Movement homeostasis: neural circuits and molecules

Date:2023-06-06

 

Time: 10:30-12:00 on Tue.,June.6, 2023

Venue:E109, Biomedicine Hall

Speaker: Dr.Shangbang Gao

Host: Dr.Guangshuo Ou

Title:  Movement homeostasis: neural circuits and molecules

 

Abstract:

Movement homeostasis is critical for all animals. Dr. Charles S. Sherrington, the British physiologist and Nobel laureate, said “To move things is all that mankind can do… … whether whispering, or felling a forest”. When the question of “How rhythmic movements are established and balanced” hits neural circuits and genes, it is complicated, due to the astronomical number of neurons. By using the compact nervous system and convenient genetic manipulation of C. elegans (秀丽隐杆线虫), a nematode animal model with tiny brain (302 neurons) but conserved genome, we would like to dissect the key neural circuits and molecules that essentially required for movement homeostasis. We have identified a series of interesting neuronal connections and functional molecular modulators that specifically regulate the initiation, maintain and balance of C. elegans locomotion. We found the motor-neuron composed central pattern generation (CPG) drives backward locomotion. Two neuropeptides NLP-18 and NLP-12 differentially regulate escape steering and body bending via the activation of one GPCR CKR-1 in one head motor neuron. And recently we unexpectedly discovered that the backward commend interneuron AVA regulates both backward and forward locomotion in C. elegans, thus functioning as a master neuron for overall locomotion. Together, we carefully peered a tip of the movement equilibrium in an elegant animal model, which might help with movement comprehension.  

 

Biography:

教育工作背景:高尚邦,华中科技大学教授,同济医院老年综合科双聘教授,博士生导师。2003年获得华中科技大学学士学位;2003-2008在华中科技大学与中国科学院生物物理研究生联合培养(师从徐涛院士),获博士学位;2008-2015年在多伦多大学从事博士后研究。2016年入职华中科技大学组建独立课题组。

主要研究兴趣:致力于研究运动稳态与重构,特别是运动序列转换的神经环路、分子机制与计算原理,对于运动协调、运动本体感知、运动稳健与灵活性以及运动疾病治疗等感兴趣。

研究成果:近5年带领独立课题组,以(共同)通讯作者在Nature Methods、Nature Communications、 PloS Biology (accepted) 、 Cell Reports 、 EMBO Reports (accepted in principle) 、 Elife 、 Frontier Mol. Neurosci. 、ACS Nano、Small、 Nanoscale等著名学术期刊,发表SCI研究论文10篇,受邀综述和书籍章节各1篇。

学术贡献:(1)主持2021年第十届神经细胞生物学前沿研讨会(2)主持2019年国际线虫大会Plenary Session(3)主持2017国际线虫大会的“Neuronal Degeneration, Regeneration, Synapses and Circuits”专题分会(4)受邀在“国际线虫大会”、线虫神经功能大会“CeNeuro meeting”、“世界华人神经科学家大会”“亚太线虫大会”等作国际大会学术报告。

项目与奖项:(1)主持基金委2021年“重点国际(地区)合作研究项目”, (2)主持教育部2022年“促进与加拿大、澳大利亚、新西兰及拉美地区科研合作与高层次人才培养项目” (3)主持2019、2017年“面上项目”, (4)2023年科技部重点研发项目课题负责人(5)参与国家留学基金委2020年“创新型人才国际合作培养项目” (6)获国家海外优青、湖北杰青、加拿大Early Research Award等。

学术任职:(1)现任中国神经科学学会离子通道与受体分会委员(2)中国生物学会神经细胞生物学分会委员(3)中国老年保健协会副主任委员。