Detailed Information

Cited 3 time in webofscience Cited 2 time in scopus
Metadata Downloads

Acid-induced COX-2 Expression and Prostaglandin E-2 Production via Activation of ERK1/2 and p38 MAPK in Cultured Feline Esophageal Smooth Muscle Cells

Authors
Woo, Jae GwangPark, Sun YoungLim, Jae ChunJoo, Min-JaeKim, Hak RimSohn, Uy Dong
Issue Date
Dec-2011
Publisher
PHARMACEUTICAL SOC KOREA
Keywords
Smooth muscle cell; Acid; Cyclooxygenase-2; Prostaglandin E-2; MAPK; Esophagitis
Citation
ARCHIVES OF PHARMACAL RESEARCH, v.34, no.12, pp 2131 - 2140
Pages
10
Journal Title
ARCHIVES OF PHARMACAL RESEARCH
Volume
34
Number
12
Start Page
2131
End Page
2140
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/21089
DOI
10.1007/s12272-011-1217-6
ISSN
0253-6269
1976-3786
Abstract
Cyclooxygenase (COX)-2 is known to play an important role in inflammatory conditions such as reflux esophagitis resulting from acid reflux. In this study, we tested whether an acidic medium (pH 4.0) induces an increase in COX-2 expression or PGE(2) production, and explored the implication of mitogen-activated protein kinases (MAPKs) activation in these responses in cultured cat esophageal smooth muscle cells. Acidic cytotoxicity was assessed and expression changes in COXs or phosphorylated MAPKs were analyzed by Western blotting. PGE(2) production was measured by immunoassay. No significant decrease in cell viability was observed for 6 h exposure to acidic medium. COX-2 expression and PGE(2) production significantly increased to maximal levels at 6 h exposure to acidic medium. The cells also exhibited significant activation of ERK1/2 and p38 MAPK, but not JNK within 10 min under acidic medium. The increments of COX-2 expression and PGE(2) production by acidic medium were decreased by pretreatment with PD98059 or SB202190, respectively. These results suggest that acidic environments may enhance the COX-2 expression and PGE(2) production through activation of ERK1/2 and p38 MAPK in the cultured cat esophageal smooth muscle cells.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Pharmacy > School of Pharmacy > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Altmetrics

Total Views & Downloads

BROWSE