Microarray analysis of IL-1beta-stimulated chemokine genes in synovial fibroblasts from human TMJ.

Background: Interleukin (IL)-1beta is thought to play a key role in several pathologic conditions of the temporomandibular joint (TMJ). Gene expression profile of synovial fibroblasts stimulated with IL-1beta was studied by oligonucleotide microarray analysis to elucidate candidate genes associated with intracapsular pathologic conditions of TMJ.

Methods: RNA was isolated from synovial fibroblasts from five patients after IL-1beta treatment.

Tumor necrosis factor-alpha increases chemokine gene expression and production in synovial fibroblasts from human temporomandibular joint.

Background: Synovitis, which is characterized by infiltration of inflammatory cells, often accompanies progression of clinical symptoms of the temporomandibular joint (TMJ). Synovial fibroblasts of the TMJ are believed to play important roles in progression of synovitis. The purpose of this study was to examine production and gene expression of chemokines by synovial fibroblasts stimulated by tumor necrosis factor-alpha (TNF-alpha).

Interleukin-1 beta induces interleukin-6 mRNA expression and protein production in synovial cells from human temporomandibular joint.

Background: Interleukin (IL)-1 beta and IL-6 were found to be elevated in fluid from the temporomandibular joint (TMJ), although the source of these cytokines was not elucidated. There is little known about the function and response of synovial cells in the TMJ. The purpose of this study was to prepare cultured human synovial cells (HTS cells) from the TMJ and to investigate IL-6 production in HTS cells incubated with IL-1 beta.

Interleukin-1beta stimulates interleukin-8 production and gene expression in synovial cells from human temporomandibular joint.

Purpose: The aims of the present study were to isolate and characterize cultured synovial cells from human temporomandibular joint (TMJ) specimens and to investigate the effect of interleukin (IL)-1beta on IL-8 production and gene expression in those cells.

Materials And Methods: Synovial cells (HTS cells) were isolated from TMJ synovial tissues using an outgrowth method and then primary cultured. The cells were examined for cell-specific markers of fibroblast, macrophage, and dendritic cells using immunocytochemistry.