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Orexin neurons suppress narcolepsy via 2 distinct efferent pathways
http://hdl.handle.net/2297/36930
http://hdl.handle.net/2297/3693088748cb7-3b77-44c6-990e-3f74b07cf300
名前 / ファイル | ライセンス | アクション |
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ME-PR-MIEDA-M-604.pdf (12.3 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Orexin neurons suppress narcolepsy via 2 distinct efferent pathways | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Hasegawa, Emi
× Hasegawa, Emi× Yanagisawa, Masashi× Sakurai, Takeshi× Mieda, Michihiro |
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書誌情報 |
Journal of Clinical Investigation 巻 124, 号 2, p. 604-616, 発行日 2014-02-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0021-9738 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00695520 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1172/JCI71017 | |||||
出版者 | ||||||
出版者 | American Society for Clinical Investigation | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The loss of orexin neurons in humans is associated with the sleep disorder narcolepsy, which is characterized by excessive daytime sleepiness and cataplexy. Mice lacking orexin peptides, orexin neurons, or orexin receptors recapitulate human narcolepsy phenotypes, further highlighting a critical role for orexin signaling in the maintenance of wakefulness. Despite the known role of orexin neurons in narcolepsy, the precise neural mechanisms downstream of these neurons remain unknown. We found that targeted restoration of orexin receptor expression in the dorsal raphe (DR) and in the locus coeruleus (LC) of mice lacking orexin receptors inhibited cataplexy-like episodes and pathological fragmentation of wakefulness (i.e., sleepiness), respectively. The suppression of cataplexy-like episodes correlated with the number of serotonergic neurons restored with orexin receptor expression in the DR, while the consolidation of fragmented wakefulness correlated with the number of noradrenergic neurons restored in the LC. Furthermore, pharmacogenetic activation of these neurons using designer receptor exclusively activated by designer drug (DREADD) technology ameliorated narcolepsy in mice lacking orexin neurons. These results suggest that DR serotonergic and LC noradrenergic neurons play differential roles in orexin neuron-dependent regulation of sleep/wakefulness and highlight a pharmacogenetic approach for the amelioration of narcolepsy. © Copyright 2014 American Society for Clinical Investigation. | |||||
権利 | ||||||
権利情報 | © Copyright 2014 American Society for Clinical Investigation | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |