关于未知起源男性不孕症中的精子功能的新见解:一种多模式方法
Rita I Pacheco1, Maria I Cristo1,2, Sandra I Anjo1,2
1CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal.
Biomolecules
|October 28, 2023
概括
这项研究通过分析1114个样本中的精子功能和蛋白质组特征来调查不明来源的男性不孕症 (UOMI). 确定了特定的蛋白质变化,可能有助于未来诊断异常 (ID) 和不明原因 (UMI) 男性不孕症.
科学领域:
- 生殖医学 生殖医学
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 蛋白质组学是指蛋白质组学.
背景情况:
- 男性不孕症影响着全球大量人口,大约一半的病例是由于未知原因引起的,称为不明来源的男性不孕症 (UOMI).
- 异形性 (ID) 和不明原因的男性不孕症 (UMI) 在UOMI中代表着不同的类别,需要对潜在机制进行更深入的调查.
- 了解男性性器官的功能,代谢和蛋白质学方面对于推进UOMI的诊断和治疗至关重要.
研究的目的:
- 通过对男性性质细胞进行详细的评估,获得关于异常 (ID) 和无法解释的男性不孕症 (UMI) 的新见解.
- 通过蛋白质组分析识别与ID和UMI相关的潜在蛋白质生物标志物.
- 在寻求不孕症治疗的男性中,与精子功能,蛋白质组发现和临床结果相关联.
主要方法:
- 根据严格的标准,从寻求不孕症治疗的夫妇中的男性收集和分类了1114个精液样本,并将其纳入控制 (CTRL),ID和UMI组.
- 评估了功能参数,线粒体活动和蛋白质组概况的精子样本.
- 利用随机森林分析来识别潜在的蛋白质生物标志物,区分ID和UMI组.
主要成果:
- 与对照组和UMI患者相比,异常 (ID) 患者表现出最差的精子功能概况.
- 蛋白质组分析显示有145种不同表达的蛋白质,其中8种在ID和UMI样本中特别改变.
- SACA4和LAMB2被确定为具有潜力区分ID和UMI患者的关键蛋白质,与功能结果保持一致.
结论:
- 精子中的特定蛋白质变化,如SACA4和LAMB2,可以作为新生物标志物,用于区分来源不明的男性不孕症 (UOMI) 类型.
- 研究结果表明,精子蛋白质组分析有望改善男性不孕症的诊断和向治疗.
- 生活方式和心理因素在研究组中没有显著的变化,这表明对UOMI生物标志物的内在精子因素的关注.
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