Kunpeng Ma, Haiyan Chen, Li Chen, Shuainan Zhao, Huafang Zou, Dongfang Zou, Qi Zeng, Dezhi Cao, Jianyuan Sun, Lin Li, Xuefeng Shen
{"title":"Unveiling β Subunit-Dependent Gating Defects in Ca<sub>V</sub>2.1 Channelopathies: Investigation of a de novo CACNA1A Variant.","authors":"Kunpeng Ma, Haiyan Chen, Li Chen, Shuainan Zhao, Huafang Zou, Dongfang Zou, Qi Zeng, Dezhi Cao, Jianyuan Sun, Lin Li, Xuefeng Shen","doi":"10.1007/s12264-025-01508-y","DOIUrl":"https://doi.org/10.1007/s12264-025-01508-y","url":null,"abstract":"","PeriodicalId":19314,"journal":{"name":"Neuroscience bulletin","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145080498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiao Yu, Jiacheng Du, Chenger Zhou, Yongheng Huang, Huijuan Li, Bruce M Cohen, Sangmi Chung, Zhicheng Shao
{"title":"Dysregulation of the BRD2-FGF17 Signal Pathway Induces Abnormal Forebrain Development Associated with Schizophrenia.","authors":"Xiao Yu, Jiacheng Du, Chenger Zhou, Yongheng Huang, Huijuan Li, Bruce M Cohen, Sangmi Chung, Zhicheng Shao","doi":"10.1007/s12264-025-01500-6","DOIUrl":"https://doi.org/10.1007/s12264-025-01500-6","url":null,"abstract":"<p><p>Schizophrenia (SCZ) is a severe and hereditary neurodevelopmental disorder with unknown etiology. Here, we found that the SCZ risk gene BRD2, as an epigenetic reader, is consistently expressed in developing mouse and human cortical astrocytes. Astrocyte-specific Brd2 knockout in mice leads to dysregulation of immune responses and reduces Fgf17 expression, resulting in SCZ-like behaviors, including impaired sensorimotor gating, memory, and cognitive deficits. Moreover, BRD2 inhibition using JQ1 in forebrain organoids leads to FGF17 reduction, inducing developmental deficits involved in neural patterning and gliogenesis. The decrease of FGF17 expression was also found in SCZ patient-derived forebrain organoids, similar to BRD2-inhibited forebrain organoids. FGF17 treatment partially rescued the disrupted gene expression in BRD2-inhibited human forebrain organoids. Taken together, these findings suggest that disrupting the BRD2-FGF17 signaling pathway in early brain development may contribute to the pathogenesis of schizophrenia and may represent a potential therapeutic target for SCZ.</p>","PeriodicalId":19314,"journal":{"name":"Neuroscience bulletin","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145065386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yun-Chao Tao, Li Zhao, Qiong Zhang, Xi-Yue Liu, Wei-Tang Liu, Ze-Xuan Li, Ling Hu, Lei Zhang, Jia-Yin Chen, Yu-Qiang Ding, Ning-Ning Song
{"title":"Nr4a2, A Key Factor Controlling the Development and Functional Maintenance of Forebrain Car3 Neurons.","authors":"Yun-Chao Tao, Li Zhao, Qiong Zhang, Xi-Yue Liu, Wei-Tang Liu, Ze-Xuan Li, Ling Hu, Lei Zhang, Jia-Yin Chen, Yu-Qiang Ding, Ning-Ning Song","doi":"10.1007/s12264-025-01496-z","DOIUrl":"https://doi.org/10.1007/s12264-025-01496-z","url":null,"abstract":"<p><p>Nr4a2 (Nurr1) is well known to be vital for midbrain dopaminergic neurons. Recent single-cell RNA analyses reveal that Nr4a2 is expressed in lateral cerebral regions, within neurons named L4/L5/L6 IT Car3. These neurons have attracted intense attention for the molecular mechanisms underlying their development and functions. We classified Car3 neurons into neocortical (Ncx-Car3), claustral (CLA-Car3), and dorsal endopiriform nucleus (dEn-Car3) subpopulations, focusing on the characterization of Ncx-Car3 neurons. These neurons exhibit distinct birthdates and migratory morphologies compared to CLA- and dEn-Car3 neurons, but share a common transcriptomic profile when Nr4a2 is deleted at the embryonic stage or in adulthood. Notably, Nr4a2 misexpression ectopically induces Car3-enriched genes in vivo. Mice lacking Nr4a2 in Car3 ensembles during the embryonic stage or in adulthood display hyperactivity and reduced anxiety-like behaviors. Therefore, our results demonstrate that Nr4a2 is a key factor in regulating the development and functional maintenance of the forebrain Car3 neurons.</p>","PeriodicalId":19314,"journal":{"name":"Neuroscience bulletin","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145023904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yu-Long Bao, Wei-Peng Duan, Yan Yang, Zhijie Lin, Ying Shen, Rui Zheng, Xin-Tai Wang
{"title":"Deletion of the SHORT Syndrome Gene Prkce Results in Brain Atrophy and Cognitive and Motor Behavior Deficits in Mice.","authors":"Yu-Long Bao, Wei-Peng Duan, Yan Yang, Zhijie Lin, Ying Shen, Rui Zheng, Xin-Tai Wang","doi":"10.1007/s12264-025-01497-y","DOIUrl":"https://doi.org/10.1007/s12264-025-01497-y","url":null,"abstract":"<p><p>The neurological manifestations of SHORT syndrome include intrauterine growth restriction, microcephaly, intellectual disability, hearing loss, and speech delay. SHORT syndrome is generally believed to be caused by PIK3R1 gene mutations and impaired PI3K-AKT activation. Recently, a clinical case report described a SHORT syndrome with a novel mutant in PRKCE gene encoding protein kinase Cε (PKCε). However, it remains unclear whether the down-regulation of PKCε gives rise to the symptoms of SHORT syndrome. In this study, we show that a deficiency of PKCε in the central nervous system leads to cerebral and cerebellar atrophy, as well as motor and social deficits. Mechanistically, the deletion of PKCε results in the down-regulation of VEGF/PI3K-induced AKT activation, thereby causing abnormal brain development and dysfunctions. These findings emphasize the roles of PKCε in the development and function of the brain, and offer new perspectives for understanding the neurological manifestations of SHORT syndrome.</p>","PeriodicalId":19314,"journal":{"name":"Neuroscience bulletin","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145008337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}