Publication Date

2015

Journal Title

Clin Immunol

Abstract

Little is known about the regulation of arthritis severity and joint damage in rheumatoid arthritis (RA). Fibroblast-like synoviocytes (FLS) have a central role in joint damage and express increased levels of the cation channel Trpv2. We aimed at determining the role of Trpv2 in arthritis. Treatment with Trpv2-specific agonists decreased the in vitro invasiveness of FLS from RA patients and arthritic rats and mice. Trpv2 stimulation suppressed IL-1beta-induced expression of MMP-2 and MMP-3. Trpv2 agonists, including the new and more potent LER13, significantly reduced disease severity in KRN serum- and collagen-induced arthritis, and reduced histologic joint damage, synovial inflammation, and synovial blood vessel numbers suggesting anti-angiogenic activity. In this first in vivo use of Trpv2 agonists we discovered a new central role for Trpv2 in arthritis. These new compounds have the potential to become new therapies for RA and other diseases associated with inflammation, invasion, and angiogenesis.

Volume Number

158

Issue Number

2

Pages

183-92

Document Type

Article

EPub Date

2015/04/15

Status

Faculty, Northwell Researcher

Facility

School of Medicine; Northwell Health

Primary Department

Molecular Medicine

Additional Departments

General Internal Medicine

PMID

25869297

DOI

10.1016/j.clim.2015.04.001


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