Doxorubicin affects actin assembly in vitro

In vitro experiments on actin polymerization in the presence of doxorubicin show that the rate of salt-induced actin assembly is negatively affected by the drug. The decreased amount of actin monomers keeping their ability to self-interact to give F actin (microfilaments) probably explains the reduction of assembly value. Drug action is dose-dependent and various discrepancies are explained by the limitations of the techniques used.