Abstract:
:Astragalus mongholicus polysaccharides(ASP) isolated from one of the Chinese herbs-A. mongholicus which are known to have a variety of immunomodulatory activity. However, little is known about their immunomodulatory effects on murine bone marrow (BM)-derived dendritic cells (DC). DC are professional antigen presenting cells, which are pivotal for initiation of primary immune response. In this study, the regulatory effects of ASP on maturation and function of cultured murine BM-derived DC were investigated in vitro. ASP (10, 50, 100, 250 microg/ml) could increase the co-expression of CD-11c and MHC class II molecules on DC surface, and the 100 microg/ml is the optimal dose. The ability of unstimulated DC to uptake FITC-dextran was higher than that of ASP- or LPS-treated DC. We analyzed the concentration of IL-12 secreted by DC using ELISA. ASP-treated DC secreted a higher level of IL-12 than untreated DC. And ASP- or LPS-treated DC displayed a more mature morphology, with long protrusions, while untreated-DC displayed shorter protrusions than stimulated DC.
journal_name
Int Immunopharmacoljournal_title
International immunopharmacologyauthors
Shao P,Zhao LH,Zhi-Chen,Pan JPdoi
10.1016/j.intimp.2006.02.009subject
Has Abstractpub_date
2006-07-01 00:00:00pages
1161-6issue
7eissn
1567-5769issn
1878-1705pii
S1567-5769(06)00067-1journal_volume
6pub_type
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