Monocyte Chemotactic Protein-1 (MCP-1) mRNA is Down-Regulated in Human Dermal Fibroblasts by Dexamethasone: Differential Regulation by TGF-β
作者:
SlavinJ.,
UnemoriE.,
HuntT. K.,
AmentoE.,
期刊:
Growth Factors
(Taylor Available online 1995)
卷期:
Volume 12,
issue 2
页码: 151-157
ISSN:0897-7194
年代: 1995
DOI:10.3109/08977199509028961
出版商: Taylor&Francis
关键词: wound healing;transforming growth factor beta;monocyte chemotactic protein-1;dexamethasone
数据来源: Taylor
摘要:
AbstractMacrophages are a source of cytokines driving repair. Wound macrophages are derived from circulating monocytes. Monocyte chemotactic protein-1 (MCP-1) is a potent specific monocyte chemoattractant. Treatment of serum stimulated dermal fibroblasts with dexamethasone led to a dose dependent down-regulation of MCP-1 mRNA levels. Such an anti-inflammatory effect may partially explain the negative influence of glucocorticoid treatment on wound repair. Topical or parenteral treatment with TGF-βrestores healing rates in glucocorticoid treated animals. Treatment of fibroblasts cultured in serum free media with TGF-βincreased MCP-1 mRNA levels. TGF-βtreatment of fibroblasts cultured in serum also partially overcame the dexamethasone mediated decrease in MCP-1 mRNA levels. In glucocorticoid treated animals TGF-βmay stimulate repair by an indirect pro-inflammatory action following transcriptional up-regulation of MCP-1.
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