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印制的Igf2-Igf2r轴在牛胎盘的早期发育过程中对外体生物生成至关重要

Kunhua Zheng¹, Longfei Xiao¹, Naihan Yuan¹

¹Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China.

The Journal of reproduction and development

|December 11, 2024

概括

胰岛素样生长因子2 (IGF2) 和IGF2受体 (IGF2R) 轴通过控制外体的产生来调节牛胎盘的发育. 这个轴对胎盘早期生长至关重要,可以提供对胎盘疾病的见解.

科学领域:

生殖生物学生殖生物学
细胞生物学细胞生物学
发育生物学发展生物学

背景情况:

胰岛素样生长因子2 (IGF2) 和它的受体 (IGF2R) 对胚胎和胎盘发育至关重要.
外体,分泌的囊泡参与细胞通信,对于胚胎发生和胎盘功能至关重要.
在胎盘发育早期,印记Igf2-Igf2r轴与外体细胞之间的相互作用尚不清楚.

研究的目的:

研究印制Igf2-Igf2r轴和外体在牛早期胎盘发育的共同调节中的作用.
确定IGF2,IGF2R的局部化和表达模式,以及在牛胎盘内外体标志物中的表达模式.
阐明操纵IGF2R或IGF2表达如何影响胎盘细胞中的外体细胞生物发生.

主要方法:

采集不同妊娠年龄的牛胎盘粘囊.
使用局部化和表达分析检测IGF2,IGF2R和外体标记蛋白 (CD63,CD9,TSG101,Rab11).
通过RNA干扰或化学抑制剂抑制IGF2R或IGF2表达,然后评估细胞和衍生出异位体中的异位体标志物表达.

主要成果:

IGF2,IGF2R和外体标记物被定位在牛胎盘的单核和双核 trofhoblast 细胞的细胞膜上.
随着孕期的推进,IGF2,IGF2R和外体标志物的表达水平显著增加.
降低IGF2R或IGF2的调节导致胎盘细胞和它们的外体细胞中外体标记物的表达减少.

结论:

印制的Igf2-Igf2r轴在早期的牛胎盘细胞的发育中起着重要作用.
这一轴通过调节外体生物生成来影响胎盘发育.
这些发现为理解和潜在治疗胎盘发育障碍提供了基础.

关键词:

牛类牛类牛类牛类牛类牛外基因组是外基因组的组成部分.胰岛素类生长因子2 (IGF2)胰岛素类生长因子2受体 (IGF2R)胎盘热囊细胞是胎盘的热囊细胞.

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