Long-term memory requires sequential protein synthesis in three subsets of mushroom body output neurons in Drosophila

Abstract Creating long-term memory (LTM) requires new protein synthesis to stabilize learning-induced synaptic changes in the brain. In the fruit fly, Drosophila melanogaster, aversive olfactory learning forms several phases of labile memory to associate an odor with coincident punishment in the mus...

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Autores principales: Jie-Kai Wu, Chu-Yi Tai, Kuan-Lin Feng, Shiu-Ling Chen, Chun-Chao Chen, Ann-Shyn Chiang
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/bd8fafb0abad4cc3b8f568065537eadb
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spelling oai:doaj.org-article:bd8fafb0abad4cc3b8f568065537eadb2021-12-02T15:05:21ZLong-term memory requires sequential protein synthesis in three subsets of mushroom body output neurons in Drosophila10.1038/s41598-017-07600-22045-2322https://doaj.org/article/bd8fafb0abad4cc3b8f568065537eadb2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07600-2https://doaj.org/toc/2045-2322Abstract Creating long-term memory (LTM) requires new protein synthesis to stabilize learning-induced synaptic changes in the brain. In the fruit fly, Drosophila melanogaster, aversive olfactory learning forms several phases of labile memory to associate an odor with coincident punishment in the mushroom body (MB). It remains unclear how the brain consolidates early labile memory into LTM. Here, we survey 183 Gal4 lines containing almost all 21 distinct types of MB output neurons (MBONs) and show that sequential synthesis of learning-induced proteins occurs at three types of MBONs. Downregulation of oo18 RNA-binding proteins (ORBs) in any of these MBONs impaired LTM. And, neurotransmission outputs from these MBONs are all required during LTM retrieval. Together, these results suggest an LTM consolidation model in which transient neural activities of early labile memory in the MB are consolidated into stable LTM at a few postsynaptic MBONs through sequential ORB-regulated local protein synthesis.Jie-Kai WuChu-Yi TaiKuan-Lin FengShiu-Ling ChenChun-Chao ChenAnn-Shyn ChiangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Jie-Kai Wu
Chu-Yi Tai
Kuan-Lin Feng
Shiu-Ling Chen
Chun-Chao Chen
Ann-Shyn Chiang
Long-term memory requires sequential protein synthesis in three subsets of mushroom body output neurons in Drosophila
description Abstract Creating long-term memory (LTM) requires new protein synthesis to stabilize learning-induced synaptic changes in the brain. In the fruit fly, Drosophila melanogaster, aversive olfactory learning forms several phases of labile memory to associate an odor with coincident punishment in the mushroom body (MB). It remains unclear how the brain consolidates early labile memory into LTM. Here, we survey 183 Gal4 lines containing almost all 21 distinct types of MB output neurons (MBONs) and show that sequential synthesis of learning-induced proteins occurs at three types of MBONs. Downregulation of oo18 RNA-binding proteins (ORBs) in any of these MBONs impaired LTM. And, neurotransmission outputs from these MBONs are all required during LTM retrieval. Together, these results suggest an LTM consolidation model in which transient neural activities of early labile memory in the MB are consolidated into stable LTM at a few postsynaptic MBONs through sequential ORB-regulated local protein synthesis.
format article
author Jie-Kai Wu
Chu-Yi Tai
Kuan-Lin Feng
Shiu-Ling Chen
Chun-Chao Chen
Ann-Shyn Chiang
author_facet Jie-Kai Wu
Chu-Yi Tai
Kuan-Lin Feng
Shiu-Ling Chen
Chun-Chao Chen
Ann-Shyn Chiang
author_sort Jie-Kai Wu
title Long-term memory requires sequential protein synthesis in three subsets of mushroom body output neurons in Drosophila
title_short Long-term memory requires sequential protein synthesis in three subsets of mushroom body output neurons in Drosophila
title_full Long-term memory requires sequential protein synthesis in three subsets of mushroom body output neurons in Drosophila
title_fullStr Long-term memory requires sequential protein synthesis in three subsets of mushroom body output neurons in Drosophila
title_full_unstemmed Long-term memory requires sequential protein synthesis in three subsets of mushroom body output neurons in Drosophila
title_sort long-term memory requires sequential protein synthesis in three subsets of mushroom body output neurons in drosophila
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/bd8fafb0abad4cc3b8f568065537eadb
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