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- W2062308045 abstract "Abstract The 94 kDa glucose‐regulated protein (GRP94), the endoplasmic reticulum (ER) resident molecular chaperone, has a role in cell death due to endoplasmic reticulum stress (ER stress). Here, we report that expression of GRP94 was increased in human neuroblastoma cells (SH‐SY5Y (SY5Y) cells) exposed to hypoxia/reoxygenation (H/R). H/R mediated death of SY5Y cells was associated with the activation of major cysteine proteases, caspase‐3 and calpain, along with an elevated intracellular calcium concentration. Pretreatment with adenovirus‐mediated antisense GRP94 (AdGRP94AS) led to reduced viability of SY5Y cells after being subjected to H/R compared with wild‐type cells or cells with adenovirus‐mediated overexpression of GRP94 (AdGRP94S). These results indicate that suppression of GRP94 is associated with accelerated apoptosis and that expression of GRP94 (as a stress protein) suppresses oxidative stress‐mediated neuronal death and stabilizes calcium homeostasis in the ER. We also used gerbils with transient forebrain ischemia to study the role of GRP94 in vivo . Neurons with adenovirus‐mediated overexpression of GRP94 were resistant to ischemic damage. These results confirmed that GRP94 could suppress ischemic injury to neurons, suggesting that gene transfer of GRP94 into the brain may have therapeutic potential in the treatment of cerebrovascular disease." @default.
- W2062308045 created "2016-06-24" @default.
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- W2062308045 date "2003-08-01" @default.
- W2062308045 modified "2023-10-17" @default.
- W2062308045 title "GRP94 (94 kDa glucose-regulated protein) suppresses ischemic neuronal cell death against ischemia/reperfusion injury" @default.
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- W2062308045 doi "https://doi.org/10.1046/j.1460-9568.2003.02818.x" @default.
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