Abstract:
:Astragali Radix (AR), is a popular herbal medicine used to treat allergic diseases in Korea, Japan and China. Our study examined the effect of an AR ethanol extract on both in vitro and in vivo murine CD4 T cells' differentiation into Th1 and Th2 subsets. CD4 T cells from Balb/c mice were activated with anti-CD3/anti-CD28 mAb in the presence of AR for 2 d. AR treated cells showed an elevated level of IL-4 but a reduced level of IFN-gamma secretion. In addition, in vitro Th1/Th2 polarization experiments revealed that AR enhanced the levels of IL-4 in Th2 cells but reduced the levels of IFN-gamma in Th1 cells. To elucidate the effects of AR in Th1/Th2 lineage development during the in vivo condition, AR was administrated orally to BALB/c mice. The results demonstrated that AR administration significantly increased IL-4 production in both the serum and supernatant of splenocyte culture, while IFN-gamma secretion was diminished upon in vivo activation with anti-CD3 antibody. Our data clearly indicates that AR selectively alters Th1/Th2 cytokine secretion patterns and provides the pharmacological basis for AR's clinical applications.
journal_name
Biol Pharm Bulljournal_title
Biological & pharmaceutical bulletinauthors
Kang H,Ahn KS,Cho C,Bae HSdoi
10.1248/bpb.27.1946subject
Has Abstractpub_date
2004-12-01 00:00:00pages
1946-50issue
12eissn
0918-6158issn
1347-5215pii
JST.JSTAGE/bpb/27.1946journal_volume
27pub_type
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