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Effect of the neuroprotective compound SR57746A on nerve growth factor synthesis in cultured astrocytes from neonatal rat cortex
Author(s) -
Labie Christophe,
Lafon Corinne,
Marmouget Corinne,
Saubusse Patricia,
Fournier Jacqueline,
Keane Peter E,
Le Fur Gérard,
Soubrié Philippe
Publication year - 1999
Publication title -
british journal of pharmacology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.432
H-Index - 211
eISSN - 1476-5381
pISSN - 0007-1188
DOI - 10.1038/sj.bjp.0702545
Subject(s) - nerve growth factor , neuroprotection , neurotrophic factors , brain derived neurotrophic factor , neurotrophin , medicine , endocrinology , astrocyte , biology , messenger rna , extracellular , pharmacology , chemistry , microbiology and biotechnology , central nervous system , biochemistry , receptor , gene
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 n M –1 μ M ). In these astrocytes, BDNF mRNA contents were increased to a significant but smaller extent, and β‐actin mRNA showed no variation. SR57746A (1 μ M ) 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.British Journal of Pharmacology (1999) 127 , 139–144; doi: 10.1038/sj.bjp.0702545