Sexually dimorphic dopaminergic circuits determine sex preference

发布日期:2025-02-18

 

时间: 14:00-15:30 on Tues.,Feb.18, 2025

地点:生物医学馆E109会议室

主讲人: Dr.Changhe Wang

主持人: Dr. Yi Lin

题目: Sexually dimorphic dopaminergic circuits determine sex preference

 

摘要:

Sociosexual preference is critical for reproduction and survival. However, neural mechanisms encoding social decisions on sex preference remain unclear. Here we show that both male and female mice exhibit female preference but shift to male preference when facing survival threats, which is mediated by the dimorphic changes in the excitability of ventral tegmental area dopaminergic (VTADA) neurons. In males, VTADA projections to the nucleus accumbens (NAc) mediate female preference and those to the medial preoptic area mediate male preference. In females, firing-pattern (phasic-like vs tonic-like) alteration of the VTADA-NAc projection determines sociosexual preferences in females. These findings define VTADA neurons as a key node for social decision-making and reveal the sexually dimorphic DA circuit mechanisms underlying sociosexual preference.

 

简介:

王昌河,西安交通大学教授、博导,青年长江学者、陕西省杰青、陕西省科技创新团队带头人、陕西省青年百人、西安交大青年拔尖人才(A类)、师德标兵,荣获贝时璋青年生物物理学家奖、教育部自然科学一等奖(第3完成人)、陕西青年科技奖、脑科学与类脑智能科创新青年30人,担任神经科学研究中心主任,神经生物学学科带头人,生物系主任。长期从事神经分泌与突触传递的调控机制、情绪调控与行为决策的环路机制及多巴胺系统相关疾病的病理机制研究,以通讯作者在Science、Nat Neurosci、Adv Sci、Nat Commun(3篇)、PNAS(3篇)、J Cell Biol(2篇)等期刊发表论文27篇,申请/授权发明专利15项,研究成果被Science、Nature、Nat Neurosci、Nat Rev Neurosci、J Cell Biol、Mov Disord、F1000等重点推荐和亮点评述。担任中国生物物理学会理事,中国生物物理学会神经生物物理分会副主任兼秘书长,中国神经科学学会突触可塑性分会副主任,中国神经科学学会离子通道与受体分会委员,中国细胞生物学会神经细胞分会委员,中国生理学会衰老与健康专业委员会委员,中国生理学会青年委员会委员,中国老年学会衰老与抗衰老分会委员等重要学术任职十余项。