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Protective effect of lycopene on lipid peroxidation and oxidative DNA damage in cell culture. 2000

H R Matos, and P Di Mascio, and M H Medeiros
Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, SP, Brazil.

A high incidence of cancer has been correlated with chronic iron overload, and carotenoids are of interest as possible anticarcinogens. We have investigated the effect of lycopene on lipid peroxidation and on the formation of 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodGuo) in CV1-P monkey cells exposed to ferric nitrilotriacetate (Fe-NTA) plus ascorbate. Cells supplemented with lycopene (20 pmol/10(6) cells) showed a reduction of 86% in Fe-NTA/ascorbate-induced lipid peroxidation (TBARS). Levels of 8-oxodGuo rose from 1.59+/-0.09 residues/10(6) dGuo in the control cells to 14.02+/-0.41 residues/10(6) dGuo after incubation with (1:4 mM) Fe-NTA/ascorbate (40 microM). Lycopene supplementation decreased in 77% the 8-oxodGuo levels in Fe-NTA/ascorbate-treated cells. These results indicate that lycopene can protect mammalian cells against membrane and DNA damage and possibly play a protective role against tumor promotion associated with oxidative damage.

UI MeSH Term Description Entries
D009153 Mutagens Chemical agents that increase the rate of genetic mutation by interfering with the function of nucleic acids. A clastogen is a specific mutagen that causes breaks in chromosomes. Clastogen,Clastogens,Genotoxin,Genotoxins,Mutagen
D009571 Nitrilotriacetic Acid A derivative of acetic acid, N(CH2COOH)3. It is a complexing (sequestering) agent that forms stable complexes with Zn2+. (From Miall's Dictionary of Chemistry, 5th ed.) Aluminum Nitrilotriacetate,Dysprosium Nitrilotriacetate,Trisodium Nitrilotriacetate,Acid, Nitrilotriacetic,Nitrilotriacetate, Aluminum,Nitrilotriacetate, Dysprosium,Nitrilotriacetate, Trisodium
D002338 Carotenoids The general name for a group of fat-soluble pigments found in green, yellow, and leafy vegetables, and yellow fruits. They are aliphatic hydrocarbons containing 4 terpene subunits. Carotenes,Carotenoid,Tetraterpene Derivatives,Tetraterpenes,Carotene,Derivatives, Tetraterpene
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D003849 Deoxyguanosine A nucleoside consisting of the base guanine and the sugar deoxyribose.
D004249 DNA Damage Injuries to DNA that introduce deviations from its normal, intact structure and which may, if left unrepaired, result in a MUTATION or a block of DNA REPLICATION. These deviations may be caused by physical or chemical agents and occur by natural or unnatural, introduced circumstances. They include the introduction of illegitimate bases during replication or by deamination or other modification of bases; the loss of a base from the DNA backbone leaving an abasic site; single-strand breaks; double strand breaks; and intrastrand (PYRIMIDINE DIMERS) or interstrand crosslinking. Damage can often be repaired (DNA REPAIR). If the damage is extensive, it can induce APOPTOSIS. DNA Injury,DNA Lesion,DNA Lesions,Genotoxic Stress,Stress, Genotoxic,Injury, DNA,DNA Injuries
D005290 Ferric Compounds Inorganic or organic compounds containing trivalent iron. Compounds, Ferric
D000077276 Lycopene A carotenoid and red pigment produced by tomatoes, other red fruits and vegetables, and photosynthetic algae. It is a key intermediate in the biosynthesis of other carotenoids, and has antioxidant, anti-carcinogenic, radioprotective, and anti-inflammatory properties. All-trans-Lycopene,LYC-O-MATO,Lycopene, (13-cis)-isomer,Lycopene, (7-cis,7'-cis,9-cis,9'-cis)-isomer -,Lycopene, (cis)-isomer,Pro-Lycopene,Prolycopene,All trans Lycopene,LYC O MATO,LYCOMATO,Pro Lycopene
D000080242 8-Hydroxy-2'-Deoxyguanosine Common oxidized form of deoxyguanosine in which C-8 position of guanine base has a carbonyl group. 2'-Deoxy-7,8-Dihydro-8-Oxoguanosine,2'-Deoxy-8-Hydroxyguanosine,2'-Deoxy-8-Oxo-7,8-Dihydroguanosine,2'-Deoxy-8-Oxoguanosine,7,8-Dihydro-8-Oxo-2'-Deoxyguanosine,7-Hydro-8-Oxodeoxyguanosine,8-Hydroxydeoxyguanosine,8-Oxo-2'-Deoxyguanosine,8-Oxo-7,8-Dihydro-2'-Deoxyguanosine,8-Oxo-7,8-Dihydrodeoxyguanosine,8-Oxo-7-Hydrodeoxyguanosine,8-Oxo-Deoxyguanosine,8OHdG,8-OH-dG,8-oxo-dG,8-oxo-dGuo,8-oxodG,8-oxodGuo,2' Deoxy 7,8 Dihydro 8 Oxoguanosine,2' Deoxy 8 Hydroxyguanosine,2' Deoxy 8 Oxo 7,8 Dihydroguanosine,2' Deoxy 8 Oxoguanosine,7 Hydro 8 Oxodeoxyguanosine,7,8 Dihydro 8 Oxo 2' Deoxyguanosine,8 Hydroxy 2' Deoxyguanosine,8 Hydroxydeoxyguanosine,8 Oxo 2' Deoxyguanosine,8 Oxo 7 Hydrodeoxyguanosine,8 Oxo 7,8 Dihydro 2' Deoxyguanosine,8 Oxo 7,8 Dihydrodeoxyguanosine,8 Oxo Deoxyguanosine
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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