Asian Dust Particles Induce TGF-beta1 via Reactive Oxygen Species in Bronchial Epithelial Cells / 결핵및호흡기질환
Tuberculosis and Respiratory Diseases
;
: 84-92, 2012.
Article
in English
| WPRIM
| ID: wpr-105221
ABSTRACT
BACKGROUND:
Asian dust storms can be transported across eastern Asia. In vitro, Asian dust particle-induced inflammation and enhancement of the allergic reaction have been observed. However, the fibrotic effects of Asian dust particles are not clear. Production of transforming growth factor beta1 (TGF-beta1) and fibronectin were investigated in the bronchial epithelial cells after exposure to Asian dust particulate matter (AD-PM10).METHODS:
During Asian dust storm periods, air samples were collected. The bronchial epithelial cells were exposed to AD-PM10 with and without the antioxidant, N-acetyl-L-cysteine (NAC). Then TGF-beta1 and fibronectin were detected by Western blotting. The reactive oxygen species (ROS) was detected by the measurement of dicholorodihydrofluorescin (DCF), using a FACScan, and visualized by a confocal microscopy.RESULTS:
The expression of TGF-beta1, fibronectin and ROS was high after being exposed to AD-PM10, compared to the control. NAC attenuated both TGF-beta1 and fibronectin expression in the AD-PM10-exposed the bronchial epithelial cells.CONCLUSION:
AD-PM10 may have fibrotic potential in the bronchial epithelial cells and the possible mechanism is AD-PM10-induced intracellular ROS.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Acetylcysteine
/
Blotting, Western
/
Transforming Growth Factor beta
/
Fibronectins
/
Reactive Oxygen Species
/
Asian People
/
Air Pollutants
/
Dust
/
Epithelial Cells
/
Transforming Growth Factor beta1
Limits:
Humans
Country/Region as subject:
Asia
Language:
English
Journal:
Tuberculosis and Respiratory Diseases
Year:
2012
Type:
Article
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