Biomarker discovery by plasma proteomics in familial Brugada Syndrome

M. Di Domenico, D. Scumaci, S. Grasso, M. Gaspari, A. Curcio, Antonio Curcio, Antonio Oliva, F. Ausania, Francesco Ausania, C. Di Nunzio, C. Ricciardi, A. C. Santini, F. A. Rizzo, C. Romano Carratelli, M. Lamberti, D. Conti, R. La Montagna, V. Tomei, V. Malafoglia, Vincenzo Lorenzo PascaliP. Ricci, C. Indolfi, F. Costanzo, Giovanni Cuda

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Brugada Syndrome (BS) is a polygenic inherited cardiac disease characterized by life-threatening arrhythmias and high incidence of sudden death. In this study, two-dimensional gel electrophoresis (2D-PAGE) coupled to mass spectrometry (LC-MS/MS) was used to investigate specific changes in the plasma proteome of BS patients and family members sharing the same gene mutation (SCN5AQ1118X), with the aim to identify novel disease biomarkers. Our data demonstrate that the levels of several proteins were significantly altered in BS patients compared with controls. In particular, apolipoprotein E, prothrombin, vitronectin, complement-factor H, vitamin-D-binding protein, voltage-dependent anion-selective channel protein 3 and clusterin were considerably increased in plasma sample of BS patients, whereas alpha-1-antitrypsin, fibrinogen and angiotensinogen were considerably decreased; moreover, post-translational modifications of antithrombin-III were detected in all affected individuals. On the light of these results, we hypothesize that these proteins might be considered as potential markers for the identification of disease status in BS.
Original languageEnglish
Pages (from-to)564-571
Number of pages8
JournalFrontiers in Bioscience
Volume18
DOIs
Publication statusPublished - 2013

Keywords

  • BRUGADA SYNDROME
  • SUDDEN CARDIAC DEATH

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