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带透明糖蛋白的遗传变异:对生育能力和ART结果的影响
Neha Rajput1, Gagandeep Kaur Gahlay1
1Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar, Punjab 143005, India.
Mutation research. Reviews in mutation research
|September 3, 2025
概括
透明区 (ZP) 基因的遗传变异显著影响生育能力和辅助生殖技术 (ART) 的成功. 识别这些单核酸多态 (SNP) 对于诊断不孕症和改善ART结果至关重要.
科学领域:
- 生殖生物学
- 人类遗传学
- 辅助生殖技术
背景情况:
- 辅助生殖技术 (ART) 的成功严重依赖于卵细胞的健康,形态异常常常导致治疗失败.
- 透明区域 (ZP) 是一个重要的细胞外基质,它调解精子与卵子的相互作用和胚胎的保护,使其完整性对受精至关重要.
研究的目的:
- 调查单核酸多态 (SNP) 在 zona pellucida 糖蛋白基因 (hZP1-4) 对女性生育能力的影响.
- 分析这些SNP对ZP结构的功能影响以及与不孕症的潜在联系.
主要方法:
- 对hZP1,hZP2,hZP3和hZP4基因内的SNP进行了现有数据的综合元分析.
- 用于对ZP糖蛋白结构和功能的SNP作用进行功能预测.
主要成果:
- 在不孕症患者中发现了47个hZP1,17个hZP2,8个hZP3和2个hZP4,主要在ZP结构领域.
- 预测的功能影响包括ZP糖蛋白分泌受损,交叉连接和纤维形成,可能导致空综合征 (EFS) 或ZP异常等情况.
- ZP结构的缺陷可能会对卵细胞活力,ART成功率和卵泡生成产生负面影响.
结论:
- 对于出现ART失败的妇女,特别是那些有ZP异常的妇女,建议对ZP基因SNP进行基因查.
- 需要对ZP2的N端域进行进一步的研究,因为未检测到的SNP可能会影响形态正常卵细胞中的精子相互作用.
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