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- W2023682415 abstract "Dysregulation of Ca2+ signaling following oxidative stress is an important pathophysiological mechanism of many chronic neurodegenerative disorders, including Alzheimer's disease, age-related macular degeneration, glaucomatous and diabetic retinopathies. However, the underlying mechanisms of disturbed intracellular Ca2+ signaling remain largely unknown. We here describe a novel mechanism for increased intracellular Ca2+ release following oxidative stress in a neuronal cell line. Using an experimental approach that included quantitative polymerase chain reaction, quantitative immunoblotting, microfluorimetry and the optical imaging of intracellular Ca2+ release, we show that sub-lethal tert-butyl hydroperoxide-mediated oxidative stress result in a selective up-regulation of type-2 inositol-1,4,5,-trisphophate receptors. This oxidative stress mediated change was detected both at the transcriptional and translational level and functionally resulted in increased Ca2+ release into the nucleoplasm from the membranes of the nuclear envelope at a given receptor-specific stimulus. Our data describe a novel source of Ca2+ dysregulation induced by oxidative stress with potential relevance for differential subcellular Ca2+ signaling specifically within the nucleus and the development of novel neuroprotective strategies in neurodegenerative disorders." @default.
- W2023682415 created "2016-06-24" @default.
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- W2023682415 date "2011-02-01" @default.
- W2023682415 modified "2023-09-27" @default.
- W2023682415 title "Novel mechanism of increased Ca2+ release following oxidative stress in neuronal cells involves type 2 inositol-1,4,5-trisphosphate receptors" @default.
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- W2023682415 doi "https://doi.org/10.1016/j.neuroscience.2010.11.010" @default.
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