H2AX: functional roles and potential applications.

H2AX: functional roles and potential applications.
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DOI:
10.1007/s00412-009-0234-4
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发表时间:
2009-12
期刊:
影响因子:
1.6
通讯作者:
Bonner WM
Bonner WM
中科院分区:
生物学3区
文献类型:
--
作者:
Dickey JS;Redon CE;Nakamura AJ;Baird BJ;Sedelnikova OA;Bonner WM

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在哺乳动物中诱导 DNA 双链断裂 (DSB) 后,组蛋白 H2A 变体 H2AX 在丝氨酸 139 处快速磷酸化。这种修饰形式称为 γ-H2AX,很容易用抗体识别,并可作​​为 DNA DSB 形成的敏感指示剂。本综述重点关注 γ-H2AX 检测在癌症和其他细胞应激反应中的潜在临床应用。此外,还将讨论 H2AX 在稳态和疾病中的作用。最近的工作表明,γ-H2AX 检测可能成为监测与癌症发生和肿瘤进展相关的基因毒性事件的有力工具。
Upon DNA double-strand break (DSB) induction in mammals, the histone H2A variant, H2AX, becomes rapidly phosphorylated at serine 139. This modified form, termed γ-H2AX, is easily identified with antibodies and serves as a sensitive indicator of DNA DSB formation. This review focuses on the potential clinical applications of γ-H2AX detection in cancer and in response to other cellular stresses. In addition, the role of H2AX in homeostasis and disease will be discussed. Recent work indicates that γ-H2AX detection may become a powerful tool for monitoring genotoxic events associated with cancer development and tumor progression.
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