Neurogenesis (Austin, Tex.)最新文献

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The expanding role of the Ehmt2/G9a complex in neurodevelopment. Ehmt2/G9a复合物在神经发育中的扩展作用。
Neurogenesis (Austin, Tex.) Pub Date : 2017-05-02 eCollection Date: 2017-01-01 DOI: 10.1080/23262133.2017.1316888
Steven J Deimling, Jonathan B Olsen, Vincent Tropepe
{"title":"The expanding role of the Ehmt2/G9a complex in neurodevelopment.","authors":"Steven J Deimling,&nbsp;Jonathan B Olsen,&nbsp;Vincent Tropepe","doi":"10.1080/23262133.2017.1316888","DOIUrl":"https://doi.org/10.1080/23262133.2017.1316888","url":null,"abstract":"<p><p>Epigenetic regulators play a crucial role in neurodevelopment. One such epigenetic complex, Ehmt1/2 (G9a/GLP), is essential for repressing gene transcription by methylating H3K9 in a highly tissue- and temporal-specific manner. Recently, data has emerged suggesting that this complex plays additional roles in regulating the activity of numerous other non-histone proteins. While much is known about the downstream effects of Ehmt1/2 function, evidence is only beginning to come to light suggesting the control of Ehmt1/2 function may be, at least in part, due to context-dependent binding partners. Here we review emerging roles for the Ehmt1/2 complex suggesting that it may play a much larger role than previously recognized, and discuss binding partners that we and others have recently characterized which act to coordinate its activity during early neurodevelopment.</p>","PeriodicalId":74274,"journal":{"name":"Neurogenesis (Austin, Tex.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23262133.2017.1316888","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35073703","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}
引用次数: 19
The effects of aging on Amyloid-β42-induced neurodegeneration and regeneration in adult zebrafish brain. 衰老对成年斑马鱼脑淀粉样蛋白β42诱导的神经变性和再生的影响。
Neurogenesis (Austin, Tex.) Pub Date : 2017-05-02 eCollection Date: 2017-01-01 DOI: 10.1080/23262133.2017.1322666
Prabesh Bhattarai, Alvin Kuriakose Thomas, Yixin Zhang, Caghan Kizil
{"title":"The effects of aging on Amyloid-β42-induced neurodegeneration and regeneration in adult zebrafish brain.","authors":"Prabesh Bhattarai,&nbsp;Alvin Kuriakose Thomas,&nbsp;Yixin Zhang,&nbsp;Caghan Kizil","doi":"10.1080/23262133.2017.1322666","DOIUrl":"https://doi.org/10.1080/23262133.2017.1322666","url":null,"abstract":"<p><p>Alzheimer disease is the most prevalent neurodegenerative disease and is associated with aggregation of Amyloid-β42 peptides. In mammals, Amyloid-β42 causes impaired neural stem/progenitor cell (NSPC) proliferation and neurogenesis, which exacerbate with aging. The molecular programs necessary to enhance NSPC proliferation and neurogenesis in our brains to mount successful regeneration are largely unknown. Therefore, to identify the molecular basis of effective brain regeneration, we previously established an Amyloid-β42 model in adult zebrafish that displayed Alzheimer-like phenotypes reminiscent of humans. Interestingly, zebrafish exhibited enhanced NSPC proliferation and neurogenesis after microinjection of Amyloid-β42 peptide. Here, we compare old and young fish to address the effects of aging on regenerative ability after Amyloid-β42 deposition. We found that aging does not affect the rate of NSPC proliferation but reduces the neurogenic response and microglia/macrophage activation after microinjection of Amyloid-β42 in zebrafish, suggesting an important link between aging, neuroinflammation, regenerative neurogenesis and neural stem cell plasticity.</p>","PeriodicalId":74274,"journal":{"name":"Neurogenesis (Austin, Tex.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23262133.2017.1322666","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35124506","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}
引用次数: 56
Building a central nervous system: The neural stem cell lineage revealed. 构建中枢神经系统:揭示神经干细胞谱系。
Neurogenesis (Austin, Tex.) Pub Date : 2017-04-28 eCollection Date: 2017-01-01 DOI: 10.1080/23262133.2017.1300037
Wenjun Xu, Nishanth Lakshman, Cindi M Morshead
{"title":"Building a central nervous system: The neural stem cell lineage revealed.","authors":"Wenjun Xu,&nbsp;Nishanth Lakshman,&nbsp;Cindi M Morshead","doi":"10.1080/23262133.2017.1300037","DOIUrl":"https://doi.org/10.1080/23262133.2017.1300037","url":null,"abstract":"<p><p>Neural stem cells (NSCs) are a multipotent, self-renewing source of undifferentiated cells in the periventricular region of the mammalian central nervous system (CNS). Since their original discovery 25 years ago, much has been learned about their development, persistence, localization, properties and potential. Herein we discuss the current state of knowledge pertaining to neural stem cells with a focus on the lineage relationship between two NSC populations along the neuraxis and their regionally distinct niches in the CNS.</p>","PeriodicalId":74274,"journal":{"name":"Neurogenesis (Austin, Tex.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23262133.2017.1300037","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35005814","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}
引用次数: 24
Nervous system development relies on endosomal trafficking. 神经系统的发育依赖于内体运输。
Neurogenesis (Austin, Tex.) Pub Date : 2017-04-27 eCollection Date: 2017-01-01 DOI: 10.1080/23262133.2017.1316887
Ivan Mestres, Ching-Hwa Sung
{"title":"Nervous system development relies on endosomal trafficking.","authors":"Ivan Mestres,&nbsp;Ching-Hwa Sung","doi":"10.1080/23262133.2017.1316887","DOIUrl":"https://doi.org/10.1080/23262133.2017.1316887","url":null,"abstract":"<p><p>Accumulating findings have begun to unveil the important role of the endosomal machinery in the nervous system development. Endosomes have been linked to the differential segregation of cell fate determining molecules in asymmetrically dividing progenitors during neurogenesis. Additionally, the precise removal and reinsertion of membrane components through endocytic trafficking regulates the spatial and temporal distribution of signaling receptors and adhesion molecules, which determine the morphology and motility of migrating neurons. Emerging evidence suggests that the role of the endosomal sorting adaptors is dependent upon cell type and developmental stage. The repertoire of the signaling receptors and/or adhesion molecules sorted by the endosome during these processes remains to be explored. In this commentary, we will briefly address the progress in this research field.</p>","PeriodicalId":74274,"journal":{"name":"Neurogenesis (Austin, Tex.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23262133.2017.1316887","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35052985","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}
引用次数: 2
What is CAR doing in the middle of the adult neurogenic road? CAR在成人神经源性过程中做了什么?
Neurogenesis (Austin, Tex.) Pub Date : 2017-04-27 eCollection Date: 2017-01-01 DOI: 10.1080/23262133.2017.1304790
Sara Salinas, Felix Junyent, Nathalie Coré, Harold Cremer, Eric J Kremer
{"title":"What is CAR doing in the middle of the adult neurogenic road?","authors":"Sara Salinas,&nbsp;Felix Junyent,&nbsp;Nathalie Coré,&nbsp;Harold Cremer,&nbsp;Eric J Kremer","doi":"10.1080/23262133.2017.1304790","DOIUrl":"https://doi.org/10.1080/23262133.2017.1304790","url":null,"abstract":"<p><p>The molecular and cellular basis of adult neurogenesis has attracted considerable attention for fundamental and clinical applications because neural stem cells and newborn neurons may, one day, be harnessed to replace neurons and allow cognitive improvement in the diseased brain. In rodents, neural progenitors are located in the dentate gyrus and the sub/periventricular zone. In the dentate gyrus the generation of newborn neurons is associated with plasticity, including regulation of memory. The role of subventricular zone neural precursors that migrate to the olfactory bulb is less characterized. Identifying factors that impact neural stem cell proliferation, migration and differentiation is therefore <i>sine qua non</i> before we can harness their potential. Here, we expand upon our recent results showing that CAR, the coxsackievirus and adenovirus receptor, is among the developing list of key players when it comes to the complex process of integrating newborn neurons into existing circuits in the mature brain.</p>","PeriodicalId":74274,"journal":{"name":"Neurogenesis (Austin, Tex.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23262133.2017.1304790","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35005816","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}
引用次数: 4
A brief history of the study of nerve dependent regeneration. 神经依赖性再生研究简史。
Neurogenesis (Austin, Tex.) Pub Date : 2017-04-10 eCollection Date: 2017-01-01 DOI: 10.1080/23262133.2017.1302216
Johanna E Farkas, James R Monaghan
{"title":"A brief history of the study of nerve dependent regeneration.","authors":"Johanna E Farkas,&nbsp;James R Monaghan","doi":"10.1080/23262133.2017.1302216","DOIUrl":"https://doi.org/10.1080/23262133.2017.1302216","url":null,"abstract":"<p><p>Nerve dependence is a phenomenon observed across a stunning array of species and tissues. From zebrafish to fetal mice to humans, research across various animal models has shown that nerves are critical for the support of tissue repair and regeneration. Although the study of this phenomenon has persisted for centuries, largely through research conducted in salamanders, the cellular and molecular mechanisms of nerve dependence remain poorly-understood. Here we highlight the near-ubiquity and clinical relevance of vertebrate nerve dependence while providing a timeline of its study and an overview of recent advancements toward understanding the mechanisms behind this process. In presenting a brief history of the research of nerve dependence, we provide both historical and modern context to our recent work on nerve dependent limb regeneration in the Mexican axolotl.</p>","PeriodicalId":74274,"journal":{"name":"Neurogenesis (Austin, Tex.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23262133.2017.1302216","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34956565","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}
引用次数: 49
The importance of constructive feedback: Implications of top-down regulation in the development of neural circuits. 建设性反馈的重要性:自上而下调控在神经回路发育中的意义。
Neurogenesis (Austin, Tex.) Pub Date : 2017-03-03 eCollection Date: 2017-01-01 DOI: 10.1080/23262133.2017.1287553
Andrew D Thompson, Chinfei Chen
{"title":"The importance of constructive feedback: Implications of top-down regulation in the development of neural circuits.","authors":"Andrew D Thompson,&nbsp;Chinfei Chen","doi":"10.1080/23262133.2017.1287553","DOIUrl":"https://doi.org/10.1080/23262133.2017.1287553","url":null,"abstract":"<p><p>Neural circuits in sensory pathways develop through a general strategy of overproduction of synapses followed by activity-driven pruning to fine-tune connectivity for optimal function. The early visual pathway, consisting of the retina → visual thalamus → primary visual cortex, has served for decades as a powerful model system for probing the mechanisms and logic of this process. In addition to these feedforward projections, the early visual pathway also includes a substantial feedback component in the form of corticothalamic projections from the deepest layer of primary visual cortex. The role of this feedback in visual processing has been studied extensively in mature animals, yet historically, its role in development has received comparatively little attention. Recent technological advances allowing for selective manipulation of neural activity in development led to the uncovering of a role for feedback in guiding the refinement of the forward projection from retina to visual thalamus. Here we discuss the implications of feedback exerting influence on the development of sensory pathways. We propose several possible advantages to constructing neural circuits with top-down regulation, and discuss the potential significance of this finding for certain neurologic disorders.</p>","PeriodicalId":74274,"journal":{"name":"Neurogenesis (Austin, Tex.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23262133.2017.1287553","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34846429","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}
引用次数: 1
Toward a better understanding of enteric gliogenesis. 为了更好地理解肠道胶质形成。
Neurogenesis (Austin, Tex.) Pub Date : 2017-03-02 eCollection Date: 2017-01-01 DOI: 10.1080/23262133.2017.1293958
Baptiste Charrier, Nicolas Pilon
{"title":"Toward a better understanding of enteric gliogenesis.","authors":"Baptiste Charrier,&nbsp;Nicolas Pilon","doi":"10.1080/23262133.2017.1293958","DOIUrl":"https://doi.org/10.1080/23262133.2017.1293958","url":null,"abstract":"<p><p>Most of gastrointestinal functions are controlled by the enteric nervous system (ENS), which contains a vast diversity of neurons and glial cells. In accordance with its key role, defective ENS formation is the cause of several diseases that affect quality of life and can even be life-threatening. Treatment of these diseases would greatly benefit from a better understanding of the molecular mechanisms underlying ENS formation. In this regard, although several important discoveries have been made over the years, how the full spectrum of enteric neuronal and glial cell subtypes is generated from neural crest cells during development still remains enigmatic. Because they also have stem cell properties, such knowledge would be especially important for the enteric glial cell lineage. In a recent study, we identified the NR2F1 transcription factor as a new key regulator of enteric gliogenesis. Here we discuss our recent findings and briefly review what is already known about the mechanisms and signaling pathways involved in enteric gliogenesis, with an emphasis on Hedgehog and Notch signaling.</p>","PeriodicalId":74274,"journal":{"name":"Neurogenesis (Austin, Tex.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23262133.2017.1293958","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34863727","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}
引用次数: 17
Amyloid Precursor Protein family as unconventional Go-coupled receptors and the control of neuronal motility. 淀粉样前体蛋白家族作为非常规go偶联受体与神经元运动的控制。
Neurogenesis (Austin, Tex.) Pub Date : 2017-03-01 eCollection Date: 2017-01-01 DOI: 10.1080/23262133.2017.1288510
Jenna M Ramaker, Philip F Copenhaver
{"title":"Amyloid Precursor Protein family as unconventional Go-coupled receptors and the control of neuronal motility.","authors":"Jenna M Ramaker,&nbsp;Philip F Copenhaver","doi":"10.1080/23262133.2017.1288510","DOIUrl":"https://doi.org/10.1080/23262133.2017.1288510","url":null,"abstract":"<p><p>Cleavage of the Amyloid Precursor Protein (APP) generates amyloid peptides that accumulate in Alzheimer Disease (AD), but APP is also upregulated by developing and injured neurons, suggesting that it regulates neuronal motility. APP can also function as a G protein-coupled receptor that signals via the heterotrimeric G protein Gαo, but evidence for APP-Gαo signaling <i>in vivo</i> has been lacking. Using <i>Manduca</i> as a model system, we showed that insect APP (APPL) regulates neuronal migration in a Gαo-dependent manner. Recently, we also demonstrated that <i>Manduca</i> Contactin (expressed by glial cells) induces APPL-Gαo retraction responses in migratory neurons, consistent with evidence that mammalian Contactins also interact with APP family members. Preliminary studies using cultured hippocampal neurons suggest that APP-Gαo signaling can similarly regulate growth cone motility. Whether Contactins (or other APP ligands) induce this response within the developing nervous system, and how this pathway is disrupted in AD, remains to be explored.</p>","PeriodicalId":74274,"journal":{"name":"Neurogenesis (Austin, Tex.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23262133.2017.1288510","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34836668","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}
引用次数: 6
Signaling pathways and tissue interactions in neural plate border formation. 神经板边界形成中的信号通路和组织相互作用。
Neurogenesis (Austin, Tex.) Pub Date : 2017-02-23 eCollection Date: 2017-01-01 DOI: 10.1080/23262133.2017.1292783
Carolin Schille, Alexandra Schambony
{"title":"Signaling pathways and tissue interactions in neural plate border formation.","authors":"Carolin Schille,&nbsp;Alexandra Schambony","doi":"10.1080/23262133.2017.1292783","DOIUrl":"https://doi.org/10.1080/23262133.2017.1292783","url":null,"abstract":"<p><p>The neural crest is a transient cell population that gives rise to various cell types of multiple tissues and organs in the vertebrate embryo. Neural crest cells arise from the neural plate border, a region localized at the lateral borders of the prospective neural plate. Temporally and spatially coordinated interaction with the adjacent tissues, the non-neural ectoderm, the neural plate and the prospective dorsolateral mesoderm, is required for neural plate border specification. Signaling molecules, namely BMP, Wnt and FGF ligands and corresponding antagonists are derived from these tissues and interact to induce the expression of neural plate border specific genes. The present mini-review focuses on the current understanding of how the NPB territory is formed and accentuates the need for coordinated interaction of BMP and Wnt signaling pathways and precise tissue communication that are required for the definition of the prospective NC in the competent ectoderm.</p>","PeriodicalId":74274,"journal":{"name":"Neurogenesis (Austin, Tex.)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23262133.2017.1292783","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34863726","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}
引用次数: 12
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