通过CENPF/CDK1轴对NFIC进行镇压,促进牛髓细胞的扩散
Jianfang Wang1, Juntao Guo1, Shengchen Yu1
1College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China.
Journal of agricultural and food chemistry
|May 23, 2024
概括
核因子I (NFI) 蛋白对于发育至关重要. 在牛中,NFIC通过调节CENPF/CDK1通路来促进肌细胞增殖,影响肌肉再生.
科学领域:
- 分子生物学分子生物学
- 发展生物学 发展生物学
- 动物科学动物科学
背景情况:
- 核因子I (NFI) 蛋白质是哺乳动物发育中的重要转录因子和DNA复制剂.
- 在牛肌肉再生中对NFI家族成员的研究是有限的.
- NFI家族成员表现出保存的特征,但也表现出跨物种的序列和域异质性.
研究的目的:
- 为了描述牛中的NFI家族因子.
- 研究NFIC在牛肌细胞增殖和肌肉再生中的作用.
- 阐明NFIC在调节细胞循环和增殖中的分子机制.
主要方法:
- 对NFI家族因子的生物信息分析 (表征,遗传学,功能领域).
- 在牛肌肉组织中对NFIC的定量基因表达分析.
- 在牛肉髓细胞中,siRNA介导的NFIC (si-NFIC) 的淘汰.
- 细胞循环分析和西式涂抹,以评估增殖和蛋白质表达.
- 淘汰CENPF,以调查下游效应.
主要成果:
- 牛肌肉中NFIC的表达很高,并影响肌细胞增殖标记基因.
- NFIC淘汰 (si-NFIC) 显著促进了肌细胞增殖,并抵消了细胞循环抑制.
- NFIC调节了CENPF的表达,这反过来影响了CDK1,CCNB1和细胞循环途径.
- CENPF敲除改变的p53酸化和与亡相关的蛋白质表达 (Bax, Bcl2).
结论:
- 在促进牛肉肌细胞增殖方面,NFIC发挥着重要作用.
- NFIC通过CENPF/CDK1轴作用,调节牛肉肌细胞的细胞循环和增殖.
- 这项研究提供了关于牛肌肉再生的分子机制的见解.
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