Therapeutic Inhibition of Acid-Sensing Ion Channel 1a Recovers Heart Function After Ischemia-Reperfusion Injury.
Acid Sensing Ion Channels
/ biosynthesis
Animals
Cells, Cultured
Female
Humans
Induced Pluripotent Stem Cells
/ drug effects
Isolated Heart Preparation
/ methods
Male
Mice
Mice, Knockout
Myocardial Ischemia
/ genetics
Myocardial Reperfusion Injury
/ genetics
Myocytes, Cardiac
/ drug effects
Polymorphism, Single Nucleotide
/ physiology
Recovery of Function
/ drug effects
Spider Venoms
/ pharmacology
acid sensing ion channels
acidosis
heart transplantation
ischemia
myocardial infarction
Journal
Circulation
ISSN: 1524-4539
Titre abrégé: Circulation
Pays: United States
ID NLM: 0147763
Informations de publication
Date de publication:
21 09 2021
21 09 2021
Historique:
pubmed:
16
7
2021
medline:
29
12
2021
entrez:
15
7
2021
Statut:
ppublish
Résumé
Ischemia-reperfusion injury (IRI) is one of the major risk factors implicated in morbidity and mortality associated with cardiovascular disease. During cardiac ischemia, the buildup of acidic metabolites results in decreased intracellular and extracellular pH, which can reach as low as 6.0 to 6.5. The resulting tissue acidosis exacerbates ischemic injury and significantly affects cardiac function. We used genetic and pharmacologic methods to investigate the role of acid-sensing ion channel 1a (ASIC1a) in cardiac IRI at the cellular and whole-organ level. Human induced pluripotent stem cell-derived cardiomyocytes as well as ex vivo and in vivo models of IRI were used to test the efficacy of ASIC1a inhibitors as pre- and postconditioning therapeutic agents. Analysis of human complex trait genetics indicates that variants in the Our data provide compelling evidence for a novel pharmacologic strategy involving ASIC1a blockade as a cardioprotective therapy to improve the viability of hearts subjected to IRI.
Sections du résumé
BACKGROUND
Ischemia-reperfusion injury (IRI) is one of the major risk factors implicated in morbidity and mortality associated with cardiovascular disease. During cardiac ischemia, the buildup of acidic metabolites results in decreased intracellular and extracellular pH, which can reach as low as 6.0 to 6.5. The resulting tissue acidosis exacerbates ischemic injury and significantly affects cardiac function.
METHODS
We used genetic and pharmacologic methods to investigate the role of acid-sensing ion channel 1a (ASIC1a) in cardiac IRI at the cellular and whole-organ level. Human induced pluripotent stem cell-derived cardiomyocytes as well as ex vivo and in vivo models of IRI were used to test the efficacy of ASIC1a inhibitors as pre- and postconditioning therapeutic agents.
RESULTS
Analysis of human complex trait genetics indicates that variants in the
CONCLUSIONS
Our data provide compelling evidence for a novel pharmacologic strategy involving ASIC1a blockade as a cardioprotective therapy to improve the viability of hearts subjected to IRI.
Identifiants
pubmed: 34264749
doi: 10.1161/CIRCULATIONAHA.121.054360
doi:
Substances chimiques
ASIC1 protein, human
0
Acid Sensing Ion Channels
0
Spider Venoms
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
947-960Commentaires et corrections
Type : ErratumIn