Challenges in the preclinical design and assessment of CAR-T cells

The advent of immunotherapy in the treatment of cancer has opened a new dimension in the management of this complex multifaceted disease, bringing hope to many patients whose tumors have failed to respond to conventional therapies. The adoptive T cell therapy has since been extended to the treatment...

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Main Authors: Radu Tomai, Javier De Las Rivas, Bogdan Fetica, Rui Bergantim, Brankica Filipic, Zarko Gagic, Katarina Nikolic, Diana Gulei, David Kegyes, Madalina Nistor, Ximena Maria Muresan, Diana Cenariu, Richard Feder, Mariana Pavel-Tanasa, Andrei Cianga, Adrian Bogdan Tigu, Raluca Munteanu, Alina Tanase, Hermann Einsele, Ciprian Tomuleasa
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Immunology
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Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2025.1564998/full
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author Radu Tomai
Radu Tomai
Javier De Las Rivas
Bogdan Fetica
Bogdan Fetica
Rui Bergantim
Rui Bergantim
Rui Bergantim
Rui Bergantim
Brankica Filipic
Zarko Gagic
Katarina Nikolic
Diana Gulei
Diana Gulei
David Kegyes
David Kegyes
Madalina Nistor
Madalina Nistor
Ximena Maria Muresan
Ximena Maria Muresan
Diana Cenariu
Diana Cenariu
Richard Feder
Richard Feder
Mariana Pavel-Tanasa
Andrei Cianga
Adrian Bogdan Tigu
Adrian Bogdan Tigu
Raluca Munteanu
Raluca Munteanu
Alina Tanase
Hermann Einsele
Hermann Einsele
Hermann Einsele
Ciprian Tomuleasa
Ciprian Tomuleasa
author_facet Radu Tomai
Radu Tomai
Javier De Las Rivas
Bogdan Fetica
Bogdan Fetica
Rui Bergantim
Rui Bergantim
Rui Bergantim
Rui Bergantim
Brankica Filipic
Zarko Gagic
Katarina Nikolic
Diana Gulei
Diana Gulei
David Kegyes
David Kegyes
Madalina Nistor
Madalina Nistor
Ximena Maria Muresan
Ximena Maria Muresan
Diana Cenariu
Diana Cenariu
Richard Feder
Richard Feder
Mariana Pavel-Tanasa
Andrei Cianga
Adrian Bogdan Tigu
Adrian Bogdan Tigu
Raluca Munteanu
Raluca Munteanu
Alina Tanase
Hermann Einsele
Hermann Einsele
Hermann Einsele
Ciprian Tomuleasa
Ciprian Tomuleasa
author_sort Radu Tomai
collection DOAJ
description The advent of immunotherapy in the treatment of cancer has opened a new dimension in the management of this complex multifaceted disease, bringing hope to many patients whose tumors have failed to respond to conventional therapies. The adoptive T cell therapy has since been extended to the treatment of several hematologic malignancies, initially in relapsed settings and more recently at the forefront of treatment due to high response rates. Despite exciting initial results, the preclinical antitumor effects of the first long-term studies show that CAR (Chimeric Antigen Receptor)-T cells have been slow to translate to the clinical setting, with early clinical trials showing suboptimal responses. The main reasons for the limited clinical performance seemed to be related to the low activation and short persistence of CAR-T cells. Thus, began a journey to improve the initial CAR structure, leading to the development of more complex constructs, which are grouped into five CAR generations. In this review, we describe the main challenges and potential solutions for the evaluation of CAR T-cell-based therapies in the preclinical setting.
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publisher Frontiers Media S.A.
record_format Article
series Frontiers in Immunology
spelling doaj-art-49e94a953b2649e0ad8a7a877ecab3902025-08-20T02:55:09ZengFrontiers Media S.A.Frontiers in Immunology1664-32242025-08-011610.3389/fimmu.2025.15649981564998Challenges in the preclinical design and assessment of CAR-T cellsRadu Tomai0Radu Tomai1Javier De Las Rivas2Bogdan Fetica3Bogdan Fetica4Rui Bergantim5Rui Bergantim6Rui Bergantim7Rui Bergantim8Brankica Filipic9Zarko Gagic10Katarina Nikolic11Diana Gulei12Diana Gulei13David Kegyes14David Kegyes15Madalina Nistor16Madalina Nistor17Ximena Maria Muresan18Ximena Maria Muresan19Diana Cenariu20Diana Cenariu21Richard Feder22Richard Feder23Mariana Pavel-Tanasa24Andrei Cianga25Adrian Bogdan Tigu26Adrian Bogdan Tigu27Raluca Munteanu28Raluca Munteanu29Alina Tanase30Hermann Einsele31Hermann Einsele32Hermann Einsele33Ciprian Tomuleasa34Ciprian Tomuleasa35Department of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaBioinformatics and Functional Genomics Group, Cancer Research Center (CiC-IBMCC, CSIC/USAL), Consejo Superior de Investigaciones Cientificas (CSIC) & University of Salamanca (USAL), Salamanca, SpainDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaHematology Department, University Hospital Sao Joao Porto São João (ULS), Porto, Portugali3S Instituto de Investigação e Inovação em Saúde University of Porto, Porto, PortugalCancer Drug Resistance Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto, PortugalClinical Hematology Department, Faculty of Medicine of the University of Porto (FMUP), Porto, PortugalDepartment of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, Belgrade, SerbiaDepartment of Pharmaceutical Chemistry, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina0Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, SerbiaDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania1Department of Immunology, Grigore T. Popa University of Medicine and Pharmacy, Iasi, Romania1Department of Immunology, Grigore T. Popa University of Medicine and Pharmacy, Iasi, RomaniaDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania2Department of Stem Cell Transplantation, Fundeni Clinical Institute, Bucharest, RomaniaDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania3Julius Maximilians University of Würzburg, Würzburg, GermanyDepartment of Hematology - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaDepartment of Personalized Medicine and Rare Diseases - Medfuture Institute for Biomedical Research, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, RomaniaThe advent of immunotherapy in the treatment of cancer has opened a new dimension in the management of this complex multifaceted disease, bringing hope to many patients whose tumors have failed to respond to conventional therapies. The adoptive T cell therapy has since been extended to the treatment of several hematologic malignancies, initially in relapsed settings and more recently at the forefront of treatment due to high response rates. Despite exciting initial results, the preclinical antitumor effects of the first long-term studies show that CAR (Chimeric Antigen Receptor)-T cells have been slow to translate to the clinical setting, with early clinical trials showing suboptimal responses. The main reasons for the limited clinical performance seemed to be related to the low activation and short persistence of CAR-T cells. Thus, began a journey to improve the initial CAR structure, leading to the development of more complex constructs, which are grouped into five CAR generations. In this review, we describe the main challenges and potential solutions for the evaluation of CAR T-cell-based therapies in the preclinical setting.https://www.frontiersin.org/articles/10.3389/fimmu.2025.1564998/fullCAR-T cell trackingtumor organoidsantigen escapesolid tumor immunotherapymetabolic reprogrammingHDAC inhibitors
spellingShingle Radu Tomai
Radu Tomai
Javier De Las Rivas
Bogdan Fetica
Bogdan Fetica
Rui Bergantim
Rui Bergantim
Rui Bergantim
Rui Bergantim
Brankica Filipic
Zarko Gagic
Katarina Nikolic
Diana Gulei
Diana Gulei
David Kegyes
David Kegyes
Madalina Nistor
Madalina Nistor
Ximena Maria Muresan
Ximena Maria Muresan
Diana Cenariu
Diana Cenariu
Richard Feder
Richard Feder
Mariana Pavel-Tanasa
Andrei Cianga
Adrian Bogdan Tigu
Adrian Bogdan Tigu
Raluca Munteanu
Raluca Munteanu
Alina Tanase
Hermann Einsele
Hermann Einsele
Hermann Einsele
Ciprian Tomuleasa
Ciprian Tomuleasa
Challenges in the preclinical design and assessment of CAR-T cells
Frontiers in Immunology
CAR-T cell tracking
tumor organoids
antigen escape
solid tumor immunotherapy
metabolic reprogramming
HDAC inhibitors
title Challenges in the preclinical design and assessment of CAR-T cells
title_full Challenges in the preclinical design and assessment of CAR-T cells
title_fullStr Challenges in the preclinical design and assessment of CAR-T cells
title_full_unstemmed Challenges in the preclinical design and assessment of CAR-T cells
title_short Challenges in the preclinical design and assessment of CAR-T cells
title_sort challenges in the preclinical design and assessment of car t cells
topic CAR-T cell tracking
tumor organoids
antigen escape
solid tumor immunotherapy
metabolic reprogramming
HDAC inhibitors
url https://www.frontiersin.org/articles/10.3389/fimmu.2025.1564998/full
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