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Updated: Oct 2, 2026
Establishment and Propagation of Human Retinoblastoma Tumors in Immune Deficient Mice
Published on: August 4, 2011
Noninvasive imaging of spontaneous retinoblastoma pathway-dependent tumors in mice
Marc Vooijs1, Jos Jonkers, Scott Lyons
1Division of Molecular Genetics and Centre for Biomedical Genetics, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands.
Abstract:
Identification of the critical pathways involved in tumorigenesis should ultimately lead to the design of better anticancer agents that target specific components of the disrupted pathways. Murine models of spontaneous cancer in which tumor formation is dependent on defined genetic alterations provide a powerful test system for evaluating the therapeutic efficacy of pathway-specific antineoplastics. We have generated a conditional mouse model for retinoblastoma-dependent sporadic cancer that permits noninvasive monitoring of pituitary tumor development in live animals via in vivo bioluminescence imaging of luciferase expression. We show that the high sensitivity of bioluminescence imaging can be used for noninvasive detection of luciferase expression in pituitary glands from tumor-free animals and for in vivo quantitation of tumor burden over a large dynamic range. This mouse model permits longitudinal monitoring of tumor onset, progression, and response to therapy and may be used effectively for testing cancer prevention and treatment strategies based on therapeutics that specifically target the retinoblastoma pathway.
Insights
Researchers developed a new mouse model for studying retinoblastoma-dependent pituitary tumors. This model uses bioluminescence imaging for noninvasive monitoring of tumor growth and response to therapy.
Area of Science:
- Oncology
- Genetics
- Biotechnology
Background:
- Identifying key pathways in tumorigenesis is crucial for developing targeted anticancer therapies.
- Murine models with defined genetic alterations are valuable for testing antineoplastic agents.
Purpose of the Study:
- To create a conditional mouse model for retinoblastoma-dependent sporadic cancer.
- To enable noninvasive monitoring of pituitary tumor development using bioluminescence imaging.
Main Methods:
- Generated a conditional mouse model for retinoblastoma-dependent cancer.
- Utilized in vivo bioluminescence imaging to monitor luciferase expression in pituitary tumors.
- Quantitated tumor burden over a wide dynamic range.
Main Results:
- Demonstrated high sensitivity of bioluminescence imaging for detecting luciferase expression in tumor-free and tumor-bearing animals.
- Showcased the model's ability for longitudinal monitoring of tumor onset, progression, and therapeutic response.
Conclusions:
- The developed mouse model allows for effective, noninvasive monitoring of retinoblastoma-dependent pituitary tumors.
- This model can be instrumental in testing cancer prevention and treatment strategies targeting the retinoblastoma pathway.
