Involvement of 4-Hydroxy-2-Nonenal in Pollution-Induced Skin Damage
May 2019
in “
BioFactors
”
Studysummary This review discusses the impact of air pollution on skin health and suggests that targeting oxidative stress products like HNE could be a new strategy for treating related skin conditions.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
The review article from May 14, 2019, discussed the impact of environmental pollutants such as ozone (O3), particulate matter (PM), and cigarette smoke (CS) on skin health. These pollutants were found to disrupt redox homeostasis, leading to increased production of reactive oxygen species and oxidative stress. This oxidative stress results in the production of 4-hydroxy-2-nonenal (HNE), a byproduct of the oxidation of ω-6 polyunsaturated fatty acids. HNE, a highly reactive compound, can form adducts with cellular proteins and DNA, and can regulate cell signaling pathways and the activity of redox-sensitive transcription factors. Increased levels of HNE in the skin due to pollutant exposure were linked to accelerated skin aging and exacerbated skin inflammatory conditions. The authors suggested that targeting HNE formation could be a novel approach for topical applications in cosmeceuticals.
