title: Latent collagenase of rheumatoid synovial fluid is not of granulocytic origin.
abstract: The physicochemical properties of three latent collagenases derived from rheumatoid synovial fluid, polymorphonuclear leucocytes and culture medium of rheumatoid synovium were compared. It has been shown that synovial fluid enzyme is similar to that of synovium collagenase from tissue culture and differs significantly in molecular size and protein charge from granulocyte collagenase. The results indicate that the latent, trypsin-activable collagenase present in rheumatoid synovial fluid is not of granulocytic origin and seems to derive from the synovial membrane.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000201:enzymology*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D046508:Culture Techniques; D004789:Enzyme Activation / Q000187:drug effects; D006098:Granulocytes / Q000201:enzymology*; D006801:Humans; D003012:Microbial Collagenase / Q000378:metabolism*; D008970:Molecular Weight; D013582:Synovial Fluid / Q000201:enzymology*; D014357:Trypsin / Q000494:pharmacology
chemical_list: D014357:Trypsin; D003012:Microbial Collagenase