Proinflammatory cytokines detectable in synovial fluids from patients with temporomandibular disorders

Tetsu Takahashi, Toshirou Kondoh, Masayuki Fukuda, Yoshiyuki Yamazaki, Tomoko Toyosaki, Ryuji Suzuki

Research output: Contribution to journalArticlepeer-review

174 Citations (Scopus)

Abstract

Objective. To measure the levels of the proinflammatory cytokines, interleukin (IL)-1β, IL-6, tumor necrosis factor- (TNF)α, IL-8, and interferon- (IFN) γ i synovial fluid samples taken from patients with temporomandibular disorders (TMD). Study design. We studied 6 asymptomatic volunteers and 51 patients with TMD. The IL-1β, IL-6, TNF-α, IL-8, and IFN-γ levels in temporomandibular joint synovial fluid were measured using enzyme-linked immunosorbent assay. Results. Measurable level of at least one cytokine in the synovial fluid was found in 40 (64.5%) of 62 joints in the patients: IL-1β and IFN-γ each detected in 18 (29.0%) of 62 joints; IL-6 in 13 (21.0%) of 62 joints; IL-8 in 11 (19.3%) of 57 joints; and TNF-α in only 5 (8.1%) of 62 joints. None of these cytokines was detectable in the synovial fluid in the control group. Furthermore, there was a strong correlation between the detection of IL-1β and pain in the joint area. Conclusions. These data clearly demonstrate increased levels of several proinflammatory cytokines in certain patients with TMD and suggest that these cytokines may play a role in the pathogenesis of synovitis and degenerative changes of the cartilaginous tissue and bone of the temporomandibular joint.

Original languageEnglish
Pages (from-to)135-141
Number of pages7
JournalOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
Volume85
Issue number2
DOIs
Publication statusPublished - 1998 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Surgery
  • Oral Surgery
  • Otorhinolaryngology
  • Dentistry(all)

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