慢性病患者中性粒细胞中GPCRs过度表达和fMLP诱导的功能受损
Pablo Scharf1, Silvana Sandri1, Felipe Rizzetto1,2
1Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil.
Frontiers in immunology
|September 10, 2024
概括
慢性病 (CKD) 改变中性粒细胞G蛋白结合受体 (GPCRs),损害其功能,并可能导致炎症和疾病进展. 这些发现揭示了对CKD中性粒细胞行为的新见解.
科学领域:
- 免疫学 免疫学 免疫学
- 腎臟病學 (nephrology) 是一種醫學.
- 细胞生物学 细胞生物学
背景情况:
- 中性粒细胞上的G蛋白结合受体 (GPCR) 控制其血液循环和炎症作用.
- 慢性病 (CKD) 与炎症和中性粒细胞增加有关,但它们在CKD中的特定功能尚不清楚.
研究的目的:
- 研究CKD患者的GPCR表达和中性粒细胞功能.
- 了解中性粒细胞在CKD发病过程中的作用.
主要方法:
- 从非透析CKD患者 (3-5级) 收集血液和组织.
- 评估了中性粒细胞上的GPCR表达 (CXCR4,FPR1,FPR2) 和激活标志物.
- 评估中性粒细胞的功能,如细胞骨组织,迁移和反应性氧物种 (ROS) 生产.
- 测量了附件A1 (AnxA1) 的表达和分泌.
主要成果:
- 慢性病患者的中性粒细胞与淋巴细胞比率 (NLR) 更高,与EGFR相反相关.
- 慢性病患者中性粒细胞增加了CXCR4,FPR1和FPR2的表达.
- 在对fMLP的反应中,CKD中性粒细胞表现出迁移,细胞骨组织和ROS产生受损.
- 慢性结核病中性粒细胞表现出改变的AnxA1表达和受损的分泌,影响通过FPR2传递抗炎信号.
结论:
- 慢性结核病中性粒细胞过度表达GPCRs,可能导致失调的衰老和功能障碍.
- 在CKD中改变的中性粒细胞GPCRs可能会导致向炎症组织的迁移,并影响细胞增生.
- 这些发现凸显了中性粒细胞GPCRs在CKD病理生理学中的新作用.
关键词:
附录A1 附录 A1 是一个附录.CXCR4CXCR4CXCR4CXCR4CXCR4CXCR4CXCR4CXCR4CXCR4CXCR4C现在的FPR就是FPR.fMLP是指MLP的使用者.中性粒细胞与淋巴细胞的比率.更多相关视频
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