Linked Life Data

18549648

Source:http://linkedlifedata.com/resource/pubmed/id/18549648

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-6-13
pubmed:abstractText
This study was aimed to investigate the effect of artificial antigen-presenting cells (aAPCs) on inducing activation and proliferation of specific T-lymphocytes through stimulating biological function of dendritic cells with aAPCs in vitro. The specific antigen of chronic myeloid leukemia CML-28 was screened as objective antigen peptide by using magnetic microbeads as vector; the CML-28 epitope sequence (Vltfaldsv) was obtained by antigen epitope prediction software; this epitope was coupled with MHC molecule and used as first signal molecule, the B7-1 molecule was used as second signal molecule; these 2 molecules simultaneously were loaded onto surface of magnetic microbeads so as to contract aAPC complex. The bone marrow mononuclear cells were derived from HLA-A2(+) healthy bone marrow donors, CD8(+) T lymphocytes were screened and co-cultured with aAPC complex. During culture the 5, 6-carboxyfluorescein diacetate succinimidyl ester (CFSE) was added and proliferation of T-lymphocytes was detected by CPSE and proliferation level of specific T lymphocytes was detected by flow cytometry. The results showed that the proliferation level of CML-28 specific T lymphocytes obviously increased in experimental group, average level was 17.34 +/- 0.65%, while average level in control was 2.25 +/- 0.43%, there was significant difference between them (p < 0.01). It is concluded that the aAPC complex can mimic human APCs in vitro, and stimulate activation and proliferation of CD8(+) specific T lymphocytes.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1009-2137
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
655-8
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
[Activation of specific T lymphocyte induced by artificial antigen presenting cell complex in vitro].
pubmed:affiliation
Deparment of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China. MHW555@21CN.COM
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't