| First Author | Eberhardt DR | Year | 2022 |
| Journal | J Mol Cell Cardiol | Volume | 167 |
| Pages | 1-14 | PubMed ID | 35304170 |
| Mgi Jnum | J:330562 | Mgi Id | MGI:7261095 |
| Doi | 10.1016/j.yjmcc.2022.03.002 | Citation | Eberhardt DR, et al. (2022) EFHD1 ablation inhibits cardiac mitoflash activation and protects cardiomyocytes from ischemia. J Mol Cell Cardiol 167:1-14 |
| abstractText | Altered levels of intracellular calcium (Ca(2+)) are a highly prevalent feature in different forms of cardiac injury, producing changes in contractility, arrhythmias, and mitochondrial dysfunction. In cardiac ischemia-reperfusion injury, mitochondrial Ca(2+) overload leads to pathological production of reactive oxygen species (ROS), activates the permeability transition, and cardiomyocyte death. Here we investigated the cardiac phenotype caused by deletion of EF-hand domain-containing protein D1 (Efhd1(-/-)), a Ca(2+)-binding mitochondrial protein whose function is poorly understood. Efhd1(-/-) mice are viable and have no adverse cardiac phenotypes. They feature reductions in basal ROS levels and mitoflash events, both important precursors for mitochondrial injury, though cardiac mitochondria have normal susceptibility to Ca(2+) overload. Notably, we also find that Efhd1(-/-) mice and their cardiomyocytes are resistant to hypoxic injury. |
