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Updated: Jun 19, 2026
Tumor Transplantation for Assessing the Dynamics of Tumor-Infiltrating CD8+ T Cells in Mice
Published on: June 12, 2021
STUDIES ON LYMPHOID ACTIVITY : VII. SUPPRESSION OF INDUCED IMMUNITY TO TRANSPLANTED CANCER BY LARGE DOSES OF OLIVE
1Laboratories of The Rockefeller Institute for Medical Research.
Abstract:
The state of potential immunity to transplanted cancer engendered in mice by an injection of homologous blood may be reversed and converted into a susceptible state by an intraperitoneal injection of olive oil prior to the cancer inoculation. The suppression of resistance is accompanied by the failure of certain cellular reactions known to develop during the establishment of immunity to transplanted cancer.
Insights
Olive oil injections can reverse cancer immunity in mice, making them susceptible to tumor growth. This suppression of resistance is linked to the failure of key cellular reactions involved in immune response.
Area of Science:
- Immunology
- Oncology
- Cancer Research
Background:
- Homologous blood injections can induce potential immunity against transplanted cancer in mice.
- Understanding the mechanisms that regulate anti-cancer immunity is crucial for developing effective cancer therapies.
Purpose of the Study:
- To investigate whether the immune state induced by homologous blood can be reversed.
- To determine the effect of olive oil on the established anti-cancer immunity.
Main Methods:
- Mice were injected with homologous blood to induce potential immunity.
- Prior to cancer inoculation, some mice received an intraperitoneal injection of olive oil.
- Immune status and cellular reactions were monitored after cancer challenge.
Main Results:
- Olive oil injection reversed the immune state, converting it to a susceptible state for transplanted cancer.
- The suppression of anti-cancer resistance was associated with the failure of specific cellular reactions.
- These cellular reactions are typically observed during the development of immunity to transplanted cancer.
Conclusions:
- Olive oil can effectively reverse tumor immunity in a mouse model.
- The findings suggest a potential role for modulating cellular reactions in overcoming cancer resistance.
- Further research may explore therapeutic strategies targeting these cellular pathways.
