单细胞RNA测序揭示了细胞异质性和微环境重塑在人类尿道痕结构组织
Xiaobo Ding1,2,3,4, Guoxiang Li1,2,3, Yuehan Yang1,2,3
1Department of Urology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China.
Journal of inflammation research
|September 22, 2025
概括
这项研究揭示了尿路痕狭窄的显著细胞变化,突出了免疫细胞的变化和增加的促炎信号. 这些发现为纤维化疾病提供了新的治疗点.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 尿道痕狭窄是一个重要的临床挑战.
- 了解尿道纤维化细胞动态对于开发有效治疗方法至关重要.
研究的目的:
- 创建一个全面的单细胞转录基因地图人尿道痕狭窄组织.
- 在尿道痕狭窄中识别细胞异质性,亚种群动态和细胞间通信网络.
主要方法:
- 单细胞RNA测序 (scRNA-seq) 在正常对照和尿路痕狭窄患者的尿路组织上进行.
- 数据分析涉及Seurat,Harmony,Monocle2和CellChat. 这些公司都在进行数据分析.
- 使用多重免疫光 (IF) 和免疫组织化学 (IHC) 验证了关键发现.
主要成果:
- 确定了11种主要细胞类型,在尿道痕狭窄组织中具有明显的亚群.
- 观察到增多的前炎性基础上皮细胞,异质纤维细胞和激活的内皮细胞.
- 检测到Th17,Treg和CD8+ T细胞数量增加以及通过PERIOSTIN,原和拉米宁通路增强细胞间信号传递.
结论:
- 这项研究提供了第一个高分辨率的尿道痕狭窄的单细胞地图.
- 揭示了深层次的细胞异质性和免疫-肌脉-表皮格局的重塑.
- 纤维细胞微环境中的强化细胞间通信为疾病发病和潜在的治疗点提供了新的见解.
相关概念视频
03:21RNA-seq
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
01:28Microbiota of the Urogenital Tract
The human urogenital system, once thought to be sterile in healthy individuals, is now recognized as a complex microbial habitat. Advancements in molecular sequencing techniques have revealed that even in healthy adults, the kidneys and bladder harbor microbial populations similar to those found in the distal urethra, albeit in much lower abundance. These resident microorganisms, while generally innocuous, can become opportunistic pathogens under conditions that alter the urogenital...