Journal of Bone and Joint Surgery, 1974;56:1239-1245.
© 1974 by The Journal of Bone and Joint Surgery, Inc
Uridine Diphosphate (UDP) Stimulation of Protein Polysaccharide Production
A PRELIMINARY REPORT
MICHAEL G. EHRLICH M.D.1,
HENRY J. MANKIN M.D.1,
BENJAMIN V. TREADWELL B.A.1, and
HARDIN JONES B.A.1
1 From the Departments of Orthopaedics of the Massachusetts General Hospital and Harvard Medical School, Boston, and the Hospital for Joint Diseases and Mount Sinai School of Medicine of the City University of New York
Uridine diphosphate, at a concentration of one millimole per milliliter, was found to stimulate the rate of incorporation of 35SO4 and 3H-glycine into articular cartilage both in vivo and in vitro. These findings suggest that uridine diphosphate somehow acts to increase proteoglycan synthesis by the chondrocyte. The mechanism of action is obscure, but the data suggest that uridine diphosphate may act as a stimulator of ribonucleic acid synthesis.