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. 1995 Oct;102(1):106–111. doi: 10.1111/j.1365-2249.1995.tb06643.x

Neutrophil and recombinant myeloperoxidase as antigens in ANCA positive systemic vasculitis.

A K Short 1, C M Lockwood 1, A Bollen 1, N Moguilevsky 1
PMCID: PMC1553337  PMID: 7554375

Abstract

Myeloperoxidase (MPO) is one of the major autoantigens recognized by anti-neutrophil cytoplasm antibodies. The association of this antigen with specific disease entities requires that there is a source of pure antigen present in large quantities. Further delineation of the molecular mechanisms involved in the antigen-antibody interaction requires the ability to manipulate the molecule. The expression of recombinant MPO in Chinese hamster ovary cells has produced a source of pure protein, suitable for molecular studies. We have shown that this protein is an antigen recognized by 95% of anti-MPO antibodies from patients with systemic vasculitis. This recombinant molecule will be of use in providing an additional specific solid-phase assay for these antibodies and further forms of this protein which mirror the antigenicity of native MPO more exactly may replace chemically purified antigen. It will also be of great value in studies examining the epitopes recognized by anti-MPO antibodies and in studies of immunoregulation and T cell activation.

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Selected References

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