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Apoptosis of HL60 cells by maltol was analyzed in relation to the maltol/iron-mediated generation of reactive oxygen species. Addition of maltol with FeSO 4 induced an apoptotic cell death as judged by flow cytometry analysis and DNA fragmentation on electrophoresis, but maltol or iron alone did not affect the cells. Treatment of HL60 cells with maltol/iron complex caused an effective inactivation...
Maltol (3-hydroxy-2-methyl-4-pyrone) produced reactive oxygen species as a complex with transition metals. Maltol/iron complex inactivated aconitase the most sensitive enzyme to oxidative stress. The inactivation of aconitase was iron-dependent, and prevented by TEMPOL, a scavenger of reactive oxygen species, suggesting that the maltol/iron-mediated generation of superoxide anion is responsible for...
The addition of aluminum-maltol complex to PC12D cells induced a time-dependent and concentration-dependent growth inhibition as well as cell death, whereas aluminum chloride or maltol alone did not affect the viability of PC12D cells. Apoptosis of differentiated PC12D cells was assessed by using terminal deoxynucleotidyltransferase-mediated 2′-deoxyuridine-5′-triphosphate nick end labeling (TUNEL)...
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