Two Clusters of GABAergic Ellipsoid Body Neurons Modulate Olfactory Labile Memory in Drosophila

Two Clusters of GABAergic Ellipsoid Body Neurons Modulate Olfactory Labile Memory in Drosophila
复制标题

两簇 GABA 能椭球体神经元调节果蝇嗅觉不稳定记忆

DOI:
10.1523/jneurosci.5365-12.2013
复制
发表时间:
2013-03
影响因子:
5.3
通讯作者:
Guo, Aike
Guo, Aike
中科院分区:
医学1区
文献类型:
--
作者:
Zhang, Zhiping;Li, Xiaoting;Guo, Jing;Li, Yan;Guo, Aike

文献摘要

参考文献

相似文献

在果蝇中,厌恶嗅觉记忆被认为储存在一个突出的大脑结构中,蘑菇体(MB)和两对蘑菇体固有神经元,背对内侧(DPM)和前对外侧(APL)神经元,被发现调节中期记忆(MTM)的巩固。在这里,我们报告了另一个突出的大脑结构,椭球体(EB),也参与嗅觉MTM的调节。激活EB R2/R4m神经元不会影响学习指数,但会特异性地消除麻醉敏感记忆(ASM),这是嗅觉MTM的不稳定成分。我们进一步证明,大约三分之二的EB神经元是gaba能神经元,并负责抑制ASM。利用GRASP(跨突触伙伴的GFP重构),我们揭示了EB和MB之间在EB神经元突触前和突触后区域的潜在突触连接,表明这两个重要的大脑结构之间存在双向连接。这些发现提示了MB和EB之间存在直接联系,并为果蝇嗅觉不稳定记忆的神经回路基础提供了新的见解。
In Drosophila, aversive olfactory memory is believed to be stored in a prominent brain structure, the mushroom body (MB), and two pairs of MB intrinsic neurons, the dorsal paired medial (DPM) and the anterior paired lateral (APL) neurons, are found to regulate the consolidation of middle-term memory (MTM). Here we report that another prominent brain structure, the ellipsoid body (EB), is also involved in the modulation of olfactory MTM. Activating EB R2/R4m neurons does not affect the learning index, but specifically eliminates anesthesia-sensitive memory (ASM), the labile component of olfactory MTM. We further demonstrate that approximately two-thirds of these EB neurons are GABAergic and are responsible for the suppression of ASM. Using GRASP (GFP reconstitution across synaptic partners), we reveal potential synaptic connections between the EB and MB in regions covering both the presynaptic and postsynaptic sites of EB neurons, suggesting the presence of bidirectional connections between these two important brain structures. These findings suggest the existence of direct connections between the MB and EB, and provide new insights into the neural circuit basis for olfactory labile memory in Drosophila.
DOI: 10.1371/journal.pbio.0040063
发表时间: 2006-03
期刊: PLoS biology
影响因子: 9.8
作者:
Fayyazuddin A;Zaheer MA;Hiesinger PR;Bellen HJ
通讯作者: Bellen HJ
DOI: 10.1016/j.cub.2011.03.069
发表时间: 2011-05-24
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Pitman, Jena L.;Huetteroth, Wolf;Burke, Christopher J.;Krashes, Michael J.;Lai, Sen-Lin;Lee, Tzumin;Waddell, Scott
通讯作者: Waddell, Scott
DOI: 10.1101/lm.1331809
发表时间: 2009-05-01
期刊: LEARNING & MEMORY
影响因子: 2
作者:
Pan, Yufeng;Zhou, Yanqiong;Liu, Li
通讯作者: Liu, Li
DOI: 10.1016/j.cub.2005.09.042
发表时间: 2005-11-08
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Riemensperger, T;Völler, T;Fiala, A
通讯作者: Fiala, A
DOI: 10.1002/(sici)1097-4695(19991105)41:2
发表时间: 1999-11
期刊: Journal of neurobiology
影响因子: --
作者:
I. Cantallops;A. Routtenberg
通讯作者: I. Cantallops;A. Routtenberg