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Updated: Aug 16, 2026

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Published on: March 5, 2010
The therapeutic potential of 4-1BB (CD137) in cancer
Kyung-Ok Nam1, Woo Jin Kang, Byoung S Kwon
1Department of Pharmacology, School of Dentistry, Kyung Hee University, Seoul 130-701, Korea.
Abstract:
Techniques for modulating immune cells for cancer therapy have been widely studied. One key approach that is being clinically tested is developing tumor-destructive cell-mediated immune responses by regulating co-stimulatory molecules. 4-1BB (CD137), a member of the TNF receptor family, is expressed following activation of T and NK cells. Recently, it has been reported that DCs also express 4-1BB. Cross-linking of 4-1BB provides a potent co-stimulatory signal for lymphocytes via signal transduction pathways that modulate a number of cellular responses. One remarkable response is stimulation of anti-tumor activity in vivo and in vitro. We here review the potential role of 4-1BB in cancer immunotherapy focusing on the cellular and molecular mechanisms involved.
Insights
Modulating co-stimulatory molecule 4-1BB (CD137) enhances anti-tumor immune responses. This review explores 4-1BB
Area of Science:
- Immunology
- Cancer Therapy
- Molecular Biology
Background:
- Immune cell modulation is crucial for effective cancer therapy.
- Co-stimulatory molecules, like 4-1BB (CD137), are key targets for enhancing anti-tumor immunity.
- 4-1BB is expressed on activated T cells, NK cells, and dendritic cells (DCs).
Purpose of the Study:
- To review the role of 4-1BB in cancer immunotherapy.
- To focus on the cellular and molecular mechanisms underlying 4-1BB's anti-tumor effects.
Main Methods:
- Literature review of studies on 4-1BB in cancer immunotherapy.
- Analysis of cellular and molecular mechanisms of 4-1BB signaling.
- Examination of in vivo and in vitro data on 4-1BB mediated anti-tumor activity.
Main Results:
- Cross-linking 4-1BB provides potent co-stimulatory signals to lymphocytes.
- 4-1BB signaling modulates various cellular responses, leading to enhanced anti-tumor activity.
- Evidence supports 4-1BB's role in stimulating tumor-destructive immune responses.
Conclusions:
- 4-1BB is a promising target for developing novel cancer immunotherapies.
- Understanding 4-1BB's mechanisms can optimize its clinical application.
- Targeting 4-1BB offers a strategy to harness cell-mediated immunity against cancer.
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