جهت دسترسی به کاربرگه ی زیر، از این لینک استفاده کنید. http://78.39.227.9/handle/Hannan/34472
Title: DA-6034 Induces [Ca2+]i Increase in Epithelial Cells
Issue Date: 2014
Description: DA-6034, a eupatilin derivative of flavonoid, has shown potent effects on the protection of gastric mucosa and induced the increases in fluid and glycoprotein secretion in human and rat corneal and conjunctival cells, suggesting that it might be considered as a drug for the treatment of dry eye. However, whether DA-6034 induces Ca2+ signaling and its underlying mechanism in epithelial cells are not known. In the present study, we investigated the mechanism for actions of DA-6034 in Ca2+ signaling pathways of the epithelial cells (conjunctival and corneal cells) from human donor eyes and mouse salivary gland epithelial cells. DA-6034 activated Ca2+-activated Cl- channels (CaCCs) and increased intracellular calcium concentrations ([Ca2+]i) in primary cultured human conjunctival cells. DA-6034 also increased [Ca2+]i in mouse salivary gland cells and human corneal epithelial cells. [Ca2+]i increase of DA-6034 was dependent on the Ca2+ entry from extracellular and Ca2+ release from internal Ca2+ stores. Interestingly, these effects of DA-6034 were related to ryanodine receptors (RyRs) but not phospholipase C/inositol 1,4,5-triphosphate (IP3) pathway and lysosomal Ca2+ stores. These results suggest that DA-6034 induces Ca2+ signaling via extracellular Ca2+ entry and RyRs-sensitive Ca2+ release from internal Ca2+ stores in epithelial cells.
open
URI: http://creativecommons.org/licenses/by-nc-nd/2.0/kr
http://ir.ymlib.yonsei.ac.kr/handle/22282913/98597
Other Identifiers: Korean Journal of Physiology & Pharmacology, Vol.18(2) : 89~94, 2014
1226-4512
OAK-2014-00677
T201401116.pdf
T201401116
10.4196/kjpp.2014.18.2.89
Appears in Collections:College of Medicine

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