Alterations in repair of alkylating agent-induced DNA damage in polyamine-depleted human cells.

Abstract

Treatment of HeLa cells with the polyamine biosynthesis inhibitors difluoromethylornithine (DFMO) and/or methylglyoxal bis(guanylhydrazone) (MGBG) results in marked depression in levels of the cellular polyamines putrescine, spermidine and spermine. Cells in this polyamine-depleted state exhibited increased sensitivity to monofunctional alkylating agents… (More)

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