Abstract
Phenelzine, deprenyl, and antioxidants (SOD, catalase, ascorbate, or rutin) reduced the loss of cell viability in differentiated PC12 cells treated with 250 μM MPP+, whereas N-acetylcysteine and dithiothreitol did not inhibit cell death. Phenelzine reduced the condensation and fragmentation of nuclei caused by MPP+ in PC12 cells. Phenelzine and deprenyl prevented the MPP+-induced decrease in mitochondrial membrane potential, cytochrome c release, formation of reactive oxygen species, and depletion of GSH in PC12 cells. Phenelzine revealed a scavenging action on hydrogen peroxide and reduced the hydrogen peroxide–induced cell death in PC12 cells, whereas deprenyl did not depress the cytotoxic effect of hydrogen peroxide. Both compounds reduced the iron and EDTA-mediated degradation of 2-deoxy-d-ribose degradation. The results suggest that phenelzine attenuates the MPP+-induced viability loss in PC12 cells by reducing the alteration of mitochondrial membrane permeability that seems to be mediated by oxidative stress.
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Lee, C.S., Han, E.S. & Lee, W.B. Antioxidant Effect of Phenelzine on MPP+-Induced Cell Viability Loss in Differentiated PC12 Cells. Neurochem Res 28, 1833–1841 (2003). https://doi.org/10.1023/A:1026119708124
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DOI: https://doi.org/10.1023/A:1026119708124