Perivascular adipose tissue: More than just structural support

Theodora Szasz, R. Clinton Webb

Research output: Contribution to journalArticlepeer-review

183 Scopus citations


PVAT (perivascular adipose tissue) has recently been recognized as a novel factor in vascular biology, with implications in the pathophysiology of cardiovascular disease. Composed mainly of adipocytes, PVAT releases a wide range of biologically active molecules that modulate vascular smooth muscle cell contraction, proliferation and migration. PVAT exerts an anti-contractile effect in various vascular beds which seems to be mediated by an as yet elusive PVRF [PVATderived relaxing factor(s)]. Considerable progress has been made on deciphering the nature and mechanisms of action of PVRF, and the PVRFs proposed until now are reviewed here. However, complex pathways seem to regulate PVAT function and more than one mechanism is probably responsible for PVAT actions in vascular biology. The present review describes our current knowledge on the structure and function of PVAT, with a focus on its role in modulating vascular tone. Potential involvements of PVAT dysfunction in obesity, hypertension and atherosclerosis will be highlighted.

Original languageEnglish (US)
Pages (from-to)1-12
Number of pages12
JournalClinical Science
Issue number1
StatePublished - Jan 2012
Externally publishedYes


  • Adipokine
  • Atherosclerosis
  • Hypertension
  • Obesity
  • Perivascular adipose tissue
  • Vascular contraction

ASJC Scopus subject areas

  • Medicine(all)


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