Androgens and Macrophages in Rheumatoid Arthritis
Author Information
Author(s): M. Cutolo, S. Accardo, B. Villaggio, A. Barone, A. Sulli, E. Balleari, C. Bason, L. Felli, O. M. Granata, R. Amodio, L. Castagnetta
Primary Institution: University of Genova
Hypothesis
Do androgens affect the function of human macrophages in rheumatoid arthritis?
Conclusion
Androgens may directly influence human macrophages and reduce interleukin-1 production through receptor-dependent mechanisms.
Supporting Evidence
- Macrophages from both normal and rheumatoid synovial tissues express functional androgen receptors.
- Testosterone significantly decreased interleukin-1 production in cultured macrophages.
- Macrophages metabolize testosterone to dihydrotestosterone, an active metabolite.
Takeaway
This study found that androgens can change how certain immune cells work in people with rheumatoid arthritis, possibly helping to reduce inflammation.
Methodology
Primary cultured human macrophages from normal and rheumatoid synovial tissues were exposed to testosterone, and interleukin-1 production was measured.
Limitations
The study was limited to a small sample size and specific patient demographics.
Participant Demographics
Six women and six men with rheumatoid arthritis, mean ages 49.6 and 53.7 years respectively.
Statistical Information
P-Value
0.028
Confidence Interval
43.8 to 560.4
Statistical Significance
p<0.05
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