Breakthrough To Restore Aging Joints Could Help Treat Osteoarthritis
At last.
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Researchers at Stanford University have identified a protein that may hold the key to reversing osteoarthritis and restoring damaged joints. Scientists discovered that an enzyme called 15-PGDH accumulates with age and prevents the body from repairing cartilage. When they blocked this protein in aged mice, worn cartilage began to thicken and regenerate, suggesting a potential pathway for treating joint deterioration.
The Stanford team tested their approach on both animal models and human cartilage samples obtained from knee replacement patients. Results showed that blocking 15-PGDH made tissue stiffer and less inflamed, with aged cartilage developing characteristics similar to young, healthy tissue. Notably, the regeneration did not require stem cells; instead, existing cartilage cells improved their function when the problematic enzyme was reduced. In young mice with simulated injuries, blocking the protein prevented arthritis from developing altogether.
This breakthrough represents one of several promising approaches currently being pursued to eliminate osteoarthritis. The US government’s Advanced Research Projects Agency for Health has invested over $100 million in multiple competing research teams through its NITRO program. Teams at the University of Colorado Boulder and Columbia University have already demonstrated cartilage and bone regeneration in animals using different methods, including injectable drug-delivery systems and 3D-printed scaffolds. Additionally, recent research suggests that semaglutide, a medication already in clinical use, may protect joints through mechanisms independent of weight loss.
Scientists involved in these efforts express optimism about moving toward human trials. “Our goal is not just to treat pain and halt progression, but to end this disease,” said one researcher leading the advancement of these potential therapies.
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Originally reported by Sciencealert →
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