DNA damage caused by lipid peroxidation products

• Autorzy: Luczaj W , Skrzydlewska E.
• Języki publikacji: EN

Abstrakty

EN

Lipid peroxidation is a process involving the oxidation of polyunsaturated fatty acids (PUFAs), which are basic components of biological membranes. Reactive electrophilic compounds are formed during lipid peroxidation, mainly α,β-unsaturated aldehydes. These compounds yield a number of adducts with DNA. Among them, propeno and substituted propano adducts of deoxyguanosine with malondialdehyde (MDA), acrolein, crotonaldehyde and etheno adducts, resulting from the reactions of DNA bases with epoxy aldehydes, are a very important group of adducts. The epoxy aldehydes are more reactive towards DNA than the parent unsaturated aldehydes. The compounds resulting from lipid peroxidation mostly react with DNA showing both genotoxic and mutagenic action; among them, 4-hydroxynonenal is the most genotoxic, while MDA is the most mutagenic. DNA damage caused by the adducts of lipid peroxidation products with DNA can be removed by the repairing action of glycosylases. The formed adducts have been hitherto analyzed using the IPPA (Imunopurification-32P-postlabelling assay) method and via gas chromatography/electron capture negtive chemical ionization/mass spectrometry (GC/EC NCI/MS). A combination of liquid chromatography with electrospray tandem mass spectrometry (LC/ES-MSMS) with labelled inner standard has mainly been used in recent years.

Słowa kluczowe

EN

oxidation; unsaturated aldehyde; polyunsaturated fatty acid; DNA damage; product; lipid peroxidation

• Wydawca: -
• Czasopismo: Cellular and Molecular Biology Letters
• Rocznik: 2003
• Tom: 08
• Numer: 2
• Opis fizyczny: p.391-413,fig.

Twórcy

autor

Luczaj W

• Medical Academy of Bialystok, Mickiewicza 2A, P.O.Box 14, 15-230 Bialystok 8, Poland

autor

Skrzydlewska E.

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