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Updated: Jun 25, 2026

Testing Cancer Immunotherapeutics in a Humanized Mouse Model Bearing Human Tumors
Published on: December 16, 2022
Cancer vaccines: Uses of HLA transgenic mice compared to genetically modified mice
1The John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS Nottingham. stephanie.mcardle@ntu.ac.uk
Abstract:
Many tumor antigens have been identified that can be targeted by the immune system. Animal models that have been genetically modified to express human HLA molecules instead of their own MHC antigens have shown to be valuable in the discovery of peptides derived from tumor antigens many of which have since been used in clinical trials with varying degrees of success. Although these models are not perfect, they nonetheless allow transplantable tumor models to be developed to evaluate novel vaccination strategies that can then be applied in humans. In addition animals that have been genetically modified to "spontaneously" generate tumors that will grow within their correct environment are of greater value for studying angiogenesis, metastasis and the relationship between the immune system and tumor in a physiological setting. In this review, mice genetically modified to express HLA genes or to spontaneously develop tumors are discussed, highlighting their advantages and limitations as preclinical models for cancer immunotherapy.
Insights
Genetically modified animal models expressing human HLA molecules or spontaneously developing tumors are crucial for advancing cancer immunotherapy research and developing effective vaccination strategies.
Area of Science:
- Immunology
- Oncology
- Genetics
Background:
- Tumor antigens are targets for cancer immunotherapy.
- Genetically modified animal models expressing human HLA molecules are valuable for discovering tumor-derived peptides.
- These peptides have been used in clinical trials with varied success.
Purpose of the Study:
- To review genetically modified mice as preclinical models for cancer immunotherapy.
- To highlight the advantages and limitations of these models.
Main Methods:
- Review of literature on genetically modified mice.
- Discussion of models expressing human HLA genes.
- Discussion of models that spontaneously develop tumors.
Main Results:
- HLA-expressing models enable the development of transplantable tumors for evaluating vaccination strategies.
- Spontaneous tumor models are valuable for studying tumor biology in a physiological setting, including angiogenesis and metastasis.
- Both model types have limitations but offer significant preclinical insights.
Conclusions:
- Genetically modified mice are indispensable tools in cancer immunotherapy research.
- These models facilitate the translation of preclinical findings to human cancer treatments.
- Continued development and application of these models are vital for advancing cancer immunotherapy.
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