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Updated: Jan 30, 2026

Orthotopic Transplantation of Breast Tumors as Preclinical Models for Breast Cancer
Published on: May 18, 2020
Mouse models of breast cancer in preclinical research
Mi Kyung Park1, Chang Hoon Lee2, Ho Lee1,3
1Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Gyeonggi, Korea.
Abstract:
Breast cancer remains the second leading cause of cancer death among woman, worldwide, despite advances in identifying novel targeted therapies and the development of treating strategies. Classification of clinical subtypes (ER+, PR+, HER2+, and TNBC (Triple-negative)) increases the complexity of breast cancers, which thus necessitates further investigation. Mouse models used in breast cancer research provide an essential approach to examine the mechanisms and genetic pathway in cancer progression and metastasis and to develop and evaluate clinical therapeutics. In this review, we summarize tumor transplantation models and genetically engineered mouse models (GEMMs) of breast cancer and their applications in the field of human breast cancer research and anti-cancer drug development. These models may help to improve the knowledge of underlying mechanisms and genetic pathways, as well as creating approaches for modeling clinical tumor subtypes, and developing innovative cancer therapy.
Insights
Mouse models are crucial for understanding breast cancer progression and developing new treatments. This review covers transplantation and genetically engineered models for advancing breast cancer research and drug discovery.
Area of Science:
- Oncology
- Translational Medicine
- Cancer Biology
Background:
- Breast cancer is a leading cause of cancer death in women globally.
- Diverse subtypes (ER+, PR+, HER2+, TNBC) complicate treatment strategies.
- Advances in targeted therapies necessitate robust preclinical models.
Purpose of the Study:
- To review existing mouse models for breast cancer research.
- To highlight the application of these models in understanding cancer mechanisms and metastasis.
- To discuss their role in evaluating novel anti-cancer therapeutics.
Main Methods:
- Summary of tumor transplantation models in breast cancer.
- Overview of genetically engineered mouse models (GEMMs) for breast cancer.
- Analysis of model utility in preclinical research and drug development.
Main Results:
- Mouse models are essential for studying breast cancer progression and metastasis.
- These models facilitate the investigation of underlying genetic pathways.
- They aid in developing and testing targeted therapies and treatment strategies.
Conclusions:
- Tumor transplantation and GEMMs are vital tools in breast cancer research.
- These models enhance understanding of molecular mechanisms and clinical subtypes.
- They are instrumental in advancing anti-cancer drug development and therapeutic innovation.
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