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Author Spotlight: High-Throughput Screening of CAR T-Cell Constructs for Enhanced Cytotoxicity and Immunologic Memory
Published on: October 27, 2023
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Basic Procedures for Detection and Cytotoxicity of Chimeric Antigen Receptors
Keichiro Mihara1, Tetsumi Yoshida2, Joyeeta Bhattacharyya3
1Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan. kmmihara@hiroshima-u.ac.jp.
Methods in Molecular Biology (Clifton, N.J.)
|December 13, 2018
Summary
This study provides reliable protocols for detecting chimeric antigen receptors (CAR) on T-cells and assessing their cancer-killing efficacy. These methods are crucial for advancing CAR T-cell therapies for B-cell malignancies.
Area of Science:
- Immunology
- Molecular Biology
- Cell Biology
- Oncology
Background:
- Chimeric antigen receptors against CD19 (anti-CD19-CAR) are vital in treating B-cell malignancies like acute B-cell-typed lymphoblastic leukemia (B-ALL).
- Detecting CAR on cell surfaces and evaluating CAR T-cell efficacy requires robust experimental methods.
Purpose of the Study:
- To describe reliable and reproducible protocols for detecting anti-CD19-CAR on transduced cells.
- To present methods for assessing the in vitro cytotoxicity of CAR T-cells.
Main Methods:
- Flow cytometry for CAR detection on cell surfaces.
- Cr-releasing assays and immunostaining for evaluating CAR T-cell killing activity.
- In vitro coculture experiments to assess CAR T-cell cytotoxicity.
Main Results:
- Established protocols for detecting CAR expression on engineered T-cells.
- Validated methods for measuring the cytotoxic effects of CAR T-cells against target cells.
- Demonstrated the reliability and reproducibility of chosen experimental techniques.
Conclusions:
- The described protocols are essential for the accurate detection and efficacy assessment of CAR T-cell therapies.
- These methods support the advancement of anti-CD19-CAR T-cell treatments for B-cell malignancies.
- Standardized protocols enhance the reliability of research and clinical applications of CAR T-cells.
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