title: Beneficial effects of deferoxamine against astrocyte death induced by modified oxygen glucose deprivation.
abstract: The iron chelator deferoxamine (DFX) is efficacious in ameliorating hypoxic-ischemic brain injury. However, the effect of DFX worked in the ischemic and the mechanism is still unclear. Recent studies have shown that apoptosis and oncosis may be the pathways of cell death accountable for astrocytic death in the ischemic core. The effect of DFX on primary cultures of rat astrocytes later subjected to modified oxygen and glucose deprivation (OGD), which can mimic the circumstances in the ischemic core, was evaluated in this study. DFX pretreatment significantly suppressed cell death and ameliorated the cellular swelling of astrocytes in the ischemic core, especially after 3h of OGD. The release of lactate dehydrogenase (LDH) and the production of reactive oxygen species (ROS) were reduced by DFX pretreatment. DFX reduced the expression level of active caspase-3 and increased the expression level of HIF-1α in astrocytes induced by 3h of OGD, but had no effect on aquaporin-4 (AQP4) expression. We conclude that DFX suppresses both apoptosis and oncosis in astrocytes in an in vitro model of the ischemic core.
authors.affiliation: Department of Neurology, Second Clinical College, Jinan University, Shenzhen, 518020, China.; Research Centre for Neural Engineering, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.affiliation: Department of Neurology, Second Clinical College, Jinan University, Shenzhen, 518020, China.; Research Centre for Neural Engineering, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
authors.forename: Qiaoying
authors.initials: Q
authors.lastname: Huang
authors.affiliation: Department of Neurology, Second Clinical College, Jinan University, Shenzhen, 518020, China.
authors.forename: Liangyu
authors.initials: L
authors.lastname: Zou
authors.affiliation: Department of Neurology, Second Clinical College, Jinan University, Shenzhen, 518020, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Cao
authors.affiliation: Department of Neurology, Second Clinical College, Jinan University, Shenzhen, 518020, China.
authors.forename: Heming
authors.initials: H
authors.lastname: Huang
authors.affiliation: Department of Neurology, Second Clinical College, Jinan University, Shenzhen, 518020, China.. Electronic address: chuxiaofan@hotmail.com.
authors.forename: Xiaofan
authors.initials: X
authors.lastname: Chu
mesh_terms: D000818:Animals; D051401:Aquaporin 4 / Q000378:metabolism; D001253:Astrocytes / Q000187:drug effects* / Q000473:pathology / Q000502:physiology; D053148:Caspase 3 / Q000378:metabolism; D016923:Cell Death / Q000187:drug effects* / Q000502:physiology; D015687:Cell Hypoxia / Q000187:drug effects* / Q000502:physiology; D048430:Cell Shape / Q000187:drug effects / Q000502:physiology; D002478:Cells, Cultured; D003676:Deferoxamine / Q000494:pharmacology*; D005947:Glucose / Q000172:deficiency*; D006624:Hippocampus / Q000187:drug effects / Q000473:pathology / Q000503:physiopathology; D051795:Hypoxia-Inducible Factor 1, alpha Subunit / Q000378:metabolism; D007770:L-Lactate Dehydrogenase / Q000378:metabolism; D008854:Microscopy, Electron; D018696:Neuroprotective Agents / Q000494:pharmacology*; D017207:Rats, Sprague-Dawley; D017382:Reactive Oxygen Species / Q000378:metabolism; D013997:Time Factors
chemical_list: C496032:Aqp4 protein, rat; D051401:Aquaporin 4; C497444:Hif1a protein, rat; D051795:Hypoxia-Inducible Factor 1, alpha Subunit; D018696:Neuroprotective Agents; D017382:Reactive Oxygen Species; D007770:L-Lactate Dehydrogenase; C505410:Casp3 protein, rat; D053148:Caspase 3; D005947:Glucose; D003676:Deferoxamine
keywords: Astrocyte; DFX; Oncosis; Oxygen and glucose deprivation