Effects of cigarrete smoke extract and lipopolysaccharid e on the expression of transforming growth factor-?_ 1 mRNA and protein in human embryonic lung fibroblasts / 中国病理生理杂志
Chinese Journal of Pathophysiology
;
(12)2000.
Article
in Chinese
| WPRIM
| ID: wpr-521504
ABSTRACT
AIM:
To examine the effects of cigarette smo ke extract (CSE) and lipo polysaccharide (LPS) on the production of transforming growth factor-? 1 (TGF- ? 1 ) mRNA and protein in cultured human embryonic lung fibroblasts (HELF).METHODS:
The cultured HELF were incubated with CSE, LPS or CSE in com bination with LP S for 24 hours at 37℃, respectively. The total RNA was extracted from the cells . The expression levels of TGF-? 1 mRNA were evaluated by reverse transcription - p olymerase chain reaction (RT-PCR). The mRNA levels of TGF-? 1 were corrected by GAPDH transcripts, and TGF-? 1 protein levels were determined by immunocytoch emistry.RESULTS:
CSE stimulated the TGF-? 1 mRNA expression i n HELF at lower concentr ati ons (1∶50 and 1∶25)( P 0.05). LPS enhanced TGF-? 1 mRNA levels in HELF at a ll three doses (0.1 mg/L, 1 mg/L, and 10 mg/L)( P
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Pathophysiology
Year:
2000
Type:
Article
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