| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Integrative Physiology |
From the Departments of Physiology (S.-Y.S., A.E.H., C.J.B., M.C.J., M.O., R.S.R.), Medicine (S.-Y.S., A.E.H., C.J.B., M.O., R.S.R.), Pathology (M.C.F.), and Anesthesia (M.J.); Cardiovascular Research and Mouse Physiology Laboratories (S.-Y.S., A.E.H., C.J.B., M.C.J., M.C.F., M.O., R.S.R.); and Department of Molecular and Medical Pharmacology and Crump Institute for Biological Imaging (T.A.L., D.J.S., S.R.C.), University of California-Los Angeles School of Medicine; Department of Medicine (J.C., K.D.B.), University of California-San Diego School of Medicine; and Mayo Clinic Scottsdale (J.C.L.), Scottsdale, Ariz. Present address for S.R.C. is Department of Biomedical Engineering, University of California-Davis.
Correspondence to Dr Robert S. Ross, Department of Physiology, University of California-Los Angeles School of Medicine, Center for the Health Sciences, Room 53-231, 10833 Le Conte Ave, Los Angeles, CA 90095-1751. E-mail ross{at}mednet.ucla.edu
Integrins link the extracellular matrix to the cellular cytoskeleton and serve important roles in cell growth, differentiation, migration, and survival. Ablation of ß1 integrin in all murine tissues results in peri-implantation embryonic lethality. To investigate the role of ß1 integrin in the myocardium, we used Cre-LoxP technology to inactivate the ß1 integrin gene exclusively in ventricular cardiac myocytes. Animals with homozygous ventricular myocyte ß1 integrin gene excision were born in appropriate numbers and grew into adulthood. These animals had 18% of control levels of ß1D integrin protein in the heart and displayed myocardial fibrosis. High-fidelity micromanometer-tipped catheterization of the intact 5-week-old ß1 integrin knockout mice showed depressed left ventricular basal and dobutamine-stimulated contractility and relaxation (LV dP/dtmax and LV dP/dtmin) as compared with control groups (n=8 to 10 of each, P<0.01). Hemodynamic loading imposed by 7 days of transverse aortic constriction showed that the ß1 integrin knockout mice were intolerant of this stress as they had 53% survival versus 88% in controls (n=15 each). By 6 months of age, mice with depressed ventricular expression of ß1 integrin developed a dilated cardiomyopathy that was not evident in any control animals and had patchy decrease in glucose metabolism as determined by positron emission tomography. Myocyte membrane integrity as determined via Evans blue dye staining was disrupted in the ß1 integrin knockout mice. This model provides strong evidence for the importance of ß1 integrin in cardiac form and function and indicates that integrins can be linked to development of cardiomyopathies.
Key Words: extracellular matrix homologous recombination Cre recombinase heart positron emission tomography
This article has been cited by other articles:
![]() |
P. C. McDonald, A. B. Fielding, and S. Dedhar Integrin-linked kinase - essential roles in physiology and cancer biology J. Cell Sci., October 1, 2008; 121(19): 3121 - 3132. [Abstract] [Full Text] [PDF] |
||||
![]() |
Z.-F. Lai, Y.-Z. Chen, L.-P. Feng, X.-M. Meng, J.-F. Ding, L.-Y. Wang, J. Ye, P. Li, X.-S. Cheng, Y. Kitamoto, et al. Overexpression of TNNI3K, a cardiac-specific MAP kinase, promotes P19CL6-derived cardiac myogenesis and prevents myocardial infarction-induced injury Am J Physiol Heart Circ Physiol, August 1, 2008; 295(2): H708 - H716. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Elsherif, M. S. Huang, S.-Y. Shai, Y. Yang, R. Y. Li, J. Chun, M. A. Mekany, A. L. Chu, S. J. Kaufman, and R. S. Ross Combined Deficiency of Dystrophin and {beta}1 Integrin in the Cardiac Myocyte Causes Myocardial Dysfunction, Fibrosis and Calcification Circ. Res., May 9, 2008; 102(9): 1109 - 1117. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Sabri, K. Rafiq, R. Seqqat, M. A. Kolpakov, R. Dillon, and L. J. Dell'italia Sympathetic Activation Causes Focal Adhesion Signaling Alteration in Early Compensated Volume Overload Attributable to Isolated Mitral Regurgitation in the Dog Circ. Res., May 9, 2008; 102(9): 1127 - 1136. [Abstract] [Full Text] [PDF] |
||||
![]() |
X. Peng, X. Wu, J. E. Druso, H. Wei, A. Y.-J. Park, M. S. Kraus, A. Alcaraz, J. Chen, S. Chien, R. A. Cerione, et al. Cardiac developmental defects and eccentric right ventricular hypertrophy in cardiomyocyte focal adhesion kinase (FAK) conditional knockout mice PNAS, May 6, 2008; 105(18): 6638 - 6643. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. I. Kontaridis, W. Yang, K. K. Bence, D. Cullen, B. Wang, N. Bodyak, Q. Ke, A. Hinek, P. M. Kang, R. Liao, et al. Deletion of Ptpn11 (Shp2) in Cardiomyocytes Causes Dilated Cardiomyopathy via Effects on the Extracellular Signal-Regulated Kinase/Mitogen-Activated Protein Kinase and RhoA Signaling Pathways Circulation, March 18, 2008; 117(11): 1423 - 1435. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Y. Boateng and P. H. Goldspink Assembly and maintenance of the sarcomere night and day Cardiovasc Res, March 1, 2008; 77(4): 667 - 675. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. J. Hatcher and C. T. Basson Disrupted Intercalated Discs: Is Kindlin-2 Required? Circ. Res., February 29, 2008; 102(4): 392 - 394. [Full Text] [PDF] |
||||
![]() |
J. J. Dowling, E. Gibbs, M. Russell, D. Goldman, J. Minarcik, J. A. Golden, and E. L. Feldman Kindlin-2 Is an Essential Component of Intercalated Discs and Is Required for Vertebrate Cardiac Structure and Function Circ. Res., February 29, 2008; 102(4): 423 - 431. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Diwan, J. Wansapura, F. M. Syed, S. J. Matkovich, J. N. Lorenz, and G. W. Dorn II Nix-Mediated Apoptosis Links Myocardial Fibrosis, Cardiac Remodeling, and Hypertrophy Decompensation Circulation, January 22, 2008; 117(3): 396 - 404. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Lei, D. Liu, Y. Huang, I. Jovin, S.-Y. Shai, T. Kyriakides, R. S. Ross, and F. J. Giordano Endothelial Expression of 1 Integrin Is Required for Embryonic Vascular Patterning and Postnatal Vascular Remodeling Mol. Cell. Biol., January 15, 2008; 28(2): 794 - 802. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. E. Zemljic-Harpf, J. C. Miller, S. A. Henderson, A. T. Wright, A. M. Manso, L. Elsherif, N. D. Dalton, A. K. Thor, G. A. Perkins, A. D. McCulloch, et al. Cardiac-Myocyte-Specific Excision of the Vinculin Gene Disrupts Cellular Junctions, Causing Sudden Death or Dilated Cardiomyopathy Mol. Cell. Biol., November 1, 2007; 27(21): 7522 - 7537. [Abstract] [Full Text] [PDF] |
||||
![]() |
F. G. Spinale Myocardial Matrix Remodeling and the Matrix Metalloproteinases: Influence on Cardiac Form and Function Physiol Rev, October 1, 2007; 87(4): 1285 - 1342. [Abstract] [Full Text] [PDF] |
||||
![]() |
Z. S. Hakim, L. A. DiMichele, J. T. Doherty, J. W. Homeister, H. E. Beggs, L. F. Reichardt, R. J. Schwartz, J. Brackhan, O. Smithies, C. P. Mack, et al. Conditional Deletion of Focal Adhesion Kinase Leads to Defects in Ventricular Septation and Outflow Tract Alignment Mol. Cell. Biol., August 1, 2007; 27(15): 5352 - 5364. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. E. Hannigan, J. G. Coles, and S. Dedhar Integrin-Linked Kinase at the Heart of Cardiac Contractility, Repair, and Disease Circ. Res., May 25, 2007; 100(10): 1408 - 1414. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. W. Donker, J. G. Maessen, F. Verheyen, F. C. Ramaekers, R. L. H. M. G. Spatjens, H. Kuijpers, C. Ramakers, P. M. H. Schiffers, M. A. Vos, H. J. G. M. Crijns, et al. Impact of acute and enduring volume overload on mechanotransduction and cytoskeletal integrity of canine left ventricular myocardium Am J Physiol Heart Circ Physiol, May 1, 2007; 292(5): H2324 - H2332. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. Krishnamurthy, V. Subramanian, M. Singh, and K. Singh {beta}1 Integrins Modulate {beta}-Adrenergic Receptor-Stimulated Cardiac Myocyte Apoptosis and Myocardial Remodeling Hypertension, April 1, 2007; 49(4): 865 - 872. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. Pott, M. Yip, J. I. Goldhaber, and K. D. Philipson Regulation of Cardiac L-Type Ca2+ Current in Na+-Ca2+ Exchanger Knockout Mice: Functional Coupling of the Ca2+ Channel and the Na+-Ca2+ Exchanger Biophys. J., February 15, 2007; 92(4): 1431 - 1437. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. J. Matkovich, A. Diwan, J. L. Klanke, D. J. Hammer, Y. Marreez, A. M. Odley, E. W. Brunskill, W. J. Koch, R. J. Schwartz, and G. W. Dorn II Cardiac-Specific Ablation of G-Protein Receptor Kinase 2 Redefines Its Roles in Heart Development and {beta}-Adrenergic Signaling Circ. Res., October 27, 2006; 99(9): 996 - 1003. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. A. DiMichele, J. T. Doherty, M. Rojas, H. E. Beggs, L. F. Reichardt, C. P. Mack, and J. M. Taylor Myocyte-Restricted Focal Adhesion Kinase Deletion Attenuates Pressure Overload-Induced Hypertrophy Circ. Res., September 15, 2006; 99(6): 636 - 645. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. Srivastava and S. Yu Stretching to meet needs: integrin-linked kinase and the cardiac pump Genes & Dev., September 1, 2006; 20(17): 2327 - 2331. [Full Text] [PDF] |
||||
![]() |
D. E. White, P. Coutu, Y.-F. Shi, J.-C. Tardif, S. Nattel, R. St. Arnaud, S. Dedhar, and W. J. Muller Targeted ablation of ILK from the murine heart results in dilated cardiomyopathy and spontaneous heart failure Genes & Dev., September 1, 2006; 20(17): 2355 - 2360. [Abstract] [Full Text] [PDF] |
||||
![]() |
P Krishnamurthy, V Subramanian, M Singh, and K Singh Deficiency of {beta}1 integrins results in increased myocardial dysfunction after myocardial infarction Heart, September 1, 2006; 92(9): 1309 - 1315. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. Bendig, M. Grimmler, I. G. Huttner, G. Wessels, T. Dahme, S. Just, N. Trano, H. A. Katus, M. C. Fishman, and W. Rottbauer Integrin-linked kinase, a novel component of the cardiac mechanical stretch sensor, controls contractility in the zebrafish heart Genes & Dev., September 1, 2006; 20(17): 2361 - 2372. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Brancaccio, E. Hirsch, A. Notte, G. Selvetella, G. Lembo, and G. Tarone Integrin signalling: The tug-of-war in heart hypertrophy Cardiovasc Res, June 1, 2006; 70(3): 422 - 433. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Hoshijima Mechanical stress-strain sensors embedded in cardiac cytoskeleton: Z disk, titin, and associated structures Am J Physiol Heart Circ Physiol, April 1, 2006; 290(4): H1313 - H1325. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. M. Manso, L. Elsherif, S.-M. Kang, and R. S. Ross Integrins, membrane-type matrix metalloproteinases and ADAMs: Potential implications for cardiac remodeling Cardiovasc Res, February 15, 2006; 69(3): 574 - 584. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. W.M. Fedak, C. S. Moravec, P. M. McCarthy, S. M. Altamentova, A. P. Wong, M. Skrtic, S. Verma, R. D. Weisel, and R.-K. Li Altered Expression of Disintegrin Metalloproteinases and Their Inhibitor in Human Dilated Cardiomyopathy Circulation, January 17, 2006; 113(2): 238 - 245. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. Wang, M. Hoshijima, J. Lam, Z. Zhou, A. Jokiel, N. D. Dalton, K. Hultenby, P. Ruiz-Lozano, J. Ross Jr., K. Tryggvason, et al. Cardiomyopathy Associated with Microcirculation Dysfunction in Laminin {alpha}4 Chain-deficient Mice J. Biol. Chem., January 6, 2006; 281(1): 213 - 220. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. M. Samarel Costameres, focal adhesions, and cardiomyocyte mechanotransduction Am J Physiol Heart Circ Physiol, December 1, 2005; 289(6): H2291 - H2301. [Abstract] [Full Text] [PDF] |
||||
![]() |
X. Liang, Q. Zhou, X. Li, Y. Sun, M. Lu, N. Dalton, J. Ross Jr., and J. Chen PINCH1 Plays an Essential Role in Early Murine Embryonic Development but Is Dispensable in Ventricular Cardiomyocytes Mol. Cell. Biol., April 15, 2005; 25(8): 3056 - 3062. [Abstract] [Full Text] [PDF] |
||||
![]() |
V. Sarin, R. D Gaffin, G. A Meininger, and M. Muthuchamy Arginine-glycine-aspartic acid (RGD)-containing peptides inhibit the force production of mouse papillary muscle bundles via {alpha}5{beta}1 integrin J. Physiol., April 15, 2005; 564(2): 603 - 617. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. J. Shanker, K. Yamada, K. G. Green, K. A. Yamada, and J. E. Saffitz Matrix Protein-Specific Regulation of Cx43 Expression in Cardiac Myocytes Subjected to Mechanical Load Circ. Res., March 18, 2005; 96(5): 558 - 566. [Abstract] [Full Text] [PDF] |
||||
![]() |
I. Kostetskii, J. Li, Y. Xiong, R. Zhou, V. A. Ferrari, V. V. Patel, J. D. Molkentin, and G. L. Radice Induced Deletion of the N-Cadherin Gene in the Heart Leads to Dissolution of the Intercalated Disc Structure Circ. Res., February 18, 2005; 96(3): 346 - 354. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. M. Fonseca, R. Y. Inoue, C. B. Kobarg, D. P. Crosara-Alberto, J. Kobarg, and K. G. Franchini Targeting to C-Terminal Myosin Heavy Chain May Explain Mechanotransduction Involving Focal Adhesion Kinase in Cardiac Myocytes Circ. Res., January 7, 2005; 96(1): 73 - 81. [Abstract] [Full Text] [PDF] |
||||
![]() |
Z. Xie, M. Singh, and K. Singh Osteopontin Modulates Myocardial Hypertrophy in Response to Chronic Pressure Overload in Mice Hypertension, December 1, 2004; 44(6): 826 - 831. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. A. Henderson, J. I. Goldhaber, J. M. So, T. Han, C. Motter, A. Ngo, C. Chantawansri, M. R. Ritter, M. Friedlander, D. A. Nicoll, et al. Functional Adult Myocardium in the Absence of Na+-Ca2+ Exchange: Cardiac-Specific Knockout of NCX1 Circ. Res., September 17, 2004; 95(6): 604 - 611. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. E. Zemljic-Harpf, S. Ponrartana, R. T. Avalos, M. C. Jordan, K. P. Roos, N. D. Dalton, V. Q. Phan, E. D. Adamson, and R. S. Ross Heterozygous Inactivation of the Vinculin Gene Predisposes to Stress-Induced Cardiomyopathy Am. J. Pathol., September 1, 2004; 165(3): 1033 - 1044. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. Matsui, N. Jia, H. Okamoto, S. Kon, H. Onozuka, M. Akino, L. Liu, J. Morimoto, S. R. Rittling, D. Denhardt, et al. Role of Osteopontin in Cardiac Fibrosis and Remodeling in Angiotensin II-Induced Cardiac Hypertrophy Hypertension, June 1, 2004; 43(6): 1195 - 1201. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. V. Finsen, P. R. Woldbaek, J. Li, J. Wu, T. Lyberg, T. Tonnessen, and G. Christensen Increased syndecan expression following myocardial infarction indicates a role in cardiac remodeling Physiol Genomics, February 13, 2004; 16(3): 301 - 308. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. H. Sugden Ras, Akt, and Mechanotransduction in the Cardiac Myocyte Circ. Res., December 12, 2003; 93(12): 1179 - 1192. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Balasubramanian and D. Kuppuswamy RGD-containing Peptides Activate S6K1 through {beta}3 Integrin in Adult Cardiac Muscle Cells J. Biol. Chem., October 24, 2003; 278(43): 42214 - 42224. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. S. Torsoni, S. S. Constancio, W. Nadruz Jr, S. K. Hanks, and K. G. Franchini Focal Adhesion Kinase Is Activated and Mediates the Early Hypertrophic Response to Stretch in Cardiac Myocytes Circ. Res., July 25, 2003; 93(2): 140 - 147. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. A. Eble, P. Bruckner, and U. Mayer Vipera lebetina Venom Contains Two Disintegrins Inhibiting Laminin-binding {beta}1 Integrins J. Biol. Chem., July 11, 2003; 278(29): 26488 - 26496. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. Luo and G. L. Radice Cadherin-mediated adhesion is essential for myofibril continuity across the plasma membrane but not for assembly of the contractile apparatus J. Cell Sci., April 15, 2003; 116(8): 1471 - 1479. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. A. Sussman, A. McCulloch, and T. K. Borg Dance Band on the Titanic: Biomechanical Signaling in Cardiac Hypertrophy Circ. Res., November 15, 2002; 91(10): 888 - 898. [Abstract] [Full Text] [PDF] |
||||
|
Circulation Research Home | Subscriptions | Archives | Feedback | Authors | Help | AHA Journals Home | Search Copyright © 2002 American Heart Association, Inc. All rights reserved. Unauthorized use prohibited. |