| First Author | Joosten LA | Year | 1999 |
| Journal | Inflamm Res | Volume | 48 |
| Issue | 1 | Pages | 48-55 |
| PubMed ID | 9987683 | Mgi Jnum | J:55993 |
| Mgi Id | MGI:1339858 | Doi | 10.1007/s000110050396 |
| Citation | Joosten LA, et al. (1999) Synergistic protection against cartilage destruction by low dose prednisolone and interleukin-10 in established murine collagen arthritis. Inflamm Res 48(1):48-55 |
| abstractText | OBJECTIVE: To investigate potential synergy of low dosages glucocorticosteroids (GC's) and interleukin-10 (IL-10), using established murine collagen-induced arthritis (CIA) as a model. METHODS: DBA-1J/BOM mice were immunized with bovine type II collagen and boosted at day 21. Mice with established CIA were selected and treated for at least 7 days with either prednisolone (0.05-5 mg/kg), IL-10 (0.1-5 micrograms/day) or the combination of prednisolone/IL-10 (0.05/1 and 0.05/5). Arthritis score was monitored visually, and joint pathology was examined by histology, and serum cartilage oligomeric matrix protein (COMP) measured. RESULTS: Amelioration of CIA was found with dosages of 1 and 5 mg/kg prednisolone, while a dose of 0.05 mg/kg prednisolone was ineffective. Treatment of CIA with 5 micrograms/day IL-10 resulted in a mild, but significant suppression. Synergistic effects were seen with the combination of low dose prednisolone and IL-10 (0.05 mg/kg, 1 microgram/day). Both arthritis score and joint pathology were significantly reduced. Moreover, COMP levels were significantly decreased after IL-10/prednisolone treatment, confirming decreased cartilage involvement. Of great interest, treatment of CIA with prednisolone/IL-10 markedly reduced IL-1 beta and enhanced IL-10 production by synovial tissue. In addition, synovial mRNA levels for IL-1 beta were decreased, while mRNA levels for IL-10 and IL-1Ra were upregulated by combined treatment. CONCLUSION: This study demonstrates synergistic effects of combined treatment with prednisolone and IL-10 on suppressing disease activity of CIA as well as reducing cartilage. |
