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Murine Model for Non-invasive Imaging to Detect and Monitor Ovarian Cancer Recurrence
Published on: November 2, 2014
Mouse Xenograft Model for Intraperitoneal Administration of NK Cell Immunotherapy for Ovarian Cancer
David L Hermanson1, Laura Bendzick1, Dan S Kaufman2
1Department of Medicine, University of Minnesota as institution, La Jolla, CA, 92093, USA.
Abstract:
Natural killer (NK) cells are an attractive cell population for immunotherapy. Adoptive transfer of NK cells has been tested in multiple clinical trials including acute myeloid leukemia (AML) and ovarian cancer, although limitations do exist especially for treatment of solid tumors. In order to overcome these limitations, mouse xenograft models are needed for evaluation of various NK cell populations, as well as routes of NK cell administration. Here, we describe the methods used for the establishment of an intraperitoneal (ip) ovarian cancer mouse xenograft model with ip delivery of NK cells. This model has been successfully employed with multiple ovarian cell lines and could be applied to other tumor models where the tumor's primary location is in the peritoneal cavity. It is also compatible with multiple routes of NK cell administration. Bioluminescent imaging for monitoring tumor formation and response provides for easy visualization of NK cell tumor inhibition. This xenograft model is superior to other models because the tumor is implanted into the same physiological space where ovarian cancer is found, which allows for improved mimicking of actual disease.
Insights
This study presents a new ovarian cancer mouse model for immunotherapy research. It allows for effective testing of natural killer (NK) cell treatments in a setting that closely mimics human disease.
Area of Science:
- Immunotherapy
- Cancer Research
- Preclinical Models
Background:
- Natural killer (NK) cells show promise for cancer immunotherapy.
- Limitations exist in current NK cell therapies, particularly for solid tumors.
- Development of effective preclinical models is crucial for advancing NK cell-based treatments.
Purpose of the Study:
- To establish and validate an intraperitoneal (ip) ovarian cancer mouse xenograft model.
- To enable evaluation of NK cell administration routes and populations in a relevant disease microenvironment.
- To facilitate the study of NK cell efficacy against ovarian cancer in vivo.
Main Methods:
- Establishment of an intraperitoneal ovarian cancer xenograft model using various ovarian cancer cell lines.
- Intraperitoneal (ip) administration of NK cells into tumor-bearing mice.
- Bioluminescent imaging (BLI) for non-invasive monitoring of tumor growth and NK cell therapeutic response.
Main Results:
- The established ip xenograft model successfully supported tumor formation with multiple ovarian cancer cell lines.
- The model is compatible with various routes of NK cell administration.
- Bioluminescent imaging provided clear visualization of tumor burden and NK cell-mediated tumor inhibition.
Conclusions:
- The developed intraperitoneal ovarian cancer xenograft model accurately mimics the human disease microenvironment.
- This model is a valuable tool for preclinical evaluation of NK cell immunotherapies for ovarian cancer and other peritoneal cavity tumors.
- The model supports diverse NK cell administration strategies and facilitates outcome assessment via bioluminescent imaging.
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