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Stem Cells International
Volume 2017 (2017), Article ID 9542702, 13 pages
https://doi.org/10.1155/2017/9542702
Research Article

Paracrine Potential of the Human Adipose Tissue-Derived Stem Cells to Modulate Balance between Matrix Metalloproteinases and Their Inhibitors in the Osteoarthritic Cartilage In Vitro

1Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
2Clinic of Rheumatology, Orthopaedics-Traumatology and Reconstructive Surgery, Vilnius University Faculty of Medicine, Vilnius, Lithuania
3EFS Pyrénéés-Méditerranéé, Toulouse, France
4INSERM U844, Hôpital Saint-Eloi and Hôpital Lapeyronie, Université Montpellier 1, Montpellier, France

Correspondence should be addressed to Eiva Bernotiene

Received 24 January 2017; Revised 10 April 2017; Accepted 15 May 2017; Published 27 July 2017

Academic Editor: Heinrich Sauer

Copyright © 2017 Jaroslav Denkovskij et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Adipose tissue represents an abundant source of stem cells. Along with anti-inflammatory effects, ASC secrete various factors that may modulate metabolism of extracellular matrix in osteoarthritic (OA) cartilage, suggesting that the presence of ASC could be advantageous for OA cartilage due to the recovery of homeostasis between matrix metalloproteinases (MMPs) and their tissue inhibitors of metalloproteinases (TIMPs). To evaluate these effects, cartilage explants (CE) were cocultured with ASC for 3 and 7 days under stimulation with or without IL-1β. The pattern of gene expression in CE was modified by ASC, including the upregulation of COL1A1 and COL3A1 and the downregulation of MMP13 and COL10A1. The production of MMP-1, MMP-3, and MMP-13 by ASC was not significant; moreover, cocultures with ASC reduced MMP-13 production in CE. In conclusion, active production of TIMP-1, TIMP-2, TIMP-3, IL-6, IL-8, and gelatinases MMP-2 and MMP-9 by ASC may be involved in the extracellular matrix remodelling, as indicated by the altered expression of collagens, the downregulated production of MMP-13, and the reduced chondrocyte apoptosis in the cocultured CE. These data suggest that ASC modulated homeostasis of MMPs/TIMPs in degenerated OA cartilage in vitro and might be favourable in case of the intra-articular application of ASC therapy for the treatment of OA.