title: CJ-1639: A Potent and Highly Selective Dopamine D3 Receptor Full Agonist.
abstract: We have identified several ligands with high binding affinities to the dopamine D3 receptor and excellent selectivity over the D2 and D1 receptors. CJ-1639 (17) binds to the D3 receptor with a K(i) value of 0.50 nM and displays a selectivity of >5,000 times over D2 and D1 receptors in binding assays using dopamine receptors expressed in the native rat brain tissues. CJ-1639 binds to human D3 receptor with a K(i) value of 3.61 nM and displays over >1000-fold selectivity over human D1 and D2 receptors. CJ-1639 is active at 0.01 mg/kg at the dopamine D3 receptor in the rat and only starts to show a modest D2 activity at doses as high as 10 mg/kg. CJ-1639 is the most potent and selective D3 full agonist reported to date.
authors: Department of Internal Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, Michigan 48109, USA.
authors: Jianyong
authors: J
authors: Chen
authors: Gregory T
authors: GT
authors: Collins
authors: Beth
authors: B
authors: Levant
authors: James
authors: J
authors: Woods
authors: Jeffrey R
authors: JR
authors: Deschamps
authors: Shaomeng
authors: S
authors: Wang