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Medical Education

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2023

Mice

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Full-Text Articles in Life Sciences

Age-Induced Changes In Anti-Tumor Immunity Alter The Tumor Immune Infiltrate And Impact Response To Immuno-Oncology Treatments, Suzanne I Sitnikova, Jennifer A Walker, Laura B Prickett, Michelle Morrow, Viia E Valge-Archer, Matthew J Robinson, Robert W Wilkinson, Simon J Dovedi Jan 2023

Age-Induced Changes In Anti-Tumor Immunity Alter The Tumor Immune Infiltrate And Impact Response To Immuno-Oncology Treatments, Suzanne I Sitnikova, Jennifer A Walker, Laura B Prickett, Michelle Morrow, Viia E Valge-Archer, Matthew J Robinson, Robert W Wilkinson, Simon J Dovedi

Student and Faculty Publications

INTRODUCTION: Immuno-oncology (IO) research relies heavily on murine syngeneic tumor models. However, whilst the average age for a cancer diagnosis is 60 years or older, for practical purposes the majority of preclinical studies are conducted in young mice, despite the fact that ageing has been shown to have a significant impact on the immune response.

METHODS: Using aged (60-72 weeks old) mice bearing CT26 tumors, we investigated the impact of ageing on tumor growth as well as the immune composition of the tumor and peripheral lymphoid organs.

RESULTS: We found many differences in the immune cell composition of both the …