在人类精子发育功能障碍中识别了一种新型的灭相关基因特征
Fan Dong1,2, Yi Ma3,4, Xiang-Feng Chen5,6,7
1Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 845 Lingshan Road, Shanghai, 200135, China.
Journal of assisted reproduction and genetics
|August 8, 2023
概括
确定了两种与火花灭绝相关的基因,CASP4和GPX4,是人类精子生成功能障碍的关键参与者. 它们的表达模式和与临床因素的相关性为男性不孕症和潜在的治疗点提供了洞察力.
科学领域:
- 生殖生物学 生殖生物学
- 分子遗传学 分子遗传学
- 细胞死亡途径的细胞死亡途径.
背景情况:
- 精子生成功能障碍是男性不孕不育的重要原因之一.
- 热,一种被编程的细胞死亡途径,与各种细胞功能障碍有关.
- 在人类精子发生过程中,与热致死相关的基因 (PRG) 的特定作用仍然未被充分探索.
研究的目的:
- 为了确定与人类精子生成功能障碍相关的关键热与相关的基因 (PRGs).
- 阐明这些PRG在丸中的表达模式和功能作用.
- 探索它们作为男性不孕不育的生物标志物和精子回收的预测剂的潜力.
主要方法:
- 对33个先前报告的PRG在人类丸的发现和验证队伍中的分析.
- 在精子生成功能障碍中确定关键的差异表达PRG (PR-DEGs).
- 与临床病理学,治疗和免疫参数的相关性分析.
- 单细胞RNA测序 (scRNA-seq) 用于确定细胞类型特定的表达和机制.
主要成果:
- CASP4和GPX4被确定为关键的PR-DEG,在功能障碍中表现出相反的表达趋势.
- CASP4与约翰森分数负相关,与FSH正相关;GPX4显示相反.
- 这两种基因都显示出作为精子采集手术的预测因素的潜力,并充当免疫调节剂,与巨细胞和巨细胞透相关.
- scRNA-seq揭示了GPX4在生殖细胞中富含,随着生殖细胞的损失而减少,而CASP4主要在体细胞中,在疾病中增加了莱迪格细胞表达.
结论:
- CASP4和GPX4被确定为人类丸功能中关键的热致死相关基因.
- 这些基因在精子生成功能障碍中起着不同的作用,不同影响生殖细胞和体细胞.
- 对CASP4和GPX4的进一步研究可能会为男性不孕症提供新的诊断和治疗策略.
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