Histocompatibility studies in a closely bred colony of dogs. V. Mechanisms of cellular adaptation in long-term DL-A identical radiation chimeras.

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Abstract
20 Cooperstown beagles of known DL-A genotypes (B" dogs) were exposed to supralethal total body irradiation and received a bone marrow allograft from a DL-A identical donor (A" dog); the resulting chimeras have survived uneventfully for 882, 1466 days, with no evidence of secondary disease, and have been tolerant to kidney and skin allografts obtained from the donor of marrow. Treatment of "A" dogs with serum obtained from their long-term "B" chimeras had no significant effect upon the ability of the recipients to reject "B" skin allografts...