Abstract:
:AFTIR (after flowing through immobilized receptor) is a novel method for screening herbal extracts for pharmaceutical properties. Using AFTIR, we identified Cynarin in Echinacea purpurea by its selective binding to chip immobilized CD28, a receptor of T-cells, which is instrumental to immune functioning. The results of surface plasma resonance show that binding between immobilized CD28 and Cynarin is stronger than the binding between CD28 and CD80, a co-stimulated receptor of antigen presenting cells. Cynarin's function was verified by its ability to downregulate CD28-dependent interleukin-2 (IL-2) expression in a T-cell culture line. AFTIR offers promise as an efficient screening method for herbal medicines.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Dong GC,Chuang PH,Forrest MD,Lin YC,Chen HMdoi
10.1021/jm0509039keywords:
subject
Has Abstractpub_date
2006-03-23 00:00:00pages
1845-54issue
6eissn
0022-2623issn
1520-4804journal_volume
49pub_type
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