A comparison of the effect of transforming growth factor beta 1 on pyrophosphate elaboration from various articular tissues. Arthritis Rheum 1993 Apr;36(4):539-42
Date
04/01/1993Pubmed ID
7681284DOI
10.1002/art.1780360415Scopus ID
2-s2.0-0027461107 (requires institutional sign-in at Scopus site) 35 CitationsAbstract
OBJECTIVE: The purpose of this study was to determine the effect of transforming growth factor beta 1 (TGF beta 1) on inorganic pyrophosphate (PPi) elaboration from articular tissues to better understand the pathophysiology of calcium pyrophosphate dihydrate (CPPD) crystal deposition in the joint.
METHODS: PPi was measured in the media of adult porcine articular tissue in organ culture and monolayer cultures.
RESULTS: TGF beta 1 strongly stimulated PPi elaboration by porcine fibrocartilage and hyaline cartilage. It modestly increased PPi elaboration by ligament, and had no effect on PPi elaborated by synovium. Of all cell types tested in cell culture, only chondrocytes responded to TGF beta 1 by significantly increasing PPi elaboration.
CONCLUSION: TGF beta 1 stimulates PPi elaboration from hyaline cartilage, fibrocartilage, and ligament, indicating that there is in situ CPPD crystal formation in these tissues. The ability of tissues to respond to TGF beta 1 by increasing PPi elaboration correlates with the prevalence of CPPD crystal deposition found clinically. The unique response of chondrocyte monolayers to TGF beta 1 reinforces the key role of the chondrocyte in PPi elaboration in the joint. These findings support an etiologic role for responsiveness to TGF beta 1 in CPPD disease.
Author List
Rosenthal AK, McCarty BA, Cheung HS, Ryan LMAuthor
Ann K. Rosenthal MD Associate Dean, Chief, Professor in the Medicine department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AnimalsCalcium Pyrophosphate
Cartilage
Cartilage, Articular
Cells, Cultured
Chondrocalcinosis
Hyalin
Ligaments
Swine
Synovial Membrane
Tendons
Transforming Growth Factor beta
