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Natural Compounds: Potential Therapeutics for the Inhibition of Cartilage Matrix Degradation in Osteoarthritis
Omer S Ashruf1,2, Mohammad Yunus Ansari1,3
1Department of Anatomy and Neurobiology, Northeast Ohio Medical University, 4209, State Route 44, Rootstown, OH 44272, USA.
Abstract:
Osteoarthritis (OA) is the most common degenerative joint disease characterized by enzymatic degradation of the cartilage extracellular matrix (ECM) causing joint pain and disability. There is no disease-modifying drug available for the treatment of OA. An ideal drug is expected to stop cartilage ECM degradation and restore the degenerated ECM. The ECM primarily contains type II collagen and aggrecan but also has minor quantities of other collagen fibers and proteoglycans. In OA joints, the components of the cartilage ECM are degraded by matrix-degrading proteases and hydrolases which are produced by chondrocytes and synoviocytes. Matrix metalloproteinase-13 (MMP-13) and a disintegrin and metalloproteinase with thrombospondin motifs 4 and 5 (ADAMTS5) are the major collagenase and aggrecanase, respectively, which are highly expressed in OA cartilage and promote cartilage ECM degradation. Current studies using various in vitro and in vivo approaches show that natural compounds inhibit the expression and activity of MMP-13, ADAMTS4, and ADAMTS5 and increase the expression of ECM components. In this review, we have summarized recent advancements in OA research with a focus on natural compounds as potential therapeutics for the treatment of OA with emphasis on the prevention of cartilage ECM degradation and improvement of joint health.
Insights
Natural compounds show promise in treating osteoarthritis (OA) by inhibiting cartilage degradation and improving joint health. These compounds target key enzymes like matrix metalloproteinase-13 (MMP-13) and ADAMTS5, offering a potential disease-modifying approach for OA.
Area of Science:
- Biochemistry
- Pharmacology
- Rheumatology
Background:
- Osteoarthritis (OA) is a prevalent degenerative joint disease causing cartilage extracellular matrix (ECM) degradation, leading to pain and disability.
- Currently, no disease-modifying drugs exist for OA, highlighting the need for therapeutics that can halt ECM degradation and restore joint structure.
- Cartilage ECM, rich in type II collagen and aggrecan, is degraded by enzymes like matrix metalloproteinase-13 (MMP-13) and ADAMTS5 in OA.
Purpose of the Study:
- To review recent advancements in osteoarthritis research focusing on natural compounds as potential therapeutics.
- To emphasize the role of natural compounds in preventing cartilage ECM degradation and improving overall joint health in OA patients.
- To explore how natural compounds modulate the expression and activity of key cartilage-degrading enzymes.
Main Methods:
- Literature review of in vitro and in vivo studies on natural compounds and OA.
- Analysis of research on the mechanisms by which natural compounds affect cartilage ECM components.
- Examination of studies investigating the inhibition of MMP-13 and ADAMTS5 by natural compounds.
Main Results:
- Natural compounds have demonstrated the ability to inhibit the expression and activity of MMP-13 and ADAMTS5, major cartilage-degrading enzymes in OA.
- Studies indicate that natural compounds can increase the expression of essential ECM components, aiding in cartilage repair.
- Evidence suggests natural compounds can mitigate the enzymatic degradation of cartilage ECM, a hallmark of osteoarthritis.
Conclusions:
- Natural compounds represent a promising therapeutic avenue for osteoarthritis, potentially offering disease-modifying effects.
- Targeting cartilage ECM degradation through natural compounds could lead to improved joint health and reduced OA symptoms.
- Further research into natural compounds may yield novel treatments for osteoarthritis, addressing the current lack of disease-modifying drugs.
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