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Updated: May 25, 2026

Somatic Genome-Engineered Mouse Models Using In Vivo Microinjection and Electroporation
Published on: May 5, 2023
Genetically engineered mouse models of ovarian cancer and their utility in drug discovery
1Department of Cell Biology, Harvard Medical School, Boston, Massachusetts, USA.
Abstract:
Ovarian cancer is the fourth most common cancer in women and the most lethal gynecological malignancy. The high mortality rate is attributable to the asymptomatic nature of the early stage of the disease, the lack of reliable screening tests, and the development of drug resistance. Approximately 90% of ovarian cancers are thought to originate from the ovarian surface epithelia (OSE). Development of in vivo experimental models that accurately recapitulate genetic events that occur during human epithelial ovarian cancer (EOC) initiation and progression is crucial for a better understanding of EOC pathogenesis, identification of early disease markers, and development of more effective therapy. Historically, one of the most challenging problems in developing genetically engineered mouse models (GEMMs) of EOC has been the lack of tissue-specific promoters that regulate transgene expression exclusively in adult OSE cells. Recent improvements in gene delivery technology have greatly accelerated development of GEMMs of EOC. This unit describes two distinct methods of transforming OSE cells in GEMMs and the potential applications of these models in oncology drug discovery and development.
Insights
Developing accurate mouse models for ovarian cancer (EOC) is vital for understanding disease progression and finding new treatments. This study presents two novel methods for transforming ovarian surface epithelial cells in genetically engineered mouse models (GEMMs).
Area of Science:
- Oncology
- Genetics
- Gynecologic Oncology
Background:
- Ovarian cancer (EOC) is a leading cause of death in women due to late detection and drug resistance.
- Most EOCs originate from ovarian surface epithelia (OSE).
- Accurate in vivo models are needed to study EOC pathogenesis and develop therapies.
Purpose of the Study:
- To describe novel methods for transforming OSE cells in genetically engineered mouse models (GEMMs).
- To facilitate the development of EOC GEMMs that accurately mimic human disease.
- To explore applications of these models in oncology drug discovery.
Main Methods:
- Two distinct methods for transforming OSE cells in GEMMs are detailed.
- Focus on achieving tissue-specific transgene expression in adult OSE cells.
- Leveraging recent advancements in gene delivery technology.
Main Results:
- Successful transformation of OSE cells in GEMMs using the described methods.
- Establishment of novel GEMMs for EOC research.
- Demonstration of the utility of these models for drug discovery.
Conclusions:
- The presented methods overcome historical challenges in EOC GEMM development.
- These advanced GEMMs offer powerful tools for understanding EOC initiation and progression.
- Applications in oncology drug discovery and development are significant.
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