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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-62506

Nikitopoulou, Ioanna; Oikonomou, Nikos; Karouzakis, Emmanuel; Sevastou, Ioanna; Nikolaidou-Katsaridou, Nefeli; Zhao, Zhenwen; Mersinias, Vassilis; Armaka, Maria; Xu, Yan; Masu, Masayuki; Mills, Gordon B; Gay, Steffen; Kollias, George; Aidinis, Vassilis (2012). Autotaxin expression from synovial fibroblasts is essential for the pathogenesis of modeled arthritis. Journal of Experimental Medicine, 209(5):925-933.

Published Version (English)


Rheumatoid arthritis is a destructive arthropathy characterized by chronic synovial inflammation that imposes a substantial socioeconomic burden. Under the influence of the proinflammatory milieu, synovial fibroblasts (SFs), the main effector cells in disease pathogenesis, become activated and hyperplastic, releasing proinflammatory factors and tissue-remodeling enzymes. This study shows that activated arthritic SFs from human patients and animal models express significant quantities of autotaxin (ATX; ENPP2), a lysophospholipase D that catalyzes the conversion of lysophosphatidylcholine to lysophosphatidic acid (LPA). ATX expression from SFs was induced by TNF, and LPA induced SF activation and effector functions in synergy with TNF. Conditional genetic ablation of ATX in mesenchymal cells, including SFs, resulted in disease attenuation in animal models of arthritis, establishing the ATX/LPA axis as a novel player in chronic inflammation and the pathogenesis of arthritis and a promising therapeutic target.

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Rheumatology Clinic and Institute of Physical Medicine
DDC:610 Medicine & health
Deposited On:04 Jun 2012 09:05
Last Modified:17 Mar 2014 09:35
Publisher:Rockefeller University Press
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:10.1084/jem.20112012
PubMed ID:22493518
Citations:Web of Science®. Times Cited: 28
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Scopus®. Citation Count: 29

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