[Research progress on the mechanism and target therapeutic value of pericytes in acute lung injury].

Acute lung injury (ALI) is a common respiratory disease in clinical practice, which can progress to acute respiratory distress syndrome and endanger the patient's life. Pericytes are a class of cells that directly contact the microvascular basement membrane in the microvascular bed and communicate with endothelial cells, and their distribution and interaction with endothelial cells help to define and maintain local microvascular characteristics. In recent years, pericytes have became one of the most important indicators of ALI. This article reviews the important mechanisms of pericellular function in the physiological functions of the respiratory system, immune inflammatory response in the lungs, microvascular permeability, and signaling pathways related to ALI progression, as well as their effective treatment of ALI as targets, by searching relevant literature at home and abroad. It provides a scientific reference for targeted therapy of ALI.