全外体测序揭示了神经内分泌新生体中生殖线变化的高患病率
Vineeth Sukrithan1, Isaiah Boateng1, Sandya Liyanarachchi1
11The Ohio State University, Columbus, OH.
概括
近一半的神经内分泌瘤 (NEN) 患者有生殖系变异. 生殖线MUTYH (gMUTYH) 变化与高瘤突变负担和免疫透相关,表明对免疫检查点抑制 (ICI) 的潜在反应.
科学领域:
- 遗传学和基因组学 遗传学和基因组学
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
背景情况:
- 对神经内分泌新生瘤 (NENs) 的生殖线敏感性在已知的综合征条件之外还不太清楚.
- 家庭聚类和恶性瘤的同时发生表明未知的生殖线倾向于NENs.
研究的目的:
- 为了确定对神经内分泌瘤 (NENs) 的新生菌线倾向.
- 调查生殖系变异的临床影响,特别是在免疫反应和治疗方面.
主要方法:
- 来自144名NEN患者的生殖线和体质DNA的全外体序列测序.
- 在具有生殖线MUTYH (gMUTYH) 变化的样本上进行基因本体学分析和多重免疫光 (mIF).
- 用免疫检查点抑制 (ICI) 治疗gMUTYH改变的患者的临床数据的抽象.
主要成果:
- 在78%的患者中发现了致病性/可能致病性生殖系变异,其中45%的患者在57个基因中存在致病性变异.
- 在MEN1,MUTYH,PKD1,ATP4A和PAH中发现了反复发生的变化.
- 在一组患者中,生殖线MUTYH (gMUTYH) 变化与高瘤突变负担,免疫透和对ICI的强有力的反应有关.
结论:
- 大约45%的NEN患者具有病原性生殖系变异,可通过全外因子测序检测到.
- 生殖线MUTYH (gMUTYH) 变化与高瘤突变负担和免疫透有关,这表明ICI具有潜在的治疗益处.
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