[논문]Enhancement of antitumor effect using dendritic cells activated with natural killer cells in the presence of Toll-like receptor agonist

Pham, Thanh Nhan Nguyen; Hong, Cheol-Yi; Min, Jung-Joon; Rhee, Joon-Haeng; Nguyen, Truc-Anh Thi; Park, Byoung-Chul; Yang, Deok-Hwan; Park, Young-Kyu; Kim, Hyeong-Rok; Chung, Ik-Joo; Kim, Hyeoung-Joon; Lee, Je-Jung

doi:10.3858/emm.2010.42.6.042

[국내논문] Enhancement of antitumor effect using dendritic cells activated with natural killer cells in the presence of Toll-like receptor agonist 원문보기

Experimental & molecular medicine : EMM, v.42 no.6, 2010년, pp.407 - 419

Pham, Thanh Nhan Nguyen (Research Center for Cancer Immunotherapy Chonnam National University Hwasun Hospital) , Hong, Cheol-Yi (Research Center for Cancer Immunotherapy Chonnam National University Hwasun Hospital) , Min, Jung-Joon (Department of Nuclear Medicine Chonnam National University Medical School) , Rhee, Joon-Haeng (Department of Microbiology Chonnam National University Medical School) , Nguyen, Truc-Anh Thi (Research Center for Cancer Immunotherapy Chonnam National University Hwasun Hospital) , Park, Byoung-Chul (Korea Research Institute of Bioscience and Biotechnology (KRIBB)) , Yang, Deok-Hwan (Research Center for Cancer Immunotherapy Chonnam National University Hwasun Hospital) , Park, Young-Kyu (Research Center for Cancer Immunotherapy Chonnam National University Hwasun Hospital) , Kim, Hyeong-Rok (Department of Surgery Chonnam National University Medical School) , Chung, Ik-Joo (Research Center for Cancer Immunotherapy Chonnam National University Hwasun Hospital) , Kim, Hyeoung-Joon (Department of Hematology-Oncology Chonnam National University Medical School) , Lee, Je-Jung (Research Center for Cancer Immunotherapy Chonnam National University Hwasun Hospital)

Abstract ▼ AI-Helper

Dendritic cells (DCs) play a role in natural killer (NK) cell activation, while NK cells are also able to activate and mature DCs. Toll-like receptors (TLRs) on the surface of DCs and NK cells induce the maturation and activation of these cells when engaged with their cognate ligand. We investigated to generate potent DCs by maturation with NK cells in the presence of TLR agonist in vitro and tested the efficacy of these DC vaccinations in mouse colon cancer model. The optimal ratios of DCs versus NK cells were 1:1 to 1:2. Immature DCs were mature with NK cells in the presence of lipopolysaccharide, which is TLR4 agonist, and further addition of IL-2 induced phenotypically and functionally mature bone marrow-derived DCs. These potent DCs exhibited not only high expression of several costimulatory molecules and high production of IL-12p40 and IL-12p70, but also high allogeneic T cells stimulatory capacity, and the induction of the high activities to generate tumor-specific CTLs. Consistently, vaccination with these DCs efficiently inhibited CT-26 tumor growth in mouse colon cancer model when compared to other vaccination strategies. Interestingly, combination therapy of these DC-based vaccines and with low-dose cyclophosphamide showed dramatic inhibition effects of tumor growth. These results suggest that the DCs maturated with NK cells in the presence of TLR agonist are potent inducer of antitumor immune responses in mouse model and may provide a new source of DC-based vaccines for the development of immunotherapy against colon cancer.

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참고문헌 (38)

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[국내논문] Enhancement of antitumor effect using dendritic cells activated with natural killer cells in the presence of Toll-like receptor agonist 원문보기

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[국내논문] Enhancement of antitumor effect using dendritic cells activated with natural killer cells in the presence of Toll-like receptor agonist 원문보기

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