Leptin Increases Expression of 5-HT2B Receptors in Astrocytes Thus Enhancing Action of Fluoxetine on the Depressive Behavior Induced by Sleep Deprivation

The long-lasting loss of sleep is a generally acknowledged risk factor for the occurrence of major depressive disorder (MDD), whereas sleep abnormalities being a key clinic symptom of the MDD. In our previous work, we demonstrated that the sleep deprivation (SD) stimulates activation of nucleotide-b...

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Main Authors: Xiaowei Li, Shanshan Liang, Zexiong Li, Shuai Li, Maosheng Xia, Alexei Verkhratsky, Baoman Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-01-01
Series:Frontiers in Psychiatry
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpsyt.2018.00734/full
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author Xiaowei Li
Shanshan Liang
Zexiong Li
Shuai Li
Maosheng Xia
Alexei Verkhratsky
Alexei Verkhratsky
Baoman Li
author_facet Xiaowei Li
Shanshan Liang
Zexiong Li
Shuai Li
Maosheng Xia
Alexei Verkhratsky
Alexei Verkhratsky
Baoman Li
author_sort Xiaowei Li
collection DOAJ
description The long-lasting loss of sleep is a generally acknowledged risk factor for the occurrence of major depressive disorder (MDD), whereas sleep abnormalities being a key clinic symptom of the MDD. In our previous work, we demonstrated that the sleep deprivation (SD) stimulates activation of nucleotide-binding domain and leucine-rich repeat protein-3 (NLRP3) inflammasomes as well as the release of IL-1β and IL-18 from astrocytes. However, the underlying mechanism connecting SD and MDD still requires further study. Apart of the secretion of the pro-inflammatory cytokines, SD affects production of brain-derived neurotrophic factor (BDNF) while release of BDNF from astrocytes appears a key contributor to mood disorders. If and how the activation of NLRP3 inflammasome following SD affects the level of BDNF remains unknown. Antidepressant fluoxetine acts through astroglial 5-hydroxytryptamine receptor 2B (5-HT2B); these receptors are also related to the sleep-wake cycle. Contribution of leptin to MDD has been discovered recently, although the mechanistic links between leptin and the depressive-like behaviors has not been revealed. In this study, we discovered: (i) that activation of NLRP3 inflammasome was involved in the depressive-like behaviors induced by SD; (ii) decrease in BDNF following SD required the activation of NLRP3 inflammasomes; (iii) leptin augmented the anti-depressive action of fluoxetine through an increase in expression of astrocytic 5-HT2B receptors. We suggest that decrease in BDNF by the activated NLRP3 inflammasomes in astrocytes is the key pathological event of the depressive-like behaviors induced by SD, while the combined treatment with fluoxetine and leptin improves therapeutic outcome for the depression induced by SD.
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spelling doaj.art-ca78e833b827452099cc2092105ba7292022-12-21T20:02:49ZengFrontiers Media S.A.Frontiers in Psychiatry1664-06402019-01-01910.3389/fpsyt.2018.00734430121Leptin Increases Expression of 5-HT2B Receptors in Astrocytes Thus Enhancing Action of Fluoxetine on the Depressive Behavior Induced by Sleep DeprivationXiaowei Li0Shanshan Liang1Zexiong Li2Shuai Li3Maosheng Xia4Alexei Verkhratsky5Alexei Verkhratsky6Baoman Li7Laboratory Teaching Center, School of Forensic Medicine, China Medical University, Shenyang, ChinaLaboratory Teaching Center, School of Forensic Medicine, China Medical University, Shenyang, ChinaLaboratory Teaching Center, School of Forensic Medicine, China Medical University, Shenyang, ChinaLaboratory Teaching Center, School of Forensic Medicine, China Medical University, Shenyang, ChinaDepartment of Orthopaedics, The First Hospital, China Medical University, Shenyang, ChinaFaculty of Life Science, The University of Manchester, Manchester, United KingdomAchucarro Center for Neuroscience, IKERBASQUE, Basque Foundation for Science, Bilbao, SpainLaboratory Teaching Center, School of Forensic Medicine, China Medical University, Shenyang, ChinaThe long-lasting loss of sleep is a generally acknowledged risk factor for the occurrence of major depressive disorder (MDD), whereas sleep abnormalities being a key clinic symptom of the MDD. In our previous work, we demonstrated that the sleep deprivation (SD) stimulates activation of nucleotide-binding domain and leucine-rich repeat protein-3 (NLRP3) inflammasomes as well as the release of IL-1β and IL-18 from astrocytes. However, the underlying mechanism connecting SD and MDD still requires further study. Apart of the secretion of the pro-inflammatory cytokines, SD affects production of brain-derived neurotrophic factor (BDNF) while release of BDNF from astrocytes appears a key contributor to mood disorders. If and how the activation of NLRP3 inflammasome following SD affects the level of BDNF remains unknown. Antidepressant fluoxetine acts through astroglial 5-hydroxytryptamine receptor 2B (5-HT2B); these receptors are also related to the sleep-wake cycle. Contribution of leptin to MDD has been discovered recently, although the mechanistic links between leptin and the depressive-like behaviors has not been revealed. In this study, we discovered: (i) that activation of NLRP3 inflammasome was involved in the depressive-like behaviors induced by SD; (ii) decrease in BDNF following SD required the activation of NLRP3 inflammasomes; (iii) leptin augmented the anti-depressive action of fluoxetine through an increase in expression of astrocytic 5-HT2B receptors. We suggest that decrease in BDNF by the activated NLRP3 inflammasomes in astrocytes is the key pathological event of the depressive-like behaviors induced by SD, while the combined treatment with fluoxetine and leptin improves therapeutic outcome for the depression induced by SD.https://www.frontiersin.org/article/10.3389/fpsyt.2018.00734/fullsleep deprivation5-HT2B receptorsastrocytesfluoxetineleptinNLRP3 inflammasomes
spellingShingle Xiaowei Li
Shanshan Liang
Zexiong Li
Shuai Li
Maosheng Xia
Alexei Verkhratsky
Alexei Verkhratsky
Baoman Li
Leptin Increases Expression of 5-HT2B Receptors in Astrocytes Thus Enhancing Action of Fluoxetine on the Depressive Behavior Induced by Sleep Deprivation
Frontiers in Psychiatry
sleep deprivation
5-HT2B receptors
astrocytes
fluoxetine
leptin
NLRP3 inflammasomes
title Leptin Increases Expression of 5-HT2B Receptors in Astrocytes Thus Enhancing Action of Fluoxetine on the Depressive Behavior Induced by Sleep Deprivation
title_full Leptin Increases Expression of 5-HT2B Receptors in Astrocytes Thus Enhancing Action of Fluoxetine on the Depressive Behavior Induced by Sleep Deprivation
title_fullStr Leptin Increases Expression of 5-HT2B Receptors in Astrocytes Thus Enhancing Action of Fluoxetine on the Depressive Behavior Induced by Sleep Deprivation
title_full_unstemmed Leptin Increases Expression of 5-HT2B Receptors in Astrocytes Thus Enhancing Action of Fluoxetine on the Depressive Behavior Induced by Sleep Deprivation
title_short Leptin Increases Expression of 5-HT2B Receptors in Astrocytes Thus Enhancing Action of Fluoxetine on the Depressive Behavior Induced by Sleep Deprivation
title_sort leptin increases expression of 5 ht2b receptors in astrocytes thus enhancing action of fluoxetine on the depressive behavior induced by sleep deprivation
topic sleep deprivation
5-HT2B receptors
astrocytes
fluoxetine
leptin
NLRP3 inflammasomes
url https://www.frontiersin.org/article/10.3389/fpsyt.2018.00734/full
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AT zexiongli leptinincreasesexpressionof5ht2breceptorsinastrocytesthusenhancingactionoffluoxetineonthedepressivebehaviorinducedbysleepdeprivation
AT shuaili leptinincreasesexpressionof5ht2breceptorsinastrocytesthusenhancingactionoffluoxetineonthedepressivebehaviorinducedbysleepdeprivation
AT maoshengxia leptinincreasesexpressionof5ht2breceptorsinastrocytesthusenhancingactionoffluoxetineonthedepressivebehaviorinducedbysleepdeprivation
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AT alexeiverkhratsky leptinincreasesexpressionof5ht2breceptorsinastrocytesthusenhancingactionoffluoxetineonthedepressivebehaviorinducedbysleepdeprivation
AT baomanli leptinincreasesexpressionof5ht2breceptorsinastrocytesthusenhancingactionoffluoxetineonthedepressivebehaviorinducedbysleepdeprivation