Potential role ofHOXD9 in synoviocyte proliferation

The autocrine role of proteoglycan-4 (PRG4) in modulating osteoarthritic synoviocyte proliferation and expression of matrix degrading enzymes

BACKGROUND Lubricin/proteoglycan 4 (PRG4) is a mucinous glycoprotein secreted by synovial fibroblasts and superficial zone chondrocytes. Recently, we showed that recombinant human PRG4 (rhPRG4) is a putative ligand for CD44 receptor. rhPRG4-CD44 interaction inhibits cytokine-induced rheumatoid arthritis synoviocyte proliferation. The objective of this study is to decipher the autocrine function...

Pivotal Role of IFN Regulatory Factor 3 Synoviocyte Innate Immune

Synoviocyte innate immune responses: TANK-binding kinase-1 as a potential therapeutic target in rheumatoid arthritis.

OBJECTIVES Innate immune responses in the rheumatoid synovium contribute to inflammation and joint destruction in RA. Two IκB kinase (IKK)-related kinases, TNF receptor associated factor (TRAF) family member-associated nuclear factor κ-light-chain enhancer of activated B cells (NF-κB) activator (TANK)-binding kinase 1 (TBK1) and IKKε, potentially regulate synovitis by activating IFN response ge...

[Synoviocyte cultures from synovial fluid].

UNLABELLED The study of the pathogenetic mechanisms of rheumatic diseases is in general carried out through "in vitro" systems based on cellular cultures models. The difficulties to achieve fresh human tissue prompted us to develop a simpler method to obtain fibroblast-like synovial cells from synovial fluid (SF). METHODS SF was collected from the knees of 5 patients with rheumatoid arthritis...

A critical role for adrenomedullin-calcitonin receptor-like receptor in regulating rheumatoid fibroblast-like synoviocyte apoptosis.

Rheumatoid arthritis (RA) is characterized by fibroblast-like synoviocyte (FLS) hyperplasia, which is partly ascribable to decreased apoptosis. In this study, we show that adrenomedullin (ADM), an antiapoptotic peptide, is constitutively secreted in larger amounts by FLS from joints with RA (RA-FLS) than with osteoarthritis (OA-FLS). ADM secretion was regulated by TNF-alpha. Peptidylglycine alp...