The Locus Coeruleus Modulates Intravenous General Anesthesia of Zebrafish via a Cooperative Mechanism

Summary: How general anesthesia causes loss of consciousness has been a mystery for decades. It is generally thought that arousal-related brain nuclei, including the locus coeruleus (LC), are involved. Here, by monitoring locomotion behaviors and neural activities, we developed a larval zebrafish mo...

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Main Authors: Wen-jie Du, Rong-wei Zhang, Jia Li, Bai-bing Zhang, Xiao-lan Peng, Song Cao, Jie Yuan, Cheng-dong Yuan, Tian Yu, Jiu-lin Du
Format: Article
Language:English
Published: Elsevier 2018-09-01
Series:Cell Reports
Online Access:http://www.sciencedirect.com/science/article/pii/S2211124718313329
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spelling doaj-ffce48b4a2084aef9077cdd3a3fe02d82020-11-24T21:46:27ZengElsevierCell Reports2211-12472018-09-01241231463155.e3The Locus Coeruleus Modulates Intravenous General Anesthesia of Zebrafish via a Cooperative MechanismWen-jie Du0Rong-wei Zhang1Jia Li2Bai-bing Zhang3Xiao-lan Peng4Song Cao5Jie Yuan6Cheng-dong Yuan7Tian Yu8Jiu-lin Du9Guizhou Key Laboratory of Anesthesia and Organ Protection, Zunyi Medical College, Zunyi 563000, ChinaInstitute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, China; Corresponding authorInstitute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, ChinaInstitute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, ChinaInstitute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, ChinaGuizhou Key Laboratory of Anesthesia and Organ Protection, Zunyi Medical College, Zunyi 563000, ChinaGuizhou Key Laboratory of Anesthesia and Organ Protection, Zunyi Medical College, Zunyi 563000, ChinaGuizhou Key Laboratory of Anesthesia and Organ Protection, Zunyi Medical College, Zunyi 563000, ChinaGuizhou Key Laboratory of Anesthesia and Organ Protection, Zunyi Medical College, Zunyi 563000, China; Corresponding authorInstitute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, China; School of Future Technology, University of Chinese Academy of Sciences, 19A Yu-Quan Road, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, 319 Yue-Yang Road, Shanghai 200031, China; Corresponding authorSummary: How general anesthesia causes loss of consciousness has been a mystery for decades. It is generally thought that arousal-related brain nuclei, including the locus coeruleus (LC), are involved. Here, by monitoring locomotion behaviors and neural activities, we developed a larval zebrafish model for studying general anesthesia induced by propofol and etomidate, two commonly used intravenous anesthetics. Local lesion of LC neurons via two-photon laser-based ablation or genetic depletion of norepinephrine (NE; a neuromodulator released by LC neurons) via CRISPR/Cas9-based mutation of dopamine-β-hydroxylase (dbh) accelerates induction into and retards emergence from general anesthesia. Mechanistically, in vivo whole-cell recording revealed that both anesthetics suppress LC neurons’ activity through a cooperative mechanism, inhibiting presynaptic excitatory inputs and inducing GABAA receptor-mediated hyperpolarization of these neurons. Thus, our study indicates that the LC-NE system plays a modulatory role in both induction of and emergence from intravenous general anesthesia. : The locus coeruleus (LC)-norepinephrine (NE) system is involved in general anesthesia. Here, Du et al. show that the LC-NE system plays a modulatory role in the induction and emergence of intravenous general anesthesia induced by propofol and etomidate, both of which suppress LC neuronal activities through a cooperative mechanism. Keywords: propofol, etomidate, intravenous general anesthesia, norepinephrine, locus coeruleus, zebrafishhttp://www.sciencedirect.com/science/article/pii/S2211124718313329
collection DOAJ
language English
format Article
sources DOAJ
author Wen-jie Du
Rong-wei Zhang
Jia Li
Bai-bing Zhang
Xiao-lan Peng
Song Cao
Jie Yuan
Cheng-dong Yuan
Tian Yu
Jiu-lin Du
spellingShingle Wen-jie Du
Rong-wei Zhang
Jia Li
Bai-bing Zhang
Xiao-lan Peng
Song Cao
Jie Yuan
Cheng-dong Yuan
Tian Yu
Jiu-lin Du
The Locus Coeruleus Modulates Intravenous General Anesthesia of Zebrafish via a Cooperative Mechanism
Cell Reports
author_facet Wen-jie Du
Rong-wei Zhang
Jia Li
Bai-bing Zhang
Xiao-lan Peng
Song Cao
Jie Yuan
Cheng-dong Yuan
Tian Yu
Jiu-lin Du
author_sort Wen-jie Du
title The Locus Coeruleus Modulates Intravenous General Anesthesia of Zebrafish via a Cooperative Mechanism
title_short The Locus Coeruleus Modulates Intravenous General Anesthesia of Zebrafish via a Cooperative Mechanism
title_full The Locus Coeruleus Modulates Intravenous General Anesthesia of Zebrafish via a Cooperative Mechanism
title_fullStr The Locus Coeruleus Modulates Intravenous General Anesthesia of Zebrafish via a Cooperative Mechanism
title_full_unstemmed The Locus Coeruleus Modulates Intravenous General Anesthesia of Zebrafish via a Cooperative Mechanism
title_sort locus coeruleus modulates intravenous general anesthesia of zebrafish via a cooperative mechanism
publisher Elsevier
series Cell Reports
issn 2211-1247
publishDate 2018-09-01
description Summary: How general anesthesia causes loss of consciousness has been a mystery for decades. It is generally thought that arousal-related brain nuclei, including the locus coeruleus (LC), are involved. Here, by monitoring locomotion behaviors and neural activities, we developed a larval zebrafish model for studying general anesthesia induced by propofol and etomidate, two commonly used intravenous anesthetics. Local lesion of LC neurons via two-photon laser-based ablation or genetic depletion of norepinephrine (NE; a neuromodulator released by LC neurons) via CRISPR/Cas9-based mutation of dopamine-β-hydroxylase (dbh) accelerates induction into and retards emergence from general anesthesia. Mechanistically, in vivo whole-cell recording revealed that both anesthetics suppress LC neurons’ activity through a cooperative mechanism, inhibiting presynaptic excitatory inputs and inducing GABAA receptor-mediated hyperpolarization of these neurons. Thus, our study indicates that the LC-NE system plays a modulatory role in both induction of and emergence from intravenous general anesthesia. : The locus coeruleus (LC)-norepinephrine (NE) system is involved in general anesthesia. Here, Du et al. show that the LC-NE system plays a modulatory role in the induction and emergence of intravenous general anesthesia induced by propofol and etomidate, both of which suppress LC neuronal activities through a cooperative mechanism. Keywords: propofol, etomidate, intravenous general anesthesia, norepinephrine, locus coeruleus, zebrafish
url http://www.sciencedirect.com/science/article/pii/S2211124718313329
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