STUDIES ON THE IMMUNOLOGICAL RESPONSE TO FOREIGN TUMOR TRANSPLANTS IN THE MOUSE

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Abstract
The transfer of transplantation immunity by lymph node cells has been the subject of investigation. Transplantable tumors have been used to provoke and to measure transplantation immunity. Cells from the lymph nodes draining a tumor homograft were transferred as mince or in suspension into the peritoneum of a secondary host to confer immunity. These cells could confer immunity while the immunizing graft was undergoing breakdown during the primary, and also during the more rapid secondary, response. Cells from other nodes and from the spleen, and also whole blood or serum failed in these experiments to transfer immunity. In one combination of tumor and host, serum from immunized donors enhanced tumor growth.