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Nuclear envelope protein recognized by atypical p-ANCA in patients with inflammatory bowel disease and autoimmune liver diseases
Nuclear envelope protein recognized by atypical p-ANCA in patients with inflammatory bowel disease and autoimmune liver diseases
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机译:炎症性肠病和自身免疫性肝病患者非典型p-ANCA识别的核被膜蛋白
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摘要
The present invention is directed to the molecular characterization of the nuclear antigen recognized by atypical p-antineutrophil cytoplasmic antibodies (p-ANCA) in order to better diagnose patients with inflammatory bowel diseases such as ulcerative colitis (UC), and autoimmune liver diseases such as primary sclerosing cholangitis (PSC) and autoimmune hepatitis (AIH). Molecular characterization of the target antigen comprises preparing cytoplasmic and nuclear extracts of human neutrophils, human HL-60 and murine 32D myeloid cells. Proteins should then be resolved by 1 and 2 dimensional gel electrophoresis and reactive proteins can then be detected by immunoblotting with sera from individuals, making certain to have both normal and disease controls. Atypical p-ANCA should then be affinity purified against the reactive protein and investigated for their immunofluorescence pattern using confocal microscopy. One could then detect the antigen that atypical p-ANCA can recognize and use that antigen to detect the prescence of atypical p-antineutrophil cytoplasmic antibodies so as to diagnose patients with inflammatory bowel diseases such as ulcerative colitis (UC), and autoimmune liver diseases such as sclerosing cholangitis (PSC) and autoimmune hepatitis (AIH).
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