Functional connectomics analysis of synaptic transmission using optogenetics
使用光遗传学进行突触传递的功能连接组学分析
基本信息
- 批准号:23650208
- 负责人:
- 金额:$ 2.41万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Challenging Exploratory Research
- 财政年份:2011
- 资助国家:日本
- 起止时间:2011 至 2013
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The aim was to develop a method applicable to slice-based analysis of synaptic transmission using optogenetics that can determine the origin of fibers being stimulated. Five to eight weeks after transfecting adeno-associated virus vectors for ChR2 expression into the lateral parabrachial nucleus (LPB) in the dorsal pons of rats, blue light pulses robustly triggered CNQX-sensitive EPSCs in the neurons in the capsular part of the central amygdala recorded in acute slices of distinct angles (coronal and horizontal). These light-evoked EPSCs (leEPSCs) were blocked by TTX but re-appeared by addition of 4-AP, suggesting monosynaptic innervation, and was followed by a large and long-lasting IPSC, indicative of the presence of polysynaptic feed-forward inhibition. This "functional connectomics" technique has advantages in identifying the synaptic properties of long-distance connections, which has been otherwise almost impossible in the conventional electrophysiology setups.
目的是开发一种适用于利用光遗传学对突触传递进行切片分析的方法,该方法可以确定受到刺激的纤维的起源。将表达 ChR2 的腺相关病毒载体转染至大鼠脑桥背侧臂旁核 (LPB) 后 5 至 8 周,蓝光脉冲强烈触发中央杏仁核囊部神经元中的 CNQX 敏感 EPSC不同角度(冠状和水平)的锐利切片。这些光诱发 EPSC (leEPSC) 被 TTX 阻断,但通过添加 4-AP 重新出现,表明存在单突触神经支配,随后出现大量且持久的 IPSC,表明存在多突触前馈抑制。这种“功能连接组学”技术在识别长距离连接的突触特性方面具有优势,这在传统的电生理学设置中几乎是不可能的。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Bilateral potentiation of parabrachial, but not basolateral amygdala inputs, to central capsular amygdala neurons in neuropathic diabetic mice,
神经病性糖尿病小鼠中臂旁杏仁核输入对中央杏仁核囊神经元的双边增强,但不是基底外侧杏仁核输入,
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:Ochiai Y;Takahashi Y;Asato M;Watabe AM Ohsawa M;Kamei J;Kato F
- 通讯作者:Kato F
侵害受容情報と痛み情動記憶を結ぶ腕傍核
臂旁核连接伤害性信息和疼痛情绪记忆
- DOI:
- 发表时间:2014
- 期刊:
- 影响因子:0
- 作者:Adachi N;Numakawa T;Kumamaru E;Itami C;Chiba S;Iijima Y;Richards M;Katoh-Semba R;Kunugi H.;加藤総夫
- 通讯作者:加藤総夫
, Selective potentiation of the parabrachial-amygdaloid synaptic transmission in the streptozotocin model of diabetes melitus in the mice
, 小鼠糖尿病链脲佐菌素模型中臂旁杏仁核突触传递的选择性增强
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:Ochiai T;Takahashi Y;Asato M;Watabe AM;Ohsawa M;Kamei J;Kato F
- 通讯作者:Kato F
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08630076 - 财政年份:1996
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