Wang Feng-jun
Institute of Burn Research, Southwest Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, the Third Military Medical University, Chongqing 400038, China.
Zhonghua Shao Shang Za Zhi. 2010 Oct;26(5):331-3.
Severe burn injury is often accompanied by intestinal epithelial tight junction barrier dysfunction, which is believed to be closely associated with postburn shock, inflammation, hypermetabolism, infection, organ dysfunction etc. Recent studies have documented the critical role of tight junction-associated protein regulation in intestinal epithelial barrier dysfunction induced by severe burn injury. Myosin light chain (MLC) phosphorylation regulated by both myosin light chain kinase, which can phosphorylate MLC directly, and Rho-associated kinase, which can inhibit MLC phosphatase and then induce MLC phosphorylation indirectly, play a critical role in intestinal epithelial tight junction barrier dysfunction which occurs in severe burn injury. Recent advances have provided new insights into the mechanisms and the therapeutic strategies of intestinal epithelial tight junction barrier dysfunction following severe burn injury.
严重烧伤常伴有肠上皮紧密连接屏障功能障碍,这被认为与烧伤后休克、炎症、高代谢、感染、器官功能障碍等密切相关。最近的研究表明,紧密连接相关蛋白调控在严重烧伤诱导的肠上皮屏障功能障碍中起关键作用。肌球蛋白轻链(MLC)磷酸化受肌球蛋白轻链激酶和Rho相关激酶调控,前者可直接使MLC磷酸化,后者可抑制MLC磷酸酶从而间接诱导MLC磷酸化,它们在严重烧伤时发生的肠上皮紧密连接屏障功能障碍中起关键作用。最近的进展为严重烧伤后肠上皮紧密连接屏障功能障碍的机制和治疗策略提供了新的见解。