Psychopharmacology

, Volume 103, Issue 2, pp 150–153 | Cite as

11C-SCH 39166, a selective ligand for visualization of dopamine-D1 receptor binding in the monkey brain using PET

  • Göran Sedvall
  • Lars Farde
  • Allen Barnett
  • Håkan Hall
  • Christer Halldin
Original Investigations

Abstract

The new selective D1-dopamine receptor antagonist SCH 39166 was labelled with the positron emitting isotope11C and used as ligand for visualization of dopamine-D1 receptor binding in Cynomolgus monkeys by PET. After intravenous administration of the ligand a marked uptake of radioactivity was recorded in the D1-dopamine receptor-rich striatum and neocortex but not in the dopamine receptor-poor cerebellum. The uptake of radioactivity in striatum and neocortex was markedly displaced after the intravenous injection of a high dose of the D1-dopamine receptor antagonist SCH 23390 but not after the 5-HT2 receptor antagonist ketanserine.11C-SCH 39166 should be a useful tool to explore D1-dopamine receptor characteristics in the living human brain by PET.

Key words

D1-dopamine receptors Positron emission tomography Monkey brain Dopamine receptor antagonist Antipsychotic drugs 

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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • Göran Sedvall
    • 1
  • Lars Farde
    • 1
  • Allen Barnett
    • 2
  • Håkan Hall
    • 1
  • Christer Halldin
    • 1
  1. 1.Department of Psychiatry and PsychologyKarolinska InstituteStockholmSweden
  2. 2.Schering-Plough CorporationBloomfieldUSA

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