Mapping of myeloperoxidase epitopes recognized by MPO-ANCA using human-mouse MPO chimers
نویسندگان
چکیده
منابع مشابه
Myeloperoxidase (MPO) gene mutation in hereditary MPO deficiency.
Myeloperoxidase (MPO), present in the azurophilic granules of polymorphonuclear leukocytes, is a myeloid enzyme whose synthesis is restricted to promyelocytes. Complete hereditary MPO deficiency affects 1 in 2,000 to 4,000 individuals; however, the genetic cause of this defect is unclear. We have determined the molecular basis of MPO deficiency in one individual (SQ). Granulocytes of SQ had no ...
متن کاملMyeloperoxidase-antineutrophil Cytoplasmic Antibodies (MPO-ANCA) and Proteinase 3-ANCA without Immunofluorescent ANCA Found by Routine Clinical Testing.
OBJECTIVE Concurrent testing for serum antineutrophil cytoplasmic antibodies (ANCA) by indirect immunofluorescence (IF) and by antiproteinase 3 (PR3)/antimyeloperoxidase (MPO) antibody assays may identify patients with PR3-ANCA or MPO-ANCA despite a negative IF (IF-negative MPO/PR3-positive); however, the significance of this result is not clear. We sought to determine whether IF-negative, MPO/...
متن کاملMPO-ANCA crescentic glomerulonephritis complicated by membranous nephropathy: MPO demonstrated in epimembranous deposits
An elderly woman presented with haematuria and proteinuria accompanied by elevated serum myeloperoxidase (MPO)-specific anti-neutrophil cytoplasmic antibodies (MPO-ANCA). A renal biopsy revealed mild mesangial proliferation with fibrocellular crescent formation and a membranous glomerular lesion. Immunofluorescence microscopy using FITC-labelled rabbit anti-human MPO antibodies revealed granula...
متن کاملA case of myeloperoxidase anti-neutrophil cytoplasmic antibody (MPO-ANCA)-associated glomerulonephritis and concurrent membranous nephropathy
BACKGROUND Myeloperoxidase anti-neutrophil cytoplasmic antibody-associated glomerulonephritis (MPO-ANCA-GN) and concurrent membranous nephropathy (MN) are very rare combination. Their causal relationship has been suggested, but not determined. CASE PRESENTATION A 73-years-old male with 5-year history of proteinuria underwent an operation for his sigmoid colon cancer. Seven months later, he wa...
متن کاملMyeloperoxidase (MPO) -463G->A reduces MPO activity and DNA adduct levels in bronchoalveolar lavages of smokers.
The myeloperoxidase (MPO) -463G-->A genetic polymorphism is associated with a reduced risk for lung cancer, but the underlying mechanism is not yet elucidated. Therefore, the impact of this polymorphism on MPO activity and lipophilic DNA adducts was studied in respectively bronchoalveolar lavage (BAL) fluid and cells, from 106 smoking Caucasian lung patients. MPO activity was determined spectro...
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ژورنال
عنوان ژورنال: Kidney International
سال: 2006
ISSN: 0085-2538
DOI: 10.1038/sj.ki.5000354