Abstract | OBJECTIVE: METHODS: We treated chondrocytes from five osteoarthritis patients with IL-1β, IL-1β+ SSZ, IL-1β+ tofacitinib, SSZ alone, and tofacitinib alone. Then, we compared protein profiles of the chondrocytes using two-dimensional differential gel electrophoresis. Further, we identified altered proteins by mass spectrometry. RESULTS: Out of 892 detected protein spots, the IL-1β stimulation changed intensity of 43 spots more than 1.3-fold or less than 1/1.3-fold significantly. SSZ suppressed the IL-1β-induced intensity alteration in 16 (37%) out of the 43 protein spots. Tofacitinib suppressed the IL-1β-induced alteration in 4 (9.3%) out of the 43 spots. The production of AMP deaminase 2 and procollagen-lysine, 2-oxoglutarate 5-dioxygenase 2 were increased by IL-1β and the increase was suppressed by SSZ and by tofacitinib. SSZ alone altered intensity of 273 (31%) out of the 852 spots significantly, whereas tofacitinib alone altered intensity of only 24 (2.7%) out of them. CONCLUSION: SSZ and, to lesser extent, tofacitinib suppress the effects of IL-1β on the protein profiles of chondrocytes. Our data would promote understanding of effects of the drugs on chondrocytes.
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Authors | Wataru Endo, Mitsumi Arito, Toshiyuki Sato, Manae S Kurokawa, Kazuki Omoteyama, Nobuko Iizuka, Kazuki Okamoto, Naoya Suematsu, Hiroshi Nakamura, Moroe Beppu, Tomohiro Kato |
Journal | Modern rheumatology
(Mod Rheumatol)
Vol. 24
Issue 5
Pg. 844-50
(Sep 2014)
ISSN: 1439-7609 [Electronic] England |
PMID | 24329131
(Publication Type: Journal Article)
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Chemical References |
- Interleukin-1beta
- Piperidines
- Pyrimidines
- Pyrroles
- Sulfasalazine
- tofacitinib
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Topics |
- Aged
- Cartilage, Articular
(drug effects, metabolism)
- Chondrocytes
(drug effects, metabolism)
- Female
- Humans
- Interleukin-1beta
(pharmacology)
- Male
- Piperidines
(pharmacology)
- Pyrimidines
(pharmacology)
- Pyrroles
(pharmacology)
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
- Sulfasalazine
(pharmacology)
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