ArticleJournal of the American Heart Association2021
Enhanced Heart Failure in Redox-Dead Cys17Ser PKARIα Knock-In Mice.
Article in Journal of the American Heart Association, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 3 citations in OpenAlex.
- A redox sensor in protein kinase A regulatory subunit Iα regulates vasodilation and protects against hypertension.Redox biology · 2026Article
- Persistently increased CaMKIIδ autophosphorylation mediates pathologic SR Ca loss in a murine model of Doxorubicin-induced cardiomyopathy.Journal of molecular and cellular cardiology plus · 2026Article
- The inotropic and arrhythmogenic effects of acutely increased late IFrontiers in cardiovascular medicine · 2024Article
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Authors and funding
17 authors at 6 institutions in 3 countries.
Funding
Abstract
Background PKARIα (protein kinase A type I-α regulatory subunit) is redox-active independent of its physiologic agonist cAMP. However, it is unknown whether this alternative mechanism of PKARIα activation may be of relevance to cardiac excitation-contraction coupling. Methods and Results We used a redox-dead transgenic mouse model with homozygous knock-in replacement of redox-sensitive cysteine 17 with serine within the regulatory subunits of PKARIα (KI). Reactive oxygen species were acutely evoked by exposure of isolated cardiac myocytes to AngII (angiotensin II, 1 µmol/L). The long-term relevance of oxidized PKARIα was investigated in KI mice and their wild-type (WT) littermates following transverse aortic constriction (TAC). AngII increased reactive oxygen species in both groups but with RIα dimer formation in WT only. AngII induced translocation of PKARI to the cell membrane and resulted in protein kinase A-dependent stimulation of
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