[Inactivation of the colony forming cells in bone marrow by allogenic T-lymphocytes].
Bone marrow cells together with allogeneic cortisone-resistant thymocytes or the lymph node cells of intact mice treated with antilymphocytic T or O-antisera were transplanted to the lethally irradiated mice. The antisera eliminated the capacity of T lymphocytes to inactivate allogeneic stem cells. Cortisone-resistant thymocytes displayed a strong inactivating action. The principal role in the processes of inactivation of genetically foreign stem cells was played by T lymphocytes. B lymphocytes possessed no properties of killer cells. The presence of B lymphocytes in the population of killer cells apparently failed to serve as a determinant one for the development of inactivation processes.
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