{"title":"Brain-Scale Electroencephalography Patterns of Sleep and Wake in Schizophrenia","authors":"Alena Damborská","doi":"10.1016/j.bpsgos.2024.100428","DOIUrl":"10.1016/j.bpsgos.2024.100428","url":null,"abstract":"","PeriodicalId":72373,"journal":{"name":"Biological psychiatry global open science","volume":"5 1","pages":"Article 100428"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143096834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kleanthi Chalkiadaki , Elpida Statoulla , Maria Zafeiri , Georgia Voudouri , Theoklitos Amvrosiadis , Alexandra Typou , Niki Theodoridou , Dimitrios Moschovas , Apostolos Avgeropoulos , Martina Samiotaki , John O. Mason , Christos G. Gkogkas
{"title":"GABA/Glutamate Neuron Differentiation Imbalance and Increased AKT/mTOR Signaling in CNTNAP2−/− Cerebral Organoids","authors":"Kleanthi Chalkiadaki , Elpida Statoulla , Maria Zafeiri , Georgia Voudouri , Theoklitos Amvrosiadis , Alexandra Typou , Niki Theodoridou , Dimitrios Moschovas , Apostolos Avgeropoulos , Martina Samiotaki , John O. Mason , Christos G. Gkogkas","doi":"10.1016/j.bpsgos.2024.100413","DOIUrl":"10.1016/j.bpsgos.2024.100413","url":null,"abstract":"<div><h3>Background</h3><div>The polygenic nature of autism spectrum disorder (ASD) requires the identification of converging genetic pathways during early development to elucidate its complexity and varied manifestations.</div></div><div><h3>Methods</h3><div>We developed a human cerebral organoid model from induced pluripotent stem cells with targeted genome editing to abolish protein expression of the <em>CNTNAP2</em> ASD risk gene.</div></div><div><h3>Results</h3><div>CNTNAP2<sup>−/−</sup> cerebral organoids displayed accelerated cell cycle, ventricular zone disorganization, and increased cortical folding. Proteomic analysis revealed disruptions in glutamatergic/GABAergic (gamma-aminobutyric acidergic) synaptic pathways and neurodevelopment, and transcriptomic analysis revealed differentially expressed genes belonging to inhibitory neuron–related gene networks. Interestingly, there was a weak correlation between the 2 datasets, suggesting nuanced translational control mechanisms. Along these lines, we found upregulated AKT/mTOR (mechanistic target of rapamycin) signaling in CNTNAP2<sup>−/−</sup> organoids. Spatial transcriptomic analysis of CNTNAP2<sup>−/−</sup> ventricular-like zones demonstrated pervasive changes in gene expression, implicating upregulation of cell cycle regulation, synaptic, and glutamatergic/GABAergic pathways. We noted significant overlap of all day-30 organoid omics datasets differentially expressed genes from idiopathic ASD (macrocephaly) induced pluripotent stem cell–derived telencephalic organoids, where FOXG1 was upregulated. Moreover, we detected increased GAD1-expressing and decreased TBR1-expressing cells, suggesting altered GABAergic/glutamatergic neuron development.</div></div><div><h3>Conclusions</h3><div>These findings potentially highlight a shared mechanism in the early cortical development of various forms of ASD, further elucidate the role of CNTNAP2 in ASD pathophysiology and cortical development, and pave the way for targeted therapies that use cerebral organoids as preclinical models.</div></div>","PeriodicalId":72373,"journal":{"name":"Biological psychiatry global open science","volume":"5 1","pages":"Article 100413"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11699409/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142933949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Emotional Impairments in Animal Models of Traumatic Neuropathic Pain: Where Do We Stand?","authors":"Filipa Pinto-Ribeiro","doi":"10.1016/j.bpsgos.2024.100424","DOIUrl":"10.1016/j.bpsgos.2024.100424","url":null,"abstract":"","PeriodicalId":72373,"journal":{"name":"Biological psychiatry global open science","volume":"5 1","pages":"Article 100424"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Guide for Authors","authors":"","doi":"10.1016/S2667-1743(24)00155-1","DOIUrl":"10.1016/S2667-1743(24)00155-1","url":null,"abstract":"","PeriodicalId":72373,"journal":{"name":"Biological psychiatry global open science","volume":"5 1","pages":"Article 100442"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Individually Specific Topography Maps Derived From Resting-State Functional Magnetic Resonance Imaging to Understand the Neurobiology of Psychosis","authors":"Philip R. Szeszko","doi":"10.1016/j.bpsgos.2024.100417","DOIUrl":"10.1016/j.bpsgos.2024.100417","url":null,"abstract":"","PeriodicalId":72373,"journal":{"name":"Biological psychiatry global open science","volume":"5 1","pages":"Article 100417"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Subscribers Page","authors":"","doi":"10.1016/S2667-1743(24)00153-8","DOIUrl":"10.1016/S2667-1743(24)00153-8","url":null,"abstract":"","PeriodicalId":72373,"journal":{"name":"Biological psychiatry global open science","volume":"5 1","pages":"Article 100440"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"If Mismatch Negativity Is the Answer, What Is the Question? On the Nature of Predictive Coding Abnormalities in Psychosis","authors":"Valentina Mancini , Matthew M. Nour","doi":"10.1016/j.bpsgos.2024.100412","DOIUrl":"10.1016/j.bpsgos.2024.100412","url":null,"abstract":"","PeriodicalId":72373,"journal":{"name":"Biological psychiatry global open science","volume":"5 1","pages":"Article 100412"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143096836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Embracing Model Heterogeneity for Better Brain-Behavior Associations","authors":"Dustin Scheinost , Marisa N. Spann","doi":"10.1016/j.bpsgos.2024.100425","DOIUrl":"10.1016/j.bpsgos.2024.100425","url":null,"abstract":"","PeriodicalId":72373,"journal":{"name":"Biological psychiatry global open science","volume":"5 1","pages":"Article 100425"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143096837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hope Kronman , Amarjyot Singh , Shofiul Azam , Andrea S. Guzman , Danielle Zelli , Timothy Lau , Josh Dobbin , Benedetta Bigio , Carla Nasca
{"title":"Multidimensional Effects of Stress on Neuronal Exosome Levels and Simultaneous Transcriptomic Profiles","authors":"Hope Kronman , Amarjyot Singh , Shofiul Azam , Andrea S. Guzman , Danielle Zelli , Timothy Lau , Josh Dobbin , Benedetta Bigio , Carla Nasca","doi":"10.1016/j.bpsgos.2024.100401","DOIUrl":"10.1016/j.bpsgos.2024.100401","url":null,"abstract":"<div><h3>Background</h3><div>An excess of exosomes, nanovesicles released from all cells and key regulators of brain plasticity, is an emerging therapeutic target for stress-related mental illnesses. The effects of chronic stress on exosome levels are unknown; even less is known about molecular drivers of exosome levels in the stress response.</div></div><div><h3>Methods</h3><div>We used our state-of-the-art protocol with 2 complementary strategies to isolate neuronal exosomes from plasma, ventral dentate gyrus, basolateral amygdala, and olfactory bulbs of male mice to determine the effects of chronic restraint stress (CRS) on exosome levels. Next, we used RNA sequencing and bioinformatic analyses to identify molecular drivers of exosome levels.</div></div><div><h3>Results</h3><div>We found that CRS leads to an increase in the levels of neuronal exosomes but not total (i.e., not neuronally enriched) exosome levels assayed in plasma and the ventral dentate gyrus, whereas CRS leads to a decrease in neuronal exosome levels but not total exosome levels in the basolateral amygdala. There was a further specificity of effects as shown by a lack of changes in the levels of neuronal exosomes assayed in the olfactory bulbs. In pursuit of advancing translational applications, we showed that acetyl-L-carnitine administration restores the CRS-induced increase in neuronal exosome levels assayed in plasma (the most accessible specimen). Furthermore, the CRS-induced changes in neuronal exosome levels in the ventral dentate gyrus and basolateral amygdala mirrored the opposite pattern of CRS-induced transcriptional changes in these key brain areas, with β-estradiol signaling as a potential upstream driver of neuronal exosome levels.</div></div><div><h3>Conclusions</h3><div>This study provides a foundation for future studies of new forms of local and distant communication in stress neurobiology by demonstrating specific relationships between neuronal exosome levels assayed in plasma and the brain and providing new candidate targets for the normalization of exosome levels.</div></div>","PeriodicalId":72373,"journal":{"name":"Biological psychiatry global open science","volume":"5 1","pages":"Article 100401"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11667124/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142886544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"In This Issue – January 2025","authors":"","doi":"10.1016/j.bpsgos.2024.100433","DOIUrl":"10.1016/j.bpsgos.2024.100433","url":null,"abstract":"","PeriodicalId":72373,"journal":{"name":"Biological psychiatry global open science","volume":"5 1","pages":"Article 100433"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143092547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}