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ANCA-P (MPO) ELISA Kit

  • Created on the 26 May, 2017.

BACKGROUND

Perinuclear anti-neutrophil cytoplasmic antibodies (p-ANCA, MPO-ANCA, anti-MPO, ANCA-P) display a perinuclear staining pattern and are known to be common targets for myeloperoxidase (MPO). MPO is a neutrophil granule protein which has a primary function during normal metabolic processes in order to generate oxygen radicals. However, the proportion of pANCA sera with anti-MPO antibodies has only been reported in as low as 12% of patients with vasculitis condition. p-ANCA is associated with a number of medical conditions such as rheumatoid arthritis, primary sclerosing cholangitis, ulcerative colitis, eosinophilic granulomatosis with polyangiitis, microscopic polyangiitis, crescentic glomerulonephritis and focal necrotising. The analysis of anti-PR3 and anti-MPO levels has been found to correlate with the clinical status and both of these are at elevated levels in active disease and the antibody titres start to decrease during therapy, eventually becoming undetectable after remission. The classical methods for the measuring ANCA are ELISA and immunofluorescence tests and using these methods has identified two main patterns a cytoplasmic (cANCA) and a perinuclear (pANCA) type.

INTENDED USE

Human ANCA-P ELISA kit is a procedure designed for detecting IgG autoantibodies to myeloperoxidase (MPO) using human plasma and serum. This assay has a minimum analytical sensitivity limit of 0.5 U/ml.

SENSITIVITY

The minimum detection sensitivity level of human IgG autoantibodies to myeloperoxidase (anti-MPO) using this human ANCA-P ELISA kit was 0.5 U/ml. The dynamic assay range for this kit is 5 – 100.0 U/ml.

REFERENCES

  1. Comparison of a novel chemiluminescence enzyme immunoassay (CLEIA) with enzyme-linked immunosorbent assay (ELISA) for the determination of MPO-ANCA in patients with ANCA-associated vasculitis. Mod Rheumatol. (2015) 25 (2): 230-4. Hirose O., et al.
  2. Pulmonary hyalinizing granuloma associated with Sjögren syndrome and ANCA MPO vasculitis. Joint Bone Spine. (2015) 82 (1): 71-2. Rodríguez-Muguruza S., et al.
  3. Myeloperoxidase (MPO)-specific CD4+ T cells contribute to MPO-anti-neutrophil cytoplasmic antibody (ANCA) associated glomerulonephritis. Cell Immunol. (2013) 282 (1): 21-7. Gan P.Y., et al.
  4. Getting rid of MPO-ANCA: a matter of disease subtype. Rheumatology (Oxford). (2013) 52 (4): 752-4. Bremer J.P., et al.
  5. What is myeloperoxidase doing in ANCA-associated glomerulonephritis? Kidney Int. (2015) 88 (5): 938-40. Couser W.G. and Johnson R.J.

ADDITIONAL INFORMATION

  • Full Name: ANCA-P (MPO) ELISA Kit
  • Reactivity: Human
  • Sample Type: Plasma, Serum
  • Sensitivity: 0.5 U/ml

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