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J Appl Physiol (1985). 2008 Oct;105(4):1333-41. doi: 10.1152/japplphysiol.90470.2008. Epub 2008 Jul 3.

Inflammation and endothelial dysfunction during aging: role of NF-kappaB.

Author information

1
Department of Physiology, New York Medical College, Valhalla, NY 10595, USA. anna_csiszar@nymc.edu

Abstract

One of the major conceptual advances in our understanding of the pathogenesis of age-associated cardiovascular diseases has been the insight that age-related oxidative stress may promote vascular inflammation even in the absence of traditional risk factors associated with atherogenesis (e.g., hypertension or metabolic diseases). In the present review we summarize recent experimental data suggesting that mitochondrial production of reactive oxygen species, innate immunity, the local TNF-alpha-converting enzyme (TACE)-TNF-alpha, and the renin-angiotensin system may underlie NF-kappaB induction and endothelial activation in aged arteries. The theme that emerges from this review is that multiple proinflammatory pathways converge on NF-kappaB in the aged arterial wall, and that the transcriptional activity of NF-kappaB is regulated by multiple nuclear factors during aging, including nuclear enzymes poly(ADP-ribose) polymerase (PARP-1) and SIRT-1. We also discuss the possibility that nucleophosmin (NPM or nuclear phosphoprotein B23), a known modulator of the cellular oxidative stress response, may also regulate NF-kappaB activity in endothelial cells.

PMID:
18599677
PMCID:
PMC2576023
DOI:
10.1152/japplphysiol.90470.2008
[Indexed for MEDLINE]
Free PMC Article
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