[en] Clozapine has a more marked affinity for the recently cloned dopamine D4 receptor than for the dopamine D2 receptor. In the search for a selective ligand for the dopamine D4 receptor, useful as a pharmacological tool or as a potent atypical antipsychotic, a pyridobenzodiazepine derivative bioisoster of clozapine, JL 18, 8-methyl-6-(4-methyl-1-piperazinyl)-11H-pyrido [2,3-b][1,4]benzodiazepine, was found to be the most dopamine D4-selective ligand belonging to the diarylazepine class. Indeed, JL 18 binds to the dopamine D4 receptor with affinity up to 25 times superior to that for the dopamine D2 receptor and presents reduced affinities for other receptors.
Disciplines :
Pharmacie, pharmacologie & toxicologie
Auteur, co-auteur :
Liégeois, Jean-François ; Université de Liège - ULiège > Département de pharmacie > Chimie pharmaceutique
Bruhwyler, J.
Damas, Jacques ; Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Département des sciences biomédicales et précliniques
Rogister, F.
Masereel, B.
Geczy, J.
Delarge, J.
Langue du document :
Anglais
Titre :
Modulation of the Clozapine Structure Increases Its Selectivity for the Dopamine D4 Receptor
Bruhwyler, Liégeois, Chleide, Rogister, Damas, Delarge, Mercier (1992) Comparative study of typical neuroleptics, clozapine and newly synthesized clozapine-analogues: correlation between neurochemistry and behaviour. Behav. Pharmacol. 3:567.
Lahti, Evans, Stratman, Figur (1993) Dopamine D4 versus D2 receptors selectivity of dopamine receptor antagonists: possible therapeutic implications. Eur. J. Pharmacol. 236:483.
Liégeois, Bruhwyler, Damas, Nguyen, Chleide, Mercier, Rogister, Delarge (1993) New pyridobenzodiazepine derivatives as potential antipsychotics synthesis and neurochemical study. Journal of Medicinal Chemistry 36:2107.
Seeman, Van Tol (1993) Dopamine D4 receptors bind inactive (+)-aporphines, suggesting neuroleptic role. Sulpiride not stereoselective , Eur. J. Pharmacol.; 233:173.
Seeman, Van Tol (1994) Dopamine receptor pharmacology. Trends Pharmacol. Sci. 15:264.
Seeman, Guan, Van Tol (1993) Dopamine D4 receptors elevated in schizophrenia. Nature 365:441.
Van Tol, Bunzow, Guan, Sunahara, Seeman, Niznik, Civelli (1991) Cloning of the gene for a human dopamine D4 receptor with high affinity for the antipsychotic clozapine. Nature 350:610.