NeurotherapeuticsPub Date : 2026-07-01Epub Date: 2026-06-24DOI: 10.1016/j.neurot.2026.e00949
Elin Wik, Amelia D. Dahlén, Ulrika Julku, Mengfei Xiong, Wojciech Michno, Stina Syvänen, Dag Sehlin
{"title":"Brain interstitial fluid pharmacokinetics and therapeutic effect of a BBB penetrating amyloid beta antibody measured by microdialysis","authors":"Elin Wik, Amelia D. Dahlén, Ulrika Julku, Mengfei Xiong, Wojciech Michno, Stina Syvänen, Dag Sehlin","doi":"10.1016/j.neurot.2026.e00949","DOIUrl":"10.1016/j.neurot.2026.e00949","url":null,"abstract":"<div><div>The disease-modifying antibody lecanemab for treating Alzheimer's disease (AD) was initially designed to target amyloid-beta (Aβ) protofibrils, i.e. soluble aggregates of Aβ, but it has also been successful in clearing insoluble amyloid plaques in clinical studies. Therefore, this study aimed to investigate how a brain penetrating, bispecific murine variant of lecanemab (RmAb158-scFv8D3) distributes in the brain and interacts with different pools of aggregated Aβ in APP transgenic mice. The alpha-synuclein targeting antibody RmAbSynO2-scFv8D3 was used as control. Further, by performing <em>in vivo</em> high cut-off microdialysis in freely moving animals, brain interstitial fluid (ISF) was continuously collected across 24 h to assess concentrations of free antibody in the brain. <em>Post mortem</em> distribution of the antibodies was analyzed by sequential extraction of brain tissue. RmAb158-scFv8D3 showed rapid ISF clearance as well as a redistribution from brain extracts containing small, soluble Aβ species toward brain extracts containing insoluble, plaque-associated Aβ with time. A treatment effect was detected already at 12 h post injection, whereby the RmAb158-scFv8D3-treated animals showed lower concentrations of the smallest, most soluble Aβ aggregates. Collectively, these findings suggest that within the first 24 h after a single injection of the bispecific RmAb158-scFv8D3 antibody we can capture the antibody's initial brain distribution and interactions with both soluble Aβ aggregates and insoluble, plaque-associated Aβ. These interactions mediate a swift reduction of soluble Aβ, while clearance of insoluble Aβ requires longer treatment time.</div></div>","PeriodicalId":19159,"journal":{"name":"Neurotherapeutics","volume":"23 4","pages":"Article e00949"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148318097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurotherapeuticsPub Date : 2026-07-01Epub Date: 2026-07-10DOI: 10.1016/j.neurot.2026.e00959
David Neal Franz
{"title":"23 years of mTOR inhibition for tuberous sclerosis: Practical considerations","authors":"David Neal Franz","doi":"10.1016/j.neurot.2026.e00959","DOIUrl":"10.1016/j.neurot.2026.e00959","url":null,"abstract":"","PeriodicalId":19159,"journal":{"name":"Neurotherapeutics","volume":"23 4","pages":"Article e00959"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148422881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurotherapeuticsPub Date : 2026-07-01Epub Date: 2026-09-09DOI: 10.1016/j.neurot.2026.e00987
Li Cai PhD
{"title":"AAV-mediated Gsx1 gene therapy demonstrates preclinical safety and efficacy in a mouse model of contusion spinal cord injury","authors":"Li Cai PhD","doi":"10.1016/j.neurot.2026.e00987","DOIUrl":"10.1016/j.neurot.2026.e00987","url":null,"abstract":"","PeriodicalId":19159,"journal":{"name":"Neurotherapeutics","volume":"23 4","pages":"Article e00987"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148951308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurotherapeuticsPub Date : 2026-07-01Epub Date: 2026-09-09DOI: 10.1016/j.neurot.2026.e01011
Eugene Bosworth, Samantha Narvaez, Stephanie Hare PhD
{"title":"TMS Motor Cortical Inhibition: Preliminary Analysis Mapping the Cognitive Correlates in People with Schizophrenia","authors":"Eugene Bosworth, Samantha Narvaez, Stephanie Hare PhD","doi":"10.1016/j.neurot.2026.e01011","DOIUrl":"10.1016/j.neurot.2026.e01011","url":null,"abstract":"","PeriodicalId":19159,"journal":{"name":"Neurotherapeutics","volume":"23 4","pages":"Article e01011"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148951313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurotherapeuticsPub Date : 2026-07-01Epub Date: 2026-09-09DOI: 10.1016/j.neurot.2026.e01017
KEITH R. BOOHER, Sean I. Savitz MD, Jarek Aronowski MD, Jonathan A. Claypool JD/PhD, Joseph Ollar MS, David McPherson MD, Melvin E. Klegerman PhD, Shaoling Huang MD/PhD
{"title":"A novel xenon delivery platform for therapeutic cerebroprotection during acute stroke","authors":"KEITH R. BOOHER, Sean I. Savitz MD, Jarek Aronowski MD, Jonathan A. Claypool JD/PhD, Joseph Ollar MS, David McPherson MD, Melvin E. Klegerman PhD, Shaoling Huang MD/PhD","doi":"10.1016/j.neurot.2026.e01017","DOIUrl":"10.1016/j.neurot.2026.e01017","url":null,"abstract":"","PeriodicalId":19159,"journal":{"name":"Neurotherapeutics","volume":"23 4","pages":"Article e01017"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148951438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurotherapeuticsPub Date : 2026-07-01Epub Date: 2026-07-09DOI: 10.1016/j.neurot.2026.e00962
Dong Gyun Ko, Hyun Wook Yang, Hyun Ho Jeong, Min Kyu Park, Bo Young Choi, Seok Joon Won, Raymond A. Swanson, Sang Won Suh
{"title":"Zinc as a phase-specific therapeutic target in hypoglycemia-induced brain injury","authors":"Dong Gyun Ko, Hyun Wook Yang, Hyun Ho Jeong, Min Kyu Park, Bo Young Choi, Seok Joon Won, Raymond A. Swanson, Sang Won Suh","doi":"10.1016/j.neurot.2026.e00962","DOIUrl":"10.1016/j.neurot.2026.e00962","url":null,"abstract":"<div><div>Hypoglycemia remains a major cause of neurological morbidity. However, effective targeted therapies for affected brain regions remain lacking. Although excitotoxicity and energy failure have long been implicated, emerging evidence has identified dysregulated zinc signaling as a central mediator of neuronal vulnerability and recovery. During acute glucose deprivation, synapse-released zinc accumulates intracellularly, impairing mitochondrial function, activating nicotinamide adenine dinucleotide phosphate oxidase, amplifying oxidative stress, and triggering poly (ADP-ribose) polymerase-dependent cell death pathways. Notably, neuronal injury is markedly exacerbated during glucose reperfusion, when zinc–reactive oxygen species coupling drives metabolic collapse. During the recovery phase, zinc contributes to neurogenesis, synaptic remodeling, and circuit repair, underscoring its phase-dependent duality. Here, we synthesize mechanistic and translational evidence supporting zinc as a dynamic regulator of neuronal fate in hypoglycemia-induced brain injury. We propose that zinc functions as a metabolic switch linking acute oxidative injury to subsequent regenerative processes. Importantly, this framework suggests a precision-timed therapeutic strategy involving acute zinc chelation or inhibition of zinc-coupled oxidative pathways during injury, followed by controlled restoration of zinc-dependent signaling during recovery. By redefining hypoglycemic brain injury through phase-specific zinc modulation, we identify new therapeutic opportunities relevant not only to hypoglycemia but also to broader metabolic and ischemic brain disorders.</div></div>","PeriodicalId":19159,"journal":{"name":"Neurotherapeutics","volume":"23 4","pages":"Article e00962"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148422829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurotherapeuticsPub Date : 2026-07-01Epub Date: 2026-08-11DOI: 10.1016/j.neurot.2026.e01043
Cara Ravasio, Mohammed Abumuaileq, Mohigul Nasimova, Jiancheng Xie, Dana C. Shaw, Audrey Lindsay, Catherine J. Chu, Xue Han
{"title":"Insights on the cellular mechanisms of intracranial electrical stimulation using optical imaging in preclinical models","authors":"Cara Ravasio, Mohammed Abumuaileq, Mohigul Nasimova, Jiancheng Xie, Dana C. Shaw, Audrey Lindsay, Catherine J. Chu, Xue Han","doi":"10.1016/j.neurot.2026.e01043","DOIUrl":"10.1016/j.neurot.2026.e01043","url":null,"abstract":"<div><div>Intracranial electrical stimulation is increasingly used to treat neurological and psychiatric conditions. However, the underlying therapeutic mechanisms at the cellular and circuit levels remain poorly understood. Exciting progress in the development of genetically encoded neural activity indicators enables artifact-free, high-spatiotemporal-resolution optical analysis of the impact of intracranial stimulation on membrane potentials, cytosolic calcium, and neurotransmitter and neuromodulator dynamics. Using these optical imaging tools <em>in vivo</em>, in the mammalian brain, preclinical studies probed the effect of intracranial stimulation on individual neurons and population network dynamics across timescales ranging from milliseconds to minutes or more. These studies have revealed complex, stimulation parameter-dependent effects across cell types and provided experimental support for various therapeutic mechanisms. We discuss these studies in the context of clinical observations and highlight the exciting potential of optical imaging in advancing the mechanistic understanding of clinical electrical stimulation in epilepsy and other neurological and psychiatric orders.</div></div>","PeriodicalId":19159,"journal":{"name":"Neurotherapeutics","volume":"23 4","pages":"Article e01043"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148713307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}