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Serum Proteomic Profiles in Inflammatory and Non-Inflammatory Cardiomyopathies: A Novel Approach for Diagnostic Biomarker Discovery

by Onuma, Oyere Kalu

Abstract (Summary)
The aim of this project is to develop a noninvasive serum test that predicts histologic forms of myocarditis (inflammatory) and dilated (non-inflammatory) cardiomyopathy using proteomic techniques to analyze serum proteins. Idiopathic dilated cardiomyopathy (DCM) and myocarditis (myocardial inflammation) represent a spectrum of heart muscle disease of various etiologies that usually present with progressive heart failure. Together, they constitute the leading cause of heart transplantation in the United States. Currently, the gold standard of diagnosis of myocarditis is by endomyocardial biopsy (EMB) and histopathological classification according to the Dallas Criteria ; however this diagnostic technique is severely limited by its invasiveness, a lack of sensitivity and an attendant sampling error, yielding diagnostic information in only 10-20% of the cases . As such, the development of a non-invasive highly specific test for myocarditis is of great value and importance particularly in the diagnosis of giant cell myocarditis, a rare but very fulminant form of autoimmune myocarditis where timely institution of appropriate immunosuppressive therapy significantly increases transplant-free survival.

We proposed, using an observational case-control study, to undertake a proteomic analysis to compare serum proteomic profiles - determined by mass spectroscopy and isotope tagging- with histologic findings on endomyocardial biopsy. Our hypothesis is that different forms of myocarditis and dilated cardiomyopathy have distinct serum protein profiles and that these unique profiles which correlate with specific histologic types, will allow for noninvasive diagnosis of major forms of myocarditis and DCM.

Bibliographical Information:

Advisor:Forrester Lee

School:Yale University

School Location:USA - Connecticut

Source Type:Master's Thesis

Keywords:myocarditis cardiomyopathy dilated diagnosis humans proteomics cardiology biological markers non invasive cardiomyopathies

ISBN:

Date of Publication:04/09/2008

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