Effect of hydroxyethyl starch 130/0.4 on ICAM-1 expression in endotoxin-induced acute lung injury in rats and role of MAPK signal pathway in its expression
- VernacularTitle:羟乙基淀粉130/0.4对大鼠内毒素性急性肺损伤ICAM-1表达的影响及MAPK信号通路在其中的作用
- Author:
Ning DING
;
Hui XIAO
;
Lixin XU
;
Shouzhang SHE
- Publication Type:Journal Article
- Keywords:
hydroxyethyl starch;
endotoxin;
acute lung injury;
intercellular adhesion molecule 1;
signal transduction
- From:
Chinese Pharmacological Bulletin
1987;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Aim To examine the effect of different dosages hydroxyethyl starch(HES)130/0.4 on intercellular adhesion molecule 1(ICAM-1)expression in lung tissue of acute lung injury in endotoxemic rats and explore the role of MAPKs pathway in its expression.Methods Thirty six healthy Sprague Dawley(SD)rats weighing 270~320 g were randomly divided into 6 groups with 6 animals in each group.In group H1-H4,1 min after lipopolysaccharide(LPS)5 mg?kg-1 intravenously administration,HES 130/0.4 with 3.75,7.5,15,30 ml?kg-1 were infused intravenously respectively at a rate of 0.2 ml?min-1.In group L,saline instead of HES 130/0.4 was administered.Group N served as control by giving the same volume of saline.The animals were anesthetized with pentobarbital.Right external jugular vein was injected with LPS.The animals were killed 4 hours after LPS injection for determination of total protein,WBC,MPO,W/D,ICAM-1 protein and mRNA and MAPKs activity.Results Compared with control group,total protein,WBC,MPO,W/D,expression of ICAM-1 protein and mRNA and MAPKs activity were increased significantly in group L.Compared with group L,total protein,WBC,MPO,W/D,expression of ICAM-1 protein and mRNA and MAPKs activity were decreased significantly in group H1 and H2,especially at the dosage of 7.5 ml?kg-1.Conclusion HES 130/0.4(7.5 ml?kg-1)can attenuate inflammatory response of acute lung injury induced by LPS,which may be related with inhibiting the expression of ICAM-1 protein and mRNA through MAPKs signal pathway.
