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https://www.readbyqxmd.com/read/27932977/human-neural-stem-cell-transplantation-rescues-cognitive-defects-in-app-ps1-model-of-alzheimer-s-disease-by-enhancing-neuronal-connectivity-and-metabolic-activity
#1
Xueyuan Li, Hua Zhu, Xicai Sun, Fuxing Zuo, Jianfeng Lei, Zhanjing Wang, Xinjie Bao, Renzhi Wang
Alzheimer's disease (AD), the most frequent type of dementia, is featured by Aβ pathology, neural degeneration and cognitive decline. To date, there is no cure for this disease. Neural stem cell (NSC) transplantation provides new promise for treating AD. Many studies report that intra-hippocampal transplantation of murine NSCs improved cognition in rodents with AD by alleviating neurodegeneration via neuronal complement or replacement. However, few reports examined the potential of human NSC transplantation for AD...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27929688/anatomical-location-differences-between-mutated-and-wild-type-isocitrate-dehydrogenase-1-in-low-grade-gliomas
#2
Jinhua Yu, Zhifeng Shi, Chunhong Ji, Yuxi Lian, Yuanyuan Wang, Liang Chen, Ying Mao
Anatomical location of gliomas has been considered as a factor implicating the contributions of a specific precursor cells during the tumor growth. Isocitrate dehydrogenase 1 (IDH1) is a pathognomonic biomarker with a significant impact on the development of gliomas and remarkable prognostic effect. The correlation between anatomical location of tumor and IDH1 states for low grade gliomas was analyzed quantitatively in this study. 92 patients diagnosed of low grade glioma pathologically were recruited in this study, including 65 patients with IDH1-mutated glioma and 27 patients with wide-type IDH1...
December 8, 2016: International Journal of Neuroscience
https://www.readbyqxmd.com/read/27929471/isolation-and-expansion-of-adult-canine-hippocampal-neural-precursors
#3
Thomas Duncan, Aileen Lowe, Marshall A Dalton, Michael Valenzuela
The rate of neurogenesis within the adult hippocampus has been shown to vary across mammalian species. The canine hippocampus, demonstrating a structural intermediacy between the rodent and human hippocampi, is therefore a valuable model in which to study adult neurogenesis. In vitro culture assays are an essential component of characterizing neurogenesis and adult neural precursor cells, allowing for precise control over the cellular environment. To date however, culture protocols for canine cells remain under-represented in the literature...
November 29, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27927055/improving-the-therapeutic-efficacy-of-neural-progenitor-cell-transplantation-following-spinal-cord-injury
#4
Michael A Lane, Angelo C Lepore, Itzhak Fischer
There have been a wide range of preclinical studies testing cellular therapies to repair the injured spinal cord, yet they remain a challenge to translate because of inconsistencies in efficacy, difficulties in obtaining reliable and safe sources of donor cells, limited number of patients with acute/subacute SCI and the high costs of clinical trials. Area covered: This paper focusses on the therapeutic potential of neural precursor cells (NPCs) because they can provide the cellular components capable of promoting repair and enhancing functional improvement following spinal cord injury (SCI)...
December 7, 2016: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/27920532/the-effect-of-magnetic-nanoparticles-on-neuronal-differentiation-of-induced-pluripotent-stem-cell-derived-neural-precursors
#5
Klára Jiráková, Monika Šeneklová, Daniel Jirák, Karolína Turnovcová, Magda Vosmanská, Michal Babič, Daniel Horák, Pavel Veverka, Pavla Jendelová
INTRODUCTION: Magnetic resonance (MR) imaging is suitable for noninvasive long-term tracking. We labeled human induced pluripotent stem cell-derived neural precursors (iPSC-NPs) with two types of iron-based nanoparticles, silica-coated cobalt zinc ferrite nanoparticles (CZF) and poly-l-lysine-coated iron oxide superparamagnetic nanoparticles (PLL-coated γ-Fe2O3) and studied their effect on proliferation and neuronal differentiation. MATERIALS AND METHODS: We investigated the effect of these two contrast agents on neural precursor cell proliferation and differentiation capability...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27918106/cannabidiol-activates-neuronal-precursor-genes-in-human-gingival-mesenchymal-stromal-cells
#6
Thangavelu Soundara Rajan, Sabrina Giacoppo, Domenico Scionti, Francesca Diomede, Gianpaolo Grassi, Federica Pollastro, Adriano Piattelli, Placido Bramanti, Emanuela Mazzon, Oriana Trubiani
In the last years, mesenchymal stromal cells (MSCs) from oral tissues have received considerable interest in regenerative medicine since they can be obtained with minimal invasive procedure and exhibit immunomodulatory properties. This study was aimed to investigate whether in vitro pre-treatment of MSCs obtained from human gingiva (hGMSCs) with Cannabidiol (CBD), a cannabinoid component produced by the plant Cannabis sativa, may promote human gingiva derived MSCs to differentiate towards neuronal precursor cells...
December 5, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27917940/ubiquitin-ligase-nedd4-regulates-ppar%C3%AE-stability-and-adipocyte-differentiation-in-3t3-l1-cells
#7
Jing Jing Li, Ruishan Wang, Rati Lama, Xinjiang Wang, Z Elizabeth Floyd, Edwards A Park, Francesca-Fang Liao
Peroxisome proliferator-activated receptor-γ (PPARγ) is a ligand-activated nuclear receptor which controls lipid and glucose metabolism. It is also the master regulator of adipogenesis. In adipocytes, ligand-dependent PPARγ activation is associated with proteasomal degradation; therefore, regulation of PPARγ degradation may modulate its transcriptional activity. Here, we show that neural precursor cell expressed developmentally down-regulated protein 4 (NEDD4), an E3 ubiquitin ligase, interacts with the hinge and ligand binding domains of PPARγ and is a bona fide E3 ligase for PPARγ...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27916098/-knockdown-of-nedd9-inhibits-the-proliferation-invasion-and-migration-of-esophageal-carcinoma-ec109-cells
#8
Wen Zhang, Shaojun Li, Yunlong Zhao, Nannan Guo, Yingjie Li
Objective To observe the expression of the neural precursor cell expressed, developmentally down-regulated 9 (NEDD9) in esophageal cancer, to investigate the impact of decreased expression of NEDD9 on invasion and migration, and to explicit the function of NEDD9 in EC109 human esophageal cancer cell line. Methods Immunohistochemical staining was used to detect the expression of NEDD9 in human esophageal cancer tissues and paracancerous normal tissues. RNA interfering (RNAi) was used to knockdown NEDD9 in EC109 cells...
December 2016: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/27911847/zika-virus-cell-tropism-in-the-developing-human-brain-and-inhibition-by-azithromycin
#9
Hanna Retallack, Elizabeth Di Lullo, Carolina Arias, Kristeene A Knopp, Matthew T Laurie, Carmen Sandoval-Espinosa, Walter R Mancia Leon, Robert Krencik, Erik M Ullian, Julien Spatazza, Alex A Pollen, Caleigh Mandel-Brehm, Tomasz J Nowakowski, Arnold R Kriegstein, Joseph L DeRisi
The rapid spread of Zika virus (ZIKV) and its association with abnormal brain development constitute a global health emergency. Congenital ZIKV infection produces a range of mild to severe pathologies, including microcephaly. To understand the pathophysiology of ZIKV infection, we used models of the developing brain that faithfully recapitulate the tissue architecture in early to midgestation. We identify the brain cell populations that are most susceptible to ZIKV infection in primary human tissue, provide evidence for a mechanism of viral entry, and show that a commonly used antibiotic protects cultured brain cells by reducing viral proliferation...
November 29, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911769/reductive-carboxylation-is-a-major-metabolic-pathway-in-the-retinal-pigment-epithelium
#10
Jianhai Du, Aya Yanagida, Kaitlen Knight, Abbi L Engel, Anh Huan Vo, Connor Jankowski, Martin Sadilek, Van Thi Bao Tran, Megan A Manson, Aravind Ramakrishnan, James B Hurley, Jennifer R Chao
The retinal pigment epithelium (RPE) is a monolayer of pigmented cells that requires an active metabolism to maintain outer retinal homeostasis and compensate for oxidative stress. Using (13)C metabolic flux analysis in human RPE cells, we found that RPE has an exceptionally high capacity for reductive carboxylation, a metabolic pathway that has recently garnered significant interest because of its role in cancer cell survival. The capacity for reductive carboxylation in RPE exceeds that of all other cells tested, including retina, neural tissue, glial cells, and a cancer cell line...
December 1, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27908803/pericytes-integral-components-of-adult-hematopoietic-stem-cell-niches
#11
REVIEW
D Sá da Bandeira, J Casamitjana, M Crisan
The interest in perivascular cells as a niche for adult hematopoietic stem cells (HSCs) is significantly growing. In the adult bone marrow (BM), perivascular cells and HSCs cohabit. Among perivascular cells, pericytes are precursors of mesenchymal stem/stromal cells (MSCs) that are capable of differentiating into osteoblasts, adipocytes and chondrocytes. In situ, pericytes are recognised by their localisation to the abluminal side of the blood vessel wall, closely associated with endothelial cells in combination with the expression of markers such as CD146, neural glial 2 (NG2), platelet derived growth factor receptor β (PDGFRβ), α-smooth muscle actin (α-SMA), nestin (Nes) and/or leptin receptor (LepR)...
November 28, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27906583/isolation-of-bovine-skin-derived-precursor-cells-and-their-developmental-potential-after-nuclear-transfer
#12
Jiajia Xiao, Qiaoqiao Li, Pengxiang Qu, Zihan Zhang, Shaohui Pan, Yongsheng Wang, Yong Zhang
Nuclei from less differentiated stem cells yield high cloning efficiency. However, pluripotent stem cells are rather difficult to obtain from bovines. Skin-derived precursor (SKPs) cells exhibit a certain degree of pluripotency, which has been shown to enhance the efficiency of nuclear transfer (NT) in pigs. In this study, bovine SKPs were isolated and characterized. Results showed that bovine SKPs expressed nestin, fibronectin, vimentin, pluripotency-related genes, and characteristic neural crest markers, such as NGFR, PAX3, SOX9, SNAI2, and OCT4...
November 2016: Cellular Reprogramming
https://www.readbyqxmd.com/read/27904473/perspectives-on-the-role-of-pannexin-1-in-neural-precursor-cell-biology
#13
REVIEW
Juan C Sanchez-Arias, Leigh E Wicki-Stordeur, Leigh Anne Swayne
We recently reported that targeted deletion of Pannexin 1 in neural precursor cells of the ventricular zone impairs the maintenance of these cells in healthy and stroke-injured brain. Here we frame this exciting new finding in the context of our previous studies on Pannexin 1 in neural precursors as well as the close relationship between Pannexin 1 and purinergic receptors established by other groups. Moreover, we identify important gaps in our understanding of Pannexin 1 in neural precursor cell biology in terms of the underlying molecular mechanisms and functional/behavioural outcomes...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27882335/id-ealizing-control-of-adult-subventricular-zone-neural-stem-precursor-cell-differentiation-for-cns-regeneration
#14
COMMENT
Christian Bohrer, Christian Schachtrup
The adult central nervous system (CNS) was considered a comparatively static tissue with little cell turnover. It is now well established that there is more plasticity than previously thought and that astrocytes act as neural stem/precursor cells (NSPCs) in the subventricular zone (SVZ). The discovery that these NSPCs can give rise to a limited number of new neurons, reactive astrocytes and oligodendrocytes contributing to brain repair in CNS disease, has raised hopes toward harnessing these cells for therapeutic interventions...
2016: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/27872209/depletion-of-neural-crest-derived-cells-leads-to-reduction-in-plasma-noradrenaline-and-alters-b-lymphopoiesis
#15
Naoki Tsunokuma, Toshiyuki Yamane, Chiaki Matsumoto, Motokazu Tsuneto, Kana Isono, Kyoko Imanaka-Yoshida, Hidetoshi Yamazaki
Hematopoietic stem cells and their lymphoid progenitors are supported by the bone marrow (BM) microenvironmental niches composed of various stromal cells and Schwann cells and sympathetic nerve fibers. Although neural crest (NC) cells contribute to the development of all the three, their function in BM is not well understood. In this study, NC-derived cells were ablated with diphtheria toxin in double-transgenic mice expressing NC-specific Cre and Cre-driven diphtheria toxin receptor with yellow fluorescent protein reporter...
November 21, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27871938/the-role-of-gpi-anchored-axonal-glycoproteins-in-neural-development-and-neurological-disorders
#16
REVIEW
Gianfranco Gennarini, Antonella Bizzoca, Sabrina Picocci, Daniela Puzzo, Patrizia Corsi, Andrew J W Furley
This review article focuses on the Contactin (CNTN) subset of the Immunoglobulin supergene family (IgC2/FNIII molecules), whose components share structural properties (the association of Immunoglobulin type C2 with Fibronectin type III domains), as well as a general role in cell contact formation and axonal growth control. IgC2/FNIII molecules include 6 highly related components (CNTN 1-6), associated with the cell membrane via a Glycosyl Phosphatidyl Inositol (GPI)-containing lipid tail. Contactin 1 and Contactin 2 share ~50 (49...
November 18, 2016: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/27862318/genome-wide-dna-methylation-analysis-identifies-megf10-as-a-novel-epigenetically-repressed-candidate-tumour-suppressor-gene-in-neuroblastoma
#17
Jessica Charlet, Ayumi Tomari, Anthony R Dallosso, Marianna Szemes, Martina Kaselova, Thomas J Curry, Bader Almutairi, Heather C Etchevers, Carmel McConville, Karim T A Malik, Keith W Brown
Neuroblastoma is a childhood cancer in which many children still have poor outcomes, emphasising the need to better understand its pathogenesis. Despite recent genome-wide mutation analyses, many primary neuroblastomas do not contain recognisable driver mutations, implicating alternate molecular pathologies such as epigenetic alterations. To discover genes that become epigenetically deregulated during neuroblastoma tumorigenesis, we took the novel approach of comparing neuroblastomas to neural crest precursor cells, using genome-wide DNA methylation analysis...
November 15, 2016: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/27860527/roles-of-ppar-transcription-factors-in-the-energetic-metabolic-switch-occurring-during-adult-neurogenesis
#18
E Di Giacomo, E Benedetti, L Cristiano, A Antonosante, M d'Angelo, A Fidoamore, D Barone, S Moreno, R Ippoliti, M P Cerù, A Giordano, A Cimini
PPARs are a class of ligand-activated transcription factors belonging to the superfamily of receptors for steroid and thyroid hormones, retinoids and vitamin D that control the expression of a large number of genes involved in lipid and carbohydrate metabolism and in the regulation of cell proliferation, differentiation and death. The role of PPARs in the CNS has been primarily associated with lipid and glucose metabolism; however, these receptors are also implicated in neural cell differentiation and death, as well as neuronal maturation...
November 18, 2016: Cell Cycle
https://www.readbyqxmd.com/read/27857203/rapid-and-efficient-crispr-cas9-gene-inactivation-in-human-neurons-during-human-pluripotent-stem-cell-differentiation-and-direct-reprogramming
#19
Alicia Rubio, Mirko Luoni, Serena G Giannelli, Isabella Radice, Angelo Iannielli, Cinzia Cancellieri, Claudia Di Berardino, Giulia Regalia, Giovanna Lazzari, Andrea Menegon, Stefano Taverna, Vania Broccoli
The CRISPR/Cas9 system is a rapid and customizable tool for gene editing in mammalian cells. In particular, this approach has widely opened new opportunities for genetic studies in neurological disease. Human neurons can be differentiated in vitro from hPSC (human Pluripotent Stem Cells), hNPCs (human Neural Precursor Cells) or even directly reprogrammed from fibroblasts. Here, we described a new platform which enables, rapid and efficient CRISPR/Cas9-mediated genome targeting simultaneously with three different paradigms for in vitro generation of neurons...
November 18, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27854261/taking-advantage-of-nature-s-gift-can-endogenous-neural-stem-cells-improve-myelin-regeneration
#20
REVIEW
Rainer Akkermann, Janusz Joachim Jadasz, Kasum Azim, Patrick Küry
Irreversible functional deficits in multiple sclerosis (MS) are directly correlated to axonal damage and loss. Neurodegeneration results from immune-mediated destruction of myelin sheaths and subsequent axonal demyelination. Importantly, oligodendrocytes, the myelinating glial cells of the central nervous system, can be replaced to some extent to generate new myelin sheaths. This endogenous regeneration capacity has so far mainly been attributed to the activation and recruitment of resident oligodendroglial precursor cells...
November 14, 2016: International Journal of Molecular Sciences
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