Chinese Journal Of Clinical Anatomy ›› 2015, Vol. 33 ›› Issue (4): 439-443.doi: 10.13418/j.issn.1001-165x.2015.04.014

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Building the acute lung injury mouse model  by LPS direct and indirect challenge

CHEN Ying-hua1,  LV Jia-wen2,  ZAI Qi-liang1,  XIE Zhe-fan2,  HU Guo-dong2   

  1. 1.Department of Histology and Embryology, Southern Medical University, Guangzhou 510515, China;  2.Department of Respiratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
  • Received:2015-05-05 Online:2015-07-25 Published:2015-08-14

Abstract:

Objective Acute lung injury(ALI) that results from acute inflammation of respiratory system is a popular acute and serious pulmonary symptom in clinic. The successful establishment of the mouse model for ALI is essentially important. Methods In this study, we compared the differences between injection LPS from intratrecher (i.t.) and intraperitoneal (i.p.). By histological and pathological evaluation, cytologic reaction of inflammation cells. Change of protein secreted by inflammation cells were adopted to rate the effectiveness of model establishment induced by i.t. and i.p. injection. Results We got more obvious  inflammation reaction and more efficient ALI by i.t. injection. On cytologics item, we got more exudation of neutrophil cells in BALF (bronchial alveoli lavage fluid) by i.t. injection. On cytokines item, secreted proteins were obviously increased in bronchoalveoli lavage fluid by i.t. injection.  Conclusions  Injection LPS by i.t. is a better method for establishment of ALI model, which leads to acute lung injury directly and immediately.

Key words: LPS, Acute Lung Injury(ALI), Intratrecher(i.t.), Intraperitoneal (i.p.)