Glia最新文献

筛选
英文 中文
Cover Image, Volume 72, Issue 8 封面图片,第 72 卷第 8 期
IF 5.4 2区 医学
Glia Pub Date : 2024-06-28 DOI: 10.1002/glia.24407
Sarah Wirth, Annika Schlößer, Antonia Beiersdorfer, Michaela Schweizer, Marcel S. Woo, Manuel A. Friese, Christian Lohr, Katarzyna M. Grochowska
{"title":"Cover Image, Volume 72, Issue 8","authors":"Sarah Wirth,&nbsp;Annika Schlößer,&nbsp;Antonia Beiersdorfer,&nbsp;Michaela Schweizer,&nbsp;Marcel S. Woo,&nbsp;Manuel A. Friese,&nbsp;Christian Lohr,&nbsp;Katarzyna M. Grochowska","doi":"10.1002/glia.24407","DOIUrl":"https://doi.org/10.1002/glia.24407","url":null,"abstract":"<p>Cover Illustration: The upregulation of glial fibrillary acidic protein (GFAP; fire lookup table, the brightness of the color is proportional to the pixel intensity), an intermediate filament protein, is a marker of astrocytic reactivity associated with Alzheimer's disease (AD) pathology. The treatment of cultured astrocytes with a modified form of amyloid-β, Aβ3(pE)- 42, leads to the prominent GFAP upregulation. (See Wirth, S., et al, https://doi.org/10.1002/glia.24539)\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"72 8","pages":"C1"},"PeriodicalIF":5.4,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.24407","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141488922","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
Neuroinflammatory reactive astrocyte formation correlates with adverse outcomes in perinatal white matter injury 神经炎症反应性星形胶质细胞的形成与围产期白质损伤的不良后果相关。
IF 5.4 2区 医学
Glia Pub Date : 2024-06-26 DOI: 10.1002/glia.24575
Patricia Renz, Marel Steinfort, Valérie Haesler, Vera Tscherrig, Eric J. Huang, Manideep Chavali, Shane Liddelow, David H. Rowitch, Daniel Surbek, Andreina Schoeberlein, Amanda Brosius Lutz
{"title":"Neuroinflammatory reactive astrocyte formation correlates with adverse outcomes in perinatal white matter injury","authors":"Patricia Renz,&nbsp;Marel Steinfort,&nbsp;Valérie Haesler,&nbsp;Vera Tscherrig,&nbsp;Eric J. Huang,&nbsp;Manideep Chavali,&nbsp;Shane Liddelow,&nbsp;David H. Rowitch,&nbsp;Daniel Surbek,&nbsp;Andreina Schoeberlein,&nbsp;Amanda Brosius Lutz","doi":"10.1002/glia.24575","DOIUrl":"10.1002/glia.24575","url":null,"abstract":"<p>Perinatal white matter injury (WMI) is the leading cause of long-term neurological morbidity in infants born preterm. Neuroinflammation during a critical window of early brain development plays a key role in WMI disease pathogenesis. The mechanisms linking inflammation with the long-term myelination failure that characterizes WMI, however, remain unknown. Here, we investigate the role of astrocyte reactivity in WMI. In an experimental mouse model of WMI, we demonstrate that WMI disease outcomes are improved in mutant mice lacking secretion of inflammatory molecules TNF-α, IL-1α, and C1q known, in addition to other roles, to induce the formation of a neuroinflammatory reactive astrocyte substate. We show that astrocytes express molecular signatures of the neuroinflammatory reactive astrocyte substate in both our WMI mouse model and human tissue affected by WMI, and that this gene expression pattern is dampened in injured mutant mice. Our data provide evidence that a neuroinflammatory reactive astrocyte substate correlates with adverse WMI disease outcomes, thus highlighting the need for further investigation of these cells as potential causal players in WMI pathology.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"72 9","pages":"1663-1673"},"PeriodicalIF":5.4,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.24575","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141454168","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
Satellite glial cell manipulation prior to axotomy enhances developing dorsal root ganglion central branch regrowth into the spinal cord 在轴突切断术前操纵卫星神经胶质细胞可促进发育中的背根神经节中央分支重新长入脊髓
IF 5.4 2区 医学
Glia Pub Date : 2024-06-22 DOI: 10.1002/glia.24581
Robin I. Brown, Heather M. Barber, Sarah Kucenas
{"title":"Satellite glial cell manipulation prior to axotomy enhances developing dorsal root ganglion central branch regrowth into the spinal cord","authors":"Robin I. Brown,&nbsp;Heather M. Barber,&nbsp;Sarah Kucenas","doi":"10.1002/glia.24581","DOIUrl":"10.1002/glia.24581","url":null,"abstract":"<p>The central and peripheral nervous systems (CNS and PNS, respectively) exhibit remarkable diversity in the capacity to regenerate following neuronal injury with PNS injuries being much more likely to regenerate than those that occur in the CNS. Glial responses to damage greatly influence the likelihood of regeneration by either promoting or inhibiting axonal regrowth over time. However, despite our understanding of how some glial lineages participate in nerve degeneration and regeneration, less is known about the contributions of peripheral satellite glial cells (SGC) to regeneration failure following central axon branch injury of dorsal root ganglia (DRG) sensory neurons. Here, using in vivo, time-lapse imaging in larval zebrafish coupled with laser axotomy, we investigate the role of SGCs in axonal regeneration. In our studies we show that SGCs respond to injury by relocating their nuclei to the injury site during the same period that DRG neurons produce new central branch neurites. Laser ablation of SGCs prior to axon injury results in more neurite growth attempts and ultimately a higher rate of successful central axon regrowth, implicating SGCs as inhibitors of regeneration. We also demonstrate that this SGC response is mediated in part by ErbB signaling, as chemical inhibition of this receptor results in reduced SGC motility and enhanced central axon regrowth. These findings provide new insights into SGC-neuron interactions under injury conditions and how these interactions influence nervous system repair.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"72 10","pages":"1766-1784"},"PeriodicalIF":5.4,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.24581","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141501226","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
Macrophage GIT1 promotes oligodendrocyte precursor cell differentiation and remyelination after spinal cord injury 巨噬细胞 GIT1 促进脊髓损伤后少突胶质前体细胞分化和髓鞘再形成
IF 5.4 2区 医学
Glia Pub Date : 2024-06-20 DOI: 10.1002/glia.24577
Hao Liu, Jiang Yi, Chenxi Zhang, Yin Li, Qian Wang, Shenyu Wang, Siming Dai, Ziyang Zheng, Tao Jiang, Peng Gao, Ao Xue, Zhenfei Huang, Fanqi Kong, Yongxiang Wang, Baorong He, Xiaodong Guo, Qingqing Li, Jian Chen, Guoyong Yin, Shujie Zhao
{"title":"Macrophage GIT1 promotes oligodendrocyte precursor cell differentiation and remyelination after spinal cord injury","authors":"Hao Liu,&nbsp;Jiang Yi,&nbsp;Chenxi Zhang,&nbsp;Yin Li,&nbsp;Qian Wang,&nbsp;Shenyu Wang,&nbsp;Siming Dai,&nbsp;Ziyang Zheng,&nbsp;Tao Jiang,&nbsp;Peng Gao,&nbsp;Ao Xue,&nbsp;Zhenfei Huang,&nbsp;Fanqi Kong,&nbsp;Yongxiang Wang,&nbsp;Baorong He,&nbsp;Xiaodong Guo,&nbsp;Qingqing Li,&nbsp;Jian Chen,&nbsp;Guoyong Yin,&nbsp;Shujie Zhao","doi":"10.1002/glia.24577","DOIUrl":"10.1002/glia.24577","url":null,"abstract":"<p>Spinal cord injury (SCI) can result in severe motor and sensory deficits, for which currently no effective cure exists. The pathological process underlying this injury is extremely complex and involves many cell types in the central nervous system. In this study, we have uncovered a novel function for macrophage G protein-coupled receptor kinase-interactor 1 (GIT1) in promoting remyelination and functional repair after SCI. Using GIT1<sup>flox/flox</sup> Lyz2-Cre (GIT1 CKO) mice, we identified that GIT1 deficiency in macrophages led to an increased generation of tumor necrosis factor-alpha (TNFα), reduced proportion of mature oligodendrocytes (mOLs), impaired remyelination, and compromised functional recovery in vivo. These effects in GIT1 CKO mice were reversed with the administration of soluble TNF inhibitor. Moreover, bone marrow transplantation from GIT1 CWT mice reversed adverse outcomes in GIT1 CKO mice, further indicating the role of macrophage GIT1 in modulating spinal cord injury repair. Our in vitro experiments showed that macrophage GIT1 plays a critical role in secreting TNFα and influences the differentiation of oligodendrocyte precursor cells (OPCs) after stimulation with myelin debris. Collectively, our data uncovered a new role of macrophage GIT1 in regulating the transformation of OPCs into mOLs, essential for functional remyelination after SCI, suggesting that macrophage GIT1 could be a promising treatment target of SCI.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"72 9","pages":"1674-1692"},"PeriodicalIF":5.4,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141425880","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
Deficient brain GABA metabolism leads to widespread impairments of astrocyte and oligodendrocyte function 大脑 GABA 代谢不足会导致星形胶质细胞和少突胶质细胞功能普遍受损。
IF 5.4 2区 医学
Glia Pub Date : 2024-06-20 DOI: 10.1002/glia.24585
Jens V. Andersen, Oana C. Marian, Filippa L. Qvist, Emil W. Westi, Blanca I. Aldana, Arne Schousboe, Anthony S. Don, Niels H. Skotte, Petrine Wellendorph
{"title":"Deficient brain GABA metabolism leads to widespread impairments of astrocyte and oligodendrocyte function","authors":"Jens V. Andersen,&nbsp;Oana C. Marian,&nbsp;Filippa L. Qvist,&nbsp;Emil W. Westi,&nbsp;Blanca I. Aldana,&nbsp;Arne Schousboe,&nbsp;Anthony S. Don,&nbsp;Niels H. Skotte,&nbsp;Petrine Wellendorph","doi":"10.1002/glia.24585","DOIUrl":"10.1002/glia.24585","url":null,"abstract":"<p>The neurometabolic disorder succinic semialdehyde dehydrogenase (SSADH) deficiency leads to great neurochemical imbalances and severe neurological manifestations. The cause of the disease is loss of function of the enzyme SSADH, leading to impaired metabolism of the principal inhibitory neurotransmitter GABA. Despite the known identity of the enzymatic deficit, the underlying pathology of SSADH deficiency remains unclear. To uncover new mechanisms of the disease, we performed an untargeted integrative analysis of cerebral protein expression, functional metabolism, and lipid composition in a genetic mouse model of SSADH deficiency (ALDH5A1 knockout mice). Our proteomic analysis revealed a clear regional vulnerability, as protein alterations primarily manifested in the hippocampus and cerebral cortex of the ALDH5A1 knockout mice. These regions displayed aberrant expression of proteins linked to amino acid homeostasis, mitochondria, glial function, and myelination. Stable isotope tracing in acutely isolated brain slices demonstrated an overall maintained oxidative metabolism of glucose, but a selective decrease in astrocyte metabolic activity in the cerebral cortex of ALDH5A1 knockout mice. In contrast, an elevated capacity of oxidative glutamine metabolism was observed in the ALDH5A1 knockout brain, which may serve as a neuronal compensation of impaired astrocyte glutamine provision. In addition to reduced expression of critical oligodendrocyte proteins, a severe depletion of myelin-enriched sphingolipids was found in the brains of ALDH5A1 knockout mice, suggesting degeneration of myelin. Altogether, our study highlights that impaired astrocyte and oligodendrocyte function is intimately linked to SSADH deficiency pathology, suggesting that selective targeting of glial cells may hold therapeutic potential in this disease.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"72 10","pages":"1821-1839"},"PeriodicalIF":5.4,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.24585","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141425879","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
Nalfurafine promotes myelination in vitro and facilitates recovery from cuprizone + rapamycin-induced demyelination in mice 纳呋拉芬能促进体外髓鞘化,并有助于小鼠从铜绿素+雷帕霉素诱导的脱髓鞘中恢复过来。
IF 5.4 2区 医学
Glia Pub Date : 2024-06-20 DOI: 10.1002/glia.24583
Ross van de Wetering, Rabia Bibi, Andy Biggerstaff, Sheein Hong, Bria Pengelly, Thomas E. Prisinzano, Anne C. La Flamme, Bronwyn M. Kivell
{"title":"Nalfurafine promotes myelination in vitro and facilitates recovery from cuprizone + rapamycin-induced demyelination in mice","authors":"Ross van de Wetering,&nbsp;Rabia Bibi,&nbsp;Andy Biggerstaff,&nbsp;Sheein Hong,&nbsp;Bria Pengelly,&nbsp;Thomas E. Prisinzano,&nbsp;Anne C. La Flamme,&nbsp;Bronwyn M. Kivell","doi":"10.1002/glia.24583","DOIUrl":"10.1002/glia.24583","url":null,"abstract":"<p>The kappa opioid receptor has been identified as a promising therapeutic target for promoting remyelination. In the current study, we evaluated the ability of nalfurafine to promote oligodendrocyte progenitor cell (OPC) differentiation and myelination <i>in vitro</i>, and its efficacy in an extended, cuprizone-induced demyelination model. Primary mouse (C57BL/6J) OPC-containing cultures were treated with nalfurafine (0.6–200 nM), clemastine (0.01–100 μM), T3 (30 ng/mL), or vehicle for 5 days. Using immunocytochemistry and confocal microscopy, we found that nalfurafine treatment increased OPC differentiation, oligodendrocyte (OL) morphological complexity, and myelination of nanofibers <i>in vitro</i>. Adult male mice (C57BL/6J) were given a diet containing 0.2% cuprizone and administered rapamycin (10 mg/kg) once daily for 12 weeks followed by 6 weeks of treatment with nalfurafine (0.01 or 0.1 mg/kg), clemastine (10 mg/kg), or vehicle. We quantified the number of OLs using immunofluorescence, gross myelination using black gold staining, and myelin thickness using electron microscopy. Cuprizone + rapamycin treatment produced extensive demyelination and was accompanied by a loss of mature OLs, which was partially reversed by therapeutic administration of nalfurafine. We also assessed these mice for functional behavioral changes in open-field, horizontal bar, and mouse motor skill sequence tests (complex wheel running). Cuprizone + rapamycin treatment resulted in hyperlocomotion, poorer horizontal bar scores, and less distance traveled on the running wheels. Partial recovery was observed on both the horizontal bar and complex running wheel tests over time, which was facilitated by nalfurafine treatment. Taken together, these data highlight the potential of nalfurafine as a remyelination-promoting therapeutic.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"72 10","pages":"1801-1820"},"PeriodicalIF":5.4,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.24583","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141425890","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
Myelinated peripheral axons are more vulnerable to mechanical trauma in a model of enlarged axonal diameters 在轴突直径增大的模型中,有髓鞘的外周轴突更容易受到机械创伤的影响。
IF 5.4 2区 医学
Glia Pub Date : 2024-06-19 DOI: 10.1002/glia.24568
Vasiliki-Ilya Gargareta, Stefan A. Berghoff, Doris Krauter, Sophie Hümmert, Katy L. H. Marshall-Phelps, Wiebke Möbius, Klaus-Armin Nave, Robert Fledrich, Hauke B. Werner, Maria A. Eichel-Vogel
{"title":"Myelinated peripheral axons are more vulnerable to mechanical trauma in a model of enlarged axonal diameters","authors":"Vasiliki-Ilya Gargareta,&nbsp;Stefan A. Berghoff,&nbsp;Doris Krauter,&nbsp;Sophie Hümmert,&nbsp;Katy L. H. Marshall-Phelps,&nbsp;Wiebke Möbius,&nbsp;Klaus-Armin Nave,&nbsp;Robert Fledrich,&nbsp;Hauke B. Werner,&nbsp;Maria A. Eichel-Vogel","doi":"10.1002/glia.24568","DOIUrl":"10.1002/glia.24568","url":null,"abstract":"<p>The velocity of axonal impulse propagation is facilitated by myelination and axonal diameters. Both parameters are frequently impaired in peripheral nerve disorders, but it is not known if the diameters of myelinated axons affect the liability to injury or the efficiency of functional recovery. Mice lacking the adaxonal myelin protein chemokine-like factor-like MARVEL-transmembrane domain-containing family member-6 (CMTM6) specifically from Schwann cells (SCs) display appropriate myelination but increased diameters of peripheral axons. Here we subjected <i>Cmtm6</i>-cKo mice as a model of enlarged axonal diameters to a mild sciatic nerve compression injury that causes temporarily reduced axonal diameters but otherwise comparatively moderate pathology of the axon/myelin-unit. Notably, both of these pathological features were worsened in <i>Cmtm6</i>-cKo compared to genotype-control mice early post-injury. The increase of axonal diameters caused by CMTM6-deficiency thus does not override their injury-dependent decrease. Accordingly, we did not detect signs of improved regeneration or functional recovery after nerve compression in <i>Cmtm6</i>-cKo mice; depleting CMTM6 in SCs is thus not a promising strategy toward enhanced recovery after nerve injury. Conversely, the exacerbated axonal damage in <i>Cmtm6</i>-cKo nerves early post-injury coincided with both enhanced immune response including foamy macrophages and SCs and transiently reduced grip strength. Our observations support the concept that larger peripheral axons are particularly susceptible toward mechanical trauma.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"72 9","pages":"1572-1589"},"PeriodicalIF":5.4,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.24568","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141416939","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
How omics is revealing new roles for glia in addiction. 全息技术如何揭示神经胶质细胞在成瘾中的新作用?
IF 6.2 2区 医学
Glia Pub Date : 2024-06-18 DOI: 10.1002/glia.24584
David J Bergkamp, John F Neumaier
{"title":"How omics is revealing new roles for glia in addiction.","authors":"David J Bergkamp, John F Neumaier","doi":"10.1002/glia.24584","DOIUrl":"https://doi.org/10.1002/glia.24584","url":null,"abstract":"<p><p>Experiments to study the biology of addiction have historically focused on the mechanisms through which drugs of abuse drive changes in the functioning of neurons and neural circuits. Glia have often been ignored in these studies, however, and this has left many questions in the field unanswered, particularly, surrounding how glia contribute to changes in synaptic plasticity, regulation of neuroinflammation, and functioning of neural ensembles given massive changes in signaling across the CNS. Omics methods (transcriptomics, translatomics, epigenomics, proteomics, metabolomics, and others) have expanded researchers' abilities to generate hypotheses and carry out mechanistic studies of glial cells during acquisition of drug taking, intoxication, withdrawal, and relapse to drug seeking. Here, we present a survey of how omics technological advances are revising our understanding of astrocytes, microglia, oligodendrocytes, and ependymal cells in addiction biology.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":" ","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141416938","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
Astrocyte diversity in the ferret cerebrum revealed with astrocyte-specific genetic manipulation 通过星形胶质细胞特异性基因操作揭示雪貂脑中星形胶质细胞的多样性
IF 5.4 2区 医学
Glia Pub Date : 2024-06-17 DOI: 10.1002/glia.24587
Nguyen Chi Tai, Yohei Shinmyo, Hiroshi Kawasaki
{"title":"Astrocyte diversity in the ferret cerebrum revealed with astrocyte-specific genetic manipulation","authors":"Nguyen Chi Tai,&nbsp;Yohei Shinmyo,&nbsp;Hiroshi Kawasaki","doi":"10.1002/glia.24587","DOIUrl":"10.1002/glia.24587","url":null,"abstract":"<p>Astrocytes in the cerebrum play important roles such as the regulation of synaptic functions, homeostasis, water transport, and the blood–brain barrier. It has been proposed that astrocytes in the cerebrum acquired diversity and developed functionally during evolution. Here, we show that like human astrocytes, ferret astrocytes in the cerebrum exhibit various morphological subtypes which mice do not have. We found that layer 1 of the ferret cerebrum contained not only protoplasmic astrocytes but also pial interlaminar astrocytes and subpial interlaminar astrocytes. Morphologically polarized astrocytes, which have a long unbranched process, were found in layer 6. Like human white matter, ferret white matter exhibited four subtypes of astrocytes. Furthermore, our quantification showed that ferret astrocytes had a larger territory size and a longer radius length than mouse astrocytes. Thus, our results indicate that, similar to the human cerebrum, the ferret cerebrum has a well-developed diversity of astrocytes. Ferrets should be useful for investigating the molecular and cellular mechanisms leading to astrocyte diversity, the functions of each astrocyte subtype and the involvement of different astrocyte subtypes in various neurological diseases.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"72 10","pages":"1862-1873"},"PeriodicalIF":5.4,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141329852","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
Astrocytic PAR1 and mGluR2/3 control synaptic glutamate time course at hippocampal CA1 synapses 星形胶质细胞 PAR1 和 mGluR2/3 控制海马 CA1 突触的突触谷氨酸时间过程。
IF 5.4 2区 医学
Glia Pub Date : 2024-06-12 DOI: 10.1002/glia.24579
Woo Suk Roh, Jae Hong Yoo, Shashank M. Dravid, Guido Mannaioni, Elizabeth N. Krizman, Philip Wahl, Michael B. Robinson, Stephen F. Traynelis, C. Justin Lee, Kyung-Seok Han
{"title":"Astrocytic PAR1 and mGluR2/3 control synaptic glutamate time course at hippocampal CA1 synapses","authors":"Woo Suk Roh,&nbsp;Jae Hong Yoo,&nbsp;Shashank M. Dravid,&nbsp;Guido Mannaioni,&nbsp;Elizabeth N. Krizman,&nbsp;Philip Wahl,&nbsp;Michael B. Robinson,&nbsp;Stephen F. Traynelis,&nbsp;C. Justin Lee,&nbsp;Kyung-Seok Han","doi":"10.1002/glia.24579","DOIUrl":"10.1002/glia.24579","url":null,"abstract":"<p>Astrocytes play an essential role in regulating synaptic transmission. This study describes a novel form of modulation of excitatory synaptic transmission in the mouse hippocampus by astrocytic G-protein-coupled receptors (GPCRs). We have previously described astrocytic glutamate release via protease-activated receptor-1 (PAR1) activation, although the regulatory mechanisms for this are complex. Through electrophysiological analysis and modeling, we discovered that PAR1 activation consistently increases the concentration and duration of glutamate in the synaptic cleft. This effect was not due to changes in the presynaptic glutamate release or alteration in glutamate transporter expression. However, blocking group II metabotropic glutamate receptors (mGluR2/3) abolished PAR1-mediated regulation of synaptic glutamate concentration, suggesting a role for this GPCR in mediating the effects of PAR1 activation on glutamate release. Furthermore, activation of mGluR2/3 causes glutamate release through the TREK-1 channel in hippocampal astrocytes. These data show that astrocytic GPCRs engage in a novel regulatory mechanism to shape the time course of synaptically-released glutamate in excitatory synapses of the hippocampus.</p>","PeriodicalId":174,"journal":{"name":"Glia","volume":"72 9","pages":"1707-1724"},"PeriodicalIF":5.4,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glia.24579","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141304996","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信