ADAMTS-7 is associated with a high-risk plaque phenotype in human atherosclerosis

Sci Rep. 2017 Jun 16;7(1):3753. doi: 10.1038/s41598-017-03573-4.

Abstract

Several large-scale genome-wide association studies have identified single-nucleotide polymorphisms in the genomic region of A Disintegrin And Metalloproteinase with ThromboSpondin type 1 repeats (ADAMTS)-7 and associations to coronary artery disease. Experimental studies have provided evidence for a functional role of ADAMTS-7 in both injury-induced vascular neointima formation and development of atherosclerotic lesions. However, whether ADAMTS-7 is associated with a specific plaque phenotype in humans has not been investigated. Carotid plaques (n = 206) from patients with and without cerebrovascular symptoms were analyzed for expression of ADAMTS-7 by immunohistochemistry and correlated to components associated with plaque vulnerability. Plaques from symptomatic patients showed increased levels of ADAMTS-7 compared with lesions from asymptomatic patients. High levels of ADAMTS-7 correlated with high levels of CD68-staining and lipid content, but with low smooth muscle cell and collagen content, which together are characteristics of a vulnerable plaque phenotype. ADAMTS-7 levels above median were associated with increased risk for postoperative cardiovascular events. Our data show that ADAMTS-7 is associated with a vulnerable plaque phenotype in human carotid lesions. These data support previous observations of a potential proatherogenic role of ADAMTS-7.

Publication types

  • Clinical Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • ADAMTS7 Protein / genetics
  • ADAMTS7 Protein / metabolism
  • Aged
  • Carotid Artery Diseases* / enzymology
  • Carotid Artery Diseases* / genetics
  • Carotid Artery Diseases* / pathology
  • Female
  • Genome-Wide Association Study*
  • Humans
  • Male
  • Middle Aged
  • Myocytes, Smooth Muscle* / enzymology
  • Myocytes, Smooth Muscle* / pathology
  • Neointima* / enzymology
  • Neointima* / genetics
  • Neointima* / pathology
  • Plaque, Atherosclerotic* / enzymology
  • Plaque, Atherosclerotic* / genetics
  • Plaque, Atherosclerotic* / pathology
  • Risk Factors

Substances

  • ADAMTS7 Protein
  • ADAMTS7 protein, human