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Adriana C Norris¹, Eugenia M Yazlovitskaya¹, Tzushan Sharon Yang²

¹Department of Biological Sciences, Vanderbilt University, Nashville, TN, United States.

Frontiers in cell and developmental biology

|February 28, 2024

概括

失去ATP10A基因会导致小鼠的男性不育,导致小丸和精子质量降低. 这一发现突出了ATP10A的存在.

科学领域:

生殖生物学生殖生物学
遗传学遗传学是一个
分子生物学分子生物学

背景情况:

在全球范围内,男性不孕症影响了超过4%的夫妇,在许多情况下,遗传原因不明.
识别新的遗传因素对于理解男性不孕症病因至关重要.
ATP10A是一种脂翻酶,在男性生殖组织中高度表达.

研究的目的:

使用淘汰赛小鼠模型调查ATP10A在男性生育中的作用.
阐明ATP10A在繁殖中的功能背后的分子机制.

主要方法:

产生和分析ATP10A淘汰赛小鼠.
评估男性和女性生育指标.
丸和分泌管的组织病理学检查.
激素水平分析 (,LH,FSH,抑制剂B).
对信号通路 (ERK,p38 MAPK,Akt,cPLA2) 和丸中的受体表达的分析.
对相关的ATP10D基因进行CRISPR/Cas9校正,以隔离ATP10A的功能.

主要成果:

缺少ATP10A导致男性特异性不孕症与较小的丸,精子和精子.
在淘汰的男性的丸和分泌管中观察到组织病理异常.
在淘汰赛小鼠中,观察到荷尔蒙水平的变化和淋巴激素受体的升高.
丸中的特定分子信号通路受到失调.
证实仅仅ATP10A的损失就足以治疗男性不孕症.

结论:

ATP10A对小鼠的雄性生育起着至关重要的作用.
破坏ATP10A功能会通过涉及丸结构,精子参数,荷尔蒙平衡和细胞内信号传递的机制导致男性不孕.
这些发现为男性不孕症的遗传基础和潜在的治疗点提供了洞察力.

关键词:

这是一种P4-ATPase酶.生育能力生育能力生育能力生育能力翻转阶段 (flippase) 是一个翻转阶段.葡萄糖基胺的使用方法不孕症不孕不育不孕不育不孕不育淘汰赛鼠标模型的模型男性特异性的不孕不育症酸胆是一种酸.

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