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Overexpression of synoviolin facilitates the formation of a functional synovial biomembrane
Author(s) -
Chen Gang,
Zhang ShaoXiang,
Tao ZhongFen,
Xiong Yan,
Sun Wei,
Lu Ju,
Pan Feng,
Zhang ZhengZhi
Publication year - 2012
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.33286
Subject(s) - hyaluronic acid , tendon , synovial membrane , adhesion , blot , tissue engineering , extracellular matrix , glycosaminoglycan , microbiology and biotechnology , in vivo , staining , focal adhesion , biomedical engineering , biology , chemistry , pathology , anatomy , medicine , signal transduction , immunology , biochemistry , inflammation , organic chemistry , gene
Digital flexor tendon repair poses a significant challenge for hand surgeons. Currently, extrasynovial tendon grafts are frequently used in clinical settings to bridge flexor tendon defects. However, the healing process is always accompanied by postoperative adhesion. This is mostly due to the fact that no synovial membrane covers the extrasynovial tendon surface, in contrast to the intrasynovial tendon. In this study, we present an efficient method of developing a functional synovial biomembrane on the surface of the extrasynovial tendon. Synoviocytes were isolated from the knee joint of a Japanese white rabbit. After being infected with lentivirus, the over‐expression of synoviolin in these synoviocytes was confirmed by semi‐quantitative RT‐PCR and western blotting. Cellular proliferation and increased hyaluronic acid secretion were confirmed in the synoviolin over‐expressing synoviocytes by MTT‐based method, cell cycle assays and ELISA. Furthermore, the synoviolin over‐expressing synoviocytes were co‐cultured with extrasynovial tendons that were harvested from the hind leg of rabbits. After being co‐cultured in vitro for 3 and 7 days, these infected synoviocytes were found to accelerate the formation of a biomembrane on the tendon surface compared to the control group. More importantly, Alcian blue staining confirmed the ability of this cultured biomembrane to produce specific matrices containing acidic carboxyl mucopolysaccharides (mainly hyaluronic acid). All these results demonstrate that the over‐expression of synoviolin stimulates the proliferation and HA secretion of synoviocytes and facilitates the formation of a functional synovial biomembrane. © 2012 Wiley Periodicals, Inc. J Biomed Mater Res Part A, 2012.