The expression of IL-4 in bleomycin-induced pulmonary fibrosis in rats
- VernacularTitle:白介素-4在博莱霉素致大鼠肺纤维模型中的表达
- Author:
Tao WANG
- Publication Type:Journal Article
- Keywords:
Pulmonary fibrosis;
Bleomycin;
Rats;
IL-4
- From:
Journal of Chongqing Medical University
1987;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To detect the expression of IL-4 in bleomycin-induced pulmonary fibrosis in rats and to study the effect of IL-4 in pulmonary fibrosis pathogenesis.Methods:Female wistar rats (170～190g weight) were treated with bleomycin(5 mg/kg weight) by intratracheal perfusion on day 0 to induce pulmonary fibrosis,while the controlled animals were only injected with normal saline (NS).The rats were killed on day 7 and 14,and lung tissue and blood serum were collected.The right lung was stained with hematoxylin-eosin.Reverse transcription polymerase chain reaction (RT-PCR) was used to detect the expression of IL-4mRNA in the left lung and ELISA was used to detect the levels of IL-4 in blood serum.Results:Alveolus inflammation was observed on day 7 and fibrosis focus was found on day 14.Compared with controlled group,the expression levels of IL-4mRNA in lung tissue and the levels of IL-4 in blood serum were elevated significantly in model groups(P
