LEUKEMIA VIRUS-TUMOR CELL RELATIONSHIP

I. SPONTANEOUS ELIMINATION OF VIRUS FROM SARCOMA ORIGINALLY ASSOCIATED WITH FRIEND VIRUS

Abstract

A transplantable mouse sarcoma first found in a mouse inoculated with the Friend leukemia virus, which in its early transplantation generations contained the virus, became free of the virus with the progress of serial transplantations. It is suggested that this sarcoma is different from the sarcoma produced by transplantation of the leukemic tissues of the Friend disease.