Abstract: A protein used as a biomarker for diagnosing IgA nephropathy and TGBM (thin-glomerular-basement-membrane) using urine through a target proteomics method. A diagnosis biomarker protein and a kit for diagnosing IgA nephropathy and TGBM and predicting progress of the nephropathy in advance using the protein are provided. The degree of the progression 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). The monoclonal antibody is used in early diagnosis and progression detection of IgA nephropathy and development of a novel drug for the purpose of treatment.

Abstract: 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).