Effects of antioxidant capacity on micronucleus induction by cigarette smoke in mammalian cells

Lisinopril Can Reduce Genotoxicity of L-Asparaginase in Bone Marrow Stem Cells

BACKGROUND: Lisinopril is a medication used to lower blood pressure by inhibiting the angiotensin-converting enzyme (ACE). L-asparaginase is a chemotherapeutic agent used to treat acute lymphoblastic leukemia.    AIM: To Study the effect of lisinopril on the genotoxicity of L-asparaginase (ASNase) in bone marrow stem cells.   METHODS: Albino Swiss male mice were divided into three groups. The first group was treated with lisinopril 10 mg/kg/day for 14 days. The second group mice were injected with L-asparaginase 3000 IU/kg. The last group was treated with of lisinopril for 14 days followed with an intraperitoneal injection of L-asparaginase (ASNase) at the end of the 13th day. Genotoxicity was assessed by calculating the percentage of micronucleus (MN) and mitotic index (MI).   RESULTS:   ASNase significantly increased genotoxicity by raising the %MN and lowering % MI. When Lisinopril 10 mg/kg/day was administered no significant effect was seen. However, a significant decrease in genotoxic effects was observed when mice receiving Lisinopril were injected with 3000 IU/kg ASNase as compared the group treated with ASNase alone. This effect was manifested by decreasing %MN and increasing %MI.     CONCLUSION:  Using lisinopril for blood hypertension treatments concurrently with the cancer therapeutic agent, L- asparaginase, decreased its genotoxicity in bone marrow stem cells.