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題名 Serotonin receptor HTR6 mediates dietary restriction-induced memory enhancement
作者 廖瑞銘
Liao, Ruey-Ming
Teng, Ling-Ling
Lu, Guan-Ling
Chiou, Lih-Chu
Lin, Wei-Sheng
貢獻者 心理系
日期 2019-04
上傳時間 21-Nov-2019 10:40:57 (UTC+8)
摘要 Dietary restriction (DR; sometimes called calorie restriction) has profound beneficial effects on physiological, psychological, and behavioral outcomes in animals and in humans. We have explored the molecular mechanism of DR-induced memory enhancement and demonstrate that dietary tryptophan—a precursor amino acid for serotonin biosynthesis in the brain—and serotonin receptor 5-hydroxytryptamine receptor 6 (HTR6) are crucial in mediating this process. We show that HTR6 inactivation diminishes DR-induced neurological alterations, including reduced dendritic complexity, increased spine density, and enhanced longterm potentiation (LTP) in hippocampal neurons. Moreover, we find that HTR6-mediated mechanistic target of rapamycin complex 1 (mTORC1) signaling is involved in DR-induced memory improvement. Our results suggest that the HTR6-mediated mTORC1 pathway may function as a nutrient sensor in hippocampal neurons to couple memory performance to dietary intake.
關聯 PLOS Biology, Vol.17, No.3, pp.e2007097
資料類型 article
DOI https://doi.org/10.1371/journal.pbio.2007097
dc.contributor 心理系-
dc.creator (作者) 廖瑞銘-
dc.creator (作者) Liao, Ruey-Ming-
dc.creator (作者) Teng, Ling-Ling-
dc.creator (作者) Lu, Guan-Ling-
dc.creator (作者) Chiou, Lih-Chu-
dc.creator (作者) Lin, Wei-Sheng-
dc.date (日期) 2019-04-
dc.date.accessioned 21-Nov-2019 10:40:57 (UTC+8)-
dc.date.available 21-Nov-2019 10:40:57 (UTC+8)-
dc.date.issued (上傳時間) 21-Nov-2019 10:40:57 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/127386-
dc.description.abstract (摘要) Dietary restriction (DR; sometimes called calorie restriction) has profound beneficial effects on physiological, psychological, and behavioral outcomes in animals and in humans. We have explored the molecular mechanism of DR-induced memory enhancement and demonstrate that dietary tryptophan—a precursor amino acid for serotonin biosynthesis in the brain—and serotonin receptor 5-hydroxytryptamine receptor 6 (HTR6) are crucial in mediating this process. We show that HTR6 inactivation diminishes DR-induced neurological alterations, including reduced dendritic complexity, increased spine density, and enhanced longterm potentiation (LTP) in hippocampal neurons. Moreover, we find that HTR6-mediated mechanistic target of rapamycin complex 1 (mTORC1) signaling is involved in DR-induced memory improvement. Our results suggest that the HTR6-mediated mTORC1 pathway may function as a nutrient sensor in hippocampal neurons to couple memory performance to dietary intake.-
dc.format.extent 3528055 bytes-
dc.format.mimetype application/pdf-
dc.relation (關聯) PLOS Biology, Vol.17, No.3, pp.e2007097-
dc.title (題名) Serotonin receptor HTR6 mediates dietary restriction-induced memory enhancement-
dc.type (資料類型) article-
dc.identifier.doi (DOI) 10.1371/journal.pbio.2007097-
dc.doi.uri (DOI) https://doi.org/10.1371/journal.pbio.2007097-