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    Br J Pharmacol. 1999 May;127(1):139-44.

    Effect of the neuroprotective compound SR57746A on nerve growth factor synthesis in cultured astrocytes from neonatal rat cortex.

    Labie C, Lafon C, Marmouget C, Saubusse P, Fournier J, Keane PE, Le Fur G, Soubrié P.

    Source

    Department of Neuropsychiatry Research, Sanofi Recherche, Toulouse, France. christophe.labie@sanofi.com

    Abstract

    The neurotrophic factor promoting activity of the neuroprotective compound SR57746A was evaluated in primary cultures of neonatal rat cortical astrocytes by studying the synthesis of nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF). A concentration- and time-dependent increase of nerve growth factor mRNA was induced by SR57746A (10 nM-1 microM). In these astrocytes, BDNF mRNA contents were increased to a significant but smaller extent, and beta-actin mRNA showed no variation. SR57746A (1 microM) induced increases of both de novo protein translation after 6 h of incubation and NGF release into the extracellular medium after 6-24 h. These effects were preceded by a transient augmentation of junB, c-fos and c-jun mRNA contents. These increases of AP-1 family mRNA were associated with increased nuclear AP-1 binding activity. The results show that SR57746A can increase the synthesis and release of NGF in rat cortical astrocytes. Such effects may contribute to the drug's previously described neuroprotective effects.

    PMID:
    10369466
    [PubMed - indexed for MEDLINE]
    PMCID: PMC1566010
    Free PMC Article

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