New Dopamine D2 Receptor Agonist, [3H]MCL-536, for Detecting Dopamine D2high Receptors in Vivo.
New Dopamine D2 Receptor Agonist, [3H]MCL-536, for Detecting Dopamine D2high Receptors in Vivo.
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新型多巴胺 D2 受体激动剂 [3H]MCL-536,用于检测体内多巴胺 D2high 受体。
DOI:
10.1021/acschemneuro.8b00096
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发表时间:
2018
影响因子:
5
通讯作者:
Neumeyer,JohnL
中科院分区:
文献类型:
--
作者:
Subburaju,Sivan;Sromek,AnnaW;Seeman,Philip;Neumeyer,JohnL
Increases in the D2 receptor high affinity state are associated with certain neurological disorders. We synthesized and characterized the high-affinity D2high ligand [3H]MCL-536 in competition binding against the D2/3 agonistR-(−)-N-n-propylnorapomorphine (NPA) and the D2/3 antagonist raclopride. The total binding of [3H]MCL-536 (minus that in the presence of 100 nM NPA) was measured by saturation binding in CHO cells expressing human D2long; the data yielded separable, nonsaturable nonspecific, and saturable specific components. The former represents an aporphine site common to NPA and [3H]MCL-536. The latter indicated specific binding to the total D2 receptors (both high and low-affinity states). [3H]MCL-536 had aKdof 0.8 nM. In competition binding, NPA had aKiof 0.16 nM, and raclopride had aKiof 0.9 nM. Co-incubation with guanylylimidodiphosphate abolished binding to D2high. This unique profile makes radiolabeled MCL-536 a versatile tool for diagnostics and therapeutics, and may quantify D2high sites in schizophrenia and PD patients in vivo.
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影响因子:
3.6
作者:
DeLean,A;Kilpatrick,BF;Caron,MG
通讯作者:
Caron,MG
影响因子:
4.7
作者:
Dimitris Grigoriadis;P. Seeman
通讯作者:
P. Seeman
影响因子:
7.3
作者:
K. Hidaka;S. Tada;M. Matsumoto;J. Ohmori;Y. Tasaki;T. Nomura;S. Usuda;T. Yamaguchi
通讯作者:
T. Yamaguchi
DOI:
10.1073/pnas.0409766102
发表时间:
2005-03-01
影响因子:
11.1
作者:
Seeman, P;Weinshenker, D;Tallerico, T
通讯作者:
Tallerico, T
影响因子:
1.8
作者:
Sromek,AnnaW;Zhang,Shaohui;Akurathi,Vamsidhar;Packard,AlanB;Li,Wei;Alagille,David;Morley,ThomasJ;Baldwin,Ronald;Tamagnan,Gilles;Neumeyer,JohnL
通讯作者:
Neumeyer,JohnL