Related Experiment Video
Updated: Aug 30, 2026

An Oncogenic Hepatocyte-Induced Orthotopic Mouse Model of Hepatocellular Cancer Arising in the Setting of Hepatic Inflammation and Fibrosis
Published on: September 12, 2019
Protective antitumor immunity induced by fixed tumor cells in combination with adjuvant in a murine hepatoma model
1RIKEN Cell Bank, RIKEN, 3-1-1 Koyadai, Ibaraki 305-0074, Tsukuba Science City, Japan.
We previously reported that fixed tumor sections induced autologous cytotoxic T lymphocytes (CTL) from human peripheral blood lymphocytes in vitro. Here, we examined whether fixed tumor cells could stimulate in vivo immunity using a murine hepatoma model. Vaccination of syngeneic mice with fixed Hepa 1-6 cells in combination with OK-432 and tuberculin as an adjuvant resulted in a significant increase in survival of mice against live Hepa 1-6 cell challenge. In addition, the splenocytes from vaccinated mice secreted CD4(+) T cell-mediated interferon-gamma (IFN-gamma) and exhibited a specific CTL response. These findings suggest that fixed tumor cells combined with an appropriate adjuvant induce effective antitumor immunity in vivo.
We previously reported that fixed tumor sections induced autologous cytotoxic T lymphocytes (CTL) from human peripheral blood lymphocytes in vitro. Here, we examined whether fixed tumor cells could stimulate in vivo immunity using a murine hepatoma model. Vaccination of syngeneic mice with fixed Hepa 1-6 cells in combination with OK-432 and tuberculin as an adjuvant resulted in a significant increase in survival of mice against live Hepa 1-6 cell challenge. In addition, the splenocytes from vaccinated mice secreted CD4(+) T cell-mediated interferon-gamma (IFN-gamma) and exhibited a specific CTL response. These findings suggest that fixed tumor cells combined with an appropriate adjuvant induce effective antitumor immunity in vivo.

