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Updated: Jan 25, 2026
In Vitro Tumor Cell Rechallenge For Predictive Evaluation of Chimeric Antigen Receptor T Cell Antitumor Function
Published on: February 27, 2019
Novel approaches to promote CAR T-cell function in solid tumors
Caroline M Hull1, John Maher1,2,3
1a School of Cancer and Pharmaceutical Sciences , King's College London, Division of Cancer Studies, Guy's Hospital , London , UK.
Introduction:
Following recent breakthrough developments in the application of CAR T-cell treatments for hematologic cancers, the potential of this approach to achieve meaningful impact against solid tumors now warrants careful consideration.
Areas Covered:
Effective deployment of CAR T-cell immunotherapy for solid tumors has proven challenging to date, due to a series of formidable hurdles. The first of these is the paucity of safe targets for this highly potent, expensive and potentially toxic form of treatment. Compounding this, the tumor microenvironment (TME) constitutes a nexus of cellular and molecular elements that conspire to suppress effective immunological function at that site, corrupting the physiological reparative processes that operate during wound healing. These obstacles are considered with a view to addressing how next-generation CAR T-cell approaches may be effectively applied to different cancer types.
Expert Opinion:
A variety of novel synthetic biology and combinatorial strategies are being developed that can improve CAR T-cell specificity and combat immunosuppressive pathways found in the TME. In addition, recent advances in genome editing techniques are paving the way toward the production of universally applicable CAR T cells.
Insights
CAR T-cell therapy shows promise for solid tumors, overcoming challenges like target scarcity and the suppressive tumor microenvironment (TME). Next-generation strategies are being developed to enhance effectiveness against various cancers.
Area of Science:
- Immunotherapy
- Oncology
- Synthetic Biology
Background:
- CAR T-cell therapy has revolutionized hematologic cancer treatment.
- Significant hurdles impede CAR T-cell application in solid tumors, including target identification and the immunosuppressive tumor microenvironment (TME).
Purpose of the Study:
- To explore the potential of CAR T-cell therapy for solid tumors.
- To address challenges in deploying CAR T-cell immunotherapy against solid tumors.
Main Methods:
- Review of current challenges in CAR T-cell therapy for solid tumors.
- Discussion of novel synthetic biology and genome editing strategies.
- Consideration of next-generation CAR T-cell approaches.
Main Results:
- Identification of target scarcity and TME as key obstacles.
- Emerging synthetic biology and combinatorial strategies to enhance specificity.
- Advancements in genome editing for universal CAR T-cell production.
Conclusions:
- Next-generation CAR T-cell therapies hold promise for solid tumors.
- Overcoming TME-mediated immunosuppression is crucial for success.
- Synthetic biology and genome editing are key enablers for future CAR T-cell applications.
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