A possible role for TSLP in inflammatory arthritis

Thymic stromal lymphopoietin (TSLP) is an IL-7-like cytokine that triggers dendritic cell-mediated Th2-type inflammatory responses and is considered as a master switch for allergic inflammation. In this study, we found increased levels of TSLP and, also TNF-α as previously reported, in synovial flui...

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Veröffentlicht in:Biochemical and biophysical research communications 2007-05, Vol.357 (1), p.99-104
Hauptverfasser: Koyama, Kensuke, Ozawa, Tetsuro, Hatsushika, Kyosuke, Ando, Takashi, Takano, Shinichi, Wako, Masanori, Suenaga, Fumiko, Ohnuma, Yuko, Ohba, Tetsuro, Katoh, Ryohei, Sugiyama, Hajime, Hamada, Yoshiki, Ogawa, Hideoki, Okumura, Ko, Nakao, Atsuhito
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container_issue 1
container_start_page 99
container_title Biochemical and biophysical research communications
container_volume 357
creator Koyama, Kensuke
Ozawa, Tetsuro
Hatsushika, Kyosuke
Ando, Takashi
Takano, Shinichi
Wako, Masanori
Suenaga, Fumiko
Ohnuma, Yuko
Ohba, Tetsuro
Katoh, Ryohei
Sugiyama, Hajime
Hamada, Yoshiki
Ogawa, Hideoki
Okumura, Ko
Nakao, Atsuhito
description Thymic stromal lymphopoietin (TSLP) is an IL-7-like cytokine that triggers dendritic cell-mediated Th2-type inflammatory responses and is considered as a master switch for allergic inflammation. In this study, we found increased levels of TSLP and, also TNF-α as previously reported, in synovial fluid specimens derived from patients with rheumatoid arthritis (RA) when compared with those from patients with osteoarthritis (OA). In addition, TNF-α up-regulated TSLP expression in RA- and OA-derived synovial fibroblasts, which was inhibited by IFN-γ. Furthermore, anti-TSLP neutralizing antibody ameliorated a TNF-α-dependent experimental arthritis induced by anti-type II collagen antibody in mice. Collectively, these results suggest that TSLP, as a downstream molecule of TNF-α, may be involved in the pathophysiology of inflammatory arthritis. TSLP might thus play a role not only in allergic diseases but also in inflammatory arthritis such as RA.
doi_str_mv 10.1016/j.bbrc.2007.03.081
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subjects Adult
Aged
Aged, 80 and over
Arthritis, Rheumatoid - immunology
Cells, Cultured
Cytokines - immunology
Female
Fibroblasts - drug effects
Fibroblasts - immunology
Humans
Male
Middle Aged
Osteoarthritis - immunology
Rheumatoid arthritis
Synovial fibroblasts
Synovial Fluid - drug effects
Synovial Fluid - immunology
TNF-α
TSLP
Tumor Necrosis Factor-alpha - administration & dosage
Tumor Necrosis Factor-alpha - immunology
title A possible role for TSLP in inflammatory arthritis
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