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골수성백혈병에서 배양한 수지상세포(Dendritic Cell)에 대한 종양항원 감작법으로 IL-12 첨가와 융합법의 효과

The Effectiveness of IL-12 Administration and Fusion on Tumor Antigen Sensitization Methods for Dendritic Cells Derived from Patients with Myelogenous Leukemia

김기원|박석영|홍영선
대한면역학회 (The Korean Association of Immunologists)|2004.03|Immune Network|제4권 제1호|pp. 38-43

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Abstract

Backgroud: Immunotherapy using dendritic cells (DC) loaded with tumor antigens may represent a potentially effective method for inducing antitumor immunity. We evaluated the effectiveness of DC-based antitumor immune response in various conditions. Methods: DC were cultured from peripheral blood mononuclear cells (PBMNC) in myelogenous leukemia (ML) and lysates of autologous leukemic cells are used as tumor antigen. The effectiveness of interleukin-12 (IL-12) and CD40L (CD154) on the antigen presenting function of lysates-loaded DC was analyzed by proliferation, cytokine production, and cytotoxicity tests with activated PBMNC (mainly lymphocytes). For generating antigen-loaded DC, direct fusion of DC with ML was studied. Results: Antigen loaded DC induced significantly effective antitumor immune response against autologous leukemic cells. Administration of IL-12 on the DC based antitumor immune response showed higher proliferation activity, IFN-γ production, and cytotoxic activity of PBMNC. Also, fused cell has a potent antitumor immune response. Conclusion: We conclude that lysates-loaded DC with IL-12 may be effectively utilized as inducer of antitumor immune reaction in ML and in vivo application with DC-based antitumor immunotherapy or tumor vaccination seems to be feasible. (Immune Network 2004;4(1):38-43)

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