CELL:NTSR1新型调节剂选择性地减弱成瘾性行为

2020-05-29 MedSci原创 MedSci原创

小分子神经递质素受体1(NTSR1)激动剂作为治疗包括吸毒成瘾在内的精神疾病的潜在治疗手段已经有40多年的历史。然而,NTSR1受体激动剂的临床开发却因其严重的副作用而受到阻碍。

小分子神经递质素受体1(NTSR1)激动剂作为治疗包括吸毒成瘾在内的精神疾病的潜在治疗手段已经有40多年的历史。然而,NTSR1受体激动剂的临床开发却因其严重的副作用而受到阻碍。

NTSR1是一种G蛋白偶联受体(GPCR),通过激活G蛋白的经典信号通路,并与β-arrestins结合,介导不同的细胞信号事件。

在这里,研究人员发现了一种NTSR1的异构调节剂SBI-553。这种小分子不仅作为β-arrestin特异性激动剂,而且通过选择性地拮抗G蛋白的信号转导,将β-arrestin偏好性延伸到内源性配体。

SBI-553在精神刺激剂滥用的动物模型中显示出疗效,包括可卡因的自我给药,并且没有展现出NTSR1平衡激动作用所特有的副作用。

这些研究结果表明,NTSR1 G蛋白和β-arrestin激活产生了离散的、可分离的生理效应,从而为开发更安全的GPCR靶向治疗药物提供了一种更有针对性的策略。

 

原始出处:

Lauren M. Slosky et al. β-Arrestin-Biased Allosteric Modulator of NTSR1 Selectively Attenuates Addictive Behaviors. CELL (2020). DOI:https://doi.org/10.1016/j.cell.2020.04.053

 

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    2020-12-22 维他命
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    2020-05-31 xugc

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