Cited by 11Advanced Glycation End Products researchSkin Protection and AgingRedox biology and oxidative stress

Age-related NADH oxidase (arNOX)-catalyzed oxidative damage to skin proteins

Meadows, Christiaan, Morré, D. James, Morré, Dorothy M., Draelos, Zoe D., Kern, Dale·2014·Archives of Dermatological Research

Abstract

Age-related NADH oxidase (arNOX), a cell surface-located hydroquinone oxidase capable of superoxide generation, appears at age 30 and increases with age thereafter. The ectodomain of arNOX is shed from the cell surface into body fluids including sera and saliva where its activity was measured spectrophotometrically using a reduction of ferricytochrome c as a measure of superoxide generation. The autofluorescence of advanced glycation end products correlates with epidermal arNOX activity as well. To demonstrate protein cross-linking, a fluorescence-labeled analog of tyrosine, tyramine, that would react with proteins carrying arNOX-generated tyrosyl radicals was used. The assay demonstrated the potential for arNOX-induced oxidative damage (dityrosine formation) to human collagen and elastin and to other surface proteins of intact human embryo fibroblasts and frozen sections from epidermal punch biopsies. The findings support a role for arNOX as a major source of oxidative damage leading to cross-linking of skin proteins.

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Crossref · 10.1007/s00403-014-1472-8

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Authors
Meadows, C., Morré, D. J., Morré, D. M., Draelos, Z. D., & Kern, D.
Affiliations
  • Purdue University West Lafayette (US)
  • Nu Skin (United States) (US)
Corresponding author
Morré, D. James
Venue
Archives of Dermatological Research
Published
2014-06-07
Volume
306
Issue
7
Pages
645-652
ISSN
  • 0003-9187 (ISSN-L)
  • 0340-3696
  • 1432-069X
OpenAlex
W2039383508
Cited by
11
References
29
Citations by year
2020: 1 · 2019: 1 · 2018: 2 · 2017: 1 · 2016: 3 · 2015: 3
FWCI
1.61
Type
journal article
Language
en
Open access
closed
Locations
  • Archives of Dermatological Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Purdue University
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
oxidative damage, skin proteins, protein cross-linking, dityrosine formation, tyrosyl radical, superoxide production, advanced glycation end products, collagen, elastin, human embryo fibroblasts, aging, skin aging
MeSH terms
Adult, Age Factors, Aging, Biopsy, Needle, Collagen, Elastin, Female, Humans, Male, Melanins, Middle Aged, NADH, NADPH Oxidoreductases, Oxidation-Reduction, Saliva, Skin, Superoxides, Tissue Preservation, Glycation End Products, Advanced, Protein Structure, Tertiary, Oxidative Stress, Serum, Cytochromes c, Young Adult

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