Story perspectives

Breakthrough Injection Promotes Knee Cartilage Regrowth in Mice

2/17/2026

Summary

Story summary

Stanford Medicine researchers blocked the enzyme 15-PGDH with an injection to promote knee cartilage regrowth in older mice.
In older mice, injections given twice weekly for four weeks significantly reduced osteoarthritis pain and preserved knee cartilage.
Human knee samples showed recovery of cartilage in laboratory conditions when exposed to the treatment.
Future human trials will assess the injection's effectiveness in delaying joint replacements, particularly after anterior cruciate ligament (ACL) injuries.

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Story summary

Stanford Medicine researchers blocked the enzyme 15-PGDH with an injection to promote knee cartilage regrowth in older mice.
In older mice, injections given twice weekly for four weeks significantly reduced osteoarthritis pain and preserved knee cartilage.
Human knee samples showed recovery of cartilage in laboratory conditions when exposed to the treatment.
Future human trials will assess the injection's effectiveness in delaying joint replacements, particularly after anterior cruciate ligament (ACL) injuries.