INTERACTION OF CYTOTOXIC ANTIBIOTIC DACTYLARIN WITH GLYCOLYTIC THIOL ENZYMES IN EHRLICH ASCITES CARCINOMA CELLS

Abstract

Cytotoxic effect of dactylarin on Ehrlich ascites carcinoma cells is caused by the inhibition of some SH-dependent glycolytic enzymes, especially of hexokinase (EC 2.7.1.1), glyceraldehyde-3-phosphate dehydrogenase (EC 1.2.1.12) and 6-phosphofructokinase (EC 2.7.1.11). Dactylarin interacts with thiols, which explains its inhibitory effectiveness on the above glycolytic enzymes.