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- W2068607362 abstract "Abstract Our purpose was to investigate in human neurons the neuroprotective pathways induced by Fractalkine (FKN) against glutamate receptor‐induced excitotoxicity. CX 3 CR1 and FKN are expressed constitutively in the tested human embryonic primary neurons and SK‐N‐SH, a human neuroblastoma cell line. Microfluorometry assay demonstrated that CX 3 CR1 was functional in 44% of primary neurons and in 70% of SK‐N‐SH. Fractalkine induced ERK1/2 phosphorylation within 1 min and Akt phosphorylation after 10 min, and both phosphorylation decreased after 20 min. No p38 and SAPK/JNK activation was observed after FKN treatment. Application of FKN triggered a 53% reduction of the NMDA‐induced neuronal calcium influx, which was insensitive to pertussis toxin and LY294002 an inhibitor of Akt pathway, but abolished by PD98059, an ERK1/2 pathway inhibitor. Moreover, FKN significantly reduced neuronal NMDA‐induced apoptosis, which was pertussis toxin insensitive and abolished in presence of PD98059 and LY294002. In conclusion, FKN protected human neurons from NMDA‐mediated excitotoxicity in at least two ways with different kinetics: (i) an early ERK1/2 activation which reduced NMDA‐mediated calcium flux; and (ii), a late Akt activation associated with the previously induced ERK1/2 activation." @default.
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- W2068607362 date "2004-12-01" @default.
- W2068607362 modified "2023-10-15" @default.
- W2068607362 title "Fractalkine reduces N-methyl-d-aspartate-induced calcium flux and apoptosis in human neurons through extracellular signal-regulated kinase activation" @default.
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- W2068607362 doi "https://doi.org/10.1111/j.1460-9568.2004.03800.x" @default.
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