Abstract
We studied the possibility of inhibition of histone deacetylases (HDAC) in the nuclear extract of HeLa cells by N1-hydroxy-N4-(pyridin-4-yl)succinamide (compound 1). Compound 1 inhibits HDAC and showed low toxicity for A-172, HepG2, HeLa, MCF-7, and Vero cells. HeLa cells were most sensitive to the compound. Increasing the interval between administration of compound 1 and the chemotherapeutic agent to 8 h led to an increase in the cytotoxic effect of cisplatin (actinomycin D) on HeLa cells. The combination of compound 1 with cisplatin (actinomycin D) reduced the cytotoxic effect of these drugs for non-tumor Vero cells.
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