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자료유형
학술저널
저자정보
Moon Cheol Kang (Pohang University of Science and Technology(POSTECH)) Han Wook Park (Pohang University of Science and Technology(POSTECH)) Dong-Hoon Choi (Korea Bio Park) Young Woo Choi (Pohang University of Science and Technology(POSTECH)) Yunji Park (Pohang University of Science and Technology (POSTECH)) Young Chul Sung (Pohang University of Science and Technology (POSTECH)) Seung-Woo Lee (Pohang University of Science and Technology (POSTECH))
저널정보
대한면역학회 Immune Network Immune Network Vol.17 No.5
발행연도
2017.10
수록면
343 - 351 (9page)

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초록· 키워드

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Developing a novel vaccine that can be applied against multiple strains of influenza virus is of utmost importance to human health. Previously, we demonstrated that the intranasal introduction of Fc-fused IL-7 (IL-7-mFc), a long-acting cytokine fusion protein, confers long-lasting prophylaxis against multiple strains of influenza A virus (IAV) by inducing the development of lung-resident memory-like T cells, called T<SUB>RM</SUB>-like cells. Here, we further investigated the mechanisms of IL-7-mFc-mediated protective immunity to IAVs. First, we found that IL-7-mFc treatment augments the accumulation of pulmonary T cells in 2 ways: recruiting blood circulating T cells into the lung and expanding T cells at the lung parenchyma. Second, the blockade of T cell migration from the lymph nodes (LNs) with FTY720 treatment was not required for mounting the protective immunity to IAV with IL-7-mFc, suggesting a more important role of IL-7 in T cells in the lungs. Third, IL-7-mFc treatment also recruited various innate immune cells into the lungs. Among these cells, plasmacytoid dendritic cells (pDCs) play an important role in IL-7-mFc-mediated protective immunity through reducing the immunopathology and increasing IAV-specific cytotoxic T lymphocyte (CTL) responses. In summary, our results show that intranasal treatment with IL-7-mFc modulates pulmonary immune responses to IAV, affecting both innate and adaptive immune cells.

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ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2018-517-001400703