Abstract

Chimeric antigen receptor (CAR)-T cell therapy is a revolutionary new pillar in cancer treatment. Although treatment with CAR-T cells has produced remarkable clinical responses with certain subsets of B cell leukemia or lymphoma, many challenges limit the therapeutic efficacy of CAR-T cells in solid tumors and hematological malignancies. Barriers to effective CAR-T cell therapy include severe life-threatening toxicities, modest anti-tumor activity, antigen escape, restricted trafficking, and limited tumor infiltration. In addition, the host and tumor microenvironment interactions with CAR-T cells critically alter CAR-T cell function. Furthermore, a complex workforce is required to develop and implement these treatments. In order to overcome these significant challenges, innovative strategies and approaches to engineer more powerful CAR-T cells with improved anti-tumor activity and decreased toxicity are necessary. In this review, we discuss recent innovations in CAR-T cell engineering to improve clinical efficacy in both hematological malignancy and solid tumors and strategies to overcome limitations of CAR-T cell therapy in both hematological malignancy and solid tumors.

Keywords

Chimeric antigen receptorMalignancyLymphomaTumor microenvironmentMedicineCancer researchCell therapyT cellLeukemiaCancerImmunologyCellImmune systemBiologyInternal medicineTumor cells

MeSH Terms

AnimalsHematologic NeoplasmsHumansImmunotherapyAdoptiveNeoplasmsReceptorsChimeric AntigenT-LymphocytesTumor Microenvironment

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Publication Info

Year
2021
Type
review
Volume
11
Issue
4
Pages
69-69
Citations
2373
Access
Closed

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2373
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70
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Cite This

Robert C. Sterner, Rosalie M. Sterner (2021). CAR-T cell therapy: current limitations and potential strategies. Blood Cancer Journal , 11 (4) , 69-69. https://doi.org/10.1038/s41408-021-00459-7

Identifiers

DOI
10.1038/s41408-021-00459-7
PMID
33824268
PMCID
PMC8024391

Data Quality

Data completeness: 86%