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O-GlcNAcylation通过双重机制调节子宫内膜分离:PI3K-AKT轴介导的酸化和FOXO1的直接修饰

Qianyi Sun¹, Yingxin Gao², Ao Wang¹

¹Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Dalian Medical University, Dalian, 116000, China.

|March 13, 2026

概括

O-GlcNAcylation是一种对营养敏感的修饰,通过增强子宫内膜分离,促进胚胎植入. 它通过PI3K-AKT通路调节FOXO1转录因子来实现这一目标.

科学领域:

生殖生物学生殖生物学
蜂信号传输是如何进行的
后翻译修改后的修改.

背景情况:

子宫内膜分泌对于胚胎植入至关重要.
O-GlcNAcylation是一种对营养素敏感的翻译后修饰.
以前的研究表明,O-GlcNAcylation通过表皮细胞增强有助于胚胎植入.

研究的目的:

为了研究O-GlcNAcylation在子宫内膜层细胞决定化中的作用.
阐明O-GlcNAcylation调节决定化的分子机制.

主要方法:

在小鼠胚胎植入和体外决定化过程中研究了O-GlcNAcylation水平.
在OGT抑制后利用转录组测序.
研究了O-GlcNAcylation对PI3K-AKT信号传递和FOXO1酸化/O-GlcNAcylation的影响.

主要成果:

在植入和决定化过程中,O-GlcNAcylation被上调.
降低O-GlcNAcylation的调节影响了植入和决定化.
O-GlcNAcylation减弱PI3K-AKT信号,减少FOXO1酸化,并增加FOXO1 O-GlcNAcylation,提高其稳定性和核保留.

结论:

O-GlcNAcylation对于子宫内膜决定化至关重要.
脱二化是由O-GlcNAcylation通过FOXO1调节进行的.
结果提供了对正常怀孕和决定性化障碍的见解.

关键词:

这是一种O-GlcNAcylation.决心实现二元化这就是FOXO1的意义.通过PI3K-AKT途径.

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