Linked Life Data

15541364

Source:http://linkedlifedata.com/resource/pubmed/id/15541364

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-11-15
pubmed:abstractText
We have investigated whether arachidonic acid could regulate tissue transglutaminase (tTGase) via intracellular reactive oxygen species (ROS) in NIH3T3 cells. tTGase was identified in NIH3T3 cells by Western blot and confocal microscopy. Arachidonic acid elevated in situ tTGase activity in dose- and time-dependent manners with a maximal level at 1h, and ROS scavengers, N-(2-mercaptopropionyl)glycine and catalase, blocked the tTGase activation by arachidonic acid. The activation of tTGase by arachidonic acid was largely inhibited by transfection of tTGase siRNA. The role of intracellular ROS in the activation of in situ tTGase was supported by the activation of in situ tTGase by exogenous H(2)O(2). Arachidonic acid stimulated the formation of stress fibers in a dose- and time-dependent manner, and the ROS scavengers suppressed the arachidonic acid-induced formation of stress fibers. These results suggested that the activation of in situ tTGase and stress fiber formation by arachidonic acid was mediated by intracellular ROS in NIH3T3 cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
17
pubmed:volume
325
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
819-26
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Arachidonic acid activates tissue transglutaminase and stress fiber formation via intracellular reactive oxygen species.
pubmed:affiliation
Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chunchon, Kangwon-do 200-701, Republic of Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't