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To test the role of poly(ADP-ribose) polymerase on the telomerase activity,we determined the telomerase activity in leukemic cells K562 treated withbenzamide and 4-amino 1,8 naphthalimide (NAP), the inhibitors of PARP.We observed that both the agents inhibited telomerase activity in a dose-dependent manner. The doses of benzamide and NAP that inhibited telo-merase activity to 50% of untreated control cells were 10.7 ± 0.6 mmand200 ± 7lm, respectively.
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Báo cáo khoa học: Benzamide and 4-amino 1,8 naphthalimide treatment inhibit telomerase activity by down-regulating the expression of telomerase associated protein and inhibiting the poly(ADP-ribosyl)ation of telomerase reverse transcriptase in cultured cells
