Transcriptional profiling of left ventricle and peripheral blood mononuclear cells in a rat model of postinfarction heart failure
PBN-AR
Instytucja
Instytut Biochemii i Biofizyki Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
BMC Medical Genomics
ISSN
1755-8794
EISSN
Wydawca
BIOMED CENTRAL LTD
DOI
Rok publikacji
2013
Numer zeszytu
Strony od-do
49
Numer tomu
6
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Pozostali autorzy
+ 2
Słowa kluczowe
EN
Left ventricular remodelling,
Heart failure,
Myocardial infarction,
Extracellular matrix,
Gene expression profiling,
Microarrays,
Ceruloplasmin,
Tetraspanin 12
Open access
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Inna
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Język
EN
Treść
BACKGROUND: Myocardial infarction (MI) often results in left ventricular (LV) remodeling followed by heart failure (HF). It is of great clinical importance to understand the molecular mechanisms that trigger transition from compensated LV injury to HF and to identify relevant diagnostic biomarkers. The aim of this study was to investigate gene expression in the LV and to evaluate their reflection in peripheral blood mononuclear cells (PBMCs). METHODS: MI was induced in rats by ligation of the proximal left coronary artery. Rats with small, moderate, and large MI size were included into the experiment two months after the operation. The development of heart failure was estimated by echocardiography and catheterization. Microarrays were used to compare the LV and PBMCs transcriptomes of control and experimental animals. RESULTS: Only rats with a large MI developed extensive LV remodeling and heart failure. 840 transcripts were altered in LV of failing hearts, and especially numerous were those associated with the extracellular matrix. In contrast, no significant gene expression changes were seen in LVs of rats with moderate or small MI that had compensated LV injury. We showed that ceruloplasmin was similarly overexpressed in the heart and blood in response to HF, whereas downregulation of tetraspanin 12 was significant only in the PBMCs. CONCLUSION: A large size of infarcted area is critical for progression of LV remodeling and HF development, associated with altered gene expression in the heart. Ceruloplasmin and tetraspanin 12 are potential convenient markers in readily obtainable PBMCs.
Cechy publikacji
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System-identifier
PX-57bc3440c2dcd71a5c33c6e6
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