长非编码RNADLEU1通过miR-492/TLR8轴促进骨关节炎的进展
Chenzhe Ni1, Wanglin Zhang2, Sai Qiu1
1Department of Orthopaedics, Qidong People's Hospital, Nantong University, Jiangsu, 226200, China.
Current pharmaceutical biotechnology
|February 7, 2024
概括
长非编码RNA DLEU1通过通过miR-492/TLR8轴影响细胞活力,细胞亡和细胞外基质降解来促进骨关节炎. 这项研究阐明了OA发展中的关键分子机制.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 生物化学 生化学
背景情况:
- 骨关节炎 (OA) 的发病包括长非编码RNAs (lncRNAs),作为竞争的内源RNAs (ceRNAs).
- 在OA中 lncRNA参与的精确分子机制在很大程度上仍未被阐明.
- 这项研究研究了 lncRNAs 在OA发展中的作用.
研究的目的:
- 探索骨关节炎 (OA) 发展的分子机制.
- 构建与OA相关的竞争性内源RNA (ceRNA) 网络.
- 为了研究DLEU1在OA病变发生过程中的功能.
主要方法:
- 整合了OA患者的基因表达特征,以确定关键的RNA.
- 使用IL-1β治疗的红细胞构建了一个ceRNA网络和一个体外OA模型.
- 评估了细胞活力,细胞亡,细胞外矩阵 (ECM) 降解,并使用qRT-PCR,西斑,CCK-8,流细胞计和双光酶记者测定验证了分子相互作用.
主要成果:
- 建立了一个与OA相关的ceRNA网络,包括11个途径,3个miRNA,7个lncRNA和16个mRNA.
- 在IL-1β诱导的冠状细胞中,DLEU1和TLR8的调节上升,而miR-492的调节下降.
- DLEU1过度表达损害了冠状细胞活力,增加了细胞亡,并促进了ECM降解,miR-492可逆效应,证实了DLEU1/miR-492/TLR8调节轴.
结论:
- DLEU1在调节冠状细胞活力,细胞亡和OCM降解方面发挥着重要作用.
- miR-492/TLR8轴是DLEU1在OA中发挥作用的关键途径.
- DLEU1代表了骨关节炎的潜在治疗标.
更多相关视频
相关概念视频
lncRNA - Long Non-coding RNAs
8.6K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.6K
MicroRNAs
3.0K
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...
3.0K
T Cell Types and Functions
1.0K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.0K
The JAK-STAT Signaling Pathway
8.9K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
8.9K


