Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2006-3-16
pubmed:abstractText
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-2623
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
49
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1845-54
pubmed:dateRevised
2009-10-8
pubmed:meshHeading
pubmed-meshheading:16539370-Animals, pubmed-meshheading:16539370-Antigens, CD28, pubmed-meshheading:16539370-Antigens, CD80, pubmed-meshheading:16539370-Chromatography, High Pressure Liquid, pubmed-meshheading:16539370-Cinnamates, pubmed-meshheading:16539370-Echinacea, pubmed-meshheading:16539370-Humans, pubmed-meshheading:16539370-Immunoglobulin Fc Fragments, pubmed-meshheading:16539370-Immunoglobulin G, pubmed-meshheading:16539370-Immunosuppressive Agents, pubmed-meshheading:16539370-Interleukin-2, pubmed-meshheading:16539370-Jurkat Cells, pubmed-meshheading:16539370-Mice, pubmed-meshheading:16539370-Plant Extracts, pubmed-meshheading:16539370-Recombinant Fusion Proteins, pubmed-meshheading:16539370-Signal Transduction, pubmed-meshheading:16539370-Surface Plasmon Resonance, pubmed-meshheading:16539370-T-Lymphocytes
pubmed:year
2006
pubmed:articleTitle
Immuno-suppressive effect of blocking the CD28 signaling pathway in T-cells by an active component of Echinacea found by a novel pharmaceutical screening method.
pubmed:affiliation
Institute of BioAgricultural Sciences, Academia Sinica, Taipei, Taiwan 115, Republic of China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't