6533b7d3fe1ef96bd125ff9b
RESEARCH PRODUCT
Neuroglobin and cytoglobin overexpression protects human SH-SY5Y neuroblastoma cells against oxidative stress-induced cell death
Dirk R. Van BockstaeleLiesbet ThijsMarc LenjouTilmann LaufsLuc MoensSylvia DewildeElke FordelWim Martinetsubject
ParaquatProgrammed cell deathTime FactorsBlotting WesternGene ExpressionNeuroglobinNerve Tissue ProteinsBiologymedicine.disease_causeNeuroblastomaCell Line TumormedicineHumansGlobinCell DeathDose-Response Relationship DrugHerbicidesGeneral NeuroscienceCytoglobinCytoglobinHydrogen PeroxideTransfectionFlow CytometryOxidantsMolecular biologyGlobinsOxidative StressApoptosisCell cultureNeuroglobinOxidative stressdescription
Although reactive oxygen species (ROS) at physiological concentrations are required for normal cell function, excessive production of ROS is detrimental to cells. Neuroglobin and cytoglobin are two globins, whose functions are still a matter of debate. A potential role in the detoxification of ROS is suggested. The influence of neuroglobin and cytoglobin on cell death after oxidative stress in human neuroblastoma SH-SY5Y cells was evaluated. Exposure of SH-SY5Y cells to paraquat or H(2)O(2) resulted in a concentration- and time-dependent induction of apoptotic and necrotic cell death. H(2)O(2) was 16 times more potent to induce cell death as compared to paraquat. SH-SY5Y cells transfected with plasmid DNA containing the neuroglobin or cytoglobin sequence showed enhanced survival after exposure to 300 microM H(2)O(2) for 24h as compared to untransfected controls. This finding suggests that neuroglobin and cytoglobin protect SH-SY5Y cells against oxidative stress-induced cell death.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-06-14 | Neuroscience letters |