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Fibroblast-like synoviocytes from fluid and synovial membrane from primary osteoarthritis demonstrate similar production of interleukin 6, and metalloproteinases 1 and 3

1, 2, 3, 4, 5, 6, 7

  1. Laboratory of Scientific Research #30 “Professor Lineu Freire-Maia”, Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Brazil.
  2. Laboratory of Scientific Research #30 “Professor Lineu Freire-Maia”, Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Brazil.
  3. Laboratory of Scientific Research #30 “Professor Lineu Freire-Maia”, Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Brazil.
  4. Laboratory of Scientific Research #30 “Professor Lineu Freire-Maia”, Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Brazil.
  5. Laboratory of Scientific Research #30 “Professor Lineu Freire-Maia”, Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Brazil.
  6. Laboratory of Scientific Research #30 “Professor Lineu Freire-Maia”, Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Brazil.
  7. Laboratory of Scientific Research #30 “Professor Lineu Freire-Maia”, Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Brazil. andradem@medicina.ufmg.br

CER11387 Submission on line
2019 Vol.37, N°2 - PI 0306, PF 0309
Brief Papers

Rheumatology Article

 

Abstract

OBJECTIVES:
The objective of the study was to compare the production of metalloproteinases (MMP)-1, -3 and interleukin (IL)-6 by fibroblast-like synoviocytes (FLS) derived from synovial fluid (FD-FLS), and FLS derived from synovial tissue (TD-FLS) of patients with primary osteoarthritis (OA). The more accessible FD-FLS could facilitate the study of the role of these cells in OA pathophysiology.
METHODS:
MMP-1, MMP-3, and IL-6 levels were measured in the supernatant culture at baseline and 22 hours after stimulation with TNF-α and IL-1 β.
RESULTS:
There was no difference at baseline between MMP-1, MMP-3 and IL-6 production by FD-FLS and TDFLS. Analogous to baseline, stimulation of FD-FLS and TD-FLS with IL-1β and TNF-α did not result in difference on MMP-3 and IL-6 production. However, TD-FLS produced more MMP-1 than FD-FLS after stimulation with IL-1β (p=0.01). Additionally, there was a positive correlation for production of MMP-1, MMP-3 and IL-6 between FD-FLS and TD-FLS (r=0.40 and p<0.0008; r=0.66 and p<0.0001; r=0.76 and p<0.0001, respectively). Supporting this statistical significant positive correlation, the Bland-Altman plotting, showed a homogeneous distribution of the values and low mean disagreement rates between all results of FD-FLS and TD-FLS (23.1%, 56.8% and 48.1%, respectively).
CONCLUSIONS:
Our data demonstrated functional similarity between FD-FLS and TD-FLS and support the use of a more accessible source of FLS for the study of the pathogenesis of joint destruction and therapeutic targets in primary OA.

PMID: 30620271 [PubMed]

Received: 08/05/2018 - Accepted : 03/09/2018 - In Press: 19/12/2018 - Published: 19/03/2019