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Journal of Experimental Medicine, Vol 146, 606-610, Copyright © 1977 by Rockefeller University Press
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RD Gordon, LE Samelson and E Simpson
T-cell mediated cytotoxic responses to H-Y antigen require co- recognition of H-Y and H-2 gene products. F1 mael stimulating cells and target cells express H-Y antigen in association with both parental H-2 haplotypes. However, F1 females primed in vivo and challenged in vitro with F1 male cells lyse male target cells of F1 and only one parental H- 2 haplotype. Thus, (CBA X B10)F1 females sensitized to (CBA X B10)F1 male cells lyse (CBA X B10)F1 and CBA but not B10 male target cells, and (BALB/c X B10)F1 females sensitized to (BALB/c X B10)F1 male cells will lyse (BALB/c X B10)F1 and B10 but not BALB/c male target cells. It is suggested that this may represent an effect of immune response or suppressor genes mapping in the major histocompatibility gene complex which regulate responsiveness to H-Y antigen.
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