Bias Factor and Therapeutic Window Correlate to Predict Safer Opioid Analgesics.
Bias Factor and Therapeutic Window Correlate to Predict Safer Opioid Analgesics.
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DOI:
10.1016/j.cell.2017.10.035
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发表时间:
2017-11-16
期刊:
影响因子:
64.5
通讯作者:
Bohn LM
中科院分区:
文献类型:
--
作者:
Schmid CL;Kennedy NM;Ross NC;Lovell KM;Yue Z;Morgenweck J;Cameron MD;Bannister TD;Bohn LM
Biased agonism has been proposed as a means to separate desirable and adverse drug responses downstream of G protein-coupled receptor (GPCR) targets. Herein we describe structural features of a series of mu opioid receptor (MOR)-selective agonists that preferentially activate receptor to couple to G proteins or to recruit βarrestin proteins. By comparing relative bias for MOR-mediated signaling in each pathway, we demonstrate a strong correlation between the respiratory suppression/antinociception therapeutic window in a series of compounds spanning a wide range of signaling bias. We find that βarrestin-biased compounds, such as fentanyl, are more likely to induce respiratory suppression at weak analgesic doses, while G protein signaling-bias broadens the therapeutic window, allowing for antinociception in the absence of respiratory suppression.
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DOI:
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影响因子:
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