DNA and Adenovirus Tumor Vaccine Targeting Truncated Survivin Generates Specific Immune Responses an

来源 :BITs 3rd Annual World Cancer Congress-2012(2012第五届世界癌症大会) | 被引量 : 0次 | 上传用户:himiro
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Survivin is overexpressed in major types of cancer and is considered an ideal "universal" tumor associated antigen that can be targeted by immunotherapeutic vaccines.However, its anti-apoptosis function raises certain safety concerns:Here, a new truncated human survivin, devoid of the anti-apoptosis function, was generated as a candidate tumor vaccine.Interleukin 2 has been widely used as an adjuvant for vaccination against various diseases.Meanwhile, the DNA prime and recombinant adenovirus (rAd) boost heterologous immunization strategy has been proven to be highly effective in enhancing immune responses.Therefore, the efficacy of a new cancer vaccine based on a truncated form of survivin, combined with IL-2 and DNA prime and rAd boost, was tested.As prophylaxis, immunization with the DNA vaccine alone resulted in a weak immune response and modest anti-tumor effect, whereas the tumor inhibition ratio with the DNA vaccine administered with IL-2 increased to 89% and was further increased to nearly 100% by rAd boosting.Moreover, complete tumor rejection was observed in 5 of 15 mice.Efficacy of the vaccine administered therapeutically was enhanced by nearly 300% when combined with carboplatin.These results indicated that vaccination with a truncated survivin vaccine using DNA prime-rAd boost combined with IL-2 adjuvant and carboplatin represents an attractive strategy to overcoming immune tolerance to tumors and has potential therapeutic benefits in melanoma cancer.
其他文献
Activating transcription factor 1 (ATF1) overexpression correlates with tumor progression in multiple tumors, and yet the involvement of ATF1 in gastrointestinal cancer development and progression rem
会议
The aim of our study was to investigate the antitumour effects of xanthoceraside, a new triterpenoid saponin, in four kinds of cancer cells in vitro and the mechanism of the induced cytotoxicity on A3
会议
The changing demographic in western society is signalling changes in the profile of caregiving.Examination of the role of friends amongst a randomized population-based survey of caregivers of people w
会议
OBJECTIVE: To evaluate the efficacy of computed tomography(CT) guided cryoablation in treatment of lung cancer.METHODS: From Jan 2002 to Apr 2006, 816 patients with primary or metastatic lung cancer w
Head and neck cancer is the fifth most common cancer in the Nordic countries.This cancer has a profound impact on an individuals physical and psychosocial functioning since it involves changes in eati
会议
Human DNA repair protects the integrity of the genome and ensures the general and specialized functions of cells,thus preventing the carcinogenesis.Consequently, differences in DNA repair efficiency p
会议
Cisplatin is a widely used cancer chemotherapeutic agent for the management of breast, metastatic ovarian, testicular,lung and neuroblastoma.A major adverse effect occurring in one of every three pati
会议
Spinal cord compression is a dire complication of cancer that can occur at anytime in the course of neoplastic disease from initial presentation to years after initial diagnosis.The neurologic sequela
会议
The polymethoxyflavones (PMFs) found in citrus peels are a complex family of natural compounds reported to exert a variety of biological effects in vitro and in vivo including anti-tumor, anti-inflamm
会议
The Rehabilitation & Exercise Oncology Program (REOP) has established the infrastructure and operational resources for translation of significant research on the benefits of exercise for patients with
会议