项目名称: 新型胶质瘤复合抗原DC疫苗抗肿瘤免疫的功能研究
项目编号: No.81472347
项目类型: 面上项目
立项/批准年度: 2015
项目学科: 医药、卫生
项目作者: 周良辅
作者单位: 复旦大学
项目金额: 70万元
中文摘要: 胶质母细胞瘤是常见的恶性脑肿瘤,经标准化治疗后仍复发,5年生存率不足10%,是当今神经肿瘤的巨大挑战。近来,基于DCs 的免疫治疗显示了诱人的前景,但仍然存在较大挑战。课题组拟在前期基础上,提出科学假设新型胶质瘤复合抗原DC疫苗抗肿瘤免疫的功能研究。用研发的新型脑胶质瘤URGCP/HSP47/EGFRVIII/SOX-2/WT1 复合抗原致敏DCs;CD40 和TLR 配体激动剂激活DCs;结合COX-2 阻断剂消减肿瘤微环境的髓样抑制细胞MDSCs。通过经典的病人来源胶质瘤PDC 体外模型和小鼠颅内模型研究新型复方鸡尾酒DC 疫苗对胶质瘤的抗肿瘤免疫应答。本课题的实施将优化DC 疫苗起始阶段抗原复合;DC活化阶段信号不足,效应阶段攻击力量低下的细胞免疫三级火箭系统。揭示复方新疫苗对脑胶质瘤PDX、小鼠颅内模型的作用,最终为实现DC疫苗的脑胶质瘤临床应用提供重要依据。
中文关键词: C15_脑;中枢神经系统肿瘤;抗原;疫苗
英文摘要: Glioblastomas, the most common malignant brain tumor, are the greatest challenge for neuro-oncologist, with 5 year survival rate less than 10% although undergoing standard treatment. Recently, DC vaccine immunotherapy shows attractive prospect,there were still limits for clinical translation. Based on previous studies, we showed scientific hypothesis for the anti-tumor immune role of new compound antigen DC vaccine in glioma. We develop new glioma antigens, including URGCP/HSP47/EGFRVIII/SOX-2/WT1 to stimulate DCs; CD40 and TLR ligand agonists to enhance the activation of DCs; combined with cox-2 inhibitors to reduce the MDSCs in tumor microenvironment. At last we will study the role and mechanism of new DC vaccine both in PDC vitro and mice vivo model. This study will innovate the design of DC vaccine in glioma, reveals the role of new DC vaccine, eventually contribute for comprehensive immune therapy for glioma in future.
英文关键词: Glioma;antigen;vaccine