alexa The assessment of cartilage degradation in vivo: development of an immunoassay for the measurement in body fluids of type II collagen cleaved by collagenases.
Medicine

Medicine

General Medicine: Open Access

Author(s): Poole AR, Ionescu M, Fitzcharles MA, Billinghurst RC

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Abstract A monoclonal antibody has been developed which recognizes a neoepitope in type II collagen which is generated by the intrahelical cleavage of collagenases. Antibody reactivity is directed at the carboxyl-terminus of the TCA or 3/4 piece of the degraded alpha1(II) chain. Reactivity is dependent upon hydroxylation of proline. Evidence is provided suggesting that epitope binding involves the recognition of a conformational neoepitope. Using an ELISA, we show that this neoepitope can be detected in the urines and sera of nonarthritic persons and patients with rheumatoid arthritis (RA). An increased content is observed in the sera and urines of patients. The assay may be of value in studying cartilage type II degradation both in vitro and in vivo such as in those with arthritis.
This article was published in J Immunol Methods and referenced in General Medicine: Open Access

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