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Cover Image, Volume 73, Issue 7 封面图片,第73卷,第7期
IF 5.4 2区 医学
Glia Pub Date : 2025-05-29 DOI: 10.1002/glia.24556
Joseph Matthew Holden, Andrew M. Boal, Lauren Katie Wareham, David John Calkins
{"title":"Cover Image, Volume 73, Issue 7","authors":"Joseph Matthew Holden,&nbsp;Andrew M. Boal,&nbsp;Lauren Katie Wareham,&nbsp;David John Calkins","doi":"10.1002/glia.24556","DOIUrl":"https://doi.org/10.1002/glia.24556","url":null,"abstract":"<p>Cover Illustration: Stochastically labeled astrocytes (cyan) and Müller glia (magenta) contacting blood vessels (orange) and neural cell bodies and axons bundles (green) in a mouse retina. (See Holden, JM, et al, https://doi.org/10.1002/glia.70022)\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"73 7","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.24556","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171679","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}
引用次数: 0
Myelin Lipid Composition in the Central Nervous System Is Regionally Distinct and Requires Mechanistic Target of Rapamycin Signaling 中枢神经系统髓磷脂脂质组成具有区域差异,需要雷帕霉素信号传导的机制靶点。
IF 5.1 2区 医学
Glia Pub Date : 2025-05-26 DOI: 10.1002/glia.70042
Marie L. Mather, Angelina V. Evangelou, Jennifer N. Bourne, Wendy B. Macklin, Teresa L. Wood
{"title":"Myelin Lipid Composition in the Central Nervous System Is Regionally Distinct and Requires Mechanistic Target of Rapamycin Signaling","authors":"Marie L. Mather,&nbsp;Angelina V. Evangelou,&nbsp;Jennifer N. Bourne,&nbsp;Wendy B. Macklin,&nbsp;Teresa L. Wood","doi":"10.1002/glia.70042","DOIUrl":"10.1002/glia.70042","url":null,"abstract":"<p>Cholesterol is highly enriched in the myelin sheath and is often dysregulated in neurodegenerative diseases affecting myelin integrity. Despite the prominence of promyelinating drugs targeting sterol synthesis and our increasing knowledge of oligodendrocyte heterogeneity, few studies have defined regional differences in lipid metabolism across the CNS. Previous analyses revealed that spinal cord oligodendroglia have a higher capacity for endogenous cholesterol biosynthesis compared to brain oligodendroglia. Our current findings reveal that, in contrast to spinal cord oligodendroglia, brain oligodendroglia have a higher capacity to uptake and respond to extracellular lipoproteins. Moreover, brain myelin has lower lipid concentrations compared to spinal cord myelin. Comparisons between spinal cord and subregions of the brain revealed that myelin lipid content is correlated to average axon diameter such that regions with smaller diameter axons, such as corpus callosum and cortical gray matter, have myelin with lower cholesterol and phospholipid content compared to regions containing higher diameter axons, including spinal cord and brain stem. When differentiated on synthetic nanofibers in vitro, spinal cord oligodendrocytes maintained a higher cholesterol content compared to brain oligodendrocytes irrespective of fiber diameter but displayed fiber diameter-dependent changes in fatty acid content. Establishment and maintenance of regional differences in myelin composition are supported by the mechanistic target of rapamycin (mTOR) signaling, as deletion of mTOR in oligodendroglia abolishes regional differences in myelin lipid content, with the greatest decreases in spinal cord and brain stem. These data highlight multiple differences in brain and spinal cord lipid metabolism, which result in regionally distinct myelin composition.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"73 9","pages":"1841-1859"},"PeriodicalIF":5.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.70042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144141370","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}
引用次数: 0
Spatial Transcriptomic Analysis Reveals HDAC Inhibition Modulates Microglial Dynamics to Protect Against Ischemic Stroke in Mice 空间转录组学分析揭示HDAC抑制调节小胶质细胞动力学以保护小鼠缺血性中风。
IF 5.1 2区 医学
Glia Pub Date : 2025-05-26 DOI: 10.1002/glia.70035
Kevin Jayaraj, Ritesh Kumar, Sukanya Shyamasundar, Thiruma V. Arumugam, Jai S. Polepalli, S. Thameem Dheen
{"title":"Spatial Transcriptomic Analysis Reveals HDAC Inhibition Modulates Microglial Dynamics to Protect Against Ischemic Stroke in Mice","authors":"Kevin Jayaraj,&nbsp;Ritesh Kumar,&nbsp;Sukanya Shyamasundar,&nbsp;Thiruma V. Arumugam,&nbsp;Jai S. Polepalli,&nbsp;S. Thameem Dheen","doi":"10.1002/glia.70035","DOIUrl":"10.1002/glia.70035","url":null,"abstract":"<p>Ischemic stroke significantly contributes to global morbidity and disability through a cascade of neurological responses. Microglia, the immune modulators within the brain, exhibit dual roles in exacerbating and ameliorating ischemic injury through neuroinflammatory and neuroprotective roles, respectively. Despite emerging insights into microglia's role in neuronal support, the potential of epigenetic intervention to modulate microglial activity remains largely unexplored. We have previously shown that sodium butyrate, a histone deacetylase inhibitor (HDACi) epigenetically regulates the inflammatory response of microglia after ischemic stroke, and this study was aimed at characterizing the transcriptomic profiles of microglia and their spatial distribution in the stroke brain following HDACi administration. We hypothesized that the administration of HDACi epigenetically modulates microglial activation and a region-specific microglial phenotype in the stroke brain, shifting their phenotype from neurotoxic to neuroprotective and facilitating neuronal repair in the ischemic penumbra. Utilizing a rodent model of stroke, spatial transcriptomics and 3D morphometric reconstruction techniques were employed to investigate microglial responses in critical penumbral regions following HDACi administration. We found HDACi significantly altered the microglial transcriptomic landscape involving biological pathways of neuroinflammation, neuroprotection, and phagocytosis, as well as morphological phenotype, promoting a shift toward reparative, neurotrophic profiles within the ischemic penumbra. These changes were associated with enhanced neuronal survival and reduced neuroinflammation in specific regions in the ischemic brain. By elucidating the mechanisms through which HDACi influences microglial function, our findings propose therapeutic avenues for neuroprotection and rehabilitation in ischemic stroke, and possibly other neurodegenerative conditions that involve microglia-mediated neuroinflammation.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"73 9","pages":"1817-1840"},"PeriodicalIF":5.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.70035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140948","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}
引用次数: 0
Morphological Characterization of Glial Cells Surrounding Cajal's Initial Glomerulus of the Dorsal Root Ganglion Neurons Revealed Myelinating Schwann Cell Production 背根神经节神经元Cajal初始肾小球周围胶质细胞的形态学特征揭示髓鞘性雪旺细胞的产生。
IF 5.1 2区 医学
Glia Pub Date : 2025-05-26 DOI: 10.1002/glia.70046
Taro Koike, Souichi Oe, Yukie Hirahara, Shinichi Hayashi, Ryohei Seki-Omura, Yosuke Nakano, Yuki Sato, Hikaru Iwashita, Mitsuyo Maeda, Yosky Kataoka, Susumu Tanaka, Tetsuji Mori, Hisao Yamada, Masaaki Kitada
{"title":"Morphological Characterization of Glial Cells Surrounding Cajal's Initial Glomerulus of the Dorsal Root Ganglion Neurons Revealed Myelinating Schwann Cell Production","authors":"Taro Koike,&nbsp;Souichi Oe,&nbsp;Yukie Hirahara,&nbsp;Shinichi Hayashi,&nbsp;Ryohei Seki-Omura,&nbsp;Yosuke Nakano,&nbsp;Yuki Sato,&nbsp;Hikaru Iwashita,&nbsp;Mitsuyo Maeda,&nbsp;Yosky Kataoka,&nbsp;Susumu Tanaka,&nbsp;Tetsuji Mori,&nbsp;Hisao Yamada,&nbsp;Masaaki Kitada","doi":"10.1002/glia.70046","DOIUrl":"10.1002/glia.70046","url":null,"abstract":"<div>\u0000 \u0000 <p>Satellite glial cells (SGCs) cover the following two areas of a large-diameter dorsal root ganglion (DRG) neuron: neuronal soma and initial region of the neuronal projection, namely Cajal's initial glomerulus (IG). The morphological and functional features of SGCs covering the neuronal soma have been studied extensively. However, those of SGCs surrounding the IG [periaxonal SGCs (aSGCs)] are poorly understood. In the present study, we aimed to investigate the histological characteristics of aSGCs in adult rats. The IG's length was approximately 120 μm, where approximately 10 aSGCs surrounded the IG. The SGC markers, including Kca2.3, Kir4.1, and FABP7, were obviously expressed in aSGCs located in the proximal and middle parts of the IG. Contrarily, the signal intensity of these cell markers decreased in aSGCs surrounding the distal part of the IG, and these cells expressed the promyelinating Schwann cell marker Oct-6. Electron microscopy revealed aSGCs winding their thin processes around the IG. Additionally, the 5-bromo-2′-deoxyuridine incorporation study demonstrated that these glial cells matured into myelinating Schwann cells. Oct-6-positive aSGCs were also found in the IG in the human DRG. Our results collectively imply that the IG is involved in the differentiation and maturation of Schwann cells, where aSGCs gradually change their ultrastructural characteristics and immunoreactivity to differentiate and mature into myelinating Schwann cells through the promyelinating stage, and that this differentiation and maturation system may be conserved among mammals.</p>\u0000 </div>","PeriodicalId":174,"journal":{"name":"Glia","volume":"73 9","pages":"1883-1898"},"PeriodicalIF":5.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148746","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}
引用次数: 0
Mapping Glial Autophagy Dynamics in an Amyotrophic Lateral Sclerosis Mouse Model Reveals Microglia and Astrocyte Autophagy Dysfunction 在肌萎缩侧索硬化小鼠模型中绘制胶质细胞自噬动力学揭示小胶质细胞和星形胶质细胞自噬功能障碍。
IF 5.1 2区 医学
Glia Pub Date : 2025-05-22 DOI: 10.1002/glia.70045
Nirma D. Perera, Subhavi De Silva, Doris Tomas, Brittany Cuic, Bradley J. Turner
{"title":"Mapping Glial Autophagy Dynamics in an Amyotrophic Lateral Sclerosis Mouse Model Reveals Microglia and Astrocyte Autophagy Dysfunction","authors":"Nirma D. Perera,&nbsp;Subhavi De Silva,&nbsp;Doris Tomas,&nbsp;Brittany Cuic,&nbsp;Bradley J. Turner","doi":"10.1002/glia.70045","DOIUrl":"10.1002/glia.70045","url":null,"abstract":"<p>Amyotrophic lateral sclerosis (ALS) is defined by motor neuron death. However, recent research has identified non-cell-autonomous mechanisms, with significant involvement of glia in disease progression. We link previous observations of intracellular protein aggregates in glia to the autophagy pathway, the primary mediator of intracellular degradation of large protein aggregates. While dysfunctional autophagy is reported in ALS motor neurons, pre-clinical and clinical outcomes of autophagy modulators have been inconsistent, indicating the need for a nuanced understanding of autophagy dynamics across CNS cell types and ALS-affected regions. We hypothesized that glial autophagy is defective in ALS, with glial-type-specific dysfunction. To investigate in vivo autophagy dynamics, we intercrossed SOD1<sup>G93A</sup> mice with transgenic RFP-EGFP-LC3 autophagy reporter mice, enabling the quantification of autophagy degradation, termed flux. Investigation of autophagy dynamics in SOD1 oligodendrocytes, microglia, and astrocytes at key disease stages uncovered useful insights. While oligodendrocytes seemed to mount effective compensatory autophagic responses to combat mutant SOD1, significantly increased autophagy flux was observed in symptomatic spinal microglia and astrocytes in comparison to controls. Symptomatic SOD1 astrocytes displayed greater autophagy dysfunction compared to microglia, with subcellular analysis revealing cell compartment-specific, transient autophagy defects that returned to control levels by end stage. Interestingly, spinal glia showed more pronounced and earlier autophagy dysfunction compared to motor cortex glia, where autophagy dysfunction emerged later in disease end stage, aligning with greater spinal cord pathology reported in this model. Our results suggest that cell-type- and time-specific targeting might be essential when developing autophagy therapeutics for ALS, with prioritization of astrocytic autophagy modulation.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"73 9","pages":"1860-1882"},"PeriodicalIF":5.1,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.70045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144118467","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}
引用次数: 0
What Does Iron Mean to an Oligodendrocyte? 铁对少突胶质细胞意味着什么?
IF 5.1 2区 医学
Glia Pub Date : 2025-05-22 DOI: 10.1002/glia.70043
Quinn W. Wade, James R. Connor
{"title":"What Does Iron Mean to an Oligodendrocyte?","authors":"Quinn W. Wade,&nbsp;James R. Connor","doi":"10.1002/glia.70043","DOIUrl":"10.1002/glia.70043","url":null,"abstract":"<p>Iron is essential for life and plays a key role in multiple fundamental cellular functions. The brain has the highest rate of energy consumption, and within the brain, oligodendrocytes have the highest level of oxidative metabolism per volume. Oligodendrocytes also stain the strongest for iron. The high requirement for iron is related to an oligodendrocyte's primary function to produce the myelin sheath, which requires iron as a cofactor. In addition to the high-energy demands that accompany the production of such dense and extensive membranous sheaths, iron is also required for lipid synthesis. Although the involvement of iron in oligodendrocyte functioning is clear, how iron is specifically acquired and utilized by oligodendrocytes is not completely understood. The purpose of this review is to provide a complete and thorough overview of the role of iron in oligodendrocytes. Here, we discuss in detail what is currently known about key iron transport proteins that participate in the balance of iron in oligodendrocytes. Understanding how oligodendrocytes utilize iron is beneficial in understanding dysmyelinating diseases, and the knowledge could be utilized to develop treatment options.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"73 9","pages":"1784-1804"},"PeriodicalIF":5.1,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.70043","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144118469","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}
引用次数: 0
Glial Versus Neuronal Na+/K+-ATPase in Activity-Evoked K+ Clearance and Their Sensitivity to Elevated Extracellular K+ 神经胶质与神经元Na+/K+- atp酶活性诱导的K+清除及其对细胞外K升高的敏感性。
IF 5.1 2区 医学
Glia Pub Date : 2025-05-19 DOI: 10.1002/glia.70034
Brian Skriver Nielsen, Brian Roland Larsen, Afnan Bilal Ghazal, Adriana Katz, K. C. Brennan, Steven J. D. Karlish, Nanna MacAulay
{"title":"Glial Versus Neuronal Na+/K+-ATPase in Activity-Evoked K+ Clearance and Their Sensitivity to Elevated Extracellular K+","authors":"Brian Skriver Nielsen,&nbsp;Brian Roland Larsen,&nbsp;Afnan Bilal Ghazal,&nbsp;Adriana Katz,&nbsp;K. C. Brennan,&nbsp;Steven J. D. Karlish,&nbsp;Nanna MacAulay","doi":"10.1002/glia.70034","DOIUrl":"10.1002/glia.70034","url":null,"abstract":"<p>Neuronal activity in the central nervous system is associated with a [K<sup>+</sup>]<sub>o</sub> transient that is swiftly cleared from the extracellular space, predominantly by the Na<sup>+</sup>/K<sup>+</sup>-ATPase. The temporal contribution of the glial (α2β2) and the neuronal (α3β1) isoform complexes remains unresolved due to the lack of an isoform-specific inhibitor. The role of the two main brain isoform complexes in spreading depression (SD) also remains unresolved, but an SD-mediated increase in [K<sup>+</sup>]<sub>o</sub> may suppress Na<sup>+</sup>/K<sup>+</sup>-ATPase activity and thereby promote SD propagation. As demonstrated here, inhibitor assays of purified recombinant human and heterologously expressed rat Na<sup>+</sup>/K<sup>+</sup>-ATPase isoforms demonstrated significant selectivity for inhibition of α2β2 compared to α3β1 isoform complexes by a cyclobutyl perhydro-1,4-oxazepine derivative of digoxin (DcB). This phenomenon was utilized to demonstrate the temporal role of α2β2 and α3β1 in [K<sup>+</sup>]<sub>o</sub> clearance in electrically stimulated rat hippocampal slices, as monitored with ion-sensitive microelectrodes. The observations demonstrate a role of α2β2 in regulating the [K<sup>+</sup>]<sub>o</sub> during electrical stimulus of hippocampal slices, whereas α3β1 serves to restore [K<sup>+</sup>]<sub>o</sub> to baseline post-stimulus. SD can be triggered by elevated [K<sup>+</sup>]<sub>o</sub> but elevated [K<sup>+</sup>]<sub>o</sub> did not reduce the activity of the Na<sup>+</sup>/K<sup>+</sup>-ATPase or the glutamate transporters in hippocampal brain slices or upon heterologous expression of individual isoforms in <i>Xenopus</i> oocytes. Our results demonstrate the temporal contribution of the glial and neuronal Na<sup>+</sup>/K<sup>+</sup>-ATPase isoform complexes to clearance of [K<sup>+</sup>]<sub>o</sub> but do not support the concept that direct effects of elevated [K<sup>+</sup>]<sub>o</sub> on Na<sup>+</sup>/K<sup>+</sup>-ATPase activity or glutamate transport underlie SD propagation.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"73 9","pages":"1805-1816"},"PeriodicalIF":5.1,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.70034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144092397","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}
引用次数: 0
Oligodendrogenesis in Evolution, Development and Adulthood 进化、发育和成人期的少突发生。
IF 5.1 2区 医学
Glia Pub Date : 2025-05-15 DOI: 10.1002/glia.70033
Hao Hu, Tianhao Gao, Jingwei Zhao, Huiliang Li
{"title":"Oligodendrogenesis in Evolution, Development and Adulthood","authors":"Hao Hu,&nbsp;Tianhao Gao,&nbsp;Jingwei Zhao,&nbsp;Huiliang Li","doi":"10.1002/glia.70033","DOIUrl":"10.1002/glia.70033","url":null,"abstract":"<p>Oligodendrogenesis and myelin formation are important processes in the central nervous system (CNS) of jawed vertebrates, underpinning the highly efficient neural computation within the compact CNS architecture. Myelin, the dense lipid sheath wrapped around axons, enables rapid signal transmission and modulation of neural circuits. Oligodendrocytes are generated from oligodendrocyte precursor cells (OPCs), which are widely distributed in the adult CNS and continue to produce new oligodendrocytes throughout life. Adult oligodendrogenesis is integral to adaptive myelination, which fine-tunes neural circuits in response to neuronal activity, contributing to neuroplasticity, learning, and memory. Emerging evidence also highlights the role of oligodendrogenesis in specialized brain regions, linking oligodendrocytes to metabolic and homeostatic functions. In the aging and diseased brain, dysregulated oligodendrogenesis exacerbates myelin loss and may contribute to pathogenesis. In addition, maladaptive myelination driven by aberrant neuronal activity could sustain a dysfunction in conditions such as epilepsy. This review summarizes the current understanding of oligodendrogenesis, with insights into its evolution, regulation, and impact on aging and disease.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"73 9","pages":"1770-1783"},"PeriodicalIF":5.1,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144075001","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}
引用次数: 0
Microglial IKKβ Alters Central and Peripheral Immune Activity at Distinct Time Points After Spinal Cord Injury 小胶质细胞IKKβ在脊髓损伤后不同时间点改变中枢和外周免疫活性
IF 5.4 2区 医学
Glia Pub Date : 2025-05-10 DOI: 10.1002/glia.70030
Micaela L. O'Reilly, Mariah J. Wulf, Theresa M. Connors, Ying Jin, Frank Bearoff, Julien Bouyer, Sandhya Kortagere, John R. Bethea, Veronica J. Tom
{"title":"Microglial IKKβ Alters Central and Peripheral Immune Activity at Distinct Time Points After Spinal Cord Injury","authors":"Micaela L. O'Reilly,&nbsp;Mariah J. Wulf,&nbsp;Theresa M. Connors,&nbsp;Ying Jin,&nbsp;Frank Bearoff,&nbsp;Julien Bouyer,&nbsp;Sandhya Kortagere,&nbsp;John R. Bethea,&nbsp;Veronica J. Tom","doi":"10.1002/glia.70030","DOIUrl":"10.1002/glia.70030","url":null,"abstract":"<p>After high-level spinal cord injury (SCI), persistently reactive microglia drive widespread plasticity throughout the neuraxis. Plasticity in the thoracolumbar cord, a region corresponding to the spinal sympathetic reflex (SSR) circuit, contributes to the development of sympathetic dysfunction and associated immune disorders. The transcription factor NF-κB is activated after SCI, promoting a pro-inflammatory loop by driving the expression of inflammatory mediators which further activate NF-κB signaling. We hypothesize that microglial NF-κB signaling via IKKβ modulates microglial activity, impacting central and peripheral immune activity related to the SSR circuit post-SCI. We assessed the effect of deleting canonical IKKβ in CNS-resident microglia, its impact on microglial activation, polarization, central transcriptional activity, and peripheral immune activity at 1- and 4-week post-SCI (wpi). Transcriptomic analyses reveal microglial IKKβ influences immune-related pathways in the thoracolumbar cord at 1 wpi. We show that inhibition of microglial NF-κB signaling via deletion of the activator IKKβ mitigates injury-induced increases in “proinflammatory” M1 microglia in the thoracolumbar cord at 4 wpi and increases the quantity of splenocytes at 1 wpi. This study advances our understanding of how microglial IKKβ signaling shapes the neuroimmune response and a peripheral immune organ after SCI.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"73 8","pages":"1746-1766"},"PeriodicalIF":5.4,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.70030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143954372","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}
引用次数: 0
Interplay Between Schwann Cells and Peripheral Cancers: Mechanisms and Therapeutic Targets in Cancer Progression 雪旺细胞与外周肿瘤的相互作用:癌症进展的机制和治疗靶点。
IF 5.4 2区 医学
Glia Pub Date : 2025-05-10 DOI: 10.1002/glia.70032
Ziwan He, Furui Liu, Lin Lin, Zhihui Huang, Yongjie Wang
{"title":"Interplay Between Schwann Cells and Peripheral Cancers: Mechanisms and Therapeutic Targets in Cancer Progression","authors":"Ziwan He,&nbsp;Furui Liu,&nbsp;Lin Lin,&nbsp;Zhihui Huang,&nbsp;Yongjie Wang","doi":"10.1002/glia.70032","DOIUrl":"10.1002/glia.70032","url":null,"abstract":"<div>\u0000 \u0000 <p>Cancer, a leading global health concern, is characterized by uncontrolled proliferation of cells, high invasion into surrounding tissues, and eventual metastasis to distant organs. The complexity of cancer is further amplified by diverse cellular components within the tumor microenvironment (TME), encompassing both cancerous and non-cancerous cells that fuel tumorigenesis and progression. Schwann cells (SCs), the main glial cells of the peripheral nervous system, have emerged as crucial components within the TME in cancer development. Here, we summarize the multifaceted roles of SCs in tumor growth, epithelial-mesenchymal transition, perineural invasion, and chemotherapy resistance. This review focuses on the effects of SCs on eight distinct peripheral cancer types, particularly pancreatic, lung, and colorectal cancers, along with cancer-related pain, one of the most common symptoms that affect quality of life and prognosis in cancer patients. Furthermore, we emphasize the therapeutic potential of SCs by delving into advanced technologies and clinical strategies related to SCs, which make us advocate for further research to elucidate the events and molecular mechanisms underlying the SC-cancer relationship. Translating these insights into clinical applications may offer new hope for improved cancer management and patient outcomes.</p>\u0000 </div>","PeriodicalId":174,"journal":{"name":"Glia","volume":"73 8","pages":"1553-1564"},"PeriodicalIF":5.4,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143956452","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}
引用次数: 0
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