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辐射引起的核p62水平的增加有助于染色体碎片化和染色体

Xiaojuan Yang^1,2, Ying Zhou³, Buzhe Zhang¹

¹Liver Digital Transformation Research Laboratory, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan, P.R. China.

International journal of surgery (London, England)

|June 6, 2025

概括

染色体不稳定 (CIN) 驱动癌症的进展. 辐射疗法增加了核p62,从而损害了DNA修复,导致染色体和潜在的治疗耐药性.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
遗传学是一个遗传学.

背景情况:

染色体不稳定性 (CIN) 是癌症的一个关键特征,与瘤进展,转移,免疫逃避和治疗抵抗有关.
CIN是由持续的染色体错误分离引起的,导致形积分,并通过线粒错误和DNA损伤促进瘤的发展.
已经观察到微核中的p62蛋白与线粒体相互作用,并通过招募ESCRT-III组件来破坏核膜修复.

研究的目的:

调查p62在辐射诱导的染色体改变中的作用.
探索p62影响核修复过程和辐射后染色体稳定性的机制.
确定p62积累对染色体,瘤进化和治疗耐药性的影响.

主要方法:

放射治疗后核p62水平的时间依赖性变化的观察.
核p62水平,染色体碎片化和染色体化之间的相关性分析.
假设p62对ESCRT-III组件在核信封重新密封中的抑制作用.

主要成果:

放射治疗诱导了核p62水平的时间依赖的增加.
升高的核p62与增加的染色体碎片化和染色体变相关.
在核外完整性的背景下,考虑了p62在DNA修复途径 (抑制HR,促进NHEJ) 中已知的作用.

结论:

辐射诱导的核p62积累对染色体三症至关重要.
p62可能会损害核修复过程,导致染色体不稳定.
这些发现表明p62在瘤进化中的作用和治疗耐药性需要进一步调查.

关键词:

染色体碎片化的发生.染色体三症是一种染色体三症核 p62 是一个核 p62 辐射诱导的辐射引起的辐射.

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