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Co-delivery of tumor-derived exosomes with alpha-galactosylceramide on dendritic cell-based immunotherapy for glioblastoma

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机构: [a]Department of Neurosurgery, Chinese PLA General Hospital, Beijing 100853, China [b]Division of Cancer Immunotherapy, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Chiba 277-8577, Japan [c]Department of Radiology, Chinese PLA General Hospital, Beijing 100853, China [d]Key Laboratory of Cancer Center, Chinese PLA General Hospital, Beijing 100853, China [e]Department of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China [f]Department of Skull Base Surgery Center, Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China [g]Department of Clinical Laboratory, Weihai Municipal Hospital, Weihai 264200, China
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关键词: Glioblastoma multiforme Exosome Dendritic cells Invariant natural killer T cells Immunotherapy

摘要:
Dendritic cell (DC) vaccine-based immunotherapy for glioblastoma multiforme (GBM) has shown apparent benefit in animal experiments and early-phase clinical trials, but the survival benefit is variable. In this work, we analyzed the mechanism of the potent antitumor immune response induced in vivo by tumor-associated antigen (TAA)-specific DCs with an invariant natural killer T (iNKT) cell adjuvant in orthotopic glioblastoma-bearing rats vaccinated with tumor-derived exosomes and alpha-galactosylceramide (alpha-GalCer)-pulsed DCs. Compared with traditional tumor lysate, exosomes were utilized as a more potent antigen to load DCs. iNKT cells, as an effective cellular adjuvant activated by alpha-GalCer, strengthened TAA presentation through their interaction with DCs. Co-delivery of tumor-derived exosomes with alpha-GalCer on a DC-based vaccine showed powerful effects in glioblastoma immunotherapy. This vaccine induced strong activation and proliferation of tumor-specific cytotoxic T lymphocytes, synergistically breaking the immune tolerance and improving the immunosuppressive environment. (c) 2017 Elsevier B.V. All rights reserved.

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出版当年[2016]版:
大类 | 2 区 医学
小类 | 2 区 肿瘤学
最新[2023]版:
大类 | 1 区 医学
小类 | 2 区 肿瘤学
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出版当年[2015]版:
Q1 ONCOLOGY
最新[2023]版:
Q1 ONCOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2015版] 出版当年五年平均 出版前一年[2014版] 出版后一年[2016版]

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第一作者机构: [a]Department of Neurosurgery, Chinese PLA General Hospital, Beijing 100853, China
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通讯机构: [a]Department of Neurosurgery, Chinese PLA General Hospital, Beijing 100853, China [d]Key Laboratory of Cancer Center, Chinese PLA General Hospital, Beijing 100853, China
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