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Updated: Oct 2, 2026
An Adoptive Transfer Model of Rheumatoid Arthritis in Mice
Published on: June 6, 2025
Vitamin E uncouples joint destruction and clinical inflammation in a transgenic mouse model of rheumatoid arthritis
Michel De Bandt1, Maggy Grossin, Fathi Driss
1INSERM U479, Faculté Xavier Bichat, and Centre Hospitalo-Universitaire Xavier Bichat, 46 rue Henri Huchard, Paris 75018, France. frbandt@bichat.inserm.fr
Objective:
Reactive oxygen species are thought to play a role in rheumatoid arthritis (RA) in humans. We postulated that antioxidant treatment could have a beneficial effect in this disease. We therefore investigated the effects of vitamin E in the transgenic KRN/NOD mouse model of RA.
Methods:
Mice were treated by gavage with oral vitamin E (alpha-tocopherol). Clinical, histologic, and biochemical parameters were assessed for 6 weeks.
Results:
Vitamin E treatment did not modify the clinical features of the disease (date of onset or disease intensity, as measured by the articular index), but it did prevent joint destruction, as measured by qualitative and semiquantitative analyses. Redox status did not differ between treated and control mice. White blood cell chemiluminescence was higher in transgenic KRN/NOD mice than in controls, but vitamin E treatment attenuated this difference. Vitamin E treatment of the transgenic animals led to a significant decrease in the levels of interleukin-(IL-1beta) but not tumor necrosis factor alpha.
Conclusion:
Vitamin E seems to uncouple joint inflammation and joint destruction in this model of RA, with a beneficial effect on joint destruction. Since many investigations are currently in progress to evaluate the benefit of interventions targeted toward anti-IL-1beta, our findings suggest opportunities of therapeutic interest in human RA.
Insights
Vitamin E treatment prevented joint destruction in a mouse model of rheumatoid arthritis (RA). While not affecting disease onset or intensity, it reduced inflammation markers like interleukin-1 beta.
Area of Science:
- Immunology
- Rheumatology
- Oxidative Stress
Background:
- Reactive oxygen species are implicated in human rheumatoid arthritis (RA) pathogenesis.
- Antioxidant interventions are being explored for potential therapeutic benefits in RA.
Purpose of the Study:
- To investigate the therapeutic effects of vitamin E in a transgenic KRN/NOD mouse model of RA.
- To assess the impact of vitamin E on clinical, histological, and biochemical parameters of RA.
Main Methods:
- Oral administration of vitamin E (alpha-tocopherol) to KRN/NOD mice for six weeks.
- Evaluation of clinical disease features, joint histology, and biochemical markers.
- Assessment of redox status and inflammatory markers like white blood cell chemiluminescence and cytokine levels.
Main Results:
- Vitamin E did not alter clinical disease onset or intensity (articular index).
- Vitamin E administration prevented joint destruction, confirmed by histological analysis.
- Reduced levels of interleukin-1 beta (IL-1β) were observed, while tumor necrosis factor alpha (TNF-α) levels remained unchanged.
- Vitamin E attenuated increased white blood cell chemiluminescence in transgenic mice.
Conclusions:
- Vitamin E appears to decouple joint inflammation from joint destruction in this RA mouse model.
- The findings suggest potential therapeutic applications of vitamin E or anti-IL-1β strategies in human RA.
- Vitamin E's beneficial effect on joint destruction warrants further investigation for RA treatment.
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