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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-9-24
pubmed:abstractText
The novel cytokine interferon-gamma-inducing factor ("interleukin-18") is produced by macrophage-like cells in mice with endotoxin shock and induces the production of interferon-gamma by T cells in vitro. To determine the physiological role for mouse interferon-gamma-inducing factor, we studied its tissue distribution in several organs (intestine, spleen, thymus, kidney, and liver) in healthy mice of different ages, including fetal stages. Activity of the cytokine in the organ extracts of adult mice was measured by enzyme-linked immunosorbent assay, and the cellular distribution of interferon-gamma-inducing factor in organs from fetal and adult mice was determined by immunohistochemistry. Intestinal extracts of adult mice showed the highest concentrations among the organs studied. Other organ extracts of adult mice showed lower concentrations of the cytokine. Immunohistochemical analysis revealed that interferon-gamma-inducing factor was localized in the cytoplasm of intestinal epithelial cells from fetal and adult mice. These results show for the first time that intestinal epithelial cells may be the main producers of interferon-gamma-inducing factor under normal physiological conditions and suggest that its constitutive expression in intestinal epithelial cells may have an important role in the induction of mucosal immunity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0302-766X
pubmed:author
pubmed:issnType
Print
pubmed:volume
289
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
499-503
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Immunohistochemical and immuno-electron-microscopic detection of interferon-gamma-inducing factor ("interleukin-18") in mouse intestinal epithelial cells.
pubmed:affiliation
Fujisaki Institute, Hayashibara Biochemical Laboratories, 675-1, Fujisaki, Okayama 702, Japan.
pubmed:publicationType
Journal Article