Linked Life Data

8902881

Source:http://linkedlifedata.com/resource/pubmed/id/8902881

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1997-2-24
pubmed:abstractText
Interleukin-4 (IL-4) is an important cytokine in the allergic inflammation associated with atopic asthma. Interleukin-13 shares many of the biological effects of IL-4, and the evidence suggests that the expression of these two cytokine genes may be coregulated. We have investigated the expression of IL-13 and IL-4 mRNA in the bronchial mucosa of nine stable atopic asthmatics and 10 normal controls, characterized the major cellular source of IL-13 mRNA, and examined the colocalization of IL-13 and IL-4 mRNA. Endobronchial biopsies were obtained and examined for IL-13 and IL-4 mRNA using radiolabeled in situ hybridization. The number of positive cells per millimeter of basement membrane for both IL-13 and IL-4 mRNA was increased significantly in the bronchial mucosa of atopic asthmatics compared to normal controls (p < .001). In the atopic asthmatics, the expression of IL-13 was significantly greater than that for IL-4 (p < .01). In these subjects, 90% of the IL-13 mRNA-positive cells were CD3-positive T cells. Furthermore, although 100% of IL-4-positive cells also expressed IL-13 mRNA, only 60% of IL-13-positive cells also expressed IL-4. These results demonstrate that, in mild atopic asthma, IL-13 and IL-4 are coexpressed and that the upregulation of IL-13 expression is greater than that of IL-4. Our data support the role of IL-13 in the allergic inflammation present in atopic asthma.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1081-650X
pubmed:author
pubmed:issnType
Print
pubmed:volume
108
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
368-73
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Interleukin-13 and interleukin-4 are coexpressed in atopic asthma.
pubmed:affiliation
Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't