Thymidine Catabolism by Normal and Leukemic Human Leukocytes*

Abstract

trifuged at 2,100 X g for 15 minutes. The sample con- tained only 3 erythrocytes per 100 leukocytes and no tumor cells. Further separation of erythrocytes and leu- kocytes was not attempted, and the sample was homoge- nized directly for enzyme assay.