Journal
ARTHRITIS RESEARCH & THERAPY
Volume 11, Issue 5, Pages -Publisher
BIOMED CENTRAL LTD
DOI: 10.1186/ar2799
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Funding
- Goteborg Medical Society
- Swedish Association Against Rheumatism, King Gustav V's Foundation
- University of Goteborg
- A.-G. Crafoord Foundation
- Borje Dahlin Foundation, European Union
- Inflammation Network
- A. M. E. Wolff Foundation
- CMR
- Goteborg Association Against Rheumatism
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Introduction Dichloroacetate (DCA) has been in clinical use for the treatment of lactacidosis and inherited mitochondrial disorders. It has potent anti-tumor effects both in vivo and in vitro, facilitating apoptosis and inhibiting proliferation. The proapoptotic and anti-proliferative properties of DCA prompted us to investigate the effects of this compound in arthritis. Methods In the present study, we used DCA to treat murine collagen type II (CII)-induced arthritis (CIA), an experimental model of rheumatoid arthritis. DBA/1 mice were treated with DCA given in drinking water. Results Mice treated with DCA displayed much slower onset of CIA and significantly lower severity (P < 0.0001) and much lower frequency (36% in DCA group vs. 86% in control group) of arthritis. Also, cartilage and joint destruction was significantly decreased following DCA treatment (P = 0.005). Moreover, DCA prevented arthritis-induced cortical bone mineral loss. This clinical picture was also reflected by lower levels of anti-CII antibodies in DCA-treated versus control mice, indicating that DCA affected the humoral response. In contrast, DCA had no effect on T cell-or granulocyte-mediated responses. The beneficial effect of DCA was present in female DBA/1 mice only. This was due in part to the effect of estrogen, since ovariectomized mice did not benefit from DCA treatment to the same extent as sham-operated controls (day 30, 38.7% of ovarectomized mice had arthritis vs. only 3.4% in sham-operated group). Conclusion Our results indicate that DCA delays the onset and alleviates the progression of CIA in an estrogen-dependent manner.
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