Expression of eotaxin mRNA and TNF-alpha mRNA in lung tissues of sensitized mice and modulation by anti-inflammatory drugs.
- Author:
Jun-fang DENG
1
;
Qiang-min XIE
;
Yan-mei DENG
;
Chuan-sen SHAO
;
Ji-qiang CHEN
Author Information
- Publication Type:Journal Article
- MeSH: Animals; Anti-Inflammatory Agents; pharmacology; Asthma; drug therapy; metabolism; Bronchoalveolar Lavage Fluid; cytology; Chemokine CCL11; Chemokines, CC; genetics; Dexamethasone; pharmacology; Disease Models, Animal; Eosinophils; physiology; Female; Leukocyte Count; Lung; metabolism; Male; Mice; Mice, Inbred ICR; RNA, Messenger; analysis; Reverse Transcriptase Polymerase Chain Reaction; Tumor Necrosis Factor-alpha; genetics
- From: Journal of Zhejiang University. Medical sciences 2003;32(4):283-286
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo establish determination methods of eotaxin mRNA and TNF-alpha mRNA expression in the lung tissue of mice.
METHODSEotaxin mRNA and TNF-alpha mRNA expressions were determined by semi-quantitative RT-PCR. The functional implications of eotaxin mRNA and TNF-alpha mRNA expression were examined by detecting the numbers of total leucocytes and eosinophils in bronchoalveolar lavage fluid(BALF).
RESULTEotaxin mRNA and TNF-alpha mRNA expression in lung tissue total numbers of leucocyte and numbers of eosinophil in BALF increased in sensitized mice compared with those in normal mice. Dexamethasone significantly but did not inhibit eotaxin mRNA and TNF-alpha mRNA expressions, and eosinophil infiltration in the lungs of the sensitized mice. A compound preparation of traditional Chinese medicine inhibited eotaxin mRNA and eosinophil infiltration, influenced TNF-alpha mRNA expression.
CONCLUSIONIncreased eotaxin mRNA expression in lung tissue is associated with eosinophil infiltration in BALF, which indicates that the methods of semi-quantitative RT-PCR may be useful to the study of the mechanism of antiasthmatic medicine.
