Eamonn Kelly, Alexandra Conibear, Graeme Henderson
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引用次数: 14
Abstract
In ligand bias different agonist drugs are thought to produce distinct signaling outputs when activating the same receptor. If these signaling outputs mediate therapeutic versus adverse drug effects, then agonists that selectively activate the therapeutic signaling pathway would be extremely beneficial. It has long been thought that μ-opioid receptor agonists that selectively activate G protein- over β-arrestin-dependent signaling pathways would produce effective analgesia without the adverse effects such as respiratory depression. However, more recent data indicate that most of the therapeutic and adverse effects of agonist-induced activation of the μ-opioid receptor are actually mediated by the G protein-dependent signaling pathway, and that a number of drugs described as G protein biased in fact may not be biased, but instead may be low-intrinsic-efficacy agonists. In this review we discuss the current state of the field of bias at the μ-opioid receptor and other opioid receptor subtypes.
期刊介绍:
Since 1961, the Annual Review of Pharmacology and Toxicology has been a comprehensive resource covering significant developments in pharmacology and toxicology. The journal encompasses various aspects, including receptors, transporters, enzymes, chemical agents, drug development science, and systems like the immune, nervous, gastrointestinal, cardiovascular, endocrine, and pulmonary systems. Special topics are also featured in this annual review.