Pentosan polysulfate inhibits atherosclerosis in Watanabe heritable hyperlipidemic rabbits: Differential modulation of metalloproteinase-2 and -9

Enrico Lupia, Feng Zheng, Fabrizio Grosjean, Ivan Tack, Sophie Doublier, Sharon Elliot, Helen Vlassara, Gary E. Striker

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Pentosan polysulfate (PPS), a heparinoid compound essentially devoid of anticoagulant activity, modulates cell growth and decreases inflammation. We investigated the effect of PPS on the progression of established atherosclerosis in Watanabe heritable hyperlipidemic (WHHL) rabbits. After severe atherosclerosis developed on an atherogenic diet, WHHL rabbits were treated with oral PPS or tap water for 1 month. The aortic intima-to-media ratio and macrophage infiltration were reduced, plaque collagen content was increased, and plaque fibrous caps were preserved by PPS treatment. Plasma lipid levels and post-heparin hepatic lipase activity remained unchanged. However, net collagenolytic activity in aortic extracts was decreased, and the levels of matrix metalloproteinase (MMP)-2 and tissue inhibitor of metalloproteinase (TIMP) activity were increased by PPS. Moreover, PPS treatment decreased tumor necrosis factor α (TNFα)-stimulated proinflammatory responses, in particular activation of nuclear factor-B and p38, and activation of MMPs in macrophages. In conclusion, oral PPS treatment prevents progression of established atherosclerosis in WHHL rabbits. This effect may be partially mediated by increased MMP-2 and TIMP activities in the aortic wall and reduced TNFα-stimulated inflammation and MMP activation in macrophages. Thus, PPS may be a useful agent in inhibiting the progression of atherosclerosis.

Original languageEnglish
Pages (from-to)236-245
Number of pages10
JournalLaboratory Investigation
Volume92
Issue number2
DOIs
StatePublished - Feb 1 2012

Fingerprint

Pentosan Sulfuric Polyester
Metalloproteases
Atherosclerosis
Rabbits
Tissue Inhibitor of Metalloproteinases
Matrix Metalloproteinase Inhibitors
Matrix Metalloproteinase 2
Matrix Metalloproteinases
Tumor Necrosis Factor-alpha
Macrophages
Heparinoids
Atherogenic Diet
Inflammation
Macrophage Activation
Lipoprotein Lipase
Anticoagulants
Collagen
Lipids

Keywords

  • atherosclerosis
  • heparin-like
  • lipids
  • macrophages
  • metalloproteinases
  • TNFα

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Cell Biology
  • Molecular Biology

Cite this

Pentosan polysulfate inhibits atherosclerosis in Watanabe heritable hyperlipidemic rabbits : Differential modulation of metalloproteinase-2 and -9. / Lupia, Enrico; Zheng, Feng; Grosjean, Fabrizio; Tack, Ivan; Doublier, Sophie; Elliot, Sharon; Vlassara, Helen; Striker, Gary E.

In: Laboratory Investigation, Vol. 92, No. 2, 01.02.2012, p. 236-245.

Research output: Contribution to journalArticle

Lupia, Enrico ; Zheng, Feng ; Grosjean, Fabrizio ; Tack, Ivan ; Doublier, Sophie ; Elliot, Sharon ; Vlassara, Helen ; Striker, Gary E. / Pentosan polysulfate inhibits atherosclerosis in Watanabe heritable hyperlipidemic rabbits : Differential modulation of metalloproteinase-2 and -9. In: Laboratory Investigation. 2012 ; Vol. 92, No. 2. pp. 236-245.
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