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. 1988 Dec 15;157(2):611-7.
doi: 10.1016/s0006-291x(88)80294-8.

Protection from heat-induced protein migration and DNA repair inhibition by cycloheximide

E P Armour  1 , Y J Lee, P M Corry, M J Borrelli
Affiliations

Protection from heat-induced protein migration and DNA repair inhibition by cycloheximide

E P Armour et al. Biochem Biophys Res Commun. .

Abstract

The mechanism by which Cycloheximide (CHM) protects cells from heat induced killing has been investigated. Cycloheximide (10 micrograms/ml) added for 2 hr before and during a 3 hour heating at 43 degrees C prevented a 40% increase of heat-induced protein accumulation in the nucleus and protected cells (0.0001 vs. 0.15 surviving fraction) from heat-induced killing. Heat-induced DNA repair inhibition was also suppressed when cells were treated with CHM in the above manner. This combination of results suggests that protein accumulation in the nucleus and inhibition of DNA repair are related and these events are associated with CHM protection from heat induced cell killing.

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