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AMPK: implications in osteoarthritis and therapeutic targets
Junjie Wang1, Jiali Li2, Deye Song1
1Department of Orthopaedic Surgery, The Second Xiangya Hospital of Central South University Changsha 410011, Hunan, China.
American Journal of Translational Research
|January 13, 2021
Summary
AMP-activated protein kinase (AMPK) dysfunction contributes to osteoarthritis (OA) by disrupting cellular energy and redox balance in chondrocytes. Targeting AMPK offers a promising therapeutic strategy for OA prevention and treatment.
Area of Science:
- Biochemistry
- Cell Biology
- Rheumatology
Background:
- Osteoarthritis (OA) is a prevalent skeletal disease causing pain and disability in older adults.
- The exact pathogenesis of OA remains unclear, hindering the development of disease-modifying drugs.
- Metabolic alterations are recognized as key pathological changes in OA.
Purpose of the Study:
- To review recent findings on the role of AMP-activated protein kinase (AMPK) in joint homeostasis.
- To explore the central role of AMPK in osteoarthritis (OA) development.
- To highlight therapeutic strategies targeting AMPK for OA prevention.
Main Methods:
- Literature review of recent scientific findings.
- Analysis of the role of AMPK in chondrocyte function and joint tissue.
- Examination of current therapeutic approaches targeting AMPK.
Main Results:
- AMPK is a critical sensor of cellular energy and redox balance in chondrocytes.
- AMPK dysfunction is linked to reduced autophagy, impaired mitochondrial function, oxidative stress, and inflammation.
- These cellular abnormalities contribute to cartilage degeneration, synovial inflammation, and abnormal bone remodeling in OA.
Conclusions:
- AMPK plays a pivotal role in maintaining joint homeostasis.
- Dysfunctional AMPK signaling is a significant factor in osteoarthritis pathogenesis.
- Targeting AMPK presents a novel therapeutic avenue for OA prevention and treatment.
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