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Frontiers in Cellular Neuroscience

Chao Shang, Yan Guo, Yang Hong, Yi-Xue Xue
Tumour suppressor candidate 7 (TUSC7) is a novel tumor suppressor gene generating long non-coding RNA (lncRNAs) in several types of human cancers. The expression and function of TUSC7 in human brain glioma has yet to be elucidated. In this study, TUSC7 was poorly expressed in tissues and cell lines of glioma, and the lower expression was correlated with glioma of the worse histological grade. Moreover, TUSC7 is a prognostic biomarker of glioma patients. Up-regulation of TUSC7 suppressed cellular proliferation and invasion of glioma cells, and accelerated cellular apoptosis...
2016: Frontiers in Cellular Neuroscience
Marie Z Moftah, Emmanuel Moyse
No abstract text is available yet for this article.
2016: Frontiers in Cellular Neuroscience
Robert L Medcalf, Daniel A Lawrence
No abstract text is available yet for this article.
2016: Frontiers in Cellular Neuroscience
Sunggu Yang, Mariton D Santos, Cha-Min Tang, Jae Geun Kim, Sungchil Yang
Synaptic plasticity is a fundamental component of information processing in the brain. Presynaptic facilitation in response to repetitive stimuli, often referred to as paired-pulse facilitation (PPF), is a dominant form of short-term synaptic plasticity. Recently, an additional cellular mechanism for short-term facilitation, short-term postsynaptic plasticity (STPP), has been proposed. While a dendritic mechanism was described in hippocampus, its expression has not yet been demonstrated at the levels of the spine...
2016: Frontiers in Cellular Neuroscience
Haiyan Lu, Xiaoyan Song, Feng Wang, Guodong Wang, Yuncheng Wu, Qiaoshu Wang, Yongting Wang, Guo-Yuan Yang, Zhijun Zhang
Endogenous Netrin-1 (NT-1) protein was significantly increased after cerebral ischemia, which may participate in the repair after transient cerebral ischemic injury. In this work, we explored whether NT-1 can be steadily overexpressed by adeno-associated virus (AAV) and the exogenous NT-1 can promote neural stem cells migration from the subventricular zone (SVZ) region after cerebral ischemia. Adult CD-1 mice were injected stereotacticly with AAV carrying NT-1 gene (AAV-NT-1). Mice underwent 60 min of middle cerebral artery (MCA) occlusion 1 week after injection...
2016: Frontiers in Cellular Neuroscience
Marta Perez-Alcazar, Georgia Culley, Tim Lyckenvik, Kristoffer Mobarrez, Andreas Björefeldt, Pontus Wasling, Henrik Seth, Frederik Asztely, Andrea Harrer, Bernhard Iglseder, Ludwig Aigner, Eric Hanse, Sebastian Illes
[This corrects the article on p. 54 in vol. 10, PMID: 26973467.].
2016: Frontiers in Cellular Neuroscience
Juanmei Gao, Hangze Ruan, Xianjie Qi, Yi Tao, Xia Guo, Wanhua Shen
Radial glial cells (RGs) are one of the important progenitor cells that can differentiate into neurons or glia to form functional neural circuits in the developing central nervous system (CNS). Histone deacetylases (HDACs) has been associated with visual activity dependent changes in BrdU-positive progenitor cells in the developing brain. We previously have shown that HDAC1 is involved in the experience-dependent proliferation of RGs. However, it is less clear whether two other members of class I HDACs, HDAC2 and HDAC3, are involved in the regulation of radial glia proliferation...
2016: Frontiers in Cellular Neuroscience
Thomas I Talpalar, Adolfo E Talpalar
Hyperbaric environments induce the high pressure neurological syndrome (HPNS) characterized by hyperexcitability of the central nervous system (CNS) and memory impairment. Human divers and other animals experience the HPNS at pressures beyond 1.1 MPa. High pressure depresses synaptic transmission and alters its dynamics in various animal models. Medial perforant path (MPP) synapses connecting the medial entorhinal cortex with the hippocampal formation are suppressed by 50% at 10.1MPa. Reduction of synaptic inputs is paradoxically associated with enhanced ability of dentate gyrus (DG)' granule cells (GCs) to generate spikes at high pressure...
2016: Frontiers in Cellular Neuroscience
Abinaya Chandrasekaran, Hasan X Avci, Marcel Leist, Julianna Kobolák, Andras Dinnyés
Astrocytes have a central role in brain development and function, and so have gained increasing attention over the past two decades. Consequently, our knowledge about their origin, differentiation and function has increased significantly, with new research showing that astrocytes cultured alone or co-cultured with neurons have the potential to improve our understanding of various central nervous system diseases, such as amyotrophic lateral sclerosis, Alzheimer's disease, or Alexander disease. The generation of astrocytes derived from pluripotent stem cells (PSCs) opens up a new area for studying neurologic diseases in vitro; these models could be exploited to identify and validate potential drugs by detecting adverse effects in the early stages of drug development...
2016: Frontiers in Cellular Neuroscience
Ananta Paine, Manoj Kumar Jaiswal
No abstract text is available yet for this article.
2016: Frontiers in Cellular Neuroscience
Miranda Arnold, Rebecca Cross, Kaela S Singleton, Stephanie Zlatic, Christopher Chapleau, Ariana P Mullin, Isaiah Rolle, Carlene C Moore, Anne Theibert, Lucas Pozzo-Miller, Victor Faundez, Jennifer Larimore
AGAP1 is an Arf1 GTPase activating protein that interacts with the vesicle-associated protein complexes adaptor protein 3 (AP-3) and Biogenesis of Lysosome Related Organelles Complex-1 (BLOC-1). Overexpression of AGAP1 in non-neuronal cells results in an accumulation of endosomal cargoes, which suggests a role in endosome-dependent traffic. In addition, AGAP1 is a candidate susceptibility gene for two neurodevelopmental disorders, autism spectrum disorder (ASD) and schizophrenia (SZ); yet its localization and function in neurons have not been described...
2016: Frontiers in Cellular Neuroscience
Anne Tscherter, Martina Heidemann, Sonja Kleinlogel, Jürg Streit
Presently there exists no cure for spinal cord injury (SCI). However, transplantation of embryonic tissue into spinal cord (SC) lesions resulted in axon outgrowth across the lesion site and some functional recovery, fostering hope for future stem cell therapies. Although in vivo evidence for functional recovery is given, the exact cellular mechanism of the graft support remains elusive: either the grafted cells provide a permissive environment for the host tissue to regenerate itself or the grafts actually integrate functionally into the host neuronal network reconnecting the separated SC circuits...
2016: Frontiers in Cellular Neuroscience
Daniel Radzicki, Erdong Liu, Han-Xiang Deng, Teepu Siddique, Marco Martina
Frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS) are believed to represent the different outcomes of a common pathogenic mechanism. However, while researchers have intensely studied the involvement of motor neurons in the ALS/FTD syndrome, very little is known about the function of hippocampal neurons, although this area is critical for memory and other cognitive functions. We investigated the electrophysiological properties of CA1 pyramidal cells in slices from 1 month-old UBQLN2(P497H) mice, a recently generated model of ALS/FTD that shows heavy depositions of ubiquilin2-positive aggregates in this brain region...
2016: Frontiers in Cellular Neuroscience
Domenico F Galati, Brian G Hiester, Kevin R Jones
Brain-derived neurotrophic factor (BDNF) regulates both action potential (AP) generation and neuron morphology. However, whether BDNF-induced changes in neuron morphology directly impact AP generation is unclear. We quantified BDNF's effect on cultured cortical neuron morphological parameters and found that BDNF stimulates dendrite growth and addition of dendrites while increasing both excitatory and inhibitory presynaptic inputs in a spatially restricted manner. To gain insight into how these combined changes in neuron structure and synaptic input impact AP generation, we used the morphological parameters we gathered to generate computational models...
2016: Frontiers in Cellular Neuroscience
Jayden A Clark, Elise J Yeaman, Catherine A Blizzard, Jyoti A Chuckowree, Tracey C Dickson
Amyotrophic lateral sclerosis (ALS) is an aggressive multifactorial disease converging on a common pathology: the degeneration of motor neurons (MNs), their axons and neuromuscular synapses. This vulnerability and dysfunction of MNs highlights the dependency of these large cells on their intracellular machinery. Neuronal microtubules (MTs) are intracellular structures that facilitate a myriad of vital neuronal functions, including activity dependent axonal transport. In ALS, it is becoming increasingly apparent that MTs are likely to be a critical component of this disease...
2016: Frontiers in Cellular Neuroscience
Daniel Cortés, Yolanda Robledo-Arratia, Ricardo Hernández-Martínez, Itzel Escobedo-Ávila, José Bargas, Iván Velasco
Embryonic stem cells (ESC) are pluripotent and thus can differentiate into every cell type present in the body. Directed differentiation into motor neurons (MNs) has been described for pluripotent cells. Although neurotrophic factors promote neuronal survival, their role in neuronal commitment is elusive. Here, we developed double-transgenic lines of mouse ESC (mESC) that constitutively produce glial cell line-derived neurotrophic factor (GDNF) and also contain a GFP reporter, driven by HB9, which is expressed only by postmitotic MNs...
2016: Frontiers in Cellular Neuroscience
Imre Farkas, Csaba Vastagh, Erzsébet Farkas, Flóra Bálint, Katalin Skrapits, Erik Hrabovszky, Csaba Fekete, Zsolt Liposits
Glucagon-like peptide-1 (GLP-1), a metabolic signal molecule, regulates reproduction, although, the involved molecular mechanisms have not been elucidated, yet. Therefore, responsiveness of gonadotropin-releasing hormone (GnRH) neurons to the GLP-1 analog Exendin-4 and elucidation of molecular pathways acting downstream to the GLP-1 receptor (GLP-1R) have been challenged. Loose patch-clamp recordings revealed that Exendin-4 (100 nM-5 μM) elevated firing rate in hypothalamic GnRH-GFP neurons of male mice via activation of GLP-1R...
2016: Frontiers in Cellular Neuroscience
Martin N Andersson, Jacob A Corcoran, Dan-Dan Zhang, Ylva Hillbur, Richard D Newcomb, Christer Löfstedt
The Hessian fly, Mayetiola destructor Say (Diptera, Cecidomyiidae), is a pest of wheat and belongs to a group of gall-inducing herbivores. This species has a unique life history and several ecological features that differentiate it from other Diptera such as Drosophila melanogaster and blood-feeding mosquitoes. These features include a short, non-feeding adult life stage (1-2 days) and the use of a long-range sex pheromone produced and released by adult females. Sex pheromones are detected by members of the odorant receptor (OR) family within the Lepidoptera, but no receptors for similar long-range sex pheromones have been characterized from the Diptera...
2016: Frontiers in Cellular Neuroscience
Liesbeth Zwarts, Tim Goossens, Jason Clements, Yuan Y Kang, Patrick Callaerts
Correct wiring of the mushroom body (MB) neuropil in the Drosophila brain involves appropriate positioning of different axonal lobes, as well as the sister branches that develop from individual axons. This positioning requires the integration of various guidance cues provided by different cell types, which help the axons find their final positions within the neuropil. Semaphorins are well-known for their conserved roles in neuronal development and axon guidance. We investigated the role of Sema-1a in MB development more closely...
2016: Frontiers in Cellular Neuroscience
Yao V Zhang, Shabab B Hannan, Zeenna A Stapper, Jeannine V Kern, Thomas R Jahn, Tobias M Rasse
Mutations in the kinesin-3 family member KIF1A have been associated with hereditary spastic paraplegia (HSP), hereditary and sensory autonomic neuropathy type 2 (HSAN2) and non-syndromic intellectual disability (ID). Both autosomal recessive and autosomal dominant forms of inheritance have been reported. Loss of KIF1A or its homolog unc-104 causes early postnatal or embryonic lethality in mice and Drosophila, respectively. In this study, we use a previously described hypomorphic allele of unc-104, unc-104(bris) , to investigate the impact of partial loss-of-function of kinesin-3 on synapse maturation at the Drosophila neuromuscular junction (NMJ)...
2016: Frontiers in Cellular Neuroscience
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