Antiproliferative activity of ecteinascidin 743 is dependent upon transcription-coupled nucleotide-excision repair

被引：0

作者：

Yuji Takebayashi

Philippe Pourquier

Drazen B. Zimonjic

Kentaro Nakayama

Steffen Emmert

Takahiro Ueda

Yoshimasa Urasaki

Atsuko Kanzaki

Shin-ichi Akiyama

Nicholas Popescu

Kenneth H. Kraemer

Yves Pommier

机构：

[1] Laboratory of Molecular Pharmacology,Department of Pathology

[2] National Cancer Institute,Department of Cancer Chemotherapy

[3] NIH,undefined

[4] Laboratory of Experimental Carcinogenesis,undefined

[5] NIH,undefined

[6] Basic Research Laboratory,undefined

[7] Center for Cancer Research,undefined

[8] NIH,undefined

[9] Institute of Development,undefined

[10] Aging and Cancer,undefined

[11] Tohoku University,undefined

[12] Institute for Cancer Research,undefined

[13] Faculty of Medicine,undefined

[14] Kagoshima University,undefined

来源：

Nature Medicine | 2001年 / 7卷

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D O I：

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学科分类号：

摘要：

While investigating the novel anticancer drug ecteinascidin 743 (Et743), a natural marine product isolated from the Caribbean sea squirt, we discovered a new cell-killing mechanism mediated by DNA nucleotide excision repair (NER). A cancer cell line selected for resistance to Et743 had chromosome alterations in a region that included the gene implicated in the hereditary disease xeroderma pigmentosum (XPG, also known as Ercc5). Complementation with wild-type XPG restored the drug sensitivity. Xeroderma pigmentosum cells deficient in the NER genes XPG, XPA, XPD or XPF were resistant to Et743, and sensitivity was restored by complementation with wild-type genes. Moreover, studies of cells deficient in XPC or in the genes implicated in Cockayne syndrome (CSA and CSB) indicated that the drug sensitivity is specifically dependent on the transcription-coupled pathway of NER. We found that Et743 interacts with the transcription-coupled NER machinery to induce lethal DNA strand breaks.

引用

页码：961 / 966

页数：5

共 81 条

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