Linked Life Data

11902829

Source:http://linkedlifedata.com/resource/pubmed/id/11902829

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2002-3-20
pubmed:abstractText
IkappaB kinase (IKK) plays a key role in the regulation of nuclear factor kappaB (NF-kappaB). We previously demonstrated the expression of two kinases, IKK1 and IKK2, in fibroblast-like synoviocytes (FLS) and determined their functional consequences for inflammatory gene expression in vitro and in vivo. Recently, a novel inducible IkappaB kinase has been described, namely, IKK-i or IKK-epsilon, which is functionally and structurally distinct from constitutively expressed IKK1 and IKK2. Therefore, we investigated the expression and regulation of this novel kinase in FLS from patients with rheumatoid arthritis and osteoarthritis. Interestingly, constitutive gene expression and protein expression were observed in all cell lines examined. TNFalpha stimulation for 24 h increased IKK-i expression 7.2 +/- 1.8-fold in FLS (P < 0.02). IL-1 also significantly increased IKK-i gene expression. Time course experiments demonstrated that IKK-i gene expression increased within 3 h of TNFalpha stimulation and persisted for at least 24 h. Dose-response studies showed that as little as 1 ng/ml of TNFalpha increased IKK-i gene expression. Constitutive IKK-1 gene expression was also noted in rheumatoid arthritis, osteoarthritis, and normal synovium. This is the first report demonstrating constitutive expression and cytokine regulation of this novel kinase in primary human synovial cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0008-8749
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
214
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
54-9
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Expression and regulation of inducible IkappaB kinase (IKK-i) in human fibroblast-like synoviocytes.
pubmed:affiliation
Division of Rheumatology, Allergy, and Immunology, La Jolla, California 92093, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't