Gelatinase activity in synovial fluid and synovium obtained from healthy and osteoarthritic joints of dogs

Susan W. Volk, Amy Kapatkin, Mark E. Haskins, Raquel M. Walton, Marina D'Angelo

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Objective - To determine matrix metalloproteinase (MMP) activity in synovial fluid (SF) obtained from the joints of dogs with degenerative joint disease (DJD) secondary to various underlying conditions. Sample Population - 35 samples of SF obtained from 18 clinically normal (control) dogs and 34 samples of SF obtained from 17 dogs with DJD; dogs with DJD were from 2 populations (client-owned dogs and research dogs that had DJD secondary to the lysosomal storage disease mucopolysaccharidosis VII). Procedure - MMP activity in samples of SF was semiquantitatively examined by use of gelatin or casein zymography. Western blot analysis was performed by use of antibodies for MMP-2 and MMP-9. In addition, in situ MMP activity was observed in sections of synovial membrane obtained from healthy and osteoarthritic joints. Results - Samples of SF from osteoarthritic joints had higher MMP-2 activity and dramatically increased MMP-9 activity, compared with values for healthy joints. Substrate-overlay analyses indicated minimal gelatin-degrading activity in synoviocytes obtained from control dogs, whereas greater activity was seen in osteoarthritic synoviocytes, with additional activity in the underlying tissue. Conclusions and Clinical Relevance - Higher MMP-2 activity and dramatic increases in MMP-9 activity were associated with the osteoarthritic state, even though MMP-2 activity was detected in healthy joints. This study expands information on MMP production in SF of osteoarthritic joints in other species and documents the similarity of MMP activity patterns regardless of the cause of DJD.

Original languageEnglish (US)
Pages (from-to)1225-1233
Number of pages9
JournalAmerican Journal of Veterinary Research
Volume64
Issue number10
DOIs
StatePublished - Oct 1 2003
Externally publishedYes

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Gelatinases
synovial fluid
Synovial Membrane
Synovial Fluid
joints (animal)
osteoarthritis
metalloproteinases
Joints
Matrix Metalloproteinases
Dogs
gelatinase A
Osteoarthritis
Matrix Metalloproteinase 2
dogs
gelatinase B
Matrix Metalloproteinase 9
Gelatin
gelatin
Mucopolysaccharidosis VII
sampling

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Gelatinase activity in synovial fluid and synovium obtained from healthy and osteoarthritic joints of dogs. / Volk, Susan W.; Kapatkin, Amy; Haskins, Mark E.; Walton, Raquel M.; D'Angelo, Marina.

In: American Journal of Veterinary Research, Vol. 64, No. 10, 01.10.2003, p. 1225-1233.

Research output: Contribution to journalArticle

Volk, Susan W. ; Kapatkin, Amy ; Haskins, Mark E. ; Walton, Raquel M. ; D'Angelo, Marina. / Gelatinase activity in synovial fluid and synovium obtained from healthy and osteoarthritic joints of dogs. In: American Journal of Veterinary Research. 2003 ; Vol. 64, No. 10. pp. 1225-1233.
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