跨临床试验的全基因组测序确定了与化疗诱导的外围神经病变相关的GPR68的罕见编码变异
Zia Khan1, Min Jung2, Megan Crow2
1Genentech, 1 DNA Way, South San Francisco, 94080, USA. khanz12@gene.com.
Genome medicine
|June 21, 2023
概括
对4900名癌症患者的基因分析揭示了GRID2和GPR68的新型变异,与化疗诱导的周围神经病变 (CIPN) 相关. 这一发现为预防这种常见的剂量限制性毒性开辟了新的途径.
科学领域:
- 基因组学就是基因组学.
- 药物基因组学 药物基因组学
- 神经科学是一个神经科学.
背景情况:
- 剂量限制性毒性显著影响药物的益处/风险.
- 化疗诱导的周围神经病变 (CIPN) 是一种常见的,剂量限制的神经毒性.
- 对CIPN缺乏有效的预防策略.
研究的目的:
- 识别与发展CIPN.风险相关的遗传变异.
- 探索使用全基因组测序 (WGS) 预防CIPN的治疗假设.
主要方法:
- 在14个随机对照试验中使用4900名欧洲祖先癌症患者的生殖线WGS数据进行了一项遗传研究.
- 分析了在接受纳和基化疗的患者中发生的时间至第一次外围神经病变事件.
- 进行了基因水平负担分析,并分析了来自人类背部根的snRNA-seq数据.
主要成果:
- 在GRID2中确定了一个与CIPN发病相关的低频变异的位置 (rs17020773,p=2.03×10−8).
- 在GPR68中发现了与CIPN风险增加相关的罕见编码变异 (p=1.59×10−6).
- 发现的GPR68变异改变了预测的阿雷斯结合动机,GPR68在感官感受器中高度表达.
结论:
- 在GRID2和GPR68的遗传变异影响CIPN风险.
- 感觉神经元中的GPR68为CIPN预防提供了潜在的治疗点.
- 对GPR68的进一步研究可能会产生新的策略,以减轻化疗引起的神经损伤.
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