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Annals of the Rheumatic Diseases logoLink to Annals of the Rheumatic Diseases
. 1990 Feb;49(2):121–124. doi: 10.1136/ard.49.2.121

Partial purification and characterisation of a synovial fluid inhibitor of osteoblasts.

R A Hazelton 1, R Vedam 1, P P Masci 1, A N Whitaker 1
PMCID: PMC1003992  PMID: 2317114

Abstract

A polypeptide inhibitor of osteoblast proliferation is described which occurs in synovial effusions of patients with rheumatoid arthritis. Partial purification of the inhibitor showed a molecular weight of approximately 81,000 by gel electrophoresis. This polypeptide seems to be unique as no inhibitor of osteoblasts of similar molecular weight has been previously described in rheumatoid synovial effusions.

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Selected References

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