Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1999-10-25
pubmed:abstractText
Recent studies support nuclear factor-kappaB (NF-kappaB) as a critical transcription factor in inflammatory bowel disease. We examined NF-kappaB and its inhibitors, IkappaB-alpha and IkappaB-beta, in the colitis of interleukin-2 deficient (IL-2-/-) mice at the ages of 5, 10, and 15 weeks and compared them with those of age-matched wild-type mice. Colon levels of nuclear NF-kappaB and mRNA for NF-kappaB responsive cytokines interleukin-1beta and tumor necrosis factor-alpha were markedly increased in interleukin-2-/-mice. Colon interleukin-1beta protein levels were significantly elevated, consistent with increased interleukin-1beta mRNA, whereas tumor necrosis factor-alpha protein levels were either lower than those of the control group or did not differ. Protein levels of the immunomodulatory cytokine interleukin-10 were diminished. The NF-kappaB responsive IkappaB-alpha was also increased, mirroring NF-kappaB activation. In contrast, IkappaB-beta levels did not differ from those of wild-type mice in the 5- and 10-week groups and were only mildly increased in the 15-week group. Serum amyloid A, an acute phase protein that also is NF-kappaB-responsive, was dramatically elevated in the serum of interleukin-2-/- mice and correlated with the severity of the colitis. These data support a role for NF-kappaB in the pathogenesis of intestinal inflammation in interleukin-2-/- mice. The measurement of NF-kappaB in colon tissue samples may provide a sensitive means of assessing the state of activation of the mucosal immune response, and serum amyloid A appears to be a reliable biochemical marker of disease activity.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0022-2143
pubmed:author
pubmed:issnType
Print
pubmed:volume
134
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
378-85
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:10521084-Acute-Phase Reaction, pubmed-meshheading:10521084-Animals, pubmed-meshheading:10521084-Biological Markers, pubmed-meshheading:10521084-Cell Nucleus, pubmed-meshheading:10521084-Colitis, Ulcerative, pubmed-meshheading:10521084-Cytosol, pubmed-meshheading:10521084-Female, pubmed-meshheading:10521084-Gene Expression, pubmed-meshheading:10521084-Genotype, pubmed-meshheading:10521084-I-kappa B Proteins, pubmed-meshheading:10521084-Interleukin-1, pubmed-meshheading:10521084-Interleukin-10, pubmed-meshheading:10521084-Interleukin-2, pubmed-meshheading:10521084-Male, pubmed-meshheading:10521084-Mice, pubmed-meshheading:10521084-Mice, Inbred C57BL, pubmed-meshheading:10521084-Mice, Mutant Strains, pubmed-meshheading:10521084-NF-kappa B, pubmed-meshheading:10521084-RNA, Messenger, pubmed-meshheading:10521084-Rectal Prolapse, pubmed-meshheading:10521084-Tumor Necrosis Factor-alpha
pubmed:year
1999
pubmed:articleTitle
Increased nuclear factor-kappaB activation in colitis of interleukin-2-deficient mice.
pubmed:affiliation
Department of Internal Medicine, University of Kentucky, Lexington, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.