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Published on: February 21, 2025
CD24: A Novel Target for Cancer Immunotherapy
Emmanouil Panagiotou1, Nikolaos K Syrigos1, Andriani Charpidou1
1Section of Medical Oncology, Third Department of Internal Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece.
Abstract:
Cluster of differentiation 24 (CD24) is a small, highly glycosylated cell adhesion protein that is normally expressed by immune as well as epithelial, neural, and muscle cells. Tumor CD24 expression has been linked with alterations in several oncogenic signaling pathways. In addition, the CD24/Siglec-10 interaction has been implicated in tumor immune evasion, inhibiting macrophage-mediated phagocytosis as well as natural killer (NK) cell cytotoxicity. CD24 blockade has shown promising results in preclinical studies. Although there are limited data on efficacy, monoclonal antibodies against CD24 have demonstrated clinical safety and tolerability in two clinical trials. Other treatment modalities evaluated in the preclinical setting include antibody-drug conjugates and chimeric antigen receptor (CAR) T cell therapy. In this review, we summarize current evidence and future perspectives on CD24 as a potential target for cancer immunotherapy.
Insights
Cluster of differentiation 24 (CD24) is a cell adhesion protein. Blocking CD24 shows promise for cancer immunotherapy by overcoming tumor immune evasion and enhancing immune cell activity.
Area of Science:
- Immunology
- Oncology
- Molecular Biology
Background:
- Cluster of differentiation 24 (CD24) is a glycosylated cell adhesion protein found on immune and other cell types.
- Tumor CD24 expression correlates with oncogenic signaling pathway alterations.
- The CD24/Siglec-10 pathway is involved in tumor immune evasion, suppressing macrophage phagocytosis and natural killer (NK) cell cytotoxicity.
Purpose of the Study:
- To review current evidence on CD24 as a cancer immunotherapy target.
- To discuss future perspectives for CD24-targeted therapies.
Main Methods:
- Review of preclinical studies on CD24 blockade.
- Analysis of clinical trial data for anti-CD24 monoclonal antibodies.
- Evaluation of antibody-drug conjugates and CAR T cell therapy in preclinical settings.
Main Results:
- CD24 blockade demonstrates potential in preclinical cancer models.
- Monoclonal antibodies targeting CD24 show clinical safety and tolerability.
- Emerging therapies like antibody-drug conjugates and CAR T cells are being explored.
Conclusions:
- CD24 represents a promising target for cancer immunotherapy.
- Further research and clinical trials are warranted to optimize CD24-targeted treatment strategies.
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