A new study in Aging Cell describes how a key protein, called Signal Transducer and Activator of Transcription 3 (STAT3), might turn back the clock on aging cartilage that leads to osteoarthritis.

“STAT3 performs an astonishing repertoire of roles in development and regeneration, as well as inflammatory disease and cancer. In this study, we found an innovative chemical approach for reversing aging of joint-forming cells in a clinically relevant manner, because this intervention is simple and fully controlled,” said the study’s co-corresponding author Denis Evseenko, who is an Professor of Orthopaedic Surgery, and Stem Cell Biology and Regenerative Medicine at USC, and holds the J. Harold and Edna LaBriola Chair in Genetic Orthopedic Research.

“We wanted to understand the role of STAT3 in cartilage cells during embryonic development as well as in the context of osteoarthritis,” said co-corresponding author Steve Horvath, a Professor of Human Genetics and Biostatstics at UCLA.

To read more, visit https://stemcell.keck.usc.edu/rewind-clock-on-arthritic-cartilage.