网站地图 联系我们搜索内部网English | 中国科学院
首页 所况简介 机构设置 科研队伍 科学研究平台 院地合作 党群园地 国际交流 博士后 研究生教育 科学传播 信息公开
科研进展
成果报道
最新重要论文(影响因子PNAS及以上)
发表论文数据库
所级学术报告
科学成果
发表论文
专著
专利
获奖
专题
所史丛书
所庆专辑
建所50周年画册
现在位置:首页 > 科研进展 > 最新重要论文(影响因子PNAS及以上)
IGF1-Dependent Synaptic Plasticity of Mitral Cells in Olfactory Memory during Social Learning, Nueron, Vol. 95, Issue 1, pp. 106–122.e5, 5 July 2017
2017-07-30 | 【     】【打印】【关闭

Neuron, Vol. 95, Issue 1, pp. 106–122.e5, 5 July 2017, DOI: 10.1016/j.neuron.2017.06.015

IGF1-Dependent Synaptic Plasticity of Mitral Cells in Olfactory Memory during Social Learning

Zhihui Liu, Zijun Chen, Congping Shang, Fei Yan, Yingchao Shi, Jiajing Zhang, Baole Qu, Hailin Han, Yanying Wang, Dapeng Li, Thomas C. Südhof, Peng Cao

Abstract

During social transmission of food preference (STFP), mice form long-term memory of food odors presented by a social partner. How does the brain associate a social context with odor signals to promote memory encoding? Here we show that odor exposure during STFP, but not unconditioned odor exposure, induces glomerulus-specific long-term potentiation (LTP) of synaptic strength selectively at the GABAergic component of dendrodendritic synapses of granule and mitral cells in the olfactory bulb. Conditional deletion of synaptotagmin-10, the Ca2+ sensor for IGF1 secretion from mitral cells, or deletion of IGF1 receptor in the olfactory bulb prevented the socially relevant GABAergic LTP and impaired memory formation after STFP. Conversely, the addition of IGF1 to acute olfactory bulb slices elicited the GABAergic LTP in mitral cells by enhancing postsynaptic GABA receptor responses. Thus, our data reveal a synaptic substrate for a socially conditioned long-term memory that operates at the level of the initial processing of sensory information.

文章链接:https://www.sciencedirect.com/science/article/pii/S0896627317305135

评 论
                 
版权所有:中国科学院生物物理研究所     京ICP备05002792号 京公网安备 110402500011 号
地址:北京市朝阳区大屯路15号(100101) 电话:010-64889872
意见反馈联系人:马秋云 电子邮件:maqiuyun@moon.ibp.ac.cn