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COX-2 and atherosclerosis.

Francesco Cipollone1, Maria Luigia Fazia

  • 1Atherosclerosis Prevention Center, G. d'Annunzio University of Chieti, Chieti, Italy. fcipollone@unich.it

Journal of Cardiovascular Pharmacology
|June 21, 2006
PubMed
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Inflammation drives atherosclerosis and ischemic syndromes. Our findings suggest cyclooxygenase-2 (COX-2) significantly impacts atherosclerotic plaque stability, influencing cardiovascular and cerebrovascular events.

Area of Science:

  • Cardiovascular Biology
  • Inflammation Research
  • Atherosclerosis Pathophysiology

Background:

  • Inflammation is central to atherosclerotic disease development and plaque disruption, a cause of acute ischemic syndromes.
  • Arachidonic acid metabolism, particularly via cyclooxygenase (COX) enzymes, is implicated in the pathophysiology of ischemic syndromes.
  • While platelet COX-1's role in ischemic disease is known, COX-2's function in atherothrombosis remains unclear.

Purpose of the Study:

  • To investigate the role of cyclooxygenase-2 (COX-2) in modulating atherosclerotic plaque stability.
  • To explore how variable expression of upstream and downstream enzymes in prostanoid biosynthesis affects COX-2's role in atherothrombosis.

Main Methods:

  • Review of findings from the authors' group regarding COX-2 expression and function in atherosclerosis.

Related Experiment Videos

  • Analysis of biochemical measurements of eicosanoid biosynthesis.
  • Evaluation of inhibitor trials in coronary and cerebrovascular settings.

    • Main Results:

    • Evidence suggests a crucial role for COX-2 in modulating atherosclerotic plaque stability or instability.
    • The impact of COX-2 appears dependent on the variable expression of associated upstream and downstream enzymes in prostanoid biosynthesis.

    Conclusions:

    • Cyclooxygenase-2 (COX-2) plays a significant role in atherosclerotic plaque stability.
    • Understanding the interplay of COX-2 with other enzymes in prostanoid pathways is key to elucidating its role in atherothrombosis and ischemic syndromes.