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  3. On the role of 4-hydroxynonenal in health and disease

On the role of 4-hydroxynonenal in health and disease

  • Biochim Biophys Acta. 2015 May;1852(5):826-38. doi: 10.1016/j.bbadis.2015.01.015.
Miklós Csala 1,  Tamás Kardon 1,  Balázs Legeza 2,  Beáta Lizák 1,  József Mandl 1,  Éva Margittai 3,  Ferenc Puskás 4,  Péter Száraz 5,  Péter Szelényi 1,  Gábor Bánhegyi 6
Affiliations

Affiliations

  • 1 Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University Budapest, Budapest, Hungary.
  • 2 Department of Pediatrics, University of California, San Francisco, CA, USA.
  • 3 Institute of Human Physiology and Clinical Experimental Research, Semmelweis University, Budapest, Hungary.
  • 4 Department of Anesthesiology, University of Colorado, Denver, CO, USA.
  • 5 Department of Physiology, University of Toronto, Toronto, Ontario, Canada.
  • 6 Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University Budapest, Budapest, Hungary. Electronic address: banhegyi.gabor@med.semmelweis-univ.hu.
PMID: 25643868 DOI: 10.1016/j.bbadis.2015.01.015
Abstract

Polyunsaturated fatty acids are susceptible to peroxidation and they yield various degradation products, including the main α,β-unsaturated hydroxyalkenal, 4-hydroxy-2,3-trans-nonenal (HNE) in oxidative stress. Due to its high reactivity, HNE interacts with various macromolecules of the cell, and this general toxicity clearly contributes to a wide variety of pathological conditions. In addition, growing evidence suggests a more specific function of HNE in electrophilic signaling as a second messenger of oxidative/electrophilic stress. It can induce antioxidant defense mechanisms to restrain its own production and to enhance the cellular protection against oxidative stress. Moreover, HNE-mediated signaling can largely influence the fate of the cell through modulating major cellular processes, such as Autophagy, proliferation and Apoptosis. This review focuses on the molecular mechanisms underlying the signaling and regulatory functions of HNE. The role of HNE in the pathophysiology of Cancer, cardiovascular and neurodegenerative diseases is also discussed.

Keywords

4-Hydroxynonenal; Electrophilic stress; Lipid peroxidation; Nrf2; Proteostasis.

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