Spleen cell transfusion in the Bio-Breeding/Worcester rat. Prevention of diabetes, major histocompatibility complex restriction, and long-term persistence of transfused cells.

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Abstract
We report that transfusions of RT1u Wistar-Furth (WF) spleen cells prevented spontaneous diabetes in the RT1u BB/W rat while RT1b Buffalo rat spleen cells did not. In addition, donor origin WF T lymphocytes were detected in nondiabetic-susceptible BB/W recipients 5 mo after transfusion. Survival of donor-origin lymphocytes may provide the cellular mechanism by which major histocompatibility complex-compatible WF spleen cell transfusions prevent BB rat diabetes.