不匹配修复缺陷及其与胃癌患者的组织病理特征的关系
Thi Hong Chuyen Nguyen1, Tran Bao Song Nguyen2, Thanh Phuc Nguyen3
1Department of Oncology, University of Medicine and Pharmacy, Hue University, Hue, Vietnam.
Nagoya journal of medical science
|April 21, 2025
概括
缺陷不匹配修复 (dMMR) 在胃癌中不常见,影响12.8%的患者. 这种状态与特定的微观特征相关,如肠子类型和差异化瘤,影响其预测价值.
科学领域:
- 在瘤学瘤学.
- 胃肠病学 胃肠病学
- 病理学 病理学 病理学
背景情况:
- 胃癌是一种常见的恶性瘤,结果不佳.
- 缺陷不匹配修复 (dMMR) 作为系统治疗的关键预后和预测生物标志物.
- 在全球范围内存在dMMR频率的变化及其与组织病理特征的相关性.
研究的目的:
- 确定胃癌患者中dMMR的患病率.
- 调查dMMR状态与特定基因病理特征之间的关联.
- 评估微观特征对胃癌中微观卫星不稳定性的预测效用.
主要方法:
- 一项涉及226名胃癌患者的横截面研究.
- 免疫组织化学染色被用来评估不匹配的修复蛋白质表达.
- 缺少不匹配修复蛋白质定义了dMMR状态.
主要成果:
- 在胃癌中,dMMR的总比率为12.8%.
- 在肠子亚型 (OR=4.767),管状/乳头腺癌 (OR=5.25),粘膜腺癌 (OR=6.19) 和差异化瘤 (OR=3.24) 中,dMMR的患病率显著增加.
- 没有观察到与瘤位置修改的劳伦分类或粘膜分泌形态的显著关联.
结论:
- 缺陷的不匹配修复是胃癌的一个罕见发现.
- 组织病理特征,包括细胞分化和劳伦分类亚型,影响dMMR状态对微卫星不稳定的预测能力.
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