title: [Effects of anhydroicaritin on the immunologic function of mouse macrophages].
abstract: OBJECTIVE
  To investigate the effects of anhydroicaritin (AHI) on the immunologic function of mouse macrophages stimulated by lipopolysaccharide (LPS) in vitro and its related immunosuppressive mechanism.
  
  
  METHODS
  Mouse bone marrow-derived macrophages were isolated. Then,  the drug toxicology of different concentrations of AHI on macrophages was measured by CCK-8 assay. The amount of NO produced in macrophages was detected by Griess kit. The phagocytosis of macrophages to E.coli BioParticles was assayed by flow cytometry (FCM). The expression of CD69,  which was the marker of early activation of macrophages,  was measured by FCM combined with two-color immunofluorescent staining of cell surface antigen. Cytometric bead array (CBA) kit was used to detect the production of cytokines of macrophages stimulated by LPS.
  
  
  RESULTS
  AHI (2.5,   5,   10  μmol/L) significantly reduced the production of NO in macrophages stimulated by LPS,  and inhibited the phagocytosis of activated macrophages. The results of FCM analysis showed that AHI decreased proportions of CD69 on LPS-stimulated macrophages. Furthermore,  AHI downregulated the secretion of cytokines of LPS-induced macrophages.
  
  
  CONCLUSIONS
  AHI,  which exhibits immunosuppressive effect on the mouse macrophages stimulated by LPS,  is promising to be developed as an immunosuppressive reagent.
authors.affiliation: Analytical and Testing Center, Jinan University, Guangzhou 510632, China. xinqianglai@126.com
authors.forename: Xin-Qiang
authors.initials: XQ
authors.lastname: Lai
authors.forename: Xiu-Yan
authors.initials: XY
authors.lastname: Huang
authors.forename: Yao-Ying
authors.initials: YY
authors.lastname: Zeng
mesh_terms: D000818:Animals; D015703:Antigens, CD / Q000276:immunology / Q000378:metabolism; D000945:Antigens, Differentiation, T-Lymphocyte / Q000276:immunology / Q000378:metabolism; D002478:Cells, Cultured; D004305:Dose-Response Relationship, Drug; D004926:Escherichia coli / Q000276:immunology; D005419:Flavonoids / Q000737:chemistry / Q000494:pharmacology*; D044948:Flavonols / Q000494:pharmacology*; D005434:Flow Cytometry; D037181:Lectins, C-Type / Q000276:immunology / Q000378:metabolism; D008070:Lipopolysaccharides / Q000494:pharmacology; D008262:Macrophage Activation / Q000187:drug effects* / Q000276:immunology; D008264:Macrophages / Q000187:drug effects* / Q000276:immunology / Q000378:metabolism; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D009569:Nitric Oxide / Q000276:immunology / Q000378:metabolism; D010587:Phagocytosis / Q000187:drug effects* / Q000276:immunology; D000099192:CD69 Antigens
chemical_list: D015703:Antigens, CD; D000945:Antigens, Differentiation, T-Lymphocyte; D005419:Flavonoids; D044948:Flavonols; D037181:Lectins, C-Type; D008070:Lipopolysaccharides; D009569:Nitric Oxide; D000099192:CD69 Antigens; C499403:icaritin