Abstract
Survivin (Surv) belongs to the inhibitor of apoptosis protein family. Its cardiac-specific deletion results in reduced cardiomyocyte number, increased cardiomyocyte size and ploidy, and development of heart failure. Its impact on cardiac electrophysiology is unknown. In vivo transvenous electrophysiological studies were carried out in adult male mice with a cardiac-specific deletion of survivin (Surv−/−; n = 12) and wild-type controls (Surv+/+; n = 12). Epicardial activation mapping (EAM) was performed in Langendorff-perfused hearts of 16 Surv−/− and 6 Surv+/+ mice. Surface-ECG showed lower heart rates in Surv−/− mice (326 ± 66 bpm vs. 440.6 ± 39 ms; P = 0.0001), accompanied by significantly prolonged P waves (20.3 ± 5.8 vs. 14.6 ± 2.0 ms; P = 0.009), PQ-(47.4 ± 8.6 vs. 41.1 ± 3.7 ms; P = 0.043), QRS- (19.5 ± 4.8 vs. 14.0 ± 1.0 ms; P = 0.002) and QT-intervals (41.6 ± 4.4 vs. 36.2 ± 3.4 ms; P = 0.003). The HV-interval was prolonged in Surv−/− mice (12.1 ± 2.4 vs. 9.3 ± 1.4 ms; P = 0.0045). We found impaired sinus-nodal function (sinus node recovery times: 310.2 ± 76.6 vs. 207.8 ± 68.6 ms; P = 0.003) and AV-nodal conduction (Wenckebach-periodicity: 105.9 ± 15.9 vs. 79.6 ± 8.1 ms; P = 0.0002). EAM showed significant slowing and heterogeneity of conduction in the myocardium of Surv−/− mice. All Surv−/− mice showed spontaneous supraventricular and ventricular ectopic beats (P < 0.0001 vs. wildtype). Quantitative immunofluorescence staining for connexin43 (Cx43) revealed a decrease in both per cardiomyocyte and single gap junction. Surv−/− mice exhibit severe global conduction attenuations in atrial and ventricular myocardium as well as the specific conduction system, accompanied by lower connexin43 levels. Lack of susceptibility to AF and VT suggests that reduced cardiomyocyte number and increased size constitute determinants of electrical stableness in the heart and counteract potentially proarrhythmogenic connexin43 loss in Surv−/−.
Similar content being viewed by others
References
Akar FG, Spragg DD, Tunin RS, Kass DA, Tomaselli GF (2004) Mechanisms underlying conduction slowing and arrhythmogenesis in nonischemic dilated cardiomyopathy. Circ Res 95:717–725. doi:10.1161/01.RES.0000144125.61927.1c
Altieri DC (2004) Molecular circuits of apoptosis regulation and cell division control: the survivin paradigm. J Cell Biochem 92:656–663. doi:10.1002/jcb.20140
Coronel R, Wilms-Schopman FJ, de Groot JR, Janse MJ, van Capelle FJ, de Bakker JM (2000) Laplacian electrograms and the interpretation of complex ventricular activation patterns during ventricular fibrillation. J Cardiovasc Electrophysiol 11:1119–1128
Danik SB, Rosner G, Lader J, Gutstein DE, Fishman GI, Morley GE (2008) Electrical remodeling contributes to complex tachyarrhythmias in connexin43-deficient mouse hearts. Faseb J 22:1204–1212. doi:10.1096/fj.07-8974com
Fan L, Lin C, Zhuo S, Chen L, Liu N, Luo Y, Fang J, Huang Z, Lin Y, Chen J (2009) Transplantation with survivin-engineered mesenchymal stem cells results in better prognosis in a rat model of myocardial infarction. Eur J Heart Fail 11:1023–1030. doi:10.1093/eurjhf/hfp135
Formigli L, Ibba-Manneschi L, Perna AM, Pacini A, Polidori L, Nediani C, Modesti PA, Nosi D, Tani A, Celli A, Neri-Serneri GG, Quercioli F, Zecchi-Orlandini S (2003) Altered Cx43 expression during myocardial adaptation to acute and chronic volume overloading. Histol Histopathol 18:359–369
Kinoshita H, Kuwahara K, Takano M, Arai Y, Kuwabara Y, Yasuno S, Nakagawa Y, Nakanishi M, Harada M, Fujiwara M, Murakami M, Ueshima K, Nakao K (2009) T-type Ca2+ channel blockade prevents sudden death in mice with heart failure. Circulation 120:743–752. doi:10.1161/CIRCULATIONAHA.109.857011
Kreuzberg MM, Schrickel JW, Ghanem A, Kim JS, Degen J, Janssen-Bienhold U, Lewalter T, Tiemann K, Willecke K (2006) Connexin30.2 containing gap junction channels decelerate impulse propagation through the atrioventricular node. Proc Natl Acad Sci USA 103:5959–5964. doi:10.1073/pnas.0508512103
Lammers WJ, Schalij MJ, Kirchhof CJ, Allessie MA (1990) Quantification of spatial inhomogeneity in conduction and initiation of reentrant atrial arrhythmias. Am J Physiol 259:H1254–H1263
Levkau B (2011) Survivin signalling in the heart. J Mol Cell Cardiol 50:6–8. doi:10.1016/j.yjmcc.2010.10.013
Levkau B, Schafers M, Wohlschlaeger J, von Wnuck K, Keul P, Hermann S, Kawaguchi N, Kirchhof P, Fabritz L, Stypmann J, Stegger L, Flogel U, Schrader J, Fischer JW, Hsieh P, Ou YL, Mehrhof F, Tiemann K, Ghanem A, Matus M, Neumann J, Heusch G, Schmid KW, Conway EM, Baba HA (2008) Survivin determines cardiac function by controlling total cardiomyocyte number. Circulation 117:1583–1593. doi:10.1161/CIRCULATIONAHA.107.734160
Marusawa H, Matsuzawa S, Welsh K, Zou H, Armstrong R, Tamm I, Reed JC (2003) HBXIP functions as a cofactor of survivin in apoptosis suppression. EMBO J 22:2729–2740. doi:10.1093/emboj/cdg263
Mitchell GF, Jeron A, Koren G (1998) Measurement of heart rate and Q-T interval in the conscious mouse. Am J Physiol 274:H747–H751
Petrich BG, Eloff BC, Lerner DL, Kovacs A, Saffitz JE, Rosenbaum DS, Wang Y (2004) Targeted activation of c-Jun N-terminal kinase in vivo induces restrictive cardiomyopathy and conduction defects. J Biol Chem 279:15330–15338. doi:10.1074/jbc.M314142200
Roell W, Lewalter T, Sasse P, Tallini YN, Choi BR, Breitbach M, Doran R, Becher UM, Hwang SM, Bostani T, von Maltzahn J, Hofmann A, Reining S, Eiberger B, Gabris B, Pfeifer A, Welz A, Willecke K, Salama G, Schrickel JW, Kotlikoff MI, Fleischmann BK (2007) Engraftment of connexin 43-expressing cells prevents post-infarct arrhythmia. Nature 450:819–824. doi:10.1038/nature06321
Schrickel JW, Bielik H, Yang A, Schimpf R, Shlevkov N, Burkhardt D, Meyer R, Grohe C, Fink K, Tiemann K, Luderitz B, Lewalter T (2002) Induction of atrial fibrillation in mice by rapid transesophageal atrial pacing. Basic Res Cardiol 97:452–460. doi:1007/s003950200052
Schrickel JW, Brixius K, Herr C, Clemen CS, Sasse P, Reetz K, Grohe C, Meyer R, Tiemann K, Schroder R, Bloch W, Nickenig G, Fleischmann BK, Noegel AA, Schwinger RH, Lewalter T (2007) Enhanced heterogeneity of myocardial conduction and severe cardiac electrical instability in annexin A7-deficient mice. Cardiovasc Res 76:257–268. doi:1016/j.cardiores.2007.07.001
Schrickel JW, Kreuzberg MM, Ghanem A, Kim JS, Linhart M, Andrie R, Tiemann K, Nickenig G, Lewalter T, Willecke K (2009) Normal impulse propagation in the atrioventricular conduction system of Cx30.2/Cx40 double deficient mice. J Mol Cell Cardiol 46:644–652. doi:1016/j.yjmcc.2009.02.012
Song Z, Yao X, Wu M (2003) Direct interaction between survivin and Smac/DIABLO is essential for the anti-apoptotic activity of survivin during taxol-induced apoptosis. J Biol Chem 278:23130–23140. doi:0.1074/jbc.M300957200
Spach MS, Heidlage JF, Dolber PC, Barr RC (2001) Changes in anisotropic conduction caused by remodeling cell size and the cellular distribution of gap junctions and Na(+) channels. J Electrocardiol 34(Suppl):69–76
Spach MS, Heidlage JF, Barr RC, Dolber PC (2004) Cell size and communication: role in structural and electrical development and remodeling of the heart. Heart Rhythm 1:500–515. doi:10.1016/j.hrthm.2004.06.010
van Rijen HV, Eckardt D, Degen J, Theis M, Ott T, Willecke K, Jongsma HJ, Opthof T, de Bakker JM (2004) Slow conduction and enhanced anisotropy increase the propensity for ventricular tachyarrhythmias in adult mice with induced deletion of connexin43. Circulation 109:1048–1055. doi:1161/01.CIR.0000117402.70689.75
Vaux DL, Silke J (2005) IAPs: the ubiquitin connection. Cell Death Differ 12:1205–1207. doi:1038/sj.cdd.4401696
Vaux DL, Silke J (2005) IAPs, RINGs and ubiquitylation. Nat Rev Mol Cell Biol 6:287–297. doi:1038/nrm1621
Xing Z, Conway EM, Kang C, Winoto A (2004) Essential role of survivin, an inhibitor of apoptosis protein, in T cell development, maturation, and homeostasis. J Exp Med 199:69–80. doi:10.1084/jem.20031588
Acknowledgments
We thank B. Fleischmann and P. Sasse for methodological support with the epicardial activation maps. Electrophysiological investigations were supported by an internal grant of the university Bonn (BONFOR O-109.0008) to JWS.
Conflict of interest
None of the authors has any disclosures to state regarding the work on this manuscript.
Author information
Authors and Affiliations
Corresponding author
Additional information
M. Boggrefe, Mannheim, Germany served as guest editor for the manuscript and was responsible for all editorial decisions, including the selection of reviewers. The policy applies to all manuscripts with authors from the editor’s institution.
Rights and permissions
About this article
Cite this article
Schrickel, J.W., Lickfett, L., Lewalter, T. et al. Cardiomyocyte-specific deletion of survivin causes global cardiac conduction defects. Basic Res Cardiol 107, 299 (2012). https://doi.org/10.1007/s00395-012-0299-8
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/s00395-012-0299-8