Synthetic lethal targeting of DNA double-strand break repair deficient cells by human apurinic/apyrimidinic endonuclease inhibitors.
Synthetic lethal targeting of DNA double-strand break repair deficient cells by human apurinic/apyrimidinic endonuclease inhibitors.
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DOI:
10.1002/ijc.27512
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发表时间:
2012-11-15
影响因子:
6.4
通讯作者:
Madhusudan, Srinivasan
中科院分区:
文献类型:
--
作者:
Sultana, Rebeka;McNeill, Daniel R.;Abbotts, Rachel;Mohammed, Mohammed Z.;Zdzienicka, Malgorzata Z.;Qutob, Haitham;Seedhouse, Claire;Laughton, Charles A.;Fischer, Peter M.;Patel, Poulam M.;Wilson, David M., III;Madhusudan, Srinivasan
关键词:
An apurinic/apyrimidinic (AP) site is an obligatory cytotoxic intermediate in DNA Base Excision Repair (BER) that is processed by human AP endonuclease 1 (APE1). APE1 is essential for BER and an emerging drug target in cancer. We have isolated novel small molecule inhibitors of APE1. In the current study we have investigated the ability of APE1 inhibitors to induce synthetic lethality in a panel of DNA double strand break (DSB) repair deficient and proficient cells; a) Chinese hamster (CH) cells: BRCA2 deficient (V-C8), ATM deficient (V-E5), wild type (V79) and BRCA2 revertant (V-C8(Rev1)). b) Human cancer cells: BRCA1 deficient (MDA-MB-436), BRCA1 proficient (MCF-7), BRCA2 deficient (CAPAN-1 and HeLa SilenciX cells), BRCA2 proficient (PANC1 and control SilenciX cells). We also tested synthetic lethality (SL) in CH ovary cells expressing a dominant–negative form of APE1 (E8 cells) using ATM inhibitors and DNA-PKcs inhibitors (DSB inhibitors). APE1 inhibitors are synthetically lethal in BRCA and ATM deficient cells. APE1 inhibition resulted in accumulation of DNA DSBs and G2/M cell cycle arrest. Synthetic lethality was also demonstrated in CH cells expressing a dominant–negative form of APE1 treated with ATM or DNA-PKcs inhibitors. We conclude that APE1 is a promising synthetic lethality target in cancer.
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影响因子:
14.9
作者:
Madhusudan, S;Smart, F;Shrimpton, P;Parsons, JL;Gardiner, L;Houlbrook, S;Talbot, DC;Hammonds, T;Freemont, PA;Sternberg, MJE;Dianov, GL;Hickson, ID
通讯作者:
Hickson, ID
DOI:
10.1073/pnas.88.24.11450
发表时间:
1991-12-01
影响因子:
11.1
作者:
DEMPLE, B;HERMAN, T;CHEN, DS
通讯作者:
CHEN, DS
影响因子:
5.6
作者:
Berquist, Brian R.;McNeill, Daniel R.;Wilson, David M., III
通讯作者:
Wilson, David M., III
DOI:
10.1196/annals.1339.049
发表时间:
2005-01-01
期刊:
TUMOR PROGRESSION AND THERAPEUTIC RESISTANCE
影响因子:
--
作者:
Bindra, RS;Schaffer, PJ;Glazer, PM
通讯作者:
Glazer, PM
DOI:
10.1158/1078-0432.ccr-10-0526
发表时间:
2010-09-15
期刊:
Clinical cancer research : an official journal of the American Association for Cancer Research
影响因子:
--
作者:
Annunziata CM;O'Shaughnessy J
通讯作者:
O'Shaughnessy J