Tumor-targeted immunotherapy by using primary adipose-derived stem cells and an antigen-specific protein vaccine

Jui Hua Lu, Bou Yue Peng, Chun Chao Chang, Navneet Kumar Dubey, Wen Cheng Lo, Hsin Chung Cheng, Joseph R. Wang, Hong Jian Wei, Win Ping Deng

研究成果: 雜誌貢獻文章

8 引文 斯高帕斯(Scopus)

摘要

Cancer is a leading cause of mortality and a major public health problem worldwide. For biological therapy against cancer, we previously developed a unique immunotherapeutic platform by combining mesenchymal stem cells with an antigen-specific protein vaccine. However, this system possesses a few limitations, such as improperly immortalized mesenchymal stem cells (MSCs) along with transfected oncogenic antigens in them. To overcome the limitations of this platform for future clinical application, we freshly prepared primary adipose-derived stem cells (ADSCs) and modified the E7’ antigen (E7’) as a non-oncogenic protein. Either subcutaneously co-inoculated with cancer cells or systemically administered after tumor growth, ADSC labeled with enhanced green fluorescent protein (eGFP) and combined with modified E7’ (ADSC-E7’-eGFP) cells showed significant antitumor activity when combined with the protein vaccine in both colon and lung cancer in mice. Specifically, this combined therapy inhibited tumor through inducing cell apoptosis. The significantly reduced endothelial cell markers, CD31 and vascular endothelial growth factor (VEGF), indicated strongly inhibited tumor angiogenesis. The activated immune system was demonstrated through the response of CD4+ T and natural killer (NK) cells, and a notable antitumor activity might be contributed by CD8+ T cells. Conclusively, these evidences imply that this promising immunotherapeutic platform might be a potential candidate for the future clinical application against cancer.
原文英語
文章編號446
期刊Cancers
10
發行號11
DOIs
出版狀態已發佈 - 十一月 15 2018

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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