ArticleJournal of the American Heart Association2014
Endoplasmic reticulum resident protein 44 (ERp44) deficiency in mice and zebrafish leads to cardiac developmental and functional defects.
Article in Journal of the American Heart Association, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 30 citations in OpenAlex.
- Impaired collagen deposition in the absence of ERp44.iScience · 2026Article
- Defects inFrontiers in genetics · 2026Article
- An Overview of Adverse Outcome Pathway Links between PMEnvironment & health (Washington, D.C.) · 2024Review
- Loss of Sec-1 Family Domain-Containing 1 (Journal of cardiovascular development and disease · 2023Article
- Ero1α-Dependent ERp44 Dissociation From RyR2 Contributes to Cardiac Arrhythmia.Circulation research · 2022Article
- ERp44 is required for endocardial cushion development by regulating VEGFA secretion in myocardium.Cell proliferation · 2022Article
- ER stress and calcium-dependent arrhythmias.Frontiers in physiology · 2022Review
- ERp44/CG9911 promotes fat storage inAging · 2021Article
- IP3R1 regulates CaCell death discovery · 2021Article
- REEP5 depletion causes sarco-endoplasmic reticulum vacuolization and cardiac functional defects.Nature communications · 2020Article
- The Best for the Most Important: Maintaining a Pristine Proteome in Stem and Progenitor Cells.Stem cells international · 2019Review
- Sialic acid catabolism by N-acetylneuraminate pyruvate lyase is essential for muscle function.JCI insight · 2018Article
- New insights into the unfolded protein response in stem cells.Oncotarget · 2016Review
- Resolving Myocardial Activation With Novel Omnipolar Electrograms.Circulation. Arrhythmia and electrophysiology · 2016Article
Corrections and comments
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Authors and funding
14 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundEndoplasmic reticulum (ER) resident protein 44 (ERp44) is a member of the protein disulfide isomerase family, is induced during ER stress, and may be involved in regulating Ca(2+) homeostasis. However, the role of ERp44 in cardiac development and function is unknown. The aim of this study was to investigate the role of ERp44 in cardiac development and function in mice, zebrafish, and embryonic stem cell (ESC)-derived cardiomyocytes to determine the underlying role of ERp44. METHODS AND
resultsWe generated and characterized ERp44(-/-) mice, ERp44 morphant zebrafish embryos, and ERp44(-/-) ESC-derived cardiomyocytes. Deletion of ERp44 in mouse and zebrafish caused significant embryonic lethality, abnormal heart development, altered Ca(2+) dynamics, reactive oxygen species generation, activated ER stress gene profiles, and apoptotic cell death. We also determined the cardiac phenotype in pressure overloaded, aortic-banded ERp44(+/-) mice: enhanced ER stress activation and increased mortality, as well as diastolic cardiac dysfunction with a significantly lower fractional shortening. Confocal and LacZ histochemical staining showed a significant transmural gradient for ERp44 in the adult heart, in which high expression of ERp44 was observed in the outer subepicardial region of the myocardium.
conclusionsERp44 plays a critical role in embryonic heart development and is crucial in regulating cardiac cell Ca(2+) signaling, ER stress, ROS-induced oxidative stress, and activation of the intrinsic mitochondrial apoptosis pathway.
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