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肿瘤发生中的关键 DNA 损伤途径。

Critical DNA damaging pathways in tumorigenesis.

机构信息

Department of Oncology, Mayo Clinic, Rochester, MN, 55905, USA; Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, 55905, USA; Mayo Clinic Medical Scientist Training Program, Mayo Clinic, Rochester, MN, 55905, USA.

Department of Oncology, Mayo Clinic, Rochester, MN, 55905, USA.

出版信息

Semin Cancer Biol. 2022 Oct;85:164-184. doi: 10.1016/j.semcancer.2021.04.012. Epub 2021 Apr 24.

Abstract

The acquisition of DNA damage is an early driving event in tumorigenesis. Premalignant lesions show activated DNA damage responses and inactivation of DNA damage checkpoints promotes malignant transformation. However, DNA damage is also a targetable vulnerability in cancer cells. This requires a detailed understanding of the cellular and molecular mechanisms governing DNA integrity. Here, we review current work on DNA damage in tumorigenesis. We discuss DNA double strand break repair, how repair pathways contribute to tumorigenesis, and how double strand breaks are linked to the tumor microenvironment. Next, we discuss the role of oncogenes in promoting DNA damage through replication stress. Finally, we discuss our current understanding on DNA damage in micronuclei and discuss therapies targeting these DNA damage pathways.

摘要

DNA 损伤的获得是肿瘤发生的早期驱动事件。癌前病变显示出激活的 DNA 损伤反应,而 DNA 损伤检查点的失活则促进恶性转化。然而,DNA 损伤也是癌细胞中可靶向的弱点。这需要对维持 DNA 完整性的细胞和分子机制有详细的了解。在这里,我们综述了肿瘤发生过程中 DNA 损伤的最新研究进展。我们讨论了 DNA 双链断裂修复,修复途径如何促进肿瘤发生,以及双链断裂如何与肿瘤微环境相关联。接下来,我们讨论了致癌基因在通过复制应激促进 DNA 损伤方面的作用。最后,我们讨论了我们目前对微核中 DNA 损伤的理解,并讨论了针对这些 DNA 损伤途径的治疗方法。

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Critical DNA damaging pathways in tumorigenesis.肿瘤发生中的关键 DNA 损伤途径。
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