Cytostatic effect of 9-(2-phosphonomethoxyethyl) adenine (PMEA). I. Lymphatic leukemia KHP-Lw-I in Lewis rats

PMEA was administered i.p. daily on 10 consecutive days to inbred LEW rats inoculated with leukemic lymphoblastic cells KPH-Lw-I. The treatment was started 24 h after the inoculation. The observed cytostatic effects consisted in a significant prolongation of survival time associated with a suppression of the number of bone marrow leukemia cells with characteristic chromosomal marker of KPH-Lw-I leukemia as well as with a depression of the number of lymphoblasts in the blood.