A Platinum(IV) Anticancer Prodrug Targeting Nucleotide Excision Repair To Overcome Cisplatin Resistance
作者:Zhigang Wang、Zoufeng Xu、Guangyu Zhu
DOI:10.1002/anie.201608936
日期:2016.12.12
DNA damage response plays a key role not only in maintaining genome integrity but also in mediating the antitumor efficacy of DNA‐damaging antineoplastic drugs. Herein, we report the rational design and evaluation of a PtIV anticancer prodrug inhibiting nucleotide excision repair (NER), one of the most pivotal processes after the formation of cisplatin‐induced DNA damage that deactivates the drug and
DNA损伤反应不仅在维持基因组完整性方面而且在介导DNA破坏性抗肿瘤药的抗肿瘤功效中都起着关键作用。在此,我们报告了Pt IV的合理设计和评估抗癌前药抑制核苷酸切除修复(NER),这是顺铂诱导的DNA损伤形成后最关键的过程之一,该过程使药物失活并导致临床耐药。这种双重作用的前药有效进入细胞并引起DNA损伤,同时抑制NER促进细胞凋亡。与顺铂相比,前药具有较强的抗顺铂耐药性人类癌细胞增殖的能力,其生长抑制能力最多可提高88倍,并且前药的活性比顺铂和NER抑制剂的混合物高得多。我们的研究强调了在Pt诱导的DNA损伤形成后靶向下游途径的重要性,这是克服顺铂耐药性的新策略。