微RNA-338-3p通过影响颗粒细胞功能和早期毛囊发育,有助于调节卵巢功能
Ziwen Xu1,2, Tongwei Zhang1,2, Jingyi Hu1,2
1Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Journal of ovarian research
|August 26, 2023
概括
微RNA-338-3p (miR-338-3p) 在卵巢衰竭中升高,并抑制颗粒状细胞功能,影响卵泡发育,并可能导致不孕. 这一发现为诊断和治疗卵巢疾病提供了新的途径.
科学领域:
- 生殖生物学 生殖生物学
- 分子内分泌学分子内分泌学
- 卵巢生理学 卵巢生理学
背景情况:
- 哺乳动物卵巢卵泡的发育是一个复杂的过程,由卵泡微环境,粒状细胞 (GCs) 和卵细胞内的复杂相互作用来调节.
- 异常的卵泡发育可能导致不育,突出强调了解其潜在病原学的关键需要.
- 研究控制毛囊发育的分子机制对于诊断和治疗女性不孕症至关重要.
研究的目的:
- 研究微RNA-338-3p (miR-338-3p) 在哺乳动物毛囊发育和卵巢功能中的作用.
- 阐明与miR-338-3p相关的毛囊发育异常的致病机制.
- 探索miR-338-3p作为不孕症诊断或治疗点的潜力.
主要方法:
- 卵巢皮层组织的RNA测序来自正常卵巢功能和卵巢缺陷的患者.
- 在现场杂交以确定miR-338-3p在GC和卵细胞中的表达模式.
- 使用GC和新生小鼠卵巢的体外培养模型来评估miR-338-3p的生物效应.
- 在体内实验涉及注射腺相关病毒载体用于小鼠卵巢囊中的miR-338-3p过度表达.
主要成果:
- 在患有卵巢衰竭和卵巢储备减少的患者的卵巢皮层组织和GC中,miR-338-3p显著上调.
- 在试验室中,miR-338-3p的过度表达抑制了GC的增殖和雌激素的产生,并在新生小鼠卵巢中损害了早期的卵泡发育.
- 在体内给予miR-338-3p导致卵细胞线粒体膜潜能降低,并破坏了小鼠的雌性循环.
- miR-338-3p似乎通过转换生长因子β信号来调节GC增殖和早期卵泡发育.
结论:
- miR-338-3p通过调节GC增殖和雌激醇生产,在调节早期卵泡发育和正常卵巢功能方面发挥着至关重要的作用.
- 这些发现阐明了miR-338-3p在卵泡发育中的调节机制,为卵巢功能障碍的病原体提供了见解.
- 这项研究为针对miR-338-3p的新型诊断和治疗策略提供了基础,用于与毛囊发育异常相关的不孕症.
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