An effective vaccine against colon cancer in mice: use of recombinant adenovirus interleukin-12 transduced dendritic cells.

World Journal of Gastroenterology : WJG
Xiao-Zhou HeYan-Yun Zhang

Abstract

To investigate the effect of a vaccine with recombinant adenovirus interleukin-12 (AdVIL-12) transduced dendritic cells (DCs) against colon cancer in mice. DCs and AdVIL-12 were incubated together at different time intervals and at different doses. Supernatant was collected and tested for IL-12 by enzyme-linked immunosorbent assay (ELISA). In order to determine whether tumor cell lysate-pulsed (TP) AdVIL-12/DCs enhance therapeutic potential in the established tumor model, CT26 colon tumor cells were implanted subcutaneously (s.c.) in the midflank of naive BALB/c mice. Tumor-bearing mice were injected with a vaccination of CT26 TP AdVIL-12/DCs on d 3 and 10. As a protective colon tumor model, naive BALB/c mice were immunized s.c. in their abdomens with CT26 TP AdVIL-12/DCs twice at seven day intervals. After the immunization on d 7, the mice were challenged with a lethal dose of CT26 tumor cells and survival times were evaluated. Subsequently, cytotoxic T lymphocyte (CTL) activity and interferon gamma (IFNgamma) secretion was evaluated in the immunized mice, and assayed CTL ex vivo. Murine DCs were retrovirally transduced with AdVIL-12 efficiency, and the AdVIL-12 transduced DCs secreted a high level of IL-12 (AdVIL-12/DCs, 615....Continue Reading

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Apr 27, 2011·Cancer Immunology, Immunotherapy : CII·Masato KatoKingo Chida
Jan 17, 2009·Molecular Carcinogenesis·Ye-Sheng WeiHong-Bing Nong
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Feb 20, 2021·Breast Cancer : Targets and Therapy·Adhitiya DaniyalRizky Abdulah

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