Doxorubicin hydrochloride

Doxorubicin (Adriamycin) is an antibiotic agent that inhibits DNA topoisomerase II and induces DNA damage and apoptosis. (In Vitro) :Doxorubicin hydrochloride (1-8 μM; 24 and 48 hours) decreases the viability of MCF-10F, MCF-7 and MDA-MB-231 cells in a time- and dose-dependent manner.Doxorubicin hydrochloride (1 μM; 3 and 24 hours) results in Hct-116 human colon carcinoma cells reduction in G0/G1 phase and accumulation in G2 phase.Doxorubicin hydrochloride (1 μM for MCF-10F and MDA-MB-231 cells, 4 μM for MCF-7 cells; 48 hours) induces apoptosis by upregulating Bax, caspase-8 and caspase-3 and downregulation of Bcl-2 protein expression. (In Vivo) :Treatment with Doxorubicin (2 mg/kg) or Zoledronic acid (100 μg/kg) alone does not statistically significantly decrease final tumor volume compared with saline. Mice treated with Doxorubicin plus Zoledronic acid have statistically significantly smaller final tumor volumes than those treated with Doxorubicin alone.