在AKI过渡到CKD期间,CD8 T细胞诱导周周毛细管稀疏化
Wei Jiang1, Tao-Tao Tang1, Yi-Lin Zhang1
1Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, China.
International journal of biological sciences
|June 21, 2024
概括
通过破坏血管,CD8 T细胞驱动纤维化从急性损伤到慢性病的进展. 消除这些细胞显示出预防病的治疗潜力.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 急性损伤 (AKI) 进展为慢性病 (CKD) 涉及管间炎症和纤维化.
- 人们对AKI向CKD过渡的确切机制仍然不完全了解.
研究的目的:
- 用小鼠模型阐明T细胞在从AKI过渡到CKD中的作用.
- 确定特定的T细胞子集及其促进损伤进展的机制.
主要方法:
- 单细胞RNA测序 (scRNA-seq) 的T细胞从单边缺血-再输液损伤 (uIRI) 的小鼠模型.
- 对T细胞积累,子集和与其他细胞的相互作用进行分析.
- 研究CD8T细胞在周周毛细管 (PTC) 稀缺和纤维化中的作用.
主要成果:
- 在AKI过渡到CKD期间,T细胞种群扩大,CD8T细胞通过自我增殖显著增加.
- 巨细胞通过CXCL16-CXCR6通路调解了CD8 T细胞的招募.
- CD8 T 细胞通过 Fas 连接体-Fas 信号诱导内皮细胞亡,导致 PTC 稀缺.
- 在uIRI小鼠中,消除CD8T细胞显著降低了PTC损失和纤维化.
结论:
- CD8 T 细胞在 AKI 到 CKD 的进展中发挥着关键作用,通过诱导周周毛细血管稀疏作用.
- 向CD8T细胞是缓解纤维化和疾病进展的潜在治疗策略.
相关概念视频
01:24Renal Tubule and Collecting Duct
911
The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
911
01:10Nephrons
2.3K
The kidneys are intricate organs with millions of working units known as nephrons. Each nephron features two major structures: the renal corpuscle, which facilitates blood plasma filtration, and the renal tubule, which handles the glomerular filtrate. Blood supply is directly linked to the nephrons. The renal corpuscle consists of the glomerulus, a capillary network, and the Bowman's capsule, a double-walled epithelial structure that encases the glomerulus. The filtering of blood plasma...
2.3K