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Oligodendroglial heterogeneity in health,disease,and recovery:deeper insights into myelin dynamics

Neural Regeneration Research 2025年第11期20卷 3179-3192页

作者： Pieter-Jan Serneels Julie D.De Schutter Lies De Groef Lieve Moons Steven Bergmans KU Leuven Leuven Brain InstituteDepartment of BiologyAnimal Physiology and Neurobiology DivisionNeural Circuit Development&Regeneration Research GroupLeuvenBelgium KU Leuven Leuven Brain InstituteDepartment of BiologyAnimal Physiology and Neurobiology DivisionCellular Communication&Neurodegeneration Research GroupLeuvenBelgium

Decades of research asserted that the oligodendroglial lineage comprises two cell types:oligodendrocyte precursor cells and ***,recent studies employing single-cell RNA sequencing techniques have uncovered novel cell states,prompting a revision of the existing *** forward,the oligodendroglial lineage should be delineated into five distinct cell states:oligodendrocyte precursor cells,committed oligodendrocyte precursor cells,newly formed oligodendrocytes,myelin-forming oligodendrocytes,and mature *** new classification system enables a deeper understanding of the oligodendroglia in both physiological and pathological *** this uniform terminology will facilitate comparison and integration of data across ***,including the consolidation of findings from various demyelinating models,is essential to better understand the pathogenesis of demyelinating ***,comparing injury models across species with varying regenerative capacities can provide insights that may lead to new therapeutic strategies to overcome remyelination ***,by standardizing terminology and synthesizing data from diverse studies across different animal models,we can enhance our understanding of myelin pathology in central nervous system disorders such as multiple sclerosis,Alzheimer's disease,and amyotrophic lateral sclerosis,all of which involve oligodendroglial and myelin dysfunction.

关键词： animal models demyelination fish mammals multiple sclerosis myelin neurodegeneration oligodendrocytes oligodendroglial lineage remyelination

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Pro-resolving lipid mediator reduces amyloid-β42–induced gene expression in human monocyte–derived microglia

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Neural Regeneration Research 2025年第3期20卷 873-886页

作者： Ying Wang Xiang Zhang Henrik Biverstål Nicolas GBazan Shuai Tan Nailin Li Makiko Ohshima Marianne Schultzberg Xiaofei Li Department of neurobiology Care Sciences&SocietyDivision of NeurogeriatricsKarolinska InstitutetStockholmSweden Department of Neurology Neuroscience CenterThe First Hospital of Jilin UniversityChangchunJilin ProvinceChina Department of Physiology and Pharmacology Karolinska InstitutetStockholmSweden Department of Biosciences and Nutrition Karolinska InstitutetHuddingeSweden Neuroscience Center of Excellence Louisiana State UniversityNew OrleansLAUSA Department of Medicine SolnaClinical Pharmacology GroupKarolinska University HospitalStockholmSweden

Specialized pro-resolving lipid mediators including maresin 1 mediate resolution but the levels of these are reduced in Alzheimer's disease brain, suggesting that they constitute a novel target for the treatment of Alzheimer's disease to prevent/stop inflammation and combat disease pathology. Therefore, it is important to clarify whether they counteract the expression of genes and proteins induced by amyloid-β. With this objective, we analyzed the relevance of human monocyte–derived microglia for in vitro modeling of neuroinflammation and its resolution in the context of Alzheimer's disease and investigated the pro-resolving bioactivity of maresin 1 on amyloid-β42–induced Alzheimer's disease–like inflammation. Analysis of RNA-sequencing data and secreted proteins in supernatants from the monocyte-derived microglia showed that the monocyte-derived microglia resembled Alzheimer's disease–like neuroinflammation in human brain microglia after incubation with amyloid-β42. Maresin 1 restored homeostasis by down-regulating inflammatory pathway related gene expression induced by amyloid-β42 in monocyte-derived microglia, protection of maresin 1 against the effects of amyloid-β42 is mediated by a re-balancing of inflammatory transcriptional networks in which modulation of gene transcription in the nuclear factor-kappa B pathway plays a major part. We pinpointed molecular targets that are associated with both neuroinflammation in Alzheimer's disease and therapeutic targets by maresin 1. In conclusion, monocyte-derived microglia represent a relevant in vitro microglial model for studies on Alzheimer's disease-like inflammation and drug response for individual patients. Maresin 1 ameliorates amyloid-β42–induced changes in several genes of importance in Alzheimer's disease, highlighting its potential as a therapeutic target for Alzheimer's disease.

关键词： Alzheimer's disease amyloid-β maresin microglia monocyte neuroinflammation resolution RNA-sequencing specialized pro-resolving lipid mediator

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Early evolution of vertebrate photoreception: lessons from lampreys and lungfishes

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Integrative Zoology 2009年第1期4卷 87-98页

作者： Shaun P.COLLIN Sensory neurobiology group School of Biomedical SciencesThe University of QueenslandBrisbaneAustralia

Lampreys(Agnatha)and lungfish(Dipnoi)are representatives of the earliest and the intermediate stages in ver-tebrate evolution,respectively,and survived in the Cambrian(approximately 540 mA,lampreys)and Devonian(approximately 400 mA,lungfishes)*** unique phylogenetic position of these two groups presents us with an exciting opportunity to understand life in ancient times and to begin to trace the evolution of vision and photoreception in *** a multidisciplinary approach employing anatomical and molecular techniques,the evolution of photoreception is explored in these extant,living fossils to predict the environmental lighting conditions to which our vertebrate ancestors were *** to expectations,the retinae of the southern hemisphere lamprey(Geotria australis Gray,1851)and the Australian lungfish(Neoceratodus forsteri Krefft,1870)are far from“primitive,”each possessing five types of photoreceptors,many with spectral filters for tuning the *** ultrastructural analysis reveals that all five receptor types in *** are cone-like,whereas *** possesses four cone types and a single type of *** receptor type also contains a different visual pigment(opsin gene);that is,LWS,SWS1,SWS2,RhA and RhB in *** and LWS,SWS1,SWS2,Rh1 and Rh2 in ***,all of which are expressed within the retina and are sensitive to different parts of the electromagnetic spectrum,providing the potential for pentachromatic and tetrachromatic color vision,respectively.

关键词： color vision evolution fishes photoreceptors retina.

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Immunological memory: resting on two shoulders at antigen entrance sites?

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Cellular & Molecular Immunology 2019年第10期16卷 835-836页

作者： Clemens Wulfing Stephan Henne Jasmin Oehlmann Hauke Simon Gunther group for Interdisciplinary neurobiology and Immunology Biozentrum GrindelUniversity of HamburgHamburgGermany

Memory is a term used in two important systems:the nervous system and the immune *** systems need to recognize alterations and threats in an ever-changing *** a consequence,both systems during their evolution perfected their abilities to recall earlier challenges in mounting protective *** ability gives both systems the power to facilitate these protective responses if confronted with the same or similar challenges again.

关键词： protective system. mount

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Amyloid-beta pathology-induced nanoscale synaptic disruption:the case of the GABA_B-GIRK assembly

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Neural Regeneration Research 2025年第5期20卷 1409-1410页

作者： Rafael Lujan Alejandro Martín-Belmonte Sergi Ferré Francisco Ciruela Synaptic Structure Laboratory Instituto de Biomedicina de la UCLM(IB-UCLM)Departamento de Ciencias MédicasInstituto de Investigación en Salud de Castilla-La Mancha(IDISCAM)Facultad de MedicinaUniversidad Castilla-La ManchaCampus BiosanitarioC/AlmansaAlbaceteSpain Integrative neurobiology Section National Institute on Drug AbuseIntramural Research ProgramNational Institutes of HealthBaltimoreMDUSA Pharmacology Unit Department of Pathology and Experimental TherapeuticsSchool of Medicine and Health SciencesInstitute of NeurosciencesUniversity of BarcelonaNeuropharmacology&Pain GroupNeuroscience ProgramBellvitge Institute for Biomedical ResearchL’Hospitalet de LlobregatSpain

Alzheimer's disease (AD) is characterized by an imbalance between excitatory and inhibitory brain networks,leading to aberrant homeostatic synaptic *** has progressively been recognized as syna ptopathy and syna ptic dysfunction has been identified as a key component of its pathogenesis (Schirinzi et al.,2020).Syna ptic dysfunction is believed to precede synapse loss,a primary biological correlate of cognitive decline in AD,inevita bly associated with neuronal death.

关键词： Alzheimer pathology

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Feeling Hot and Cold:Thermal Sensation in Drosophila

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Neuroscience Bulletin 2017年第3期33卷 317-322页

作者： Kun Li Zhefeng Gong Department of neurobiology Key Laboratory of Medical Neurobiology of the Ministry of Health of ChinaZhejiang University School of MedicineHangzhou 310058China

Sensing environmental temperature is crucial for animal *** model animal,Drosophila melanogaster,can be investigated with a large number of genetic tools,which have greatly facilitated studies of the cellular and molecular mechanisms of thermal *** the molecular level,a group of proteins,including Transient Receptor Potential channels and ionotropic receptors,have been characterized as potential thermal sensors in both larval and adult *** the cellular and circuit levels,peripheral and central thermosensory neurons have been *** interestingly,thermal information has been found to be specifically encoded by specific central *** this short review,we mainly survey the progress in understanding the molecular mechanisms of thermosensation and the neuronal mechanisms of thermal information processing in the brain of *** recent temperature-related findings such as its impact on neurosecretion and thermotactic behavior in Drosophila are also introduced.

关键词： Drosophila Temperature Thermal sensation

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Altered electroencephalographic networks in developmental dyslexia after remedial training:a prospective case-control study

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Neural Regeneration Research 2021年第4期16卷 734-743页

作者： Juliana A.Dushanova Stefan ATsokov Institute of neurobiology Bulgarian Academy of SciencesSofiaBulgaria

Electroencephalographic studies using graph theoretic analysis have found aberrations in functional connectivity in children with developmental ***,how the training with visual tasks can change the functional connectivity of the semantic network in developmental dyslexia is still *** looked for differences in local and global topological properties of functional networks between 21 healthy controls and 22 dyslexic children(8–9 years old)before and after training with visual tasks in this prospective case-control *** minimum spanning tree method was used to construct the subjects’brain networks in multiple electroencephalographic frequency ranges during a visual word/pseudoword discrimination *** found group differences in the theta,alpha,beta and gamma bands for four graph measures suggesting a more integrated network topology in dyslexics before the training compared to *** training,the network topology of dyslexic children had become more segregated and similar to that of the *** theθ,αandβ1-frequency bands,compared to the controls,the pre-training dyslexics exhibited a reduced degree and betweenness centrality of the left anterior temporal and parietal *** simultaneous appearance in the left hemisphere of hubs in temporal and parietal(α,β1),temporal and superior frontal cortex(θ,α),parietal and occipitotemporal cortices(β1),identified in the networks of normally developing children was not present in the brain networks of *** training,the hub distribution for dyslexics in the theta and beta1 bands had become similar to that of the *** summary,our findings point to a less efficient network configuration in dyslexics compared to a more optimal global organization in the *** is the first study to investigate the topological organization of functional brain networks of Bulgarian dyslexic *** for the study was obtained from the Ethics Committee of the Institute of Neur

关键词： adjusted post-training network developmental dyslexia EEG frequency oscillations functional connectivity visual training tasks visual word/pseudoword discrimination

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Handling iron in restorative neuroscience

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Neural Regeneration Research 2015年第10期10卷 1558-1559页

作者： Lisa Junl Routhe Torben Moos Laboratory of neurobiology Biomedicine Group Department of Health Science and Technology Aalborg University

The transition metal iron exerts essential roles in the central nervous system（CNS）for oxygen transport,myelin formation,and synthesis of *** redox active,iron switches between ferrous and ferric *** between oxygen ... 详细信息

关键词： Handling iron in restorative neuroscience

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Decorin treatment of spinal cord injury

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Neural Regeneration Research 2014年第18期9卷 1653-1656页

作者： Maryam Esmaeili Martin Berry Ann Logan Zubair Ahmed Neurotrauma Research group Neurobiology SectionSchool of Clinical and Experimental MedicineUniversity of Birmingham

The scarring response after a penetrant central nervous system injury results from the interaction between invading leptominingeal/pericyte-derived fibroblasts and endogenous reactive astrocytes about the wound margin. Extracellular matrix and scar-derived axon growth inhibitory mole- cules fill the lesion site providing both a physical and chemical barrier to regenerating axons. Dec orin, a small leucine-rich chondroitin-dermatan sulphate proteoglycan expressed by neurons and astrocytes in the central nervous system, is both anti-fibrotic and anti-inflammatory and attenu- ates the formation and partial dissolution of established and chronic scars. Here, we discuss the potential of using Decorin to antagonise scarring in the central nervous system.

关键词： spinal cord injury Decorin transforming growth factor-beta scarring chondroiti^sulphate proteoglycan matrix metalloproteases

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SYNGR4 and PLEKHB1 deregulation in motor neurons of amyotrophic lateral sclerosis models: potential contributions to pathobiology

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Neural Regeneration Research 2022年第2期17卷 266-270页

作者： Rita F.Marques Kent E.Duncan Institute for Biochemistry and Molecular Biology Department of ChemistryUniversity of HamburgHamburgGermany Neuronal Translational Control Research group Center for Molecular Neurobiology Hamburg(ZMNH)University Medical Center Hamburg-EppendorfHamburgGermany

Amyotrophic lateral sclerosis is the most common adult-onset neurodegenerative disease affecting motor neurons. Its defining feature is progressive loss of motor neuron function in the cortex, brainstem, and spinal cord, leading to paralysis and death. Despite major advances in identifying genes that can cause disease when mutated and model the disease in animals and cellular models, it still remains unclear why motor symptoms suddenly appear after a long pre-symptomatic phase of apparently normal function. One hypothesis is that age-related deregulation of specific proteins within key cell types, especially motor neurons themselves, initiates disease symptom appearance and may also drive progressive degeneration. Genome-wide in vivo cell-type-specific screening tools are enabling identification of candidates for such proteins. In this minireview, we first briefly discuss the methodology used in a recent study that applied a motor neuron-specific RNASeq screening approach to a standard model of TAR DNA-binding protein-43(TDP-43)-driven amyotrophic lateral sclerosis. A key finding of this study is that synaptogyrin-4 and pleckstrin homology domain-containing family B member 1 are also deregulated at the protein level within motor neurons of two unrelated mouse models of mutant TDP-43 driven amyotrophic lateral sclerosis. Guided by what is known about molecular and cellular functions of these proteins and their orthologs, we outline here specific hypotheses for how changes in their levels might potentially alter cellular physiology of motor neurons and detrimentally affect motor neuron function. Where possible, we also discuss how this information could potentially be used in a translational context to develop new therapeutic strategies for this currently incurable, devastating disease.

关键词： amyotrophic lateral sclerosis glucagon-like peptide-1 receptor motor neuron disease mouse model neurodegeneration phosphatidylserine pleckstrin homology domain synaptogyrin TAR DNA-binding protein-43 vesicle transport

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