R-spondin 1 protects against inflammatory bone damage during murine arthritis by modulating the Wnt pathway
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R-spondin 1 protects against inflammatory bone damage during murine arthritis by modulating the Wnt pathway. / Krönke, Gerhard; Uderhardt, Stefan; Kim, Kyung-Ah; Stock, Michael; Scholtysek, Carina; Zaiss, Mario M; Surmann-Schmitt, Cordula; Luther, Julia; Katzenbeisser, Julia; David, Jean-Pierre; Abdollahi-Roodsaz, Shahla; Tran, Karolyn; Bright, Jessica M; Binnerts, Minke E; Akhmetshina, Alfiya; Böhm, Christina; Distler, Jörg H; Joosten, Leo A B; Schett, Georg; Abo, Arie.
in: ARTHRITIS RHEUMATOL, Jahrgang 62, Nr. 8, 01.08.2010, S. 2303-12.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - R-spondin 1 protects against inflammatory bone damage during murine arthritis by modulating the Wnt pathway
AU - Krönke, Gerhard
AU - Uderhardt, Stefan
AU - Kim, Kyung-Ah
AU - Stock, Michael
AU - Scholtysek, Carina
AU - Zaiss, Mario M
AU - Surmann-Schmitt, Cordula
AU - Luther, Julia
AU - Katzenbeisser, Julia
AU - David, Jean-Pierre
AU - Abdollahi-Roodsaz, Shahla
AU - Tran, Karolyn
AU - Bright, Jessica M
AU - Binnerts, Minke E
AU - Akhmetshina, Alfiya
AU - Böhm, Christina
AU - Distler, Jörg H
AU - Joosten, Leo A B
AU - Schett, Georg
AU - Abo, Arie
PY - 2010/8/1
Y1 - 2010/8/1
N2 - OBJECTIVE: During the course of different musculoskeletal diseases, joints are progressively damaged by inflammatory, infectious, or mechanical stressors, leading to joint destruction and disability. While effective strategies to inhibit joint inflammation, such as targeted cytokine-blocking therapy, have been developed during the last decade, the molecular mechanisms of joint damage are still poorly understood. This study was undertaken to investigate the role of the Wnt pathway modulator R-Spondin 1 (RSpo1) in protecting bone and cartilage in a mouse model of arthritis.METHODS: Tumor necrosis factor alpha (TNFalpha)-transgenic mice were treated with vehicle or Rspo1. Mice were evaluated for signs of arthritis, and histologic analysis of the hind paws was performed. Moreover, we determined the effect of Rspo1 on Wnt signaling activity and osteoprotegerin (OPG) expression in murine primary osteoblasts.RESULTS: The secreted Wnt pathway modulator RSpo1 was highly effective in preserving the structural integrity of joints in a TNFalpha-transgenic mouse model of arthritis by protecting bone and cartilage from inflammation-related damage. RSpo1 antagonized the Wnt inhibitor Dkk-1 and modulated Wnt signaling in mouse mesenchymal cells. In osteoblasts, RSpo1 induced differentiation and expression of OPG, thereby inhibiting osteoclastogenesis in vitro. In vivo, RSpo1 promoted osteoblast differentiation and bone formation while blocking osteoclast development, thereby contributing to the integrity of joints during inflammatory arthritis.CONCLUSION: Our results demonstrate the therapeutic potential of RSpo1 as an anabolic agent for the preservation of joint architecture.
AB - OBJECTIVE: During the course of different musculoskeletal diseases, joints are progressively damaged by inflammatory, infectious, or mechanical stressors, leading to joint destruction and disability. While effective strategies to inhibit joint inflammation, such as targeted cytokine-blocking therapy, have been developed during the last decade, the molecular mechanisms of joint damage are still poorly understood. This study was undertaken to investigate the role of the Wnt pathway modulator R-Spondin 1 (RSpo1) in protecting bone and cartilage in a mouse model of arthritis.METHODS: Tumor necrosis factor alpha (TNFalpha)-transgenic mice were treated with vehicle or Rspo1. Mice were evaluated for signs of arthritis, and histologic analysis of the hind paws was performed. Moreover, we determined the effect of Rspo1 on Wnt signaling activity and osteoprotegerin (OPG) expression in murine primary osteoblasts.RESULTS: The secreted Wnt pathway modulator RSpo1 was highly effective in preserving the structural integrity of joints in a TNFalpha-transgenic mouse model of arthritis by protecting bone and cartilage from inflammation-related damage. RSpo1 antagonized the Wnt inhibitor Dkk-1 and modulated Wnt signaling in mouse mesenchymal cells. In osteoblasts, RSpo1 induced differentiation and expression of OPG, thereby inhibiting osteoclastogenesis in vitro. In vivo, RSpo1 promoted osteoblast differentiation and bone formation while blocking osteoclast development, thereby contributing to the integrity of joints during inflammatory arthritis.CONCLUSION: Our results demonstrate the therapeutic potential of RSpo1 as an anabolic agent for the preservation of joint architecture.
KW - Animals
KW - Arthritis, Experimental
KW - Blotting, Western
KW - Bone and Bones
KW - Cartilage
KW - Fluorescent Antibody Technique
KW - In Situ Hybridization
KW - Inflammation
KW - Mice
KW - Mice, Transgenic
KW - Osteoblasts
KW - Reverse Transcriptase Polymerase Chain Reaction
KW - Signal Transduction
KW - Thrombospondins
KW - Tumor Necrosis Factor-alpha
KW - Wnt Proteins
U2 - 10.1002/art.27496
DO - 10.1002/art.27496
M3 - SCORING: Journal article
C2 - 20506554
VL - 62
SP - 2303
EP - 2312
JO - ARTHRITIS RHEUMATOL
JF - ARTHRITIS RHEUMATOL
SN - 2326-5191
IS - 8
ER -