LPS诱导鼠急性肺损伤模型的评价分析
2017-11-14温保强刘江华
温保强 刘江华
【摘要】 急性肺损伤(Acute lung injury,ALI)和急性呼吸窘迫综合征(acute respiratory distress syndrome,ARDS)是通过干扰与肺泡毛细血管屏障有关的临床急危重症。过去由于对ALI和ARDS机制研究不清、临床上没有针对性治疗方法,导致疾病的死亡率很高。近年来,随着利用脂多糖(Lipopolysaccharides,LPS)创建ALI动物模型实验的研究的不断深入,在ALI模型的建立及其机制方面有了较新的进展,新的研究指导临床有望降低ALI和ARDS的死亡率。本文对LPS诱导鼠急性肺损伤不同模型进行评价分析,以便广大研究者对急性肺损伤动物模型建立和研究提供进一步认识,为前临床研究提供动物实验基础。
【关键词】 急性肺损伤; LPS; 鼠模型
Evaluation and Analysis of LPS Induced Acute Lung Injury in Mouse/WEN Bao-qiang,LIU Jiang-hua.//Medical Innovation of China,2017,14(26):137-140
【Abstract】 Acute lung injury and acute respiratory distress syndrome are caused by disturbing clinical acute and severe complications associated with alveolar capillary barrier.In the past due to ALI and ARDS mechanism are unclear,there is no spcific clinical treatment,and resulting in a high mortality rate of the disease.In recent years,with the deepening of the study of ALI animal model experiments with using LPS,new progress has been made in the establishment and mechanism of ALI model.New research has suggested that clinical trials are expected to reduce the mortality of ALI and ARDS.In this paper,we evaluated the different mouse models of acute lung injury induced by LPS,in order that researchers could further develop the animal model of acute lung injury and provide the animal experimental basis for the preclinicalstudy.
【Key words】 Acute lung injury; LPS; Mouse model
First-authors address:The Second Affiliated Hospital of Guangxi Medical University,Nanning 530007,China
doi:10.3969/j.issn.1674-4985.2017.26.036
目前,在已發表通过对急性肺损伤动物模型的实验研究中,研究人员发现活化多形核白细胞(polymorphonuclear leukocyte,PMN)在肺组织内的聚集的现象,在ALI和ARDS的发展中发挥关键作用[1-2]。然而PMN移动到肺部不同部位引起ALI和ARDS的原理尚未完全阐明。目前用于研究PMN与ALI和ARDS的关系主要方法为在LPS诱导下复制肺损伤鼠模型[3-4],来阐明LPS刺激对化学引诱物的反应增加炎症部位的PMN迁移的作用。虽然单独使用LPS没有预先考虑存在的疾病、液体复苏或机械通气等客观条件的存在[5-6],无法反映整体人类疾病的复杂性,但是通过对鼠肺损伤模型过程的,能够在一定程度上反映模拟体内ALI和ARDS的病理生理状态[7],为前临床研究提供研究思路。本文就LPS急性肺损伤模型建立总结和分析,为前临床研究提供动物实验基础提供合适的参考。
1 LPS诱导下复制肺损伤机制
内毒素模型的基础:LPS是一种糖脂,是存在于组成革兰氏阴性细菌的外膜中的极性脂质头组(脂质A)和链重复二糖[8]。……
