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Related Experiment Video

Updated: Jun 16, 2026

Isolation of Group 2 Innate Lymphoid Cells from Mouse Nasal Mucosa to Detect the Expression of CD226

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Published on: May 10, 2022

CD137-CD137 Ligand Interactions in Inflammation.

Byungsuk Kwon¹

¹School of Biological Sciences, University of Ulsan, Ulsan, Korea.

|January 29, 2010

Summary

This summary is machine-generated.

CD137 receptor and its ligand CD137L have complex roles in immunity. New evidence shows bidirectional signaling, impacting inflammation and T-cell activity, with significant clinical implications.

Keywords:

CD137 CD137 ligand inflammation

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Area of Science:

Immunology
Molecular Biology
Cell Signaling

Background:

CD137 (Cluster of Differentiation 137) primarily studied for CD8(+) T-cell immunity.
CD137 exhibits both anti-tumor and paradoxical immunosuppressive activities, showing therapeutic potential in autoimmune and inflammatory diseases.
Recent research reveals complexities in CD137 biology, including bidirectional signaling.

Purpose of the Study:

To explore the complex biology of CD137 and its ligand (CD137L).
To investigate the bidirectional signal transduction pathway between CD137 and CD137L.
To understand the role of CD137/CD137L interactions beyond T-cell immunity.

Main Methods:

Review of recent studies on CD137 and CD137L signaling.
Analysis of evidence for bidirectional signal transduction.
Examination of CD137/CD137L involvement in hematopoietic and nonhematopoietic cells.

Main Results:

Evidence supports a bidirectional signaling pathway between CD137 and CD137L.
CD137/CD137L interactions extend beyond antigen-presenting cell-T cell communication.
CD137L signaling is critical for myeloid cell differentiation and activity, potentially triggering and sustaining inflammation.
Amplified inflammation via CD137L enhances T-cell activity through upregulation of key molecules.

Conclusions:

CD137/CD137L interactions are more complex than previously understood.
Bidirectional signaling and CD137L's role in inflammation have significant clinical implications.
Further research is urgently needed to elucidate these pathways for therapeutic development.