绘制非法典拼接变体的地图:解密异常男性不孕症隐藏的遗传结构
Kuokuo Li1,2,3, Yuge Chen1,2,3, Dongdong Tang1,2,3
1Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, Anhui, 230022, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 31, 2025
概括
非正规拼接变体 (NCSVs) 最近被确定为男性不孕症的重要原因. 这些遗传变异破坏了正常的基因功能,导致了以前无法解释的男性生殖问题的病例.
科学领域:
- 遗传学 遗传学 是一个
- 生殖生物学 生殖生物学
- 分子生物学分子生物学
背景情况:
- 已知佳能拼接变体是导致遗传疾病的贡献者.
- 非正规拼接变体 (NCSV) 在男性不孕症中的作用在很大程度上尚未被探索.
- NCSVs发生在标准拼接部位之外,可以影响基因功能.
研究的目的:
- 调查NCSV在男性不孕症中的患病率和临床意义.
- 识别与遗传性和异常性男性不孕症相关的新型NCSV.
- 确定NCSVs在男性不孕症中的病因作用.
主要方法:
- 报告的遗传性男性不孕症变体的全面分析.
- 应用一个拼接变异的分析策略来识别新的NCSVs.
- 对异常男性不孕症患者的基因分析.
- 使用TMF1 NCSV敲入鼠标模型进行功能验证.
主要成果:
- 确定了17种新的NCSV,使NCSV已知的贡献增加了53.13%.
- 在男性不孕症中,NCSV占所有已识别的拼接变异的28.99%.
- 在患有异常男性不孕症的患者中发现了13种经过验证的NCSV.
- 一种致病性TMF1 NCSV (c.2859+4A>G) 导致精子运动率降低和形态缺陷,在小鼠模型中复制.
结论:
- 在男性不孕症中,NCSV 是一个重要的,以前被低估的病因因素.
- 这项研究为男性不孕症中NCSVs提供了第一个全面的景观.
- NCSV可能会解释目前缺乏遗传诊断的男性不孕症病例的一部分.
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