Frean SP, Lees P. Effects of polysulfated glycosaminoglycan and hyaluronan on prostaglandin E2 production by cultured equine synoviocytes.
Am J Vet Res 2000;
61:499-505. [PMID:
10803643 DOI:
10.2460/ajvr.2000.61.499]
[Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE
To investigate effects of the anti-arthritic agents hyaluronan and polysulfated glycosaminoglycan (PSGAG) on inflammatory metabolism in cultured equine synoviocytes.
SAMPLE POPULATION
Synoviocytes cultured from samples obtained from the metacarpophalangeal joints of 4 horses.
PROCEDURE
Equine synoviocytes were grown in monolayer culture. Synoviocytes were stimulated with lipopolysaccharide (LPS) and simultaneously treated with various concentrations of hyaluronan or PSGAG for 48 hours. Three hyaluronan preparations were compared. Prostaglandin E2 (PGE2) concentrations in culture medium were measured, using radioimmunoassay.
RESULTS
The highest concentrations of hyaluronan and PSGAG tested inhibited PGE2 production.
CONCLUSIONS AND CLINICAL RELEVANCE
Clinically achievable concentrations of hyaluronan and PSGAG inhibited PGE2 synthesis by cultured equine synoviocytes. This anti-inflammatory action may be a mechanism through which these agents exert anti-arthritic effects. The effect was obtained at concentrations that can be achieved by use of intra-articular, but not systemic, administration of hyaluronan or PSGAG.
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