Targeting dopamine D3 and serotonin 5-HT1A and 5-HT2A receptors for developing effective antipsychotics: Synthesis, biological characterization, and behavioral studies

Margherita Brindisi, Stefania Butini, Silvia Franceschini, Simone Brogi, Francesco Trotta, Sindu Ros, Alfredo Cagnotto, Mario Salmona, Alice Casagni, Marco Andreassi, Simona Saponara, Beatrice Gorelli, Pia Weikop, Jens D. Mikkelsen, Jorgen Scheel-Kruger, Karin Sandager-Nielsen, Ettore Novellino, Giuseppe Campiani, Sandra Gemma

Research output: Contribution to journalArticle

Abstract

Combination of dopamine D3 antagonism, serotonin 5-HT1A partial agonism, and antagonism at 5-HT2A leads to a novel approach to potent atypical antipsychotics. Exploitation of the original structure-activity relationships resulted in the identification of safe and effective antipsychotics devoid of extrapyramidal symptoms liability, sedation, and catalepsy. The potential atypical antipsychotic 5bb was selected for further pharmacological investigation. The distribution of c-fos positive cells in the ventral striatum confirmed the atypical antipsychotic profile of 5bb in agreement with behavioral rodent studies. 5bb administered orally demonstrated a biphasic effect on the MK801-induced hyperactivity at dose levels not able to induce sedation, catalepsy, or learning impairment in passive avoidance. In microdialysis studies, 5bb increased the dopamine efflux in the medial prefrontal cortex. Thus, 5bb represents a valuable lead for the development of atypical antipsychotics endowed with a unique pharmacological profile for addressing negative symptoms and cognitive deficits in schizophrenia.

Original languageEnglish
Pages (from-to)9578-9597
Number of pages20
JournalJournal of Medicinal Chemistry
Volume57
Issue number22
DOIs
Publication statusPublished - Nov 26 2014

ASJC Scopus subject areas

  • Molecular Medicine
  • Drug Discovery
  • Medicine(all)

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    Brindisi, M., Butini, S., Franceschini, S., Brogi, S., Trotta, F., Ros, S., Cagnotto, A., Salmona, M., Casagni, A., Andreassi, M., Saponara, S., Gorelli, B., Weikop, P., Mikkelsen, J. D., Scheel-Kruger, J., Sandager-Nielsen, K., Novellino, E., Campiani, G., & Gemma, S. (2014). Targeting dopamine D3 and serotonin 5-HT1A and 5-HT2A receptors for developing effective antipsychotics: Synthesis, biological characterization, and behavioral studies. Journal of Medicinal Chemistry, 57(22), 9578-9597. https://doi.org/10.1021/jm501119j