Abstract
We have studied the effects of actinomycin-D (AMD) and Adriamycin (ADRM) on the repair of radiation damage in Chinese hamster cells (V79) in plateau phase growth. Suppression of potentially lethal damage repair (PLDR) was observed in the presence of non-toxic levels of AMD and minimally toxic levels of ADRM. The suppression of PLDR by AMD persisted as long as the drug was present. Removal of AMD was followed by prompt repair of potentially lethal injury suggesting that suppression of PLDR by AMD was not accompanied by fixation of injury to a non-repairable state. On the other hand, irradiated cells exposed to ADRM eventually repair potentially lethal injury in the presence of drug after an initial delay. AMD, but not ADRM, inhibited repair of sublethal radiation damage.
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Schedule a callMore From: International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine
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