title: SERCA pump level is a critical determinant of Ca(2+)homeostasis and cardiac contractility.
abstract: The control of intracellular calcium is central to regulation of cardiac contractility. A defect in SR Ca(2+)transport and SR Ca(2+)ATPase pump activity and expression level has been implicated as a major player in cardiac dysfunction. However, a precise cause-effect relationship between alterations in SERCA pump level and cardiac contractility could not be established from these studies. Progress in transgenic mouse technology and adenoviral gene transfer has provided new tools to investigate the role of SERCA pump level in the heart. This review focuses on how alterations in SERCA level affect Ca(2+)homeostasis and cardiac contractility. It discusses the consequences of altered SERCA pump levels for the expression and activity of other Ca(2+)handling proteins. Furthermore, the use of SERCA pump as a therapeutic target for gene therapy of heart failure is evaluated.
authors.affiliation: Division of Cardiology, University of Cincinnati, College of Medicine, 231 Albert Sabin Way, Cincinnati, Ohio 45267-0542, USA. muthu.periasamy@uc.edu
authors.forename: M
authors.initials: M
authors.lastname: Periasamy
authors.forename: S
authors.initials: S
authors.lastname: Huke
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism*; D000252:Calcium-Transporting ATPases / Q000235:genetics / Q000378:metabolism* / Q000627:therapeutic use; D015870:Gene Expression; D006706:Homeostasis; D006801:Humans; D009200:Myocardial Contraction / Q000502:physiology*; D053498:Sarcoplasmic Reticulum Calcium-Transporting ATPases
chemical_list: D053498:Sarcoplasmic Reticulum Calcium-Transporting ATPases; D000252:Calcium-Transporting ATPases; D002118:Calcium