Effect of lipopolysaccharide on thymocyte differentiation antigen-1 mRNA expression in mouse lung fibroblasts
10.3760/cma.j.issn.0254-1416.2013.03.024
- VernacularTitle:脂多糖对小鼠肺成纤维细胞Thy-1 mRNA表达的影响
- Author:
Yuan GAO
;
Jianping YANG
;
Zhengyu HE
- Publication Type:Journal Article
- Keywords:
Antigen,Thy-1;
Fibroblast;
Lung;
Cell proliferation;
Lipopolysaccharides
- From:
Chinese Journal of Anesthesiology
2013;(3):350-352
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effect of lipopolysaccharide (LPS) on thymocyte differentiation antigen-1 (Thy-1) mRNA expression in mouse lung fibroblasts.Methods Primary cultured mouse lung fibroblasts were seeded in 96-well plates with the density of 1 × 104/ml.After being cultured for 48 h,the cells were randomly divided into 4 groups (n =3 each):PBS control group (group C),LPS 0.01 μg/ml group (group LPS0.01),LPS 0.10 μg/ml group (group LPS0.10),and LPS 1.00 μg/ml group (group LPS1.00).PBS was added to the 96-well plates in group C.LPS with the final concentrations of 0.01,0.10 and 1.00 μg/ml were added to the 96-well plates in groups LPS0.01,LPS0.10 and LPS1.00,respectively.After being incubated for 0,6,24,48 and 72 h (T0-4),the proliferation of the cells was measured by CCK-8 assay and Thy-1 mRNA expression was detected by real-time PCR.Results Compared with group C,the proliferation of the cells was significantly increased,while Thy-1 mRNA expression was down-regulated at T3,4 in groups LPS0.01,LPS0.10 and LPS1.00 (P ＜ 0.05).The proliferation of the cells was gradually increased,while Thy-1 mRNA expression was gradually down-regulated in groups LPS0.01,LPS0.10 and LPS1.00 at T3,4 (P ＜ 0.05).Conclusion LPS results in abnormal proliferation of mouse lung fibroblasts through down-regulating Thy-1 mRNA expression,indicating that endoxemia-induced pulmonary fibrosis is related to the down-regulation of Thy-1 mRNA expression in lung fibroblasts.
