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Fanconi anemia and the underlying causes of genomic instability.
Environmental and Molecular Mutagenesis ( IF 2.3 ) Pub Date : 2020-01-25 , DOI: 10.1002/em.22358
Julie Rageul 1 , Hyungjin Kim 1, 2
Affiliation  

Fanconi anemia (FA) is a rare genetic disorder, characterized by birth defects, progressive bone marrow failure, and a predisposition to cancer. This devastating disease is caused by germline mutations in any one of the 22 known FA genes, where the gene products are primarily responsible for the resolution of DNA interstrand cross‐links (ICLs), a type of DNA damage generally formed by cytotoxic chemotherapeutic agents. However, the identity of endogenous mutagens that generate DNA ICLs remains largely elusive. In addition, whether DNA ICLs are indeed the primary cause behind FA phenotypes is still a matter of debate. Recent genetic studies suggest that naturally occurring reactive aldehydes are a primary source of DNA damage in hematopoietic stem cells, implicating that they could play a role in genome instability and FA. Emerging lines of evidence indicate that the FA pathway constitutes a general surveillance mechanism for the genome by protecting against a variety of DNA replication stresses. Therefore, understanding the DNA repair signaling that is regulated by the FA pathway, and the types of DNA lesions underlying the FA pathophysiology is crucial for the treatment of FA and FA‐associated cancers. Here, we review recent advances in our understanding of the relationship between reactive aldehydes, bone marrow dysfunction, and FA biology in the context of signaling pathways triggered during FA‐mediated DNA repair and maintenance of the genomic integrity. Environ. Mol. Mutagen. 2020. © 2020 Wiley Periodicals, Inc.

中文翻译:

范可尼贫血和基因组不稳定的根本原因。

范可尼贫血 (FA) 是一种罕见的遗传疾病,其特征是先天缺陷、进行性骨髓衰竭和易患癌症。这种毁灭性的疾病是由 22 个已知 FA 基因中的任何一个的种系突变引起的,其中基因产物主要负责解决 DNA 链间交联 (ICL),这是一种通常由细胞毒性化学治疗剂形成的 DNA 损伤。然而,产生 DNA ICL 的内源性诱变剂的身份在很大程度上仍然难以捉摸。此外,DNA ICL 是否确实是 FA 表型背后的主要原因仍然是一个有争议的问题。最近的遗传研究表明,天然存在的反应性醛是造血干细胞 DNA 损伤的主要来源,这意味着它们可能在基因组不稳定性和 FA 中发挥作用。新出现的证据表明,FA 通路通过保护免受各种 DNA 复制压力,构成了基因组的一般监视机制。因此,了解 FA 通路调控的 DNA 修复信号,以及 FA 病理生理学基础的 DNA 病变类型对于 FA 和 FA 相关癌症的治疗至关重要。在这里,我们回顾了在 FA 介导的 DNA 修复和维持基因组完整性期间触发的信号通路背景下,我们对反应性醛、骨髓功能障碍和 FA 生物学之间关系的理解的最新进展。环境。摩尔。诱变剂。2020. © 2020 Wiley Periodicals, Inc. 因此,了解 FA 通路调控的 DNA 修复信号,以及 FA 病理生理学基础的 DNA 病变类型对于 FA 和 FA 相关癌症的治疗至关重要。在这里,我们回顾了在 FA 介导的 DNA 修复和维持基因组完整性期间触发的信号通路背景下,我们对反应性醛、骨髓功能障碍和 FA 生物学之间关系的理解的最新进展。环境。摩尔。诱变剂。2020. © 2020 Wiley Periodicals, Inc. 因此,了解 FA 通路调控的 DNA 修复信号,以及 FA 病理生理学基础的 DNA 病变类型对于 FA 和 FA 相关癌症的治疗至关重要。在这里,我们回顾了在 FA 介导的 DNA 修复和维持基因组完整性期间触发的信号通路背景下,我们对反应性醛、骨髓功能障碍和 FA 生物学之间关系的理解的最新进展。环境。摩尔。诱变剂。2020. © 2020 Wiley Periodicals, Inc. FA 介导的 DNA 修复和维持基因组完整性期间触发的信号通路背景下的骨髓功能障碍和 FA 生物学。环境。摩尔。诱变剂。2020. © 2020 Wiley Periodicals, Inc. FA 介导的 DNA 修复和维持基因组完整性期间触发的信号通路背景下的骨髓功能障碍和 FA 生物学。环境。摩尔。诱变剂。2020. © 2020 Wiley Periodicals, Inc.
更新日期:2020-01-25
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