Abstract
Adiponectin is a polypeptide known to inhibit cardiac fibrosis via the activation of adenosine monophosphate-activated protein kinase (AMPK). Statins can also activate AMPK, resulting in the secretion of adiponectin. We determined whether atorvastatin inhibits angiotensin II-induced cardiac fibrosis (AICF) in the presence or absence of adiponectin. Adiponectin knockout (APN-KO, n = 44) and wild type (WT, n = 44) mice were received subcutaneous angiotensin II (1.5 mg/kg/day), and atorvastatin (10 mg/kg/day) was administered orally for 15 days. The mRNA expression levels of collagen type I and III, as well as AMPK phosphorylation levels in cardiac tissue were then measured. In the APN-KO mice, collagen type I (p < 0.001) and type III (p = 0.001) expression was significantly greater when treated with angiotensin II, while their expression was significantly reduced in the presence of angiotensin II and atorvastatin. Relative AMPK phosphorylation levels in APN-KO mice were also significantly higher in the angiotensin II + atorvastatin group when compared with angiotensin II group alone. We conclude that atorvastatin attenuates AICF independently from adiponectin by activating AMPK. These data suggest potential cardioprotection beyond lipid modulation potentially supporting statin pleiotropic hypothesis.
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Change history
13 October 2017
In the original published article, Victor Serebruany was designated as the corresponding author in error. The corresponding author is Jong Sung Park. Dr. Park can be reached by email at thinkmed@dau.ac.kr.
Abbreviations
- AMPK:
-
Adenosine monophosphate-activated protein kinase
- ATP:
-
Adenosine triphosphate
- APN-KO:
-
Adiponectin knockout
- AICF:
-
Angiotensin II-induced cardiac fibrosis
- BW:
-
Body weight
- ERK:
-
Extracellular signal-regulated kinase
- HW:
-
Heart weight
- TGF:
-
Transforming growth factor
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Acknowledgements
The authors declare no conflicts of interest. Part of this work was supported by the “Brain Pool” program funded by the Korea Ministry of Science and Technology to Dr. Serebruany.
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An erratum to this article is available at https://doi.org/10.1007/s11745-017-4296-4.
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Choi, S.Y., Park, J.S., Roh, M.S. et al. Inhibition of Angiotensin II-Induced Cardiac Fibrosis by Atorvastatin in Adiponectin Knockout Mice. Lipids 52, 415–422 (2017). https://doi.org/10.1007/s11745-017-4246-1
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DOI: https://doi.org/10.1007/s11745-017-4246-1