在肉肌形成过程中识别和功能分析miR-34c-5p目标基因
Shuohan Li1, Ke Zhang1, Yixiang Tian1
1College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China.
Genomics
|February 22, 2026
概括
微RNAs (miRNAs) 调节的肌肉生长. miR-34c-5p通过准TGM4来抑制肉初级肌细胞增殖,为改善肉类生产提供了洞察力.
科学领域:
- 分子生物学分子生物学
- 发育生物学 发展生物学
- 动物科学动物科学
背景情况:
- 微RNAs (miRNAs) 是骨肌肉发育中的基因表达的关键调节者.
- 之前的研究表明,miR-34c-5p抑制了初级肌肉细胞 (CPMs) 的增殖和分化.
- 在肉肌形成过程中,miR-34c-5p的精确分子机制尚未完全被理解.
研究的目的:
- 阐明miR-34c-5p影响骨肌肉发育的分子机制.
- 在肌肉发育过程中通过miR-34c-5p调节的目标基因的识别.
- 探索已识别的目标基因在CPM扩散中的作用.
主要方法:
- 在CPM中过度表达miR-34c-5p,然后进行转录组测序.
- 差异表达基因 (DEGs) 的识别和分析.
- 双露西法酶记者测定和功能增益/丧失实验,以验证基因标和功能.
主要成果:
- 转录基因组测序确定了159个DEG参与肌体发生相关途径.
- miR-34c-5p直接向并抑制MYH7B和TGM4.4的mRNA表达.
- 发现TGM4促进了CPM的扩散.
结论:
- miR-34c-5p通过准MYH7B和TGM4.4来发挥肌发生的调节作用.
- TGM4促进了的初级肌细胞增殖.
- 这些发现更深入地了解了myogenesis中的miR-34c-5p调节网络以及提高肉生产的潜在标志物.
更多相关视频
08:08Chicken Recombinant Limbs Assay to Understand Morphogenesis, Patterning, and Early Steps in Cell Differentiation
Published on: January 12, 2022
2.7K
06:49Analysis of Cell Differentiation, Morphogenesis, and Patterning During Chicken Embryogenesis Using the Soaked-Bead Assay
Published on: January 12, 2022
3.7K
相关概念视频
Formation of Muscle Fibers from Myoblasts
6.2K
De novo myogenesis, or the formation of muscle fibers, begins during the early embryonic stages. The skeletal muscle is formed from somites– blocks of embryonic cell layers. The somites are further divided into dermatomes, myotomes, sclerotomes, and syndetomes. Among these, the myotomes give rise to muscle fibers.
Muscle progenitor cells (MPCs) are formed from the myotomes. MPCs express genes that encode the transcription factors Pax3 and Pax7. Along with Pax 3/7, other transcription...
Muscle progenitor cells (MPCs) are formed from the myotomes. MPCs express genes that encode the transcription factors Pax3 and Pax7. Along with Pax 3/7, other transcription...
6.2K
Master Transcription Regulators
7.9K
Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
7.9K
