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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2005-10-3
pubmed:abstractText
The specific anti-tumor immune response induced by mouse bone marrow dendritic cells (DCs) transfected with recombinant adenovirus carrying mutant k-ras genes was investigated. DCs were generated from mouse bone marrow in the presence of rmGM-CSF (3.3 ng/mL) and rmIL-4 (1.3 ng/mL) and detected by FACS, and then transfected with the recombinant adenovirus encoding mutant k-ras gene. The efficacy of transfection and T cell stimulating activity of DCs were detected. CTL activity of the mice vaccinated with DCs was observed. The results showed that DCs had dendritic veiled morphology. BmDCs highly expressed B7-1 (80%), B7-2 (77%), MHC II (70%), CD11c (65%), CD40 (70%) and CD54 (96%) with FACS, and no significant difference in the expression was observed before and after the transfection (P > 0.05). The DCs transfected by mutant k-ras gene could significantly stimulate lymphocytes proliferation as compared with those transfected by Ad-c or non-modified DCs (P < 0.05). DC vaccine transfected by mutant k-ras gene could induce CTL activity against Lewis lung cancer, but not against B16. The specific cytotoxicity against Lewis lung cancer in Ad-k-ras/12-transduced DC group was significantly higher than those in the control, vector and non-transfected DCs groups (P < 0.05). It was concluded that special antitumor response could be induced by DCs transfected with recombinant adenovirus carrying mutant k-ras genes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1672-0733
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
378-81
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
In vitro anti-tumor immune response induced by dendritic cells transfected with recombinant adenovirus carrying mutant K-ras genes.
pubmed:affiliation
Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't