ArticleMolecular and cellular biochemistry2015
Intracellular angiotensin (1-7) increases the inward calcium current in cardiomyocytes. On the role of PKA activation.
Article in Molecular and cellular biochemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 17 citations in OpenAlex.
- Modulation of Mitochondrial Dynamics by the Angiotensin System in Dopaminergic Neurons and Microglia.Aging and disease · 2024Article
- Diminazene aceturate mitigates cardiomyopathy by interfering with renin-angiotensin system in a septic rat model.BMC pharmacology & toxicology · 2022Article
- The ACE2/Angiotensin-(1-7)/MAS Axis of the Renin-Angiotensin System: Focus on Angiotensin-(1-7).Physiological reviews · 2018Review
- Cellular basis of angiotensin-(1-7)-induced augmentation of left ventricular functional performance in heart failure.International journal of cardiology · 2017Article
- Gene Therapy With Angiotensin-(1-9) Preserves Left Ventricular Systolic Function After Myocardial Infarction.Journal of the American College of Cardiology · 2016Article
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Funding
Abstract
The influence of intracellular administration of angiotensin (1-7) (Ang 1-7) on the inward calcium current was investigated in myocytes isolated from the left ventricle of Wistar Kyoto rat hearts using the patch-clamp technique. The results indicated: (1) the intracellular administration of Ang (1-7) (100 nM) enhanced the peak inward calcium current (I Ca); (2) the intracellular administration of A779 (100 nM) which a Mas receptor inhibitor, abolished the effect of Ang (1-7) on the calcium current; (3) the activation of PKA and consequent phosphorylation of calcium channels seems to be the mechanism involved in the increment of calcium current induced by the heptapeptide because the intracellular dialysis of the PKA inhibitor suppressed the effect of the heptapeptide; (4) the effect of Ang (1-7) was not related to its secretion into the extracellular space; (5)intracellular dialysis of Ang II (100 nM) has an opposite effect and reduced the peak I Ca; (6) extracellular administration of Ang II (100 nM) to cells previously dialyzed with Ang (1-7) also reduced the peak I Ca previously enhanced by Ang (1-7); and (7) intracellular Ang (1-7) reduced the heart cell volume. Implications for heart contractility were discussed.
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