对增殖性糖尿病视网膜病变纤维血管膜的单细胞转录组学分析显示,AEBP1是纤维生成调节器
Katia Corano Scheri1, Jeremy A Lavine1, Thomas Tedeschi1
1Department of Ophthalmology and.
JCI insight
|November 2, 2023
概括
向脂肪细胞增强剂结合蛋白1 (AEBP1) 可能在晚期糖尿病视网膜病变 (DR) 中防止痕组织形成. AEBP1的信号传递会影响细胞周围细胞的转化,这是纤维化的一个关键过程.
科学领域:
- 眼科医生 眼科 眼科
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 糖尿病视网膜病变 (DR) 是导致视力丧失的主要原因.
- 甲状腺前纤维血管膜是晚期DR的严重并发症.
- 目前对这些膜的管理策略有限.
研究的目的:
- 为了描述前皮膜纤维血管膜内的细胞的分子概况.
- 确定新的治疗点,以预防DR中痕组织的形成.
主要方法:
- 单细胞RNA测序 (scRNA-Seq) 的手术切除的前膜纤维血管膜.
- 差异基因表达分析以确定细胞群和关键分子.
- 在高葡萄糖条件下使用人类视网膜周细胞 (HRP) 的体外细胞培养实验.
- siRNA转染,以评估AEBP1.1的作用.
主要成果:
- scRNA-Seq确定了内皮细胞,炎症细胞和树皮细胞群.
- 内皮细胞显示出活跃的血管生成,而巨细胞表达出益血管性细胞因子.
- 鉴定出了一个围细胞-肌纤维细胞转分化子集群,涉及纤维生成.
- 脂肪细胞增强剂结合蛋白1 (AEBP1) 在肌纤维细胞中显著上调.
- 在HRP中,高葡萄糖条件诱导了细胞转化为肌纤维细胞的转化.
- 抑制AEBP1降低了HRP中的profibrotic标志物表达.
结论:
- AEBP1信号传递在细胞周围细胞-肌纤维细胞转化中起着至关重要的作用.
- 向AEBP1是一个潜在的治疗策略,可以抑制晚期糖尿病视网膜病变中痕组织的形成.
更多相关视频
04:36Author Spotlight: Understanding Retinal Vessel Resilience and Disease Progression
Published on: January 12, 2024
1.1K
11:13Adenoviral Gene Therapy for Diabetic Keratopathy: Effects on Wound Healing and Stem Cell Marker Expression in Human Organ-cultured Corneas and Limbal Epithelial Cells
Published on: April 7, 2016
9.2K
相关概念视频
Cell Specific Gene Expression
13.6K
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
13.6K
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
