Abstract
Chlorogenic acid (1), salvianolic acid B (2), and tanshinone
IIA (3) are commonly used as chemoprotective agents for chemotherapy
in cancer patients. The present study deals with the effect of these three
compounds on cytotoxicity of doxorubicin in HepG2 cells. The results showed
that 1 and 2 reduced the cytotoxicity of doxorubicin through
scavenging ROS generated by doxorubicin in HepG2 cells. The findings suggest
that 1 and 2 could enhance the expression of SOD and decrease
that of NADPH oxidase, which resulted in the elimination of ROS. On the
contrary, 3 enhanced the cytotoxicity of doxorubicin in HepG2 cells.
Furthermore, drug interactions between doxorubicin and 3 produce
synergistic effects in HepG2 cells.
Key words
chemoprotection - chlorogenic acid - salvianolic acid B - tanshinone IIA - doxorubicin - cytotoxicity