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对差异表达的miRNA和非编码RNA网络的综合分析揭示了产后奶牛中甲状腺炎的分子机制

Ramanathan Kasimanickam¹, Joao Ferreira², Vanmathy Kasimanickam¹

¹College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA.

Current issues in molecular biology

|August 27, 2025

概括

这项研究揭示了乳牛甲状炎的分子通路,确定了涉及微RNA和其他非编码RNA的关键调节网络. 这些发现表明,改善牛的生殖健康和减少经济损失可能是目标.

科学领域:

兽医免疫学
分子生物学
乳牛的繁殖

背景情况:

乳牛产后甲状炎严重影响其生殖能力,并造成经济损失.
在以前的研究中,在患有甲状腺炎的奶牛中发现了30种差异表达的微RNA (miRNA).

研究的目的:

研究乳牛产后肌炎的分子机制.
构建涉及各种RNA类型和蛋白质相互作用的调节网络.

主要方法:

集成的高通量循环miRNA分析与系统级生物信息学.
预测了miRNA目标基因,并构建了复杂的调节和蛋白质-蛋白质相互作用网络.
进行了功能注释和KEGG路径分析.

主要成果:

上调的miRNA针对免疫激活,亡和新陈代谢中的基因;下调的miRNA针对血管生成,免疫抑制和组织修复中的基因.
核心基因 (例如AKT3,VEGFA,HIF1A) 是免疫和血管信号的核心.
鉴定了参与甲状腺炎的关键途径 (PI3K-Akt,NF-κB,JAK-STAT) 和调控性非编码RNA (NEAT1,KCNQ1OT1,XIST).

结论:

涉及miRNAs,mRNAs,circRNAs,lncRNAs和snRNAs的复杂调控网络导致奶牛产后肌炎.
特定的miRNA和非编码RNA具有促炎或免疫抑制作用.
这些发现提供了改善奶牛生育能力和治疗乳腺炎的潜在分子标.

关键词:

没有血.免疫功能在分析中炎症的发生在 mRNA 中微RNAs 产后的奶牛子宫

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相关概念视频

MicroRNAs

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...