单细胞核RNA测序揭示了丁安的胚胎发育期间乳腺肌细胞的动态变化
Tieshan Xu1,2, Yingxiu Hu1, Haokai Fan1,3
1Institute of Animal Science & Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou, China.
PloS one
|December 11, 2025
概括
这项研究揭示了丁安的乳腺肌肉发育过程中的关键细胞和分子变化. 它识别了纤维细胞基原生细胞 (FAPs) 和肌肉干细胞 (MuSCs) 的动态,这对于了解家禽肉类生产至关重要.
科学领域:
- 发展生物学 发展生物学
- 分子生物学分子生物学
- 禽畜科学 禽畜科学 禽畜科学
背景情况:
- 乳腺肌肉发育对于家禽肉类生产至关重要.
- 丁安的乳腺肌的关键发育时间点 (E15,E21,E31) 已知,但分子机制尚不清楚.
- 了解细胞动态对于优化肉类产量至关重要.
研究的目的:
- 在丁安的胚胎乳腺肌肉发育期间分析细胞异质性和分子动力学.
- 在关键发育阶段识别关键细胞类型及其丰度变化.
- 阐明控制胸肌发育的分子机制.
主要方法:
- 单核RNA测序 (snRNA-seq) 用于胚胎乳腺肌肉组织.
- 分析包括细胞类型识别,丰度量化和基因调控网络构建.
- 进行发育轨迹分析,以确定关键的发育基因.
主要成果:
- 确定了9种不同的细胞类型,包括纤维细胞脂肪原始细胞 (FAPs),肌细胞和肌肉干细胞 (MuSCs).
- 观察到细胞丰度的显著变化:FAPs和MuSCs减少,而肌细胞从E15增加到E31.
- 基因调控网络揭示了肌细胞,MuSC和FAP中的异质性,确定了与MuSC发育相关的特定基因.
结论:
- 这项研究提供了丁安子胚胎乳腺肌的综合单细胞核特征.
- 这些发现阐明了驱动细胞动力学和胸肌发育的分子机制.
- 了解这些发育过程可以为增强家禽肉生产特征的策略提供信息.
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