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(Circulation. 1999;99:3063-3070.)
© 1999 American Heart Association, Inc.


Basic Science Reports

Matrix Metalloproteinase Inhibition Attenuates Early Left Ventricular Enlargement After Experimental Myocardial Infarction in Mice

Luis E. Rohde, MD; Anique Ducharme, MD; Luis H. Arroyo, MD; Masanori Aikawa, MD, PhD; Galina H. Sukhova, PhD; Arturo Lopez-Anaya, PhD; Kim F. McClure, PhD; Peter G. Mitchell, PhD; Peter Libby, MD; Richard T. Lee, MD

From the Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (L.E.R., A.D., L.H.A., M.A., G.H.S., P.L., R.T.L.), and Pfizer Central Research, Groton, Conn (A.L.-A., K.F.M., P.G.M.).

Correspondence to Richard T. Lee, MD, Cardiovascular Division, Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115.

Background—Extracellular matrix synthesis and degradation contribute to the morphological changes that occur after myocardial infarction (MI).

Methods and Results—We tested the hypothesis that inhibition of matrix metalloproteinases (MMPs) attenuates left ventricular remodeling in experimental MI. Seventy-one male FVB mice that survived ligation of the left anterior coronary artery were randomized to a broad-spectrum MMP inhibitor (CP-471,474) or placebo by gavage. Echocardiographic studies were performed before randomization (within 24 hours of surgery) and 4 days later and included short-axis imaging at the midpapillary and apical levels. Infarction as defined by wall motion abnormality was achieved in 79% of the procedures (n=56), and mortality rate during the 4-day protocol was 23% (9 of 36 on treatment vs 7 of 35 on placebo; P=NS). Baseline end-diastolic and end-systolic dimensions and areas were similar (P=NS) between treated and placebo groups. At follow-up, infarcted mice allocated to MMP inhibitor had significantly smaller increases in end-systolic and end-diastolic dimensions and areas at both midpapillary and apical levels compared with infarcted mice allocated to placebo (all P<0.05). In addition, infarcted animals that received MMP inhibitor had no change in fractional shortening (-3±13%), whereas animals that received placebo had a decrease in fractional shortening (-12±12%) (P<0.05). In an analysis stratified by baseline end-diastolic area, the effects of MMP inhibition on the changes in end-systolic area and end-diastolic area were most prominent in animals that had more initial left ventricular dilatation (both P<0.05).

Conclusions—–Administration of an MMP inhibitor attenuates early left ventricular dilation after experimental MI in mice. Further studies in genetically altered mice and other models will improve understanding of the role of MMPs in left ventricular remodeling.


Key Words: myocardial infarction • metalloproteinases • left ventricle




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E. M. Wilson, S. L. Moainie, J. M. Baskin, A. S. Lowry, A. M. Deschamps, R. Mukherjee, T. S. Guy, M. G. St John-Sutton, J. H. Gorman III, L. H. Edmunds Jr, et al.
Region- and Type-Specific Induction of Matrix Metalloproteinases in Post-Myocardial Infarction Remodeling
Circulation, June 10, 2003; 107(22): 2857 - 2863.
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J. Clin. Endocrinol. Metab.Home page
P. Dandona, A. Aljada, A. Chaudhuri, and A. Bandyopadhyay
The Potential Influence of Inflammation and Insulin Resistance on the Pathogenesis and Treatment of Atherosclerosis-Related Complications in Type 2 Diabetes
J. Clin. Endocrinol. Metab., June 1, 2003; 88(6): 2422 - 2429.
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Am. J. Physiol. Heart Circ. Physiol.Home page
B. S. McGowan, C. B. Scott, A. Mu, R. J. McCormick, D. P. Thomas, and K. B. Margulies
Unloading-induced remodeling in the normal and hypertrophic left ventricle
Am J Physiol Heart Circ Physiol, June 1, 2003; 284(6): H2061 - H2068.
[Abstract] [Full Text] [PDF]


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ChestHome page
M. Selman, J. Cisneros-Lira, M. Gaxiola, R. Ramirez, E. M. Kudlacz, P. G. Mitchell, and A. Pardo
Matrix Metalloproteinases Inhibition Attenuates Tobacco Smoke-Induced Emphysema in Guinea Pigs
Chest, May 1, 2003; 123(5): 1633 - 1641.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
H. Chen, D. Li, T. Saldeen, and J. L. Mehta
TGF-beta 1 attenuates myocardial ischemia-reperfusion injury via inhibition of upregulation of MMP-1
Am J Physiol Heart Circ Physiol, May 1, 2003; 284(5): H1612 - H1617.
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J. Thorac. Cardiovasc. Surg.Home page
W. M. Yarbrough, R. Mukherjee, T. A. Brinsa, K. B. Dowdy, A. A. Scott, G. P. Escobar, C. Joffs, D. G. Lucas, F. A. Crawford Jr, and F. G. Spinale
Matrix metalloproteinase inhibition modifies left ventricular remodeling after myocardial infarction in pigs
J. Thorac. Cardiovasc. Surg., March 1, 2003; 125(3): 602 - 610.
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Circ. Res.Home page
M. K. King, M. L. Coker, A. Goldberg, J. H. McElmurray III, H. R. Gunasinghe, R. Mukherjee, M. R. Zile, T. P. O'Neill, and F. G. Spinale
Selective Matrix Metalloproteinase Inhibition With Developing Heart Failure: Effects on Left Ventricular Function and Structure
Circ. Res., February 7, 2003; 92(2): 177 - 185.
[Abstract] [Full Text] [PDF]


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CirculationHome page
R. Mukherjee, T. A. Brinsa, K. B. Dowdy, A. A. Scott, J. M. Baskin, A. M. Deschamps, A. S. Lowry, G. P. Escobar, D. G. Lucas, W. M. Yarbrough, et al.
Myocardial Infarct Expansion and Matrix Metalloproteinase Inhibition
Circulation, February 4, 2003; 107(4): 618 - 625.
[Abstract] [Full Text] [PDF]


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Cardiovasc ResHome page
W. Briest, A. Holzl, B. Rassler, A. Deten, H. A Baba, and H.-G. Zimmer
Significance of matrix metalloproteinases in norepinephrine-induced remodelling of rat hearts
Cardiovasc Res, February 1, 2003; 57(2): 379 - 387.
[Abstract] [Full Text] [PDF]


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Cardiovasc ResHome page
C. Qun Gao, G. Sawicki, W. L Suarez-Pinzon, T. Csont, M. Wozniak, P. Ferdinandy, and R. Schulz
Matrix metalloproteinase-2 mediates cytokine-induced myocardial contractile dysfunction
Cardiovasc Res, February 1, 2003; 57(2): 426 - 433.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
C. F. Baicu, J. D. Stroud, V. A. Livesay, E. Hapke, J. Holder, F. G. Spinale, and M. R. Zile
Changes in extracellular collagen matrix alter myocardial systolic performance
Am J Physiol Heart Circ Physiol, January 1, 2003; 284(1): H122 - H132.
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Am. J. Physiol. Heart Circ. Physiol.Home page
E. E. J. M. Creemers, J. N. Davis, A. M. Parkhurst, P. Leenders, K. B. Dowdy, E. Hapke, A. M. Hauet, P. G. Escobar, J. P. M. Cleutjens, J. F. M. Smits, et al.
Deficiency of TIMP-1 exacerbates LV remodeling after myocardial infarction in mice
Am J Physiol Heart Circ Physiol, January 1, 2003; 284(1): H364 - H371.
[Abstract] [Full Text] [PDF]


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J Am Coll CardiolHome page
W. S. Bradham Jr, H. Gunasinghe, J. R. Holder, M. Multani, D. Killip, M. Anderson, D. Meyer, W. H. Spencer III, G. Torre-Amione, and F. G. Spinale
Release of matrix metalloproteinases following alcohol septal ablation in hypertrophic obstructive cardiomyopathy
J. Am. Coll. Cardiol., December 18, 2002; 40(12): 2165 - 2173.
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Am. J. Physiol. Heart Circ. Physiol.Home page
D. Li, V. Williams, L. Liu, H. Chen, T. Sawamura, T. Antakli, and J. L. Mehta
LOX-1 inhibition in myocardial ischemia-reperfusion injury: modulation of MMP-1 and inflammation
Am J Physiol Heart Circ Physiol, November 1, 2002; 283(5): H1795 - H1801.
[Abstract] [Full Text] [PDF]


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J Am Coll CardiolHome page
M. B. Ratcliffe
Non-ischemic infarct extension: A new type of infarct enlargement and a potential therapeutic target
J. Am. Coll. Cardiol., September 18, 2002; 40(6): 1168 - 1171.
[Full Text] [PDF]


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CirculationHome page
W. Wang, C. J. Schulze, W. L. Suarez-Pinzon, J. R.B. Dyck, G. Sawicki, and R. Schulz
Intracellular Action of Matrix Metalloproteinase-2 Accounts for Acute Myocardial Ischemia and Reperfusion Injury
Circulation, September 17, 2002; 106(12): 1543 - 1549.
[Abstract] [Full Text] [PDF]


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Eur. J. Cardiothorac. Surg.Home page
V. Falk, P.M. Soccal, J. Grunenfelder, G. Hoyt, T. Walther, and R.C. Robbins
Regulation of matrix metalloproteinases and effect of MMP-inhibition in heart transplant related reperfusion injury
Eur. J. Cardiothorac. Surg., July 1, 2002; 22(1): 53 - 58.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
J. D. Stroud, C. F. Baicu, M. A. Barnes, F. G. Spinale, and M. R. Zile
Viscoelastic properties of pressure overload hypertrophied myocardium: effect of serine protease treatment
Am J Physiol Heart Circ Physiol, June 1, 2002; 282(6): H2324 - H2335.
[Abstract] [Full Text] [PDF]


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Cardiovasc ResHome page
M. M. Thompson and I. B. Squire
Matrix metalloproteinase-9 expression after myocardial infarction: physiological or pathological?
Cardiovasc Res, June 1, 2002; 54(3): 495 - 498.
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Cardiovasc ResHome page
A. M. Romanic, S. M. Harrison, W. Bao, C. L. Burns-Kurtis, S. Pickering, J. Gu, E. Grau, J. Mao, G. M. Sathe, E. H. Ohlstein, et al.
Myocardial protection from ischemia/reperfusion injury by targeted deletion of matrix metalloproteinase-9
Cardiovasc Res, June 1, 2002; 54(3): 549 - 558.
[Abstract] [Full Text] [PDF]


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Cardiovasc ResHome page
D. Fraccarollo, P. Galuppo, J. Bauersachs, and G. Ertl
Collagen accumulation after myocardial infarction: effects of ETA receptor blockade and implications for early remodeling: Presented in part at the 72nd Scientific Session of the American Heart Association, Atlanta, GA, USA, November 7-10, 1999, and published in abstract form (Circulation 1999;100(Suppl. 1):562)
Cardiovasc Res, June 1, 2002; 54(3): 559 - 567.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
W. S. Bradham, G. Moe, K. A. Wendt, A. A. Scott, A. Konig, M. Romanova, G. Naik, and F. G. Spinale
TNF-alpha and myocardial matrix metalloproteinases in heart failure: relationship to LV remodeling
Am J Physiol Heart Circ Physiol, April 1, 2002; 282(4): H1288 - H1295.
[Abstract] [Full Text] [PDF]


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Circ. Res.Home page
F. G. Spinale
Matrix Metalloproteinases: Regulation and Dysregulation in the Failing Heart
Circ. Res., March 22, 2002; 90(5): 520 - 530.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
Y. Y. Li, T. Kadokami, P. Wang, C. F. McTiernan, and A. M. Feldman
MMP inhibition modulates TNF-alpha transgenic mouse phenotype early in the development of heart failure
Am J Physiol Heart Circ Physiol, March 1, 2002; 282(3): H983 - H989.
[Abstract] [Full Text] [PDF]


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Cardiovasc ResHome page
W. S. Bradham, B. Bozkurt, H. Gunasinghe, D. Mann, and F. G. Spinale
Tumor necrosis factor-alpha and myocardial remodeling in progression of heart failure: a current perspective
Cardiovasc Res, March 1, 2002; 53(4): 822 - 830.
[Abstract] [Full Text] [PDF]


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CirculationHome page
J. I. Nwogu, D. Geenen, M. Bean, M. C. Brenner, X. Huang, and P. M. Buttrick
Inhibition of Collagen Synthesis With Prolyl 4-Hydroxylase Inhibitor Improves Left Ventricular Function and Alters the Pattern of Left Ventricular Dilatation After Myocardial Infarction
Circulation, October 30, 2001; 104(18): 2216 - 2221.
[Abstract] [Full Text] [PDF]


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CirculationHome page
T. Walther, A. Schubert, V. Falk, C. Binner, A. Kanev, S. Bleiziffer, C. Walther, N. Doll, R. Autschbach, and F. W. Mohr
Regression of Left Ventricular Hypertrophy After Surgical Therapy for Aortic Stenosis Is Associated With Changes in Extracellular Matrix Gene Expression
Circulation, September 18, 2001; 104 (2009): I-54 - I-58.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
T. Etoh, C. Joffs, A. M. Deschamps, J. Davis, K. Dowdy, J. Hendrick, S. Baicu, R. Mukherjee, M. Manhaini, and F. G. Spinale
Myocardial and interstitial matrix metalloproteinase activity after acute myocardial infarction in pigs
Am J Physiol Heart Circ Physiol, September 1, 2001; 281(3): H987 - H994.
[Abstract] [Full Text] [PDF]


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Circ. Res.Home page
E. E.J.M. Creemers, J. P.M. Cleutjens, J. F.M. Smits, and M. J.A.P. Daemen
Matrix Metalloproteinase Inhibition After Myocardial Infarction: A New Approach to Prevent Heart Failure?
Circ. Res., August 3, 2001; 89(3): 201 - 210.
[Abstract] [Full Text] [PDF]


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CirculationHome page
J. T. Peterson, H. Hallak, L. Johnson, H. Li, P. M. O'Brien, D. R. Sliskovic, T. M. A. Bocan, M. L. Coker, T. Etoh, and F. G. Spinale
Matrix Metalloproteinase Inhibition Attenuates Left Ventricular Remodeling and Dysfunction in a Rat Model of Progressive Heart Failure
Circulation, May 8, 2001; 103(18): 2303 - 2309.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
B. K. Podesser, D. A. Siwik, F. R. Eberli, F. Sam, S. Ngoy, J. Lambert, K. Ngo, C. S. Apstein, and W. S. Colucci
ETA-receptor blockade prevents matrix metalloproteinase activation late postmyocardial infarction in the rat
Am J Physiol Heart Circ Physiol, March 1, 2001; 280(3): H984 - H991.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Cell Physiol.Home page
D. A. Siwik, P. J. Pagano, and W. S. Colucci
Oxidative stress regulates collagen synthesis and matrix metalloproteinase activity in cardiac fibroblasts
Am J Physiol Cell Physiol, January 1, 2001; 280(1): C53 - C60.
[Abstract] [Full Text] [PDF]


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CirculationHome page
P. Libby and R. T. Lee
Matrix Matters
Circulation, October 17, 2000; 102(16): 1874 - 1876.
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Circ. Res.Home page
S. Kinugawa, H. Tsutsui, S. Hayashidani, T. Ide, N. Suematsu, S. Satoh, H. Utsumi, and A. Takeshita
Treatment With Dimethylthiourea Prevents Left Ventricular Remodeling and Failure After Experimental Myocardial Infarction in Mice : Role of Oxidative Stress
Circ. Res., September 1, 2000; 87(5): 392 - 398.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
L. Lu, Z. Gunja-Smith, J. F. Woessner, P. C. Ursell, T. Nissen, R. E. Galardy, Y. Xu, P. Zhu, and G. G. Schwartz
Matrix metalloproteinases and collagen ultrastructure in moderate myocardial ischemia and reperfusion in vivo
Am J Physiol Heart Circ Physiol, August 1, 2000; 279(2): H601 - H609.
[Abstract] [Full Text] [PDF]


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CirculationHome page
M. V. Cohen, X.-M. Yang, T. Neumann, G. Heusch, and J. M. Downey
Favorable Remodeling Enhances Recovery of Regional Myocardial Function in the Weeks After Infarction in Ischemically Preconditioned Hearts
Circulation, August 1, 2000; 102(5): 579 - 583.
[Abstract] [Full Text] [PDF]


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Circ. Res.Home page
D. A. Siwik, D. L.-F. Chang, and W. S. Colucci
Interleukin-1{beta} and Tumor Necrosis Factor-{alpha} Decrease Collagen Synthesis and Increase Matrix Metalloproteinase Activity in Cardiac Fibroblasts In Vitro
Circ. Res., June 23, 2000; 86(12): 1259 - 1265.
[Abstract] [Full Text] [PDF]