Determinations were made of glyoxalase I and glyoxalase II acitivity in the liver of mice (BDF1 and DBA2 strains) bearing sarcoma 180 and L1210 leukemia in ascites form. A progressive decrease in the both glyoxalase I and glyoxalase II activities to about 40--60% of that of the control groups was observed within the developing period 8--9 days. Test results are interpreted in the light of the postulated role of this enzyme system in cell division and in the tumor development process.
Animals Cell Division