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Cytotoxicities of Tumor-specific T Lymphocytes Primed by Glioma Apoptotic Body - or Glioma Cell Lysate-pulsed Dendritic Cells
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  • Cytotoxicities of Tumor-specific T Lymphocytes Primed by Glioma Apoptotic Body - or Glioma Cell Lysate-pulsed Dendritic Cells
  • Cytotoxicities of Tumor-specific T Lymphocytes Primed by Glioma Apoptotic Body - or Glioma Cell Lysate-pulsed Dendritic Cells
저자명
Kim. Jong-Tae,Chung. Dong-Sup,Kwak. Seung-Won,Han. Young-Min,Park. Young-Sup,Kim. Moon-Chan
간행물명
Journal of Korean neurosurgical society
권/호정보
2005년|38권 2호|pp.126-131 (6 pages)
발행정보
대한신경외과학회
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정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

Objective : The choice of tumor antigen for dendritic cell[DC]-loading has still been an unresolved problem in the DC-based vaccine strategies against malignant gliomas that has not been found well-characterized tumor specific antigens. In this study, we compare tumor-specific T cell response induced by glioma apoptotic body[GAB]-pulsed DCs to response induced by glioma cell lysate-pulsed ones quantitatively. Methods : DCs generated in the presence of granulocyte macrophage-colony stimulating factor and interleukin[IL]-4 from peripheral blood mononuclear cells[PBMCs] of HLA-A2 positive healthy donors were cultured. Each GABs and glioma cell lysate generated from HLA-A2 positive T98G glioblastoma cells were co-incubated with DCs. $CD8^+$ T lymphocytes isolated from PBMCs of same donors were cultured in media containing IL-2 and either stimulated by GAB- or lysate-pulsed DCs three times at a weekly interval. The interferon[IFN]-${gamma}$ concentrations of each cell culture supernate were measured by enzyme immunoassay technique. Cytolytic activity of the generated cytotoxic $CD8^+$ T cells either stimulated with GAB- or lysate-pulsed DCs was determined by a standard 4-h $^{51}Cr$-release assay. Results : IFN-${gamma}$ production and cytolytic activity of effector T cells stimulated by GAB-pulsed DCs were significantly higher than those of T cells stimulated by lysate-pulsed ones. Conclusion : These results indicate the choice of antigen is a critical determinant in the induction of antitumor immunity against malignant glioma. Antigen preparations from GABs represent a promising alternative to glioma cell lysate in DC-based glioma vaccine strategies.