在部大鼠模型的发育性发育障碍症中,微观结构变化和miRNA-mRNA网络
Jiahui Liu1, Yiyao Bao2, Jiajie Fan3
1Department of Orthopedics, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, 3333 Binsheng Road, Hangzhou, Zhejiang 310052, P.R. China.
iScience
|March 29, 2024
概括
这项研究揭示了部发育不良的关键microRNA-mRNA相互作用,确定了异常的软骨发育和这种疾病的潜在诊断生物标志物.
科学领域:
- 分子生物学分子生物学
- 发展生物学 发展生物学
- 整形外科 整形外科 整形外科
背景情况:
- 微RNA (miRNA) 和信使RNA (mRNA) 在细胞过程中起着关键作用.
- 在部发育性形症 (DDH) 中,影响形软骨 (AC) 发育的特定miRNA-mRNA相互作用尚不清楚.
研究的目的:
- 研究DDH大鼠模型的AC增殖区中的动态微观结构变化和基因表达特征.
- 为了确定参与DDH病变发生的关键miRNA-mRNA相互作用对.
主要方法:
- 利用DDH大鼠模型分析了AC增殖区的动态微观结构变化.
- 进行了mRNA和miRNA表达特征分析.
- 通过网络和基因表达模式分析构建了miRNA-mRNA相互作用网络并确定了枢纽基因.
主要成果:
- 在AC增殖区观察到异常的冠状细胞增殖.
- 鉴定了差异表达的mRNA和miRNA,与下调的mRNA和在骨和软骨发育途径中丰富的上调miRNA的目标基因.
- 发现了6个枢纽基因,表达水平与预测的miRNA相互作用相关,大多数对的显著负相关性.
结论:
- 在AC增殖区中过度的冠状细胞增殖可能会阻碍AC骨化,导致DDH的发展.
- 在本研究中发现的特定miRNA-mRNA相互作用对具有作为DDH的诊断生物标志物和治疗点的潜力.
相关概念视频
01:22MicroRNAs
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 ends...
01:22MicroRNAs
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 ends...
01:22MicroRNAs
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...