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Updated: Jan 10, 2026

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Use of Alu Element Containing Minigenes to Analyze Circular RNAs
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在未成年山羊的产后肝脏发育过程中,对循环RNA表达动态和ceRNA网络机制的综合分析
Qing Li1,2, Shanfeng Du3, Jianmin Wang1,2
1Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, China.
Animal bioscience
|November 25, 2025
概括
这项研究揭示了年轻山羊肝中的动态循环RNA (circRNA) 表达,确定了在发育过程中代谢和免疫力中的关键调节作用. 这些发现为反动物肝脏发育的转录后调节提供了洞察力.
科学领域:
- 动物科学动物科学
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 循环RNAs (circRNAs) 是基因表达的关键调节者.
- 了解circRNA动态对于破译牲畜发育过程至关重要.
研究的目的:
- 分析年轻山羊肝在发育过程中的circRNAs的动态表达特征和功能机制.
- 阐明 circRNAs 在发展山羊肝中的代谢和免疫途径中的作用.
主要方法:
- 从五个发育时间点 (出生至12周) 的Laiwu黑山羊肝脏组织的转录基因组测序.
- 差异表达的circRNAs的鉴定和功能丰富分析.
- 构建一个circRNA-miRNA-mRNA调节网络 (ceRNA网络).
- 使用双 luciferase 记者基因测定验证关键的调节轴.
主要成果:
- 在不同发育阶段鉴定出178种差异表达的circRNA.
- 环RNAs的源基因参与免疫反应,脂质代谢和细胞信号通路.
- 上调的circRNAs (集群9) 与托代谢和炎症有关;下调的circRNAs (集群0) 可能会影响葡萄糖转化为脂肪酸代谢.
- 构建了一个涉及20个circRNAs,15个miRNAs和21个mRNAs的ceRNA网络,其中特定的轴被确定为关键调节器.
- 针对奇米R-532-3p/CYP8B1/circ10-21217626-21219471.1.的目标关系得到证实.
结论:
- 在山羊肝发育过程中建立了动态circRNA表达模式.
- 循环RNA可能通过ceRNA机制调节代谢和免疫路径.
- 这项研究为反动物肝脏发育的转录后调节提供了新的见解.
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