Clinical significance of beta-catenin and matrix metalloproteinase-13 in synovial tissue of osteoarthritis

doi:10.3969/j.issn.2095-4344.0294

Abstract

Abstract:

BACKGROUND: Role of Wnt/β-catenin signaling pathway in the pathogenesis of osteoarthritis has been proved by numerous animal experiments and human specimen trials. Wnt/β-catenin signaling pathway and matrix metalloproteinase 13 (MMP-13) play important roles in pathological process of osteoarthritis, and they may be related with each other.
OBJECTIVE: To detect the expression levels of β-catenin and MMP-13 in the synovial tissue of osteoarthritis, and to investigate the relationship between β-catenin and MMP-1 in the pathogenesis of osteoarthritis.
METHODS: Synovial tissues were obtained from the 54 patients undergoing total knee arthroplasty or knee arthroscopic diagnosis and treatment surgery and 12 healthy patients suffering from amputation caused by trauma. The samples were divided into non-, mild-, medium- and severe-osteoarthritis groups based on advanced Mankin scores. The expression levels of β-catenin and MMP-13 in the synovial tissues were detected by immunohistochemistry, and correlation analysis was conducted.
RESULTS AND CONCLUSION: Immunohistochemistry results showed that MMP-13 was negative in the non-osteoarthritis group, positive in 5 (50%) samples in the mild-osteoarthritis group, positive in 11 (65%) samples in the medium-osteoarthritis group and positive in 23 (85%) samples in the severe-osteoarthritis group. β-Catenin was positive in 1 (8%) sample in the non-osteoarthritis group, positive in 7 (70%) samples in the mild-osteoarthritis group, positive in 14 (82%) samples in the medium-osteoarthritis group and positive in 25 (93%) samples in the severe-osteoarthritis group. The expression levels of β-catenin and MMP-13 in the synovial tissues presented a positive correlation (r=0.806, P < 0.001), and the levels increased with joint degeneration becoming severe. These results imply that there is a significant increase in the expression levels of β-catenin and MMP-13 in the synovial tissues of osteoarthritis compared with the non-osteoarthritis group, and β-catenin and MMP-13 exert effects in development of osteoarthritis. Beta-catenin and MMP-13 are closely associated with pathological changes such as cartilage degeneration and synovial inflammation, thus providing new theoretical direction and experimental basis for targeted gene therapy of osteoarthritis.

中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程

Key words: Osteoarthritis, Synovial Membrane, Matrix Metalloproteinase 13, Tissue Engineering

CLC Number:

R318

Li Yue-jun1, Zhu Wei-guo2, Fang Qin-zheng2, Gu Pei-lun1, Gao Peng1, Jian Yong-zhi1, Yang Peng-fei1, Dong Jin-bo2. Clinical significance of beta-catenin and matrix metalloproteinase-13 in synovial tissue of osteoarthritis[J]. Chinese Journal of Tissue Engineering Research, 2018, 22(16): 2472-2477.

Figures/Tables 2

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