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Minerva Medica 2019 June;110(3):224-31

DOI: 10.23736/S0026-4806.19.05842-7

Copyright © 2019 EDIZIONI MINERVA MEDICA

lingua: Inglese

Expression profile of integrin family genes in patients with myocardial infarction and in healthy subjects: an oligonucleotide microarray and QRT-PCR assessment. Preliminary results

Joanna GŁOGOWSKA-LIGUS 1 , Józefa DĄBEK 2

1 Department of Epidemiology, School of Public Health in Bytom, Medical University of Silesia in Katowice, Katowice, Poland; 2 Department of Cardiology, School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland



BACKGROUND: Pathogenesis and clinical course of all known cardiovascular diseases are rooted in endothelial dysfunction. Coronary thrombosis which can aggravate the coronary condition leading to myocardial infarction (MI) is closely linked to cellular adhesion processes involving numerous adhesion molecules. The goal of our study was to find and quantitate the expression of integrin genes that differentiate between MI patients and healthy subjects.
METHODS: The study included 171 individuals, among whom 8 were chosen to provide study material for the oligonucleotide microarray investigation (4 MI patients and 4 healthy subjects). The investigated material consisted of RNA isolated from peripheral blood mononuclear cells.
RESULTS: Analysis of gene expression data from eight HG-U133A microarrays allowed identification of three genes differentiating the examined groups. The differentiating genes were found using the Bland-Altman method. Two of them showed increased expression (beta 2 integrin and beta 7 integrin genes), whereas expression level of the third (beta 3 integrin gene) was decreased.
CONCLUSIONS: The differences in integrin gene expression levels that were observed in MI patients, as compared to healthy individuals, might be responsible for endothelial dysfunction as well as rise in adhesion and aggregation processes in this group of patients and might lead to coronary vessel occlusion by thrombi and myocardial infarction.


KEY WORDS: Coronary thrombosis - Myocardial infarction - Oligonucleotide array sequence analysis

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