Acta Neuropharmacologica››2018,Vol. 8››Issue (2): 1-7.DOI:10.3969/j.issn.2095-1396.2018.02.001

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Biased Ligand——Novel Paradigm for Opioid Analgesics

SUN Yi,TAN Bo,SU Rui-bin

  1. State Key Laboratory of Toxicology and Medical Countermeasures;Bei j ing Key Laboratory of Neuropsychopharmacology;Beijing Institute of Pharmacology and Toxicology,Beijing,100850,China
  • Online:2018-04-26Published:2018-04-16
  • Contact:谭博,男,助理研究员;研究方向:神经精神药理学;Tel:+86-010-66874604,E-mail:whutanbo@gmail.com 苏瑞斌,男,研究员;研究方向:神经精神药理学;Tel:+86-010-66931601,E-mail:ruibinsu@126.com
  • About author:孙毅,女,博士研究生;研究方向:神经精神药理学;Tel:+86-010-66874604,E-mail:surisun@yeah.net
  • Supported by:

    国家自然科学基金项目(No. 81773709)

Abstract:Morphine and related opioids have been used as clinical analgesics for centuries,but various side effects-which include respiratory depression,tolerance and addictionset a limit to medication. Consequently,unremitting efforts have been directed towards the discovery of effective and nonlethal pain killers. Recent studies identified a novel β-arrestindependent pathway through μ-opioid receptor and indicated that side effects of morphine are mediated through β-arrestin-dependent pathway while G-protein-dependent pathway is thought to confer analgesia,which means biased ligands to G-protein signaling are possible analgesics without side effects. The theory of biased ligands may provide a novel strategy to design better and safer opioid analgesics. In this review,we summarized the discovery,development and application of β-arrestin-dependent pathway and biased ligands.

Key words:biased ligands,&,mu,opioid receptor,signal transduction,analgesic

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