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Updated: May 15, 2026

An Adoptive Transfer Model of Rheumatoid Arthritis in Mice
Published on: June 6, 2025
TNF-related apoptosis-inducing ligand (TRAIL) in rheumatoid arthritis: what's new?
Anna Neve1, Addolorata Corrado, Francesco Paolo Cantatore
1Department of Medical and Surgical Sciences, Rheumatology Clinic, University of Foggia, Ospedale "Col. D'Avanzo", V.le degli Aviatori 1, 71100, Foggia, Italy.
Abstract:
TNF-related apoptosis-inducing ligand (TRAIL) is a type II transmembrane protein of the TNF superfamily that serves as an extracellular signal that triggers programmed cell death in tumor cells, without affecting normal cells. Recently, scientists have turned their attention to the emerging role of TRAIL in immune and autoimmune responses. TRAIL has been shown to down-regulate the self-antigens in autoimmune diseases, such as rheumatoid arthritis (RA) by exerting its apoptotic effect on activated T cells and synoviocytes and by its local anti-inflammatory effect. The impact of TRAIL molecular variants and agonistic monoclonal antibodies in the regulation of TRAIL activity in arthritis animal models strongly supports the idea of testing the role of TRAIL in humans, with the aim of developing new effective therapies that promote apoptosis of synoviocytes and/or infiltrating lymphocytes, by targeting TRAIL. The aim of this review is to summarize recent progress and current knowledge of TRAIL functions in RA.
Insights
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) shows promise in treating rheumatoid arthritis (RA) by inducing cell death in harmful immune cells. Targeting TRAIL may offer new therapies for autoimmune diseases like RA.
Area of Science:
- Immunology
- Molecular Biology
- Rheumatology
Background:
- TNF-related apoptosis-inducing ligand (TRAIL) is a protein that induces programmed cell death.
- TRAIL is being investigated for its role in immune and autoimmune responses.
- TRAIL may down-regulate self-antigens in autoimmune diseases like rheumatoid arthritis (RA).
Purpose of the Study:
- To review the functions of TRAIL in rheumatoid arthritis (RA).
- To summarize recent advancements in understanding TRAIL's role in RA.
- To explore TRAIL-targeted therapies for RA.
Main Methods:
- Review of current scientific literature on TRAIL and RA.
- Analysis of TRAIL's apoptotic effects on T cells and synoviocytes.
- Examination of TRAIL molecular variants and antibodies in arthritis models.
Main Results:
- TRAIL induces apoptosis in activated T cells and synoviocytes, contributing to RA pathogenesis.
- TRAIL exhibits local anti-inflammatory effects relevant to RA.
- Animal models demonstrate the potential of TRAIL modulation in arthritis.
Conclusions:
- TRAIL plays a significant role in the immune and inflammatory processes of RA.
- Targeting TRAIL presents a potential therapeutic strategy for RA.
- Further investigation into TRAIL-based therapies for RA is warranted.
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