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减少的FANCE通过调节子宫内膜癌细胞循环进展而导致基因组不稳定性和恶性行为
Chunying Zheng1, Zhen Ren1, Hongliang Chen1
1Department of Obstetrics and Gynecology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China.
Journal of Cancer
|October 2, 2023
概括
芬科尼贫血补充组E (FANCE) 减少子宫内膜癌 (EC) 损害DNA修复,促进瘤生长和基因组不稳定. 恢复FANCE增强了DNA修复和化学抵抗,抑制了EC的进展.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 芬科尼贫血补充组E (FANCE) 在芬科尼贫血 (FA) 途径内对DNA跨链交叉连接 (ICL) 修复至关重要.
- 了解FANCE在子宫内膜癌 (EC) 中的作用对于开发向疗法至关重要.
研究的目的:
- 阐明FANCE在子宫内膜癌中的功能机制和临床意义.
- 调查FANCE表达水平对EC中的DNA修复,化学抵抗,增殖和转移的影响.
主要方法:
- 在EC组织中使用RT-PCR,西部抹杀和IHC进行FANCE表达 (RNA和蛋白质) 的定量分析.
- 通过lentiviral和siRNA技术生成具有FANCE过度表达 (OE-FANCE) 和淘汰 (FANCE-KD) 的EC细胞系.
- 评估DNA损伤修复,细胞增殖,化学抵抗,转移,细胞循环进展和瘤生长的 in vitro 和 in vivo 模型.
主要成果:
- 与正常子宫内膜相比,FANCE的表达在子宫内膜腺癌 (EAC) 中显著下调.
- 过度表达FANCE增强了ICL和双链断裂 (DSB) 修复,通过上调FA通路和同源重组 (HR) 蛋白来增加化学抵抗.
- 通过诱导G2/M细胞周期停止,FANCE抑制了EC细胞的增殖和转移,在体外和体内得到证实.
结论:
- 减少EC中的FANCE表达有助于基因组不稳定,推动癌症的发展.
- 通过维持DNA修复完整性和调节细胞周期进展,FANCE在EC中起着保护作用.
- 准FANCE或相关途径可能为子宫内膜癌提供治疗策略.
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