CRISPR-CAS9 in Cancer Immunotherapy

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Cell and Gene Therapy".

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 2585

Special Issue Editor


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Guest Editor
Department of Radiation Oncology, Heersink School of Medicine, The University of Alabama at Birmingham, Birmingham, AL, USA
Interests: immune signaling; metabolic processes; transcriptional factors; immune checkpoints; cancer Immunotherapy

Special Issue Information

Dear Colleagues,

CRISPR-CAS9 was awarded the 2020 Nobel Prize in chemistry, after its inception in 2011–2012, because of its revolutionary impact in the field of life sciences. With its adapted ability to precisely edit genomes in mammalian cells, including cancer and T cells, it has been widely used in studies of cancer immunotherapies, including immune checkpoint blockers (ICBs), chimeric antigen receptor T cells (CAR-T), and T-cell receptor T cells (TCR-T). For example, systemic screening of cancer cells with sgRNA libraries identified vulnerable genes in different tumor genotypes and unveiled genetic perturbations that drive therapeutic resistance to ICBs (e.g., loss of IFN-g signaling and antigen presentation machinery genes); conversely, knockout of the RNA-editing enzyme ADAR1 in tumor cells could overcome ICB resistance. With respect to its applications in T cells, deletion of negative regulators of T cell activation, immune checkpoints (i.e., PD-1 and CTLA-4), and key regulators of T cell exhaustion enhanced the anti-tumor function of CAR-T and TCR-T cells; additionally, by removing the TCRa and b chains in allogeneic T cells that cause graft vs. host disease and allorejection, this could improve the safety and accessibility of CAR-T cells. Given these exciting developments, in this Special Issue, we cordially invite cutting-edge research papers, insightful perspectives, and constructive reviews on CRISPR-CAS9 in cancer immunotherapy.

Dr. Lewis Zhichang Shi
Guest Editor

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Published Papers (1 paper)

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Research

15 pages, 2855 KiB  
Article
Cell-Based Models of ‘Cytokine Release Syndrome’ Endorse CD40L and Granulocyte–Macrophage Colony-Stimulating Factor Knockout in Chimeric Antigen Receptor T Cells as Mitigation Strategy
by Ala Dibas, Manuel Rhiel, Vidisha Bhavesh Patel, Geoffroy Andrieux, Melanie Boerries, Tatjana I. Cornu, Jamal Alzubi and Toni Cathomen
Cells 2023, 12(21), 2581; https://doi.org/10.3390/cells12212581 - 6 Nov 2023
Cited by 4 | Viewed by 2256
Abstract
While chimeric antigen receptor (CAR) T cell therapy has shown promising outcomes among patients with hematologic malignancies, it has also been associated with undesirable side-effects such as cytokine release syndrome (CRS). CRS is triggered by CAR T-cell-based activation of monocytes, which are stimulated [...] Read more.
While chimeric antigen receptor (CAR) T cell therapy has shown promising outcomes among patients with hematologic malignancies, it has also been associated with undesirable side-effects such as cytokine release syndrome (CRS). CRS is triggered by CAR T-cell-based activation of monocytes, which are stimulated via the CD40L–CD40R axis or via uptake of GM-CSF to secrete proinflammatory cytokines. Mouse models have been used to model CRS, but working with them is labor-intensive and they are not amenable to screening approaches. To overcome this challenge, we established two simple cell-based CRS in vitro models that entail the co-culturing of leukemic B cells with CD19-targeting CAR T cells and primary monocytes from the same donor. Upon antigen encounter, CAR T cells upregulated CD40L and released GM-CSF which in turn stimulated the monocytes to secrete IL-6. To endorse these models, we demonstrated that neutralizing antibodies or genetic disruption of the CD40L and/or CSF2 loci in CAR T cells using CRISPR-Cas technology significantly reduced IL-6 secretion by bystander monocytes without affecting the cytolytic activity of the engineered lymphocytes in vitro. Overall, our cell-based models were able to recapitulate CRS in vitro, allowing us to validate mitigation strategies based on antibodies or genome editing. Full article
(This article belongs to the Special Issue CRISPR-CAS9 in Cancer Immunotherapy)
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