Anxiolytic-like Effects of N,N-Dialkyl-2-phenylindol-3-ylglyoxylamides by Modulation of Translocator Protein Promoting Neurosteroid Biosynthesis
摘要:
Novel N,N-disubstituted indol-3-ylglyoxylamides (1-56), bearing different combinations of substituents R-1-R-5, were synthesized and evaluated as ligands of the translocator protein (TSPO), the 18 kDa protein representing the minimal functional unit of the "peripheral-type benzodiazepine receptor" (PBR). Most of the new compounds showed a nanomolar/subnanomolar affinity for TSPO and stimulated steroid biosynthesis in rat C6 glioma cells with a potency similar to or higher than that of classic TSPO ligands such as PK 11195. Moreover, when evaluated in vivo by means of the elevated-plus-maze (EPM) paradigm in the rat, compound 32. the best-performing derivative in terms of TSPO affinity and pregnenolone production, showed clear anxiolytic effects. The results of this study suggested that the novel N, N-di substituted indol-3y1glyoxylani ides may represent a promising class of compounds potentially suited for the treatment of anxiety disorders.
Anxiolytic-like Effects of N,N-Dialkyl-2-phenylindol-3-ylglyoxylamides by Modulation of Translocator Protein Promoting Neurosteroid Biosynthesis
摘要:
Novel N,N-disubstituted indol-3-ylglyoxylamides (1-56), bearing different combinations of substituents R-1-R-5, were synthesized and evaluated as ligands of the translocator protein (TSPO), the 18 kDa protein representing the minimal functional unit of the "peripheral-type benzodiazepine receptor" (PBR). Most of the new compounds showed a nanomolar/subnanomolar affinity for TSPO and stimulated steroid biosynthesis in rat C6 glioma cells with a potency similar to or higher than that of classic TSPO ligands such as PK 11195. Moreover, when evaluated in vivo by means of the elevated-plus-maze (EPM) paradigm in the rat, compound 32. the best-performing derivative in terms of TSPO affinity and pregnenolone production, showed clear anxiolytic effects. The results of this study suggested that the novel N, N-di substituted indol-3y1glyoxylani ides may represent a promising class of compounds potentially suited for the treatment of anxiety disorders.
Anxiolytic-like Effects of <i>N</i>,<i>N</i>-Dialkyl-2-phenylindol-3-ylglyoxylamides by Modulation of Translocator Protein Promoting Neurosteroid Biosynthesis
作者:Federico Da Settimo、Francesca Simorini、Sabrina Taliani、Concettina La Motta、Anna Maria Marini、Silvia Salerno、Marusca Bellandi、Ettore Novellino、Giovanni Greco、Barbara Cosimelli、Eleonora Da Pozzo、Barbara Costa、Nicola Simola、Micaela Morelli、Claudia Martini
DOI:10.1021/jm8003224
日期:2008.9.25
Novel N,N-disubstituted indol-3-ylglyoxylamides (1-56), bearing different combinations of substituents R-1-R-5, were synthesized and evaluated as ligands of the translocator protein (TSPO), the 18 kDa protein representing the minimal functional unit of the "peripheral-type benzodiazepine receptor" (PBR). Most of the new compounds showed a nanomolar/subnanomolar affinity for TSPO and stimulated steroid biosynthesis in rat C6 glioma cells with a potency similar to or higher than that of classic TSPO ligands such as PK 11195. Moreover, when evaluated in vivo by means of the elevated-plus-maze (EPM) paradigm in the rat, compound 32. the best-performing derivative in terms of TSPO affinity and pregnenolone production, showed clear anxiolytic effects. The results of this study suggested that the novel N, N-di substituted indol-3y1glyoxylani ides may represent a promising class of compounds potentially suited for the treatment of anxiety disorders.