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Drug Interactions

Methimazole Increases Impact of P450 Suicide Gene Therapy

Published in Gene Therapy Weekly, September 14th, 2000

Methimazole (MMI) increases the therapeutic index of p450 prodrug activation-based cancer gene therapy, recent study findings show.

"The effect of the antithyroid drug MMI on cytochrome P450/P450 reductase-dependent activation of the anti-cancer prodrug cyclophosphamide (CPA) was investigated in a rat model of P450 prodrug activation-based cancer gene therapy," wrote Z.Q. Huang and colleagues, Boston University, Massachusetts. "MMI treatment decreased the expression of hepatic P450 reductase by similar to 75% but did not alter P450 reductase levels in a 9L gliosarcoma growing in vivo as a subcutaneous solid tumor."

The researchers observed that MMI...

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