作为一种分子特征的表观遗传干扰在非异常非阻断性亚子精子症中的分子特征
Amir Masoud Firouzabadi1,2, Samaneh Harimi2, Parisa Heydari2,3
1Department of Biology, Ashk.C., Islamic Azad University, Ashkezar, Yazd, Iran.
American journal of men's health
|November 17, 2025
概括
表观遗传调节剂DNA甲基转移酶3B (DNMT3B) 和含指CCHC-类型13 (ZCCHC13) 显示在异形非阻断性精 (iNOA) 中表达的改变. 这些表观遗传生物标志物可能有助于诊断iNOA,并指导未来的治疗方法.
科学领域:
- 生殖生物学 生殖生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子遗传学 分子遗传学
背景情况:
- 当没有发现精子缺失的原因时,诊断为异形非阻塞性精子缺失 (iNOA).
- 表观遗传变化与精子生成功能障碍有关.
研究的目的:
- 为了比较DNA甲基转移酶 (DNMT) 1 (DNMT1),DNMT3A,DNMT3B和含有13 (ZCCHC13) 的指CCHC类型的DNA甲基转移酶 (DNMT) 1 (DNMT1),iNOA中的基因表达与阻断性亚子精子症 (OA) 的基因表达.
- 评估iNOA中这些表观遗传调节者的诊断潜力.
主要方法:
- 使用定量实时PCR分析DNMT1,DNMT3A,DNMT3B和ZCCHC13表达在60名亚精子男性 (30iNOA,30OA) 的丸组织中.
- iNOA患者被分为成功的 (iNOA+) 和不成功的 (iNOA-) 精子采集组,基于微切割丸精子提取 (micro-TESE).
- 接收器操作特征 (ROC) 分析评估了诊断准确性.
主要成果:
- 与OA相比,iNOA中的DNMT1和ZCCHC13表达显著较低 (p = .01).与OA相比,iNOA中的DNMT1和ZCCHC13表达显著较低 (p = .01).
- 在iNOA中,DNMT3B的表达显著更高,特别是在iNOA-亚组中 (p < .0001).
- DNMT3B显示了最高的诊断准确性 (AUC = 0.84),其次是ZCCHC13 (AUC = 0.69) 和DNMT1 (AUC = 0.68).
结论:
- 表观遗传失调,特别是涉及DNMT3B和ZCCHC13,有助于iNOA中的精子发生障碍.
- 这些表观遗传生物标志物有可能从分子上区分iNOA和OA,并指导治疗策略.
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