在糖尿病视网膜病变中,hsa_circ_0087100/hsa-miR-6743-5p通过调节STAT1影响Th1细胞分化
Shuai He1,2, Dongwei Lai1,2, Chenggong Ma3
1Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China.
Epigenomics
|February 27, 2024
概括
竞争性内源性RNA (ceRNA) 网络,特别是hsa_circ_0087100/hsa-miR-6743-5p/STAT1,会影响糖尿病视网膜病变 (DR) 中的Th1细胞分化. 这一发现澄清了ceRNA在DR免疫透中的作用.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 眼科医生 眼科 眼科
背景情况:
- 糖尿病视网膜病变 (DR) 涉及复杂的免疫失调.
- 竞争性内源性RNA (ceRNA) 网络在DR相关的免疫透中的作用尚不清楚.
研究的目的:
- 调查ceRNA网络在糖尿病视网膜病变中的免疫细胞透中的功能.
- 确定有助于DR中Th1细胞分化的特定ceRNA通路.
主要方法:
- 利用基因表达总体数据用于差异表达的circRNAs,miRNAs和mRNAs.
- 雇佣了CIBERSORT和ssGSEA进行免疫透分析.
- 进行了权重基因共同表达网络分析,以确定共同表达的基因.
- 验证的STAT1介导的Th1差异化在体外和体内DR模型.
主要成果:
- 确定了hsa_circ_0087100/hsa-miR-6743-5p/STAT1轴作为Th1细胞免疫透的关键组成部分.
- 证实了这种ceRNA网络的异常表达和STAT1介导的Th1差异化在DR.
- 在DR的细胞和动物模型中证明了这种途径的参与.
结论:
- hsa_circ_0087100/hsa-miR-6743-5p/STAT1 ceRNA网络在调节糖尿病视网膜病变中的Th1细胞分化方面发挥着重要作用.
- 这项研究为DR的免疫反应背后的分子机制提供了新的见解.
相关概念视频
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
iPS Cell Differentiation
2.7K
The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
2.7K
Regulation of Angiogenesis and Blood Supply
2.6K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.6K
Regulation of Hematopoietic Stem Cells
3.2K
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
3.2K
TGF - β Signaling Pathway
7.4K
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
7.4K


