Modulation of macrophage function stimulated with oxidized low density lipoprotein by CD4+CD25+regulatory T cells / 中华微生物学和免疫学杂志
Chinese Journal of Microbiology and Immunology
;
(12): 1124-1127, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-382774
ABSTRACT
Objective To investigate whether and how CD4 + CD25 + regulatory T cells(Tr) affect oxidized low density lipoprotein(oxLDL) induced proinflammatory response in macrophages.Methods Tr were isolated from lymphocyte suspensions by magnetic cell sorting-column and analyzed by flow cytometry.Macrophages were cultured alone,with CD4 + CD25 + Tr or CD4 + CD25 - Tr in the presence of oxLDL for 48 h.The phenotype of macrophages was determined by flow cytometry.NO production was assessed by Griess reaction an iNOS mRNA was isolated by RT-PCR.ELISA were used to measure the production of cytokine/chemokine like MCP-1,MMP-9,TNF-ct,TGF-β and IL-10 in macrophages response to oxLDL.Results Our data showed that with oxLDL challenge,the Tr modulated macrophages have decreased NO production and iNOS expression,decreased HLA-DR and CD86 expression,and down-regulated proinflammatory cytokine/chemokine production.Conclusion Tr can inhibit the proinflammatory properties of macrophages and steer macrophage differentiation toward an anti-inflammatory cytokine producing phenotype.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Microbiology and Immunology
Year:
2010
Type:
Article
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