Pavo, N;
Lukovic, D;
Zlabinger, K;
Lorant, D;
Goliasch, G;
Winkler, J;
Pils, D;
... Gyöngyösi, M; + view all
(2017)
Intrinsic remote conditioning of the myocardium as a comprehensive cardiac response to ischemia and reperfusion.
Oncotarget
, 8
pp. 67227-67240.
10.18632/oncotarget.18438.
Preview |
Text
Hausenloy_2017 Oncotarget NOGA RIC.pdf - Accepted Version Download (232kB) | Preview |
Abstract
We have previously shown that distal anterior wall ischemia/reperfusion induces gene expression changes in the proximal anterior myocardial area, involving genes responsible for cardiac remodeling. Here we investigated the molecular signals of the ischemia non-affected remote lateral and posterior regions and present gene expression profiles of the entire left ventricle by using our novel and straightforward method of 2D and 3D image reconstruction. Five or 24h after repetitive 10min ischemia/reperfusion without subsequent infarction, pig hearts were explanted and myocardial samples from 52 equally distributed locations of the left ventricle were collected. Expressional changes of seven genes of interest (HIF-1α; caspase-3, transcription factor GATA4; myocyte enhancer factor 2C /MEF2c/; hexokinase 2 /HK2/; clusterin /CLU/ and excision repair cross-complementation group 4 /ERCC4/) were measured by qPCR. 2D and 3D gene expression maps were constructed by projecting the fold changes on the NOGA anatomical mapping coordinates. Caspase-3, GATA4, HK2, CLU, and ERCC4 were up-regulated region-specifically in the ischemic zone at 5 h post ischemia/reperfusion injury. Overexpression of GATA4, clusterin and ERCC4 persisted after 24 h. HK2 showed strong up-regulation in the ischemic zone and down-regulation in remote areas at 5 h, and was severely reduced in all heart regions at 24 h. These results indicate a quick onset of regulation of apoptosis-related genes, which is partially reversed in the late phase of ischemia/reperfusion cardioprotection, and highlight variations between ischemic and unaffected myocardium over time. The NOGA 2D and 3D construction system is an attractive method to visualize expressional variations in the myocardium.
| Type: | Article |
|---|---|
| Title: | Intrinsic remote conditioning of the myocardium as a comprehensive cardiac response to ischemia and reperfusion |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.18632/oncotarget.18438 |
| Publisher version: | http://doi.org/10.18632/oncotarget.18438 |
| Language: | English |
| Additional information: | Copyright: Pavo et al. TThis is an open-access article distributed under the terms of the Creative Commons Attribution License 3.0 (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| Keywords: | LV remodelling, NOGA mapping, cardioprotection, gene expression, ischemia/reperfusion |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science > Pre-clinical and Fundamental Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1562263 |
Archive Staff Only
 |
View Item |
