Disparate regulation of interleukin 8 gene expression from blood monocytes, endothelial cells, and fibroblasts by interleukin 4.
The role(s) of novel chemotactic cytokines as mediators in the pathogenesis of many acute and chronic disease states is becoming increasingly apparent. One of these cytokines, interleukin 8, is a product of both immune and non-immune cells. In this manuscript, we describe the suppression of IL-8 gene expression from stimulated monocytes by IL-4, while IL-4 had no suppressive effects on IL-8 gene expression from stimulated fibroblasts and endothelial cells. Our data suggest that IL-4 may function as an endogenous regulator of monocyte cytokine expression, including the chemotactic cytokine IL-8.
Department of Internal Medicine, University of Michigan, Ann Arbor.
T J
TJ
Standiford
R M
RM
Strieter
K
K
Kasahara
S L
SL
Kunkel
D002630:Chemotactic Factors / Q000096:biosynthesis / Q000097:blood / Q000235:genetics*; D004730:Endothelium, Vascular / Q000187:drug effects / Q000276:immunology*; D005347:Fibroblasts / Q000187:drug effects / Q000276:immunology; D015870:Gene Expression / Q000187:drug effects; D006801:Humans; D066298:In Vitro Techniques; D007375:Interleukin-1 / Q000494:pharmacology; D015847:Interleukin-4 / Q000494:pharmacology*; D016209:Interleukin-8; D007378:Interleukins / Q000096:biosynthesis / Q000097:blood / Q000235:genetics*; D009000:Monocytes / Q000187:drug effects / Q000276:immunology*; D011994:Recombinant Proteins / Q000494:pharmacology; D014409:Tumor Necrosis Factor-alpha / Q000494:pharmacology
D002630:Chemotactic Factors; D007375:Interleukin-1; D016209:Interleukin-8; D007378:Interleukins; D011994:Recombinant Proteins; D014409:Tumor Necrosis Factor-alpha; D015847:Interleukin-4