[我们研究所微卫星不稳定性/不匹配修复缺陷的分子流行病学 - 方法方面]
Lilla Maja Nádorvári1, András Kiss1, Tamás Barbai1
1Patológiai, Igazságügyi és Biztosítási Orvostani Intézet, Semmelweis Egyetem, Budapest, Hungary. timar.jozsef@med.semmelweis-univ.hu.
Magyar onkologia
|June 14, 2023
概括
不匹配修复缺陷 (dMMR) 和微卫星不稳定性 (MSI) 的患病率因种族而异. 这项在匈牙利队列中的研究发现dMMR/MSI发病率与多种癌症的TCGA数据一致,这表明免疫瘤学的最新测试指南.
科学领域:
- 在瘤学瘤学.
- 分子流行病学分子流行病学
- 癌症基因组学 癌症基因组学
背景情况:
- 不匹配修复缺陷 (dMMR) 和微卫星不稳定性 (MSI) 是癌症的关键生物标志物,在各族群中患病率各不相同.
- 了解dMMR/MSI的分子流行病学对于个性化癌症治疗和免疫治疗至关重要.
- 之前的研究表明dMMR/MSI的种族变异,需要对队列进行特定分析.
研究的目的:
- 在一个大型的,单中心的匈牙利癌症患者队列中调查dMMR/MSI的分子流行病学.
- 将dMMR/MSI的发病率与特定癌症类型的现有TCGA数据进行比较.
- 评估基于免疫组织化学 (IHC) 的dMMR和MSI测试之间的一致性.
主要方法:
- 一个大规模的匈牙利癌症患者队列的回顾性分析.
- 使用免疫组织化学 (IHC) 进行dMMR评估.
- 结果与公开可用的TCGA (癌症基因组图谱) 数据进行了比较.
- 分析了结直肠,胃和子宫内膜癌的发病率.
主要成果:
- 匈牙利队列中的dMMR/MSI发病率与结直肠,胃和子宫内膜癌的TCGA数据有很好的相关性.
- 基于免疫组织化学的dMMR检测与MSI检测相比,产生更高的发病率.
- 在被研究的人群中观察到dMMR/MSI分子流行病学中的特定模式.
结论:
- 匈牙利队列中dMMR/MSI的分子流行病学与常见癌症类型的更广泛的TCGA数据一致.
- 基于IHC的dMMR和MSI测试之间的差异需要进一步调查.
- 目前的测试指南可能需要改进,特别是对于免疫瘤学指示,以考虑观察到的发病率.
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