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Engineered Ovarian Cancer Cell Lines for Validation of CAR T Cell Function
Claire E Repellin1, Priya Ganesan1, Javier F Alcudia2
1Biosciences Division, SRI International, Menlo Park, CA, 94025.
Advanced Biosystems
|April 16, 2020
Summary
Genetically engineered cell lines expressing folate receptor alpha or mesothelin were developed. These cell lines serve as crucial tools for validating T-cell biofactories, chimeric antigen receptors, and monoclonal antibodies.
Area of Science:
- Biotechnology
- Immunology
- Cell Biology
Background:
- Developing reliable quality control tools is essential for advancing cell and antibody therapies.
- Existing methods may lack the specificity required for complex biological systems.
Purpose of the Study:
- To create genetically engineered isogenic cell lines for validating novel therapeutic and diagnostic tools.
- To establish a versatile platform for assessing the specificity and function of engineered biological agents.
Main Methods:
- Generation of isogenic cell lines expressing specific antigens (folate receptor alpha, mesothelin) and reporter genes.
- Utilizing these cell lines to authenticate the specificity and function of T-cell biofactories and chimeric antigen receptor T cells.
- Assessing the specificity of monoclonal antibodies using the engineered cell lines.
Main Results:
- Successfully developed cell lines expressing target antigens and reporter genes.
- Validated the specificity and function of a T-cell biofactory.
- Confirmed the specificity of chimeric antigen receptor T cells and monoclonal antibodies.
- Demonstrated the utility of these cell lines as versatile quality control tools.
Conclusions:
- The developed engineered cell lines provide a robust platform for quality control in immunotherapy and diagnostics.
- This strategy enables the creation of custom cell lines for various disease biomarkers.
- These tools are critical for ensuring the safety and efficacy of novel cell-based and antibody-based therapies.

