Peptidomic Analysis of Maternal Serum to Identify Biomarker Candidates for Prenatal Diagnosis of Tetralogy of Fallot.
JOURNAL OF CELLULAR BIOCHEMISTRY(2018)
Abstract
Tetralogy of Fallot (TOF) is the most common form of cyanotic congenital heart disease. To identify endogenous peptides possibly involved in the progression of TOF, we performed comparative peptidomic profiling of maternal serum between normal fetuses and fetuses suffering from TOF. A total of 278 differentially expressed peptides, including 94 over-expressed peptides and 184 under-expressed peptides, originating from 227 protein precursors were identified by liquid chromatography/mass spectrometry (LC/MS) in maternal serum of fetuses with TOF compared to normal controls. Further, ingenuity pathway analysis (IPA) was used to identify putative roles for these peptides in cardiovascular development. Two peptides were derived from functional domains of proteins involved in heart development and associated with TOF; these may represent candidate bioactive peptides involved in TOF. These peptides may be related to the pathologic changes in the heart associated with TOF, and may be useful as novel biomarkers for prenatal diagnosis of TOF. J. Cell. Biochem. 119: 468-477, 2018. (c) 2017 Wiley Periodicals, Inc.
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Key words
TETRALOGY OF FALLOT,MATERNAL SERUM,PEPTIDOMIC ANALYSIS,BIOMARKER
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