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- W2002606013 abstract "A secreted protein, lipocalin-2 (LCN2), has been previously shown to regulate a variety of cellular phenotypes such as cell death, migration, and morphology. The role of LCN2, however, appears to be different depending on the cellular context. Here, we investigated how LCN2 influences neuronal phenotypes by using primary cortical neuronal cell cultures and neuroblastoma cell lines as a model. When exposed to LCN2 protein, neurons and neuroblastoma cells were sensitized to cell death evoked by nitric oxide, oxidative stress, and tumor necrosis factor-α (TNF-α). A forced expression of lcn2 in glia enhanced neuronal cell death in cocultures of glia and neurons, indicating that both exogenous protein addition and endogenous expression of lcn2 give rise to similar results. Iron and BCL2-interacting mediator of cell death (BIM) protein were involved in LCN2-induced cell death sensitization, based on the studies using iron donor, chelator, siderophore, and short hairpin RNA (shRNA)-mediated knockdown of bim expression. Furthermore, cell migration assay and immunofluorescence microscopic observation revealed that LCN2 accelerated neuronal motility and process extension, suggesting multiple roles for LCN2 in the regulation of neuronal cell death, migration, and morphology." @default.
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- W2002606013 date "2011-10-31" @default.
- W2002606013 modified "2023-09-30" @default.
- W2002606013 title "Regulation by lipocalin-2 of neuronal cell death, migration, and morphology" @default.
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- W2002606013 doi "https://doi.org/10.1002/jnr.22779" @default.
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