Abstract
Sustained cardiac pressure overload induces hypertrophy and pathological remodeling, frequently leading to heart failure. Genetically engineered hyperstimulation of guanosine 3′,5′-cyclic monophosphate (cGMP) synthesis counters this response. Here, we show that blocking the intrinsic catabolism of cGMP with an oral phosphodiesterase-5A (PDE5A) inhibitor (sildenafil) suppresses chamber and myocyte hypertrophy, and improves in vivo heart function in mice exposed to chronic pressure overload induced by transverse aortic constriction. Sildenafil also reverses pre-established hypertrophy induced by pressure load while restoring chamber function to normal. cGMP catabolism by PDE5A increases in pressure-loaded hearts, leading to activation of cGMP-dependent protein kinase with inhibition of PDE5A. PDE5A inhibition deactivates multiple hypertrophy signaling pathways triggered by pressure load (the calcineurin/NFAT, phosphoinositide-3 kinase (PI3K)/Akt, and ERK1/2 signaling pathways). But it does not suppress hypertrophy induced by overexpression of calcineurin in vitro or Akt in vivo, suggesting upstream targeting of these pathways. PDE5A inhibition may provide a new treatment strategy for cardiac hypertrophy and remodeling.
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References
Frey, N. & Olson, E.N. Cardiac hypertrophy: the good, the bad, and the ugly. Annu. Rev. Physiol. 65, 45–79 (2003).
Frey, N., Katus, H.A., Olson, E.N. & Hill, J.A. Hypertrophy of the heart: a new therapeutic target? Circulation 109, 1580–1589 (2004).
Bueno, O.F. et al. Impaired cardiac hypertrophic response in calcineurin A β-deficient mice. Proc. Natl. Acad. Sci. USA 99, 4586–4591 (2002).
Matsui, T., Nagoshi, T. & Rosenzweig, A. Akt and PI 3-kinase signaling in cardiomyocyte hypertrophy and survival. Cell Cycle 2, 220–223 (2003).
Antos, C.L. et al. Activated glycogen synthase-3 β suppresses cardiac hypertrophy in vivo. Proc. Natl. Acad. Sci. USA 99, 907–912 (2002).
Kishimoto, I., Rossi, K. & Garbers, D.L. A genetic model provides evidence that the receptor for atrial natriuretic peptide (guanylyl cyclase-A) inhibits cardiac ventricular myocyte hypertrophy. Proc. Natl. Acad. Sci. USA 98, 2703–2706 (2001).
Zahabi, A., Picard, S., Fortin, N., Reudelhuber, T.L. & Deschepper, C.F. Expression of constitutively active guanylate cyclase in cardiomyocytes inhibits the hypertrophic effects of isoproterenol and aortic constriction on mouse hearts. J. Biol. Chem. 278, 47694–47699 (2003).
Fiedler, B. et al. Inhibition of calcineurin-NFAT hypertrophy signaling by cGMP-dependent protein kinase type I in cardiac myocytes. Proc. Natl. Acad. Sci. USA 99, 11363–11368 (2002).
Wollert, K.C. et al. Gene transfer of cGMP-dependent protein kinase I enhances the antihypertrophic effects of nitric oxide in cardiomyocytes. Hypertension 39, 87–92 (2002).
Knowles, J.W. et al. Pressure-independent enhancement of cardiac hypertrophy in natriuretic peptide receptor A-deficient mice. J. Clin. Invest. 107, 975–984 (2001).
Rybalkin, S.D., Yan, C., Bornfeldt, K.E. & Beavo, J.A. Cyclic GMP phosphodiesterases and regulation of smooth muscle function. Circ. Res. 93, 280–291 (2003).
Francis, S.H., Turko, I.V. & Corbin, J.D. Cyclic nucleotide phosphodiesterases: relating structure and function. Prog. Nucleic Acid Res. Mol. Biol. 65, 1–52 (2001).
Reffelmann, T. & Kloner, R.A. Therapeutic potential of phosphodiesterase 5 inhibition for cardiovascular disease. Circulation 108, 239–244 (2003).
Goldstein, I. et al. Oral sildenafil in the treatment of erectile dysfunction. Sildenafil Study Group. N. Engl. J. Med. 338, 1397–1404 (1998).
Sastry, B.K., Narasimhan, C., Reddy, N.K. & Raju, B.S. Clinical efficacy of sildenafil in primary pulmonary hypertension: a randomized, placebo-controlled, double-blind, crossover study. J. Am. Coll. Cardiol. 43, 1149–1153 (2004).
Senzaki, H. et al. Cardiac phosphodiesterase 5 (cGMP-specific) modulates β-adrenergic signaling in vivo and is down-regulated in heart failure. FASEB J. 15, 1718–1726 (2001).
Takimoto, E. et al. Cyclic GMP catabolism by PDE5A regulates cardiac adrenergic stimulation by NOS3-dependent mechanism. Circ. Res. 96, 100–109 (2005).
Corbin, J. et al. Sildenafil citrate does not affect cardiac contractility in human or dog heart. Curr. Med. Res. Opin. 19, 747–752 (2003).
Molkentin, J.D. et al. A calcineurin-dependent transcriptional pathway for cardiac hypertrophy. Cell 93, 215–228 (1998).
Semeniuk, L.M. et al. Time-dependent systolic and diastolic function in mice overexpressing calcineurin. Am. J. Physiol. Heart Circ. Physiol. 284, H425–H430 (2003).
Bueno, O.F. & Molkentin, J.D. Involvement of extracellular signal-regulated kinases 1/2 in cardiac hypertrophy and cell death. Circ. Res. 91, 776–781 (2002).
Minamino, T. et al. MEKK1 is essential for cardiac hypertrophy and dysfunction induced by Gq. Proc. Natl. Acad. Sci. USA 99, 3866–3871 (2002).
Zou, Y. et al. Isoproterenol activates extracellular signal-regulated protein kinases in cardiomyocytes through calcineurin. Circulation 104, 102–108 (2001).
Bueno, O.F. et al. The MEK1-ERK1/2 signaling pathway promotes compensated cardiac hypertrophy in transgenic mice. EMBO J. 19, 6341–6350 (2000).
Condorelli, G. et al. Akt induces enhanced myocardial contractility and cell size in vivo in transgenic mice. Proc. Natl. Acad. Sci. USA 99, 12333–12338 (2002).
Matsui, T. et al. Phenotypic spectrum caused by transgenic overexpression of activated Akt in the heart. J. Biol. Chem. 277, 22896–22901 (2002).
Oudit, G.Y. et al. The role of phosphoinositide-3 kinase and PTEN in cardiovascular physiology and disease. J. Mol. Cell Cardiol. 37, 449–471 (2004).
Crackower, M.A. et al. Regulation of myocardial contractility and cell size by distinct PI3K-PTEN signaling pathways. Cell 110, 737–749 (2002).
Patrucco, E. et al. PI3Kγ modulates the cardiac response to chronic pressure overload by distinct kinase-dependent and -independent effects. Cell 118, 375–387 (2004).
Hardt, S.E. & Sadoshima, J. Glycogen synthase kinase-3β: a novel regulator of cardiac hypertrophy and development. Circ. Res. 90, 1055–1063 (2002).
Juhaszova, M. et al. Glycogen synthase kinase-3β mediates convergence of protection signaling to inhibit the mitochondrial permeability transition pore. J. Clin. Invest. 113, 1535–1549 (2004).
Tanji, C. et al. A-kinase anchoring protein AKAP220 binds to glycogen synthase kinase-3β (GSK-3β) and mediates protein kinase A-dependent inhibition of GSK-3β. J. Biol. Chem. 277, 36955–36961 (2002).
Shin, S.Y., Yoon, S.C., Kim, Y.H., Kim, Y.S. & Lee, Y.H. Phosphorylation of glycogen synthase kinase-3β at serine-9 by phospholipase Cγ1 through protein kinase C in rat 3Y1 fibroblasts. Exp. Mol. Med. 34, 444–450 (2002).
Kim, D. et al. Upregulation of phosphodiesterase 1A1 expression is associated with the development of nitrate tolerance. Circulation 104, 2338–2343 (2001).
Ni, X.P., Safai, M., Rishi, R., Baylis, C. & Humphreys, M.H. Increased activity of cGMP-specific phosphodiesterase (PDE5) contributes to resistance to atrial natriuretic peptide natriuresis in the pregnant rat. J. Am. Soc. Nephrol. 15, 1254–1260 (2004).
Rybalkin, S.D., Rybalkina, I.G., Shimizu-Albergine, M., Tang, X.B. & Beavo, J.A. PDE5 is converted to an activated state upon cGMP binding to the GAF A domain. EMBO J. 22, 469–478 (2003).
Francis, S.H. et al. Phosphorylation of isolated human phosphodiesterase-5 regulatory domain induces an apparent conformational change and increases cGMP binding affinity. J. Biol. Chem. 277, 47581–47587 (2002).
Massion, P.B., Feron, O., Dessy, C. & Balligand, J.L. Nitric oxide and cardiac function: ten years after, and continuing. Circ. Res. 93, 388–398 (2003).
Champion, H.C. et al. Modulation of in vivo cardiac function by myocyte-specific nitric oxide synthase-3. Circ. Res. 94, 657–663 (2004).
Holtwick, R. et al. Pressure-independent cardiac hypertrophy in mice with cardiomyocyte-restricted inactivation of the atrial natriuretic peptide receptor guanylyl cyclase-A. J. Clin. Invest. 111, 1399–1407 (2003).
Oliver, P.M. et al. Hypertension, cardiac hypertrophy, and sudden death in mice lacking natriuretic peptide receptor A. Proc. Natl. Acad. Sci. USA 94, 14730–14735 (1997).
Kotera, J., Grimes, K.A., Corbin, J.D. & Francis, S.H. cGMP-dependent protein kinase protects cGMP from hydrolysis by phosphodiesterase-5. Biochem. J. 372, 419–426 (2003).
Pilz, R.B. & Casteel, D.E. Regulation of gene expression by cyclic GMP. Circ. Res. 93, 1034–1046 (2003).
De Windt, L.J., Lim, H.W., Haq, S., Force, T. & Molkentin, J.D. Calcineurin promotes protein kinase C and c-Jun NH2-terminal kinase activation in the heart. Cross-talk between cardiac hypertrophic signaling pathways. J. Biol. Chem. 275, 13571–13579 (2000).
De Windt, L.J. et al. Calcineurin-mediated hypertrophy protects cardiomyocytes from apoptosis in vitro and in vivo: an apoptosis-independent model of dilated heart failure. Circ. Res. 86, 255–263 (2000).
Esposito, G. et al. Genetic alterations that inhibit in vivo pressure-overload hypertrophy prevent cardiac dysfunction despite increased wall stress. Circulation 105, 85–92 (2002).
Wilkins, B.J. et al. Calcineurin/NFAT coupling participates in pathological, but not physiological, cardiac hypertrophy. Circ. Res. 94, 110–118 (2004).
Michael, A. et al. Glycogen synthase kinase-3β regulates growth, calcium homeostasis, and diastolic function in the heart. J. Biol. Chem. 279, 21383–21393 (2004).
Walker, D.K. et al. Pharmacokinetics and metabolism of sildenafil in mouse, rat, rabbit, dog and man. Xenobiotica 29, 297–310 (1999).
Akao, M., Ohler, A., O'Rourke, B. & Marban, E. Mitochondrial ATP-sensitive potassium channels inhibit apoptosis induced by oxidative stress in cardiac cells. Circ. Res. 88, 1267–1275 (2001).
Acknowledgements
We thank A. Rosenzweig for Akt transgenic mice; J. Molkentin for the calcineurin adenoviral vector and F. Baber for the NFAT-reporter adenoviral vectors; and G. Dorn II for the oligonucleotide probes. This study was supported in part by National Institute of Health Grants PO1-HL59408, HL-47511 and AG18324, the Peter Belfer Laboratory for Heart Failure Research. (D.A.K.); a Uehara Memorial Foundation Grant; an American Heart Association (Mid-Atlantic Affiliate) Fellowship Grant (E.T.); a Shih-Chun Wang Young Investigator Award; a Giles F. Filley Award of the American Physiological Society; and the Bernard Family Foundation (H.C.C.).
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Supplementary information
Supplementary Fig. 1
Free plasma concentration dose response curve to oral sildenafil in mice. (PDF 67 kb)
Supplementary Fig. 2
Inhibition of PDE5A by EMD360527 prevents load-induced cardiac hypertrophy, improves cardiac function, and reverses fetal gene expression changes. (PDF 153 kb)
Supplementary Fig. 3
Adenoviral transfection efficiency in neonatal myocytes. (PDF 334 kb)
Supplementary Fig. 4
NFAT activation assessed in neonatal myocytes transfected with an adenovirus coupling the NFAT promoter coupled to luciferase. (PDF 63 kb)
Supplementary Table 1
Effect of sildenafil treatment on serial echocardiographic measurements of left ventricular structure and function in conscious mice. (PDF 85 kb)
Supplementary Table 2
Effect of sildenafil treatment with and without TAC on in vivo cardiac hemodynamics obtained by pressure-volume analysis. (PDF 88 kb)
Supplementary Table 3
Hemodynamic analysis of non-transgenic controls (NTG) and transgenics with cardiac-targeted Akt overexpression (AktTG). (PDF 14 kb)
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Takimoto, E., Champion, H., Li, M. et al. Chronic inhibition of cyclic GMP phosphodiesterase 5A prevents and reverses cardiac hypertrophy. Nat Med 11, 214–222 (2005). https://doi.org/10.1038/nm1175
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DOI: https://doi.org/10.1038/nm1175