MMP-2/TIMP-2/TIMP-4 versus MMP-9/TIMP-3 in transition from compensatory hypertrophy and angiogenesis to decompensatory heart failure

Srikanth Givvimani, Neetu Tyagi, Utpal Sen, Paras Kumar Mishra, Natia Qipshidze, Charu Munjal, Jonathan C. Vacek, Oluwasegun A. Abe, Suresh C. Tyagi

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Although matrix metalloproteinase (MMPs) and tissue inhibitor of metalloproteinase (TIMPs) play a vital role in tumour angiogenesis and TIMP-3 caused apoptosis, their role in cardiac angiogenesis is unknown. Interestingly, a disruption of co-ordinated cardiac hypertrophy and angiogenesis contributed to the transition to heart failure, however, the proteolytic and anti-angiogenic mechanisms of transition from compensatory hypertrophy to decompensatory heart failure were unclear. We hypothesized that after an aortic stenosis MMP-2 released angiogenic factors during compensatory hypertrophy and MMP-9/TIMP-3 released anti-angiogenic factors causing decompensatory heart failure. To verify this hypothesis, wild type (WT) mice were studied 3 and 8 weeks after aortic stenosis, created by banding the ascending aorta in WT and MMP-9-/- (MMP-9KO) mice. Cardiac function (echo, PV loops) was decreased at 8 weeks after stenosis. The levels of MMP-2 (western blot) increased at 3 weeks and returned to control level at 8 weeks, MMP-9 increased only at 8 weeks. TIMP-2 and -4 decreased at 3 and even more at 8 weeks. The angiogenic VEGF increased at 3 weeks and decreased at 8 weeks, the anti-angiogenic endostatin and angiostatin increased only at 8 weeks. CD-31 positive endothelial cells were more intensely labelled at 3 weeks than in sham operated or in 8 weeks banded mice. Vascularization, as estimated by x-ray angiography, was increased at 3 weeks and decreased at 8 weeks post-banding. Although the vast majority of studies were performed on control WT mice only, interestingly, MMP9-KO mice seemed to have increased vascular density 8 weeks after banding. These results suggested that there was increase in MMP-2, decrease in TIMP-2 and -4, increase in angiogenic factors and vascularization in compensatory hearts. However, in decompensatory hearts there was increase in MMP-9, TIMP-3, endostatin, angiostatin and vascular rarefaction.

Original languageEnglish (US)
Pages (from-to)63-72
Number of pages10
JournalArchives of Physiology and Biochemistry
Volume116
Issue number2
DOIs
StatePublished - May 1 2010

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Tissue Inhibitor of Metalloproteinase-3
Tissue Inhibitor of Metalloproteinase-2
Matrix Metalloproteinase 2
Matrix Metalloproteinase 9
Hypertrophy
Heart Failure
Angiogenesis Inducing Agents
Angiostatins
Endostatins
Aortic Valve Stenosis
Blood Vessels
Tissue Inhibitor of Metalloproteinases
Angiogenesis Inhibitors
Matrix Metalloproteinase Inhibitors
Cardiomegaly
Matrix Metalloproteinases
Vascular Endothelial Growth Factor A
Aorta
Angiography
Pathologic Constriction

Keywords

  • Angiostatin
  • Aortic banding
  • Capillary rarefaction
  • Endostatin
  • Endothelial
  • TAC
  • VEGF
  • Vasculogenesis
  • X-ray angiography

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)

Cite this

MMP-2/TIMP-2/TIMP-4 versus MMP-9/TIMP-3 in transition from compensatory hypertrophy and angiogenesis to decompensatory heart failure. / Givvimani, Srikanth; Tyagi, Neetu; Sen, Utpal; Mishra, Paras Kumar; Qipshidze, Natia; Munjal, Charu; Vacek, Jonathan C.; Abe, Oluwasegun A.; Tyagi, Suresh C.

In: Archives of Physiology and Biochemistry, Vol. 116, No. 2, 01.05.2010, p. 63-72.

Research output: Contribution to journalArticle

Givvimani, Srikanth ; Tyagi, Neetu ; Sen, Utpal ; Mishra, Paras Kumar ; Qipshidze, Natia ; Munjal, Charu ; Vacek, Jonathan C. ; Abe, Oluwasegun A. ; Tyagi, Suresh C. / MMP-2/TIMP-2/TIMP-4 versus MMP-9/TIMP-3 in transition from compensatory hypertrophy and angiogenesis to decompensatory heart failure. In: Archives of Physiology and Biochemistry. 2010 ; Vol. 116, No. 2. pp. 63-72.
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