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抗精神病苯甲酰胺类药物氨磺必利和LB-102以外消旋体形式存在多药合用情况,对映体作用于D2和D3受体,而对映体作用于5-羟色胺受体。

Antipsychotic Benzamides Amisulpride and LB-102 Display Polypharmacy as Racemates, Enantiomers Engage Receptors D and D, while Enantiomers Engage 5-HT.

作者信息

Grattan Vincent, Vaino Andrew R, Prensky Zachary, Hixon Mark S

机构信息

LB Pharmaceuticals Inc., 575 Madison Avenue, New York, New York 10022, United States.

Mark S. Hixon Consulting LLC, 11273 Spitfire Road, San Diego, California 92126, United States.

出版信息

ACS Omega. 2019 Aug 15;4(9):14151-14154. doi: 10.1021/acsomega.9b02144. eCollection 2019 Aug 27.

DOI:10.1021/acsomega.9b02144
PMID:31497735
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6714530/
Abstract

Benzamide antipsychotics such as amisulpride are dosed as racemates though efficacy is assumed to be mediated through enantiomer binding to D receptors. At prescribed doses, the benzamides likely display polypharmacy since brain exposure should be sufficient to engage the 5-HT receptors, as well. Curiously, the studies herein reveal that racemic dosing is required to engage both targets since the D receptor has an almost 40-fold selectivity for the enantiomer, while the 5-HT receptor has greater than 50-fold preference for the enantiomer.

摘要

苯甲酰胺类抗精神病药物,如氨磺必利,是以消旋体形式给药的,尽管其疗效被认为是通过对映体与D受体结合来介导的。在规定剂量下,苯甲酰胺类药物可能会表现出多药合用的情况,因为脑部暴露量应该足以同时作用于5-HT受体。奇怪的是,本文的研究表明,需要采用消旋体给药才能同时作用于这两个靶点,因为D受体对某一对映体的选择性几乎是40倍,而5-HT受体对另一对映体的偏好性则大于50倍。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3799/6714530/86a071df3422/ao9b02144_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3799/6714530/335bdf56ca3c/ao9b02144_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3799/6714530/505ad1f64c7c/ao9b02144_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3799/6714530/86a071df3422/ao9b02144_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3799/6714530/335bdf56ca3c/ao9b02144_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3799/6714530/505ad1f64c7c/ao9b02144_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3799/6714530/86a071df3422/ao9b02144_0003.jpg

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本文引用的文献

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Discovery of Nonracemic Amisulpride to Maximize Benefit/Risk of 5-HT7 and D2 Receptor Antagonism for the Treatment of Mood Disorders.发现非手性阿莫沙平,以最大限度地提高 5-HT7 和 D2 受体拮抗作用治疗情绪障碍的获益/风险。
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