Linked Life Data

19281832

Source:http://linkedlifedata.com/resource/pubmed/id/19281832

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-5-12
pubmed:abstractText
Histone acetylation regulated by histone acetyltransferases (HATs) and histone deacetylases (HDACs) plays a critical role in the expression of inflammatory genes, such as vascular cell adhesion molecule-1 (VCAM-1). Oxidative processes have been shown to induce VCAM-1 expression. Here, we investigated the mechanisms underlying IL-1beta-induced VCAM-1 expression in human tracheal smooth muscle cells (HTSMCs). Our results showed that IL-1beta enhanced HTSMCs-monocyte adhesion through up-regulation of VCAM-1, which was inhibited by pretreatment with selective inhibitors of PKCalpha (Gö6976), c-Src (PP1), NADPH oxidase [diphenylene iodonium (DPI) and apocynin (APO)], intracellular calcium chelator (BAPTA/AM), PI-PLC (U73122), CaM (calmidazolium chloride), CaM kinase II (KN62), p300 (garcinol), NF-kappaB (Bay11-7082), HDAC (trichostatin A), and ROS scavenger [N-acetyl-L-cysteine (NAC)] or transfection with siRNAs of MyD88, PKCalpha, Src, p47(phox), p300, and HDAC4. Moreover, IL-1beta stimulated NF-kappaB and CaMKII phosphorylation through MyD88-dependent PI-PLC/PKCalpha/c-Src/ROS and PI-PLC/Ca2+/CaM pathways, respectively. Activation of NF-kappaB and CaMKII may eventually lead to the acetylation of histone residues and phosphorylation of histone deacetylases. These findings suggested that IL-1beta induced VCAM-1 expression via these multiple signaling pathways in HTSMCs. Blockade of these pathways may reduce monocyte adhesion via VCAM-1 suppression and attenuation of the inflammatory responses in airway diseases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1096-0333
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
237
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
8-21
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Activation of ROS/NF-kappaB and Ca2+/CaM kinase II are necessary for VCAM-1 induction in IL-1beta-treated human tracheal smooth muscle cells.
pubmed:affiliation
Department of Internal Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't