Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2011-6-7
pubmed:abstractText
To identify biomarker candidates associated with early IgA nephropathy (IgAN) and thin basement membrane nephropathy (TBMN), the most common causes presenting isolated hematuria in childhood, a proteomic approach of urinary exosomes from early IgAN and TBMN patients was introduced. The proteomic results from the patients were compared with a normal group to understand the pathophysiological processes associated with these diseases at the protein level. The urinary exosomes, which reflect pathophysiological processes, collected from three groups of young adults (early IgAN, TBMN, and normal) were trypsin-digested using a gel-assisted protocol, and quantified by label-free LC-MS/MS, using an MS(E) mode. A total of 1877 urinary exosome proteins, including cytoplasmic, membrane, and vesicle trafficking proteins, were identified. Among the differentially expressed proteins, four proteins (aminopeptidase N, vasorin precursor, ?-1-antitrypsin, and ceruloplasmin) were selected as biomarker candidates to differentiate early IgAN from TBMN. We confirmed the protein levels of the four biomarker candidates by semi-quantitative immunoblot analysis in urinary exosomes independently prepared from other patients, including older adult groups. Further clinical studies are needed to investigate the diagnostic and prognostic value of these urinary markers for early IgAN and TBMN. Taken together, this study showed the possibility of identifying biomarker candidates for human urinary diseases using urinary exosomes and might help to understand the pathophysiology of early IgAN and TBMN at the protein level.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1615-9861
pubmed:author
pubmed:copyrightInfo
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
pubmed:issnType
Electronic
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2459-75
pubmed:meshHeading
pubmed-meshheading:21595033-Adolescent, pubmed-meshheading:21595033-Anti-Glomerular Basement Membrane Disease, pubmed-meshheading:21595033-Basement Membrane, pubmed-meshheading:21595033-Biological Markers, pubmed-meshheading:21595033-Blotting, Western, pubmed-meshheading:21595033-Case-Control Studies, pubmed-meshheading:21595033-Electrophoresis, Gel, Two-Dimensional, pubmed-meshheading:21595033-Exosomes, pubmed-meshheading:21595033-Glomerulonephritis, IGA, pubmed-meshheading:21595033-Hematuria, pubmed-meshheading:21595033-Humans, pubmed-meshheading:21595033-Kidney, pubmed-meshheading:21595033-Mass Spectrometry, pubmed-meshheading:21595033-Prognosis, pubmed-meshheading:21595033-Protein Interaction Mapping, pubmed-meshheading:21595033-Proteins, pubmed-meshheading:21595033-Proteomics, pubmed-meshheading:21595033-Young Adult
pubmed:year
2011
pubmed:articleTitle
Proteomic analysis of urinary exosomes from patients of early IgA nephropathy and thin basement membrane nephropathy.
pubmed:affiliation
Department of Molecular Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't