Abstract
H-2-associated immune response gene(s) govern resistance to growth of a spontaneous AKR lymphoma, BW5147. The antigenic specificities recognized by the anti-BW5147 humoral response have been characterized and include: Thy-1, a T-cell differentiation antigen; gp70, a retroviral envelope protein; and several previously uncharacterized proteins, including a 78 000 molecular mass protein, p78, which is restricted to expression on BW5147 cells and five phosphoproteins with molecular masses of 33 000, 29 000, 23 000, 17 000, and 16 000. Only mice which are able to respond to Thy-1, p78, and the phosphoproteins can survive an inoculation of BW5147. Thus, resistance to BW5147 is complex and involves multiple antigens with possible roles in tumor rejection.
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