Protective effect of augmenter of liver regeneration on hydrogen peroxide-induced apoptosis in SH-SY5Y human neuroblastoma cells

Polimeno Lorenzo, Pesetti Barbara, Lisowsky Thomas, Iannone Florenzo, Resta Leonardo, Giorgio Floriana, Mallamaci Rosanna, Buttiglione Maura, Santovito Daniela, Vitiello Francesco, Mancini M. Elisabetta, Francavilla Antonio

Research output: Contribution to journalArticle

Abstract

Background: Hydrogen peroxide, as other reactive oxygen species (ROS) produced during redox processes, induces lipid membrane peroxidation and protein degeneration causing cell apoptosis. ROS are recently considered as messengers in cell signalling processes, which, through reversible protein disulphide bridges formation, activate regulatory factors of cell proliferation and apoptosis. Disulphide bridges formation is catalysed by sulphydryl oxidase enzymes. Aim: The neuroprotective effect of ALR protein (Alrp), a sulphydryl oxidase enzyme, on H2O2-induced apoptosis in SH-SY5Y cells has been evaluated. Methods: Cell viability, flow cytometric evaluation of apoptotic cells, fluorescent changes of nuclear morphology, immunocytochemistry Alrp detection, Western blot evaluation of mitochondrial cyt c release and mitochondrial swelling were determined. Results: Alrp prevents the H2O2-induced cell viability loss, apoptotic cell death and mitochondrial swelling in SH-SY5Y cells in culture. Conclusions: The data demonstrate that Alrp improves SH-SY5Y cells survival in H2O2-induced apoptosis. It is speculated that this effect could be related to the Alrp enzymatic activity.

Original languageEnglish
Pages (from-to)865-875
Number of pages11
JournalFree Radical Research
Volume43
Issue number9
DOIs
Publication statusPublished - 2009

    Fingerprint

Keywords

  • Alrp
  • Neuronal apoptosis
  • Oxidative stress

ASJC Scopus subject areas

  • Biochemistry

Cite this

Lorenzo, P., Barbara, P., Thomas, L., Florenzo, I., Leonardo, R., Floriana, G., Rosanna, M., Maura, B., Daniela, S., Francesco, V., Elisabetta, M. M., & Antonio, F. (2009). Protective effect of augmenter of liver regeneration on hydrogen peroxide-induced apoptosis in SH-SY5Y human neuroblastoma cells. Free Radical Research, 43(9), 865-875. https://doi.org/10.1080/10715760903100125