Cited by 386Eicosanoids and Hypertension PharmacologyInflammatory mediators and NSAID effectsNitric Oxide and Endothelin Effects

Cytochrome P450 and Vascular Homeostasis

Fleming, Ingrid·2001·Circulation Research

Abstract

Since the initial reports that renal cytochrome P450 (CYP) enzymes can metabolize arachidonic acid to substances which affect arterial tone, it has become increasingly clear that CYP enzymes expressed within the cardiovascular system play a crucial role in the modulation of vascular homeostasis. There is strong evidence suggesting that the activation of a CYP epoxygenase in endothelial cells is an essential step in nitric oxide and prostacyclin-independent vasodilatation of several vascular beds, particularly in the heart and kidney. A smooth muscle CYP ω-hydroxylase, on the other hand, generates a vasoconstrictor eicosanoid that is central to the myogenic response. Moreover, CYP epoxygenase and ω-hydroxylase products, as well as CYP-derived reactive oxygen species, are intracellular signal transduction molecules involved in several signaling cascades affecting numerous cellular processes, including vascular cell proliferation and angiogenesis. This review summarizes the vascular effects of epoxyeicosatrienoic acids and 20-hydroxyeicosatetraenoic acid, both of which are CYP-derived metabolites of arachidonic acid, endogenously generated within endothelial and vascular smooth muscle cells. Although the link between CYP expression/activity and cardiovascular disease is currently tentative, the evidence being accumulated to suggest that CYP pathways are altered in animal models of hypertension and atherosclerosis can no longer be ignored. The development of selective pharmacological tools is, however, a prerequisite for the analysis of the involvement of specific CYP isoforms in the regulation of vascular homeostasis in human subjects.

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  1. Zhang Y, Oltman CL, Lu T, Lee HC, Dellsperger KC, VanRollins M. EET homologues potently dilate coronary microvessels and activate BK Ca channels. Am J Physiol Heart Circ Physiol. 2001;280: H2430 -H2440.
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Authors
Fleming, I.
Affiliations
Goethe University Frankfurt (DE)
Corresponding author
Fleming, Ingrid
Venue
Circulation Research
Published
2001-10-26
Volume
89
Issue
9
Pages
753-762
ISSN
  • 0009-7330 (ISSN-L)
  • 1524-4571
OpenAlex
W2168349092
Cited by
383
References
142
Citations by year
2026: 4 · 2025: 6 · 2024: 3 · 2023: 5 · 2022: 5 · 2021: 5 · 2020: 8 · 2019: 13 · 2018: 11 · 2017: 15 · 2016: 11 · 2015: 11 · 2014: 21 · 2013: 8 · 2012: 13
FWCI
2.56
Type
journal article
Language
en
Open access
closed
Locations
  • Circulation Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Deutsche Forschungsgemeinschaft (SFB 553)
  • Servier
  • Institut de Recherches Servier
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Eicosanoids and Hypertension Pharmacology
  • Health Sciences › Medicine › Pharmacology › Inflammatory mediators and NSAID effects
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
cytochrome P450, vascular homeostasis, arachidonic acid metabolism, epoxyeicosatrienoic acids, 20-hydroxyeicosatetraenoic acid, endothelial cells, vascular smooth muscle cells, vasodilation, vasoconstriction, myogenic response, reactive oxygen species, signal transduction, angiogenesis, hypertension, atherosclerosis, cardiovascular disease
MeSH terms
Animals, Biological Factors, Cardiovascular System, Cytochrome P-450 Enzyme System, Endothelium, Vascular, Epoxy Compounds, Free Radicals, Homeostasis, Humans, Hydroxyeicosatetraenoic Acids, Mixed Function Oxygenases, Isoenzymes, Muscle, Smooth, Vascular, Vasomotor System, 8,11,14-Eicosatrienoic Acid, Arachidonic Acid, Cytochrome P-450 CYP4A

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