Attenuation of ER stress prevents post-infarction-induced cardiac rupture and remodeling by modulating both cardiac apoptosis and fibrosis

T Luo, JK Kim, B Chen, A Abdel-Latif, M Kitakaze… - Chemico-biological …, 2015 - Elsevier
Endoplasmic reticulum (ER) stress is implicated in the pathophysiology of various
cardiovascular diseases, but the role of ER stress in cardiac rupture and/or remodeling after
myocardial infarction (MI) is still unclear. Here we investigated whether ER stress plays a
major role for these processes in mice. We ligated the left coronary artery (LCA) without
reperfusion in mice and administered either NaCl or 4-phenylbutyric acid (4-PBA, 20
mg/kg/d) intraperitoneally for 4 weeks. Cardiac rupture rates during the first week of MI were …