在哺乳动物丸发育中TRPC3的作用
Zhenhua Ming1,2, Stefan Bagheri-Fam1, Emily R Frost1
1Sex Development Laboratory, Hudson Institute of Medical Research, Melbourne, VIC, Australia.
Frontiers in cell and developmental biology
|March 1, 2024
概括
SOX9调节新型基因Trpc3,对男性生殖发育至关重要. TRPC3影响塞尔托利,胚胎和内皮细胞功能,可能解释一些未被诊断的性发育障碍.
科学领域:
- 生殖生物学 生殖生物学
- 发育生物学是发展生物学.
- 遗传学 遗传学 是一个
背景情况:
- SOX9对于丸的确定和发育至关重要.
- SOX9中的突变与性发育障碍 (DSD) 有关.
- 许多DSD病例缺乏遗传诊断,这表明尚未发现的致病基因.
研究的目的:
- 为了确定参与丸发育的新型SOX9点基因.
- 为了研究已识别的基因Trpc3在生殖腺发育中的作用.
- 探索TRPC3作为DSD的致病基因的潜力.
主要方法:
- 在小鼠胎儿性腺体中基因表达分析 (E11.5-E13.5).
- SOX9淘汰赛小鼠模型来评估Trpc3调控.
- 在培养性生殖腺中对TRPC3的药理抑制.
- 在人类细胞系中使用xCELLigence和HoloMonitor进行细胞增殖和形态分析.
主要成果:
- Trpc3被确定为一种新型的SOX9点基因,在男性的胚胎性腺体表达高于女性的胚胎性腺体.
- 在XY Sox9淘汰赛性腺体中,Trpc3表达显著降低.
- 在XY淋巴体中抑制TRPC3降低了生殖细胞的增殖和增加了内皮细胞的亡,破坏了血管的形成.
- TRPC3促进增殖,并影响人类丸细胞的形态.
结论:
- SOX9在发展的丸中积极调节Trpc3的表达.
- 在丸形成过程中,TRPC3在Sertoli,胚胎和内皮细胞发育中发挥着关键作用.
- TRPC3是SOX9功能的潜在调解者,也是未被诊断的DSD的候选基因.
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