; D018800:Thy-1 Antigens