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Targeting CCN Proteins in Rheumatoid Arthritis and Osteoarthritis
Iona J MacDonald1, Chien-Chung Huang2,3, Shan-Chi Liu4
1Graduate Institute of Basic Medical Science, Collage of Medicine, China Medical University, Taichung 40402, Taiwan.
Abstract:
The CCN family of matricellular proteins (CYR61/CCN1, CTGF/CCN2, NOV/CCN3 and WISP1-2-3/CCN4-5-6) are essential players in the key pathophysiological processes of angiogenesis, wound healing and inflammation. These proteins are well recognized for their important roles in many cellular processes, including cell proliferation, adhesion, migration and differentiation, as well as the regulation of extracellular matrix differentiation. Substantial evidence implicates four of the proteins (CCN1, CCN2, CCN3 and CCN4) in the inflammatory pathologies of rheumatoid arthritis (RA) and osteoarthritis (OA). A smaller evidence base supports the involvement of CCN5 and CCN6 in the development of these diseases. This review focuses on evidence providing insights into the involvement of the CCN family in RA and OA, as well as the potential of the CCN proteins as therapeutic targets in these diseases.
Insights
The CCN proteins are crucial in inflammation, angiogenesis, and wound healing. This review explores their role in rheumatoid arthritis and osteoarthritis, highlighting their therapeutic potential.
Area of Science:
- Biochemistry and Molecular Biology
- Immunology
- Rheumatology
Background:
- The CCN family of matricellular proteins (CYR61/CCN1, CTGF/CCN2, NOV/CCN3, WISP1-2-3/CCN4-5-6) are key regulators of cellular processes like proliferation, adhesion, migration, differentiation, and extracellular matrix remodeling.
- These proteins play significant roles in angiogenesis, wound healing, and inflammation.
Purpose of the Study:
- To review the evidence implicating CCN proteins in the pathogenesis of rheumatoid arthritis (RA) and osteoarthritis (OA).
- To explore the therapeutic potential of CCN proteins as targets for treating RA and OA.
Main Methods:
- Literature review of existing studies on CCN proteins and their involvement in inflammatory joint diseases.
- Analysis of evidence linking specific CCN proteins (CCN1-6) to the development and progression of RA and OA.
Main Results:
- Strong evidence implicates CCN1, CCN2, CCN3, and CCN4 in the inflammatory pathologies of RA and OA.
- Emerging evidence suggests a role for CCN5 and CCN6 in the development of these arthritic conditions.
Conclusions:
- The CCN protein family is significantly involved in the pathophysiology of RA and OA.
- CCN proteins represent promising therapeutic targets for the management of inflammatory joint diseases.
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