Dendritic cells transfected with lentiviral vector-encoding human granulocyte-macrophage colony-stimulating factor augment anti-tumour T-cell response in vitro.
Dendritic cells (DC) are professional antigen-presenting cells that can actively taken up and present tumour-derived proteins to induce a tumour-specific immune response. Granulocyte-macrophage colony-stimulating factor (GM-CSF) plays a pivotal role in the generation, sensitization, maturation and survival of DC. We charged the peripheral blood monocyte cell-derived DC with tumour lysate, and then transfected the DC with lentiviral vector-encoding human GM-CSF (hGM-CSF). The antigen-presenting capacity of the hGM-CSF-transfected DC was tested by means of the mixed lymphocyte reaction and cytotoxic T-lymphocyte assay using wild-type DC as the control. The Lenti-hGM-CSF-transfected DC was able to stimulate the proliferation of naive allogeneic T lymphocytes and to generate tumour-specific cytotoxic T lymphocytes more efficiently than the wild-type DC. This data indicates that Lenti-hGM-CSF-transfected DC could potentially be used as an effective clinical approach for cancer immunotherapy.
Department of Pathology, Qian-Fo-Shan Hospital of Shandong Province, Medical College of Shandong University, Shandong Province, Jinan, China.
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J
Cui
A L
AL
Lin
Q
Q
Liu
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Q
Sun
Z-H
ZH
Gao
D049109:Cell Proliferation; D002478:Cells, Cultured; D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000235:genetics; D003713:Dendritic Cells / Q000166:cytology / Q000276:immunology*; D005786:Gene Expression Regulation / Q000276:immunology; D018014:Gene Transfer Techniques; D005822:Genetic Vectors / Q000235:genetics; D016178:Granulocyte-Macrophage Colony-Stimulating Factor / Q000235:genetics* / Q000378:metabolism*; D057809:HEK293 Cells; D006367:HeLa Cells; D006801:Humans; D007167:Immunotherapy; D008213:Lymphocyte Activation / Q000276:immunology; D009369:Neoplasms / Q000276:immunology; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology
D018076:DNA, Complementary; D016178:Granulocyte-Macrophage Colony-Stimulating Factor