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Software-Assisted Quantitative Measurement of Osteoarthritic Subchondral Bone Thickness
Published on: March 18, 2022
Correlation between MMP-13 and HDAC7 expression in human knee osteoarthritis
Reiji Higashiyama1, Shigeru Miyaki, Satoshi Yamashita
1Division of Arthritis Research, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA.
Modern Rheumatology
|September 29, 2009
Summary
Histone deacetylase 7 (HDAC7) is elevated in osteoarthritis (OA) cartilage and promotes matrix metalloproteinase-13 (MMP-13) gene expression, contributing to cartilage degradation. This suggests HDAC7 is a potential therapeutic target for OA.
Area of Science:
- Biochemistry
- Molecular Biology
- Pathology
Background:
- Osteoarthritis (OA) is characterized by cartilage degradation.
- Matrix metalloproteinase-13 (MMP-13) is implicated in OA pathogenesis.
- Histone deacetylase (HDAC) inhibitors are being explored for OA therapy.
Purpose of the Study:
- To investigate the correlation between HDACs and MMP-13 in osteoarthritis.
- To determine the role of HDAC7 in MMP-13 expression in OA cartilage.
Main Methods:
- Comparison of HDAC expression in OA and healthy cartilage.
- Immunohistochemistry to confirm HDAC7 expression.
- Small interfering RNA (siRNA) to knockdown HDAC7 in human chondrosarcoma cells (SW1353).
Main Results:
- HDAC7 expression was significantly elevated in OA cartilage compared to healthy donors.
- High HDAC7 levels in OA cartilage were confirmed by immunohistochemistry.
- HDAC7 knockdown suppressed interleukin-1-dependent and independent MMP-13 gene induction.
Conclusions:
- Elevated HDAC7 expression in human OA cartilage may drive cartilage degradation.
- HDAC7 contributes to OA pathogenesis by promoting MMP-13 gene expression.
- HDAC7 represents a potential therapeutic target for osteoarthritis.
