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• W1637392459 abstract "Abstract Alzheimer’s disease (AD) is a common neurodegenerative disorder, but the initiating molecular processes contributing to neuronal death are not well understood. AD is associated with elevated soluble and aggregated forms of amyloid beta (Aβ) and with oxidative stress. Furthermore, there is increasing evidence for a detrimental role of iron in the pathogenic process. In this context, iron chelation by compounds such as 3‐hydroxypyridin‐4‐one, deferiprone (Ferriprox™) may have potential neuroprotective effects. We have evaluated the possible neuroprotective actions of deferiprone against a range of AD‐relevant insults including ferric iron, H 2 O 2 and Aβ in primary mouse cortical neurones. We have investigated the possible neuroprotective actions of deferiprone (1, 3, 10, 30 or 100 μM) in primary neuronal cultures following exposure to ferric iron [ferric nitrilotriacetate (FeNTA); 3 and 10 μM], H 2 O 2 (100 μM) or Aβ1–40 (3, 10 and 20 μM). Cultures were treated with deferiprone or vehicle either immediately or up to 6 h after the insult in a 24‐well plate format. In order to elucidate a possible neuroprotective action of deferiprone against Parkinson’s disease relevant insults another group of experiments were performed in the human neuroblastoma catecholaminergic SHSY‐5Y cell line. SHSY‐5Y cells were treated with MPP + iodide, the active metabolite of the dopaminergic neurotoxin MPTP and the neuroprotective actions of deferiprone evaluated. Cytotoxicity was assessed at 24 h by lactate dehydrogenase release, 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium‐bromide turnover (FeNTA and hydrogen peroxide) and morphometric analysis of cell viability by Hoechst 33324/propidium iodide (FeNTA, Aβ and MPP + ) or 6‐carboxyfluorescein diacetate and annexin V‐Cy3 (Aβ). The present study demonstrates that deferiprone protects against FeNTA, hydrogen peroxide, MPP + and Aβ1–40‐induced neuronal cell death in vitro , which is consistent with previous in vitro and in vivo studies that have demonstrated similar protection with other iron chelators." @default.
• W1637392459 created "2016-06-24" @default.
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• W1637392459 date "2008-03-10" @default.
• W1637392459 modified "2023-10-12" @default.
• W1637392459 title "Neuroprotective actions of deferiprone in cultured cortical neurones and SHSY-5Y cells" @default.
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• W1637392459 doi "https://doi.org/10.1111/j.1471-4159.2008.05332.x" @default.
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