Disclosed is the development of a
protein used as a biomarker for diagnosing IgA
nephropathy and TGBM (thin-glomerular-
basement-membrane) using
urine through a target
proteomics method. The disclosed development relates to a diagnosis biomarker
protein and a kit for diagnosing IgA
nephropathy and TGBM and predicting progress of the
nephropathy in advance using the
protein. The
protein level is increased or decreased in
urine from a patient with IgA nephropathy or TGBM nephropathy compared to
urine from a normal patient. According to the disclosed development, the degree of the
disease can be grasped by detecting IgA nephropathy and TGBM, enabling early diagnosis and confirming progress from the patient's urine. In addition, a
monoclonal antibody produced based on the diagnosis biomarker protein can be used for an
immunoassay kit (ELISA,
antibody coated tube test, lateral-flow test, potable
biosensor). As well, the
monoclonal antibody is used in early diagnosis and progress detection of IgA nephropathy and development of a novel
drug for the purpose of treatment.