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https://www.readbyqxmd.com/read/28429571/melatonin-antagonizes-interleukin-18-mediated-inhibition-on-neural-stem-cell-proliferation-and-differentiation
#1
Zheng Li, Xingye Li, Matthew T V Chan, William Ka Kei Wu, DunXian Tan, Jianxiong Shen
Neural stem cells (NSCs) are self-renewing, pluripotent and undifferentiated cells which have the potential to differentiate into neurons, oligodendrocytes and astrocytes. NSC therapy for tissue regeneration, thus, gains popularity. However, the low survivals rate of the transplanted cell impedes its utilities. In this study, we tested whether melatonin, a potent antioxidant, could promote the NSC proliferation and neuronal differentiation, especially, in the presence of the pro-inflammatory cytokine interleukin-18 (IL-18)...
April 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28427055/aquaporin-4-mediates-the-suppressive-effect-of-lipopolysaccharide-on-hippocampal-neurogenesis
#2
Rui Liang, Shoulei Yong, Xu Huang, Hui Kong, Gang Hu, Yi Fan
OBJECTIVE: Aquaporin-4 (AQP4), a key molecule for water homeostasis in the brain, is associated with adult neurogenesis, but its mechanisms regulating adult neural stem cells (aNSC) remain largely unexplored. Neuroinflammation has a relevant influence on adult neurogenesis, which is a common feature in various neurodegenerative diseases. Considering the possible link between neuroinflammation and AQP4, we speculate that AQP4 may mediate the synthesis and release of proinflammatory cytokines in glia and then indirectly regulate adult hippocampal neurogenesis...
April 21, 2017: Neuroimmunomodulation
https://www.readbyqxmd.com/read/28422949/heparin-binding-egf-like-growth-factor-promotes-neuronal-nitric-oxide-synthase-expression-and-protects-the-enteric-nervous-system-after-necrotizing-enterocolitis
#3
Yu Zhou, Yijie Wang, Jacob Olson, Jixin Yang, Gail E Besner
BACKGROUND: Neonatal necrotizing enterocolitis (NEC) is associated with alterations of the ENS, with loss of neuronal nitric oxide synthase (nNOS) expressing neurons in the intestine. The aims of this study were to investigate the roles of heparin binding EGF-like growth factor (HB-EGF) in neural stem cell (NSC) differentiation, nNOS expression, and effects on ENS integrity during experimental NEC. METHODS: The effects of HB-EGF on NSC differentiation and nNOS production were determined using cultured enteric NSC...
April 19, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28413817/dataset-in-support-of-the-generation-of-niemann-pick-disease-type-c1-patient-specific-ips-cell-lines-carrying-the-novel-npc1-mutation-c-1180t-c-or-the-prevalent-c-3182t-c-mutation-analysis-of-pluripotency-and-neuronal-differentiation
#4
Franziska Peter, Michaela Trilck, Michael Rabenstein, Arndt Rolfs, Moritz J Frech
Data presented in this article demonstrate the generation and characterization of two novel Niemann-Pick disease Type C1 (NPC1) patient-specific induced pluripotent stem cell (iPSC) lines, related to the research article Trilck et al. (Diversity of Glycosphingolipid GM2 and Cholesterol Accumulation in NPC1 Patient-Specific iPSC-Derived Neurons; Brain Res.; 2017; 1657:52-61. doi: 10.1016/j.brainres.2016.11.031). For reprogramming fibroblasts, carrying the novel homozygous mutation c.1180T>C and the prevalent homozygous mutation c...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28409313/extracellular-regulation-of-the-mitotic-spindle-and-fate-determinants-driving-asymmetric-cell-division
#5
Prestina Smith, Mark Azzam, Lindsay Hinck
Stem cells use mode of cell division, symmetric (SCD) versus asymmetric (ACD), to balance expansion with self-renewal and the generation of daughter cells with different cell fates. Studies in model organisms have identified intrinsic mechanisms that govern this process, which involves partitioning molecular components between daughter cells, frequently through the regulation of the mitotic spindle. Research performed in vertebrate tissues is revealing both conservation of these intrinsic mechanisms and crucial roles for extrinsic cues in regulating the frequency of these divisions...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/28408732/glial-cell-line-derived-neurotrophic-factor-transfected-placenta-derived-versus-bone-marrow-derived-mesenchymal-cells-for-treating-spinal-cord-injury
#6
Yao Lu, Hui Gao, Man Zhang, Bing Chen, Huilin Yang
BACKGROUND Placenta-derived mesenchymal stem cells (PMSCs) were isolated from placenta and had differentiation and self-renewal potential. We transfected PMSCs with glial cell line-derived neurotrophic factor (GDNF) and compared their effect for repairing spinal cord injury (SCI) with that of GDNF-transfected bone marrow-derived mesenchymal stem cell (BMSC). MATERIAL AND METHODS The PMSCs were isolated from Sprague-Dawley rat placenta; BMSCs were isolated from Sprague-Dawley rat thigh bone marrow. Primary cultured BMSCs and PMSCs were uniformly spindle-shaped...
April 14, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28408662/the-gdnf-responsive-phosphoprotein-landscape-identifies-raptor-phosphorylation-required-for-spermatogonial-progenitor-cell-proliferation
#7
Min Wang, Yueshuai Guo, Mei Wang, Tao Zhou, Yuanyuan Xue, Guihua Du, Xiang Wei, Jing Wang, Lin Qi, Hao Zhang, Lufan Li, Lan Ye, Xuejiang Guo, Xin Wu
Cytokine-dependent renewal of stem cells is a fundamental requisite for tissue homeostasis and regeneration. Spermatogonial progenitor cells (SPCs) including stem cells support life-long spermatogenesis and male fertility, but pivotal phosphorylation events that regulate fate decisions in SPCs remain unresolved. Here, we described a quantitative mass-spectrometry-based proteomic and phosphoproteomic analyses of SPCs following sustained stimulation with glial cell-derived neurotrophic factor (GDNF), an extrinsic factor supporting SPC proliferation...
April 13, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28402059/molecular-markers-of-putative-spermatogonial-stem-cells-in-the-domestic-cat
#8
S J Bedford-Guaus, S Kim, L Mulero, J M Vaquero, C Morera, R Adan-Milanès, A Veiga, Á Raya
Spermatogonial stem cells (SSCs) are an important tool for fertility preservation and species conservation. The ability to expand SSCs by in vitro culture is a crucial premise for their use in assisted reproduction. Because SSCs represent a small proportion of the germ cells in the adult testis, culture success is aided by pre-enrichment through sorting techniques based on cell surface-specific markers. Given the importance of the domestic cat as a model for conservation of endangered wild felids, herein we sought to examine culture conditions as well as molecular markers for cat SSCs...
April 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28400789/the-promise-of-stem-cell-based-therapeutics-in-ophthalmology
#9
REVIEW
Israel Aharony, Shalom Michowiz, Nitza Goldenberg-Cohen
The promising role of cellular therapies in the preservation and restoration of visual function has prompted intensive efforts to characterize embryonic, adult, and induced pluripotent stem cells for regenerative purposes. Three main approaches to the use of stem cells have been described: sustained drug delivery, immunomodulation, and differentiation into various ocular structures. Studies of the differentiation capacity of all three types of stem cells into epithelial, neural, glial and vascular phenotypes have reached proof-of-concept in culture, but the correction of vision is still in the early developmental stages, and the requirements for effective in vivo implementation are still unclear...
February 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28395742/reporting-on-methods-to-generate-and-purify-rodent-and-human-oligodendrocytes-from-different-sources
#10
Mehdi Djelloul, Carla Azevedo, Yuriy Pomeshchik, Anna Hammarberg, Laurent Roybon
Oligodendrocytes are part of the glial cells located in the central nervous system, capable of providing trophic support to neurons and ensheathing their axons. These cells can become dysfunctional under pathologic condition. Rodent and human pluripotent stem cells are inexhaustible sources for producing oligodendrocytes that can be used for disease modeling and cell replacement therapy studies. They also offer many opportunities to model the contribution of oligodendrocytes in non-genetic disorders such as multiple system atrophy...
April 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28394252/steroid-hormone-induction-of-temporal-gene-expression-in-drosophila-brain-neuroblasts-generates-neuronal-and-glial-diversity
#11
Mubarak Hussain Syed, Brandon Mark, Chris Q Doe
An important question in neuroscience is how stem cells generate neuronal diversity. During Drosophila embryonic development, neural stem cells (neuroblasts) sequentially express transcription factors that generate neuronal diversity; regulation of the embryonic temporal transcription factor cascade is lineage-intrinsic. In contrast, larval neuroblasts generate longer ~50 division lineages, and currently only one mid-larval molecular transition is known: Chinmo/Imp/Lin-28+ neuroblasts transition to Syncrip+ neuroblasts...
April 10, 2017: ELife
https://www.readbyqxmd.com/read/28392899/scutellarin-may-alleviate-cognitive-deficits-in-a-mouse-model-of-hypoxia-by-promoting-proliferation-and-neuronal-differentiation-of-neural-stem-cells
#12
Wei-Wei Wang, Jian-Hong Han, Lin Wang, Tian-Hao Bao
OBJECTIVES: Scutellarin, a flavonoid extracted from the medicinal herb Erigeron breviscapus Hand-Mazz, protects neurons from damage and inhibits glial activation. Here we examined whether scutellarin may also protect neurons from hypoxia-induced damage. MATERIALS AND METHODS: Mice were exposed to hypoxia for 7 days and then administered scutellarin (50 mg/kg/d) or vehicle for 30 days Cognitive impairment in the two groups was assessed using the Morris water maze test, cell proliferation in the hippocampus was compared using 5-bromo-2-deoxyuridine (BrdU) immunohistochemistry, and hippocampal levels of nestin and neuronal class III β-tubulin (Tuj-1) were measured using Western blotting...
March 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28390174/suppression-of-basic-fibroblast-growth-factor-expression-by-antisense-oligonucleotides-inhibits-neural-stem-cell-proliferation-and-differentiation-in-rat-models-with-focal-cerebral-infarction
#13
Chao Li, Li-He Che, Lei Shi, Jin-Lu Yu
This study is designed to investigate the role of basic fibroblast growth factor (bFGF) antisense oligonucleotide (ASODN) on the proliferation and differentiation of neural stem cells (NSCs) in rat models with focal cerebral infarction (CI). Seventy-five Sprague-Dawlay (SD) rats were randomly divided into the control, sham, middle cerebral artery occlusion (MCAO), MCAO + nonsense oligonucleotide (NODN) and MCAO + ASODN groups. Proliferation and differentiation of NSCs were detected by bromodeoxyuridine (BrdU) and immunofluorescence staining, respectively...
April 8, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28384239/induction-of-osteoblastic-differentiation-of-neural-crest-derived-stem-cells-from-hair-follicles
#14
Eri Urano-Morisawa, Masamichi Takami, Tetsuo Suzawa, Akifumi Matsumoto, Noriko Osumi, Kazuyoshi Baba, Ryutaro Kamijo
The neural crest (NC) arises near the neural tube during embryo development. NC cells migrate throughout the embryo and have potential to differentiate into multiple cell types, such as peripheral nerves, glial, cardiac smooth muscle, endocrine, and pigment cells, and craniofacial bone. In the present study, we induced osteoblast-like cells using whisker follicles obtained from the NC of mice. Hair follicle cells derived from the NC labeled with enhanced green fluorescent protein (EGFP) were collected from protein zero-Cre/floxed-EGFP double transgenic mice and cultured, then treated and cultured in stem cell growth medium...
2017: PloS One
https://www.readbyqxmd.com/read/28374921/intracerebral-delivery-of-the-m2-polarizing-cytokine-interleukin-13-using-mesenchymal-stem-cell-implants-in-a-model-of-temporal-lobe-epilepsy-in-mice
#15
Idrish Ali, Stephanie Aertgeerts, Debbie Le Blon, Daniele Bertoglio, Chloe Hoornaert, Peter Ponsaerts, Stefanie Dedeurwaerdere
OBJECTIVES: Neuroinflammation plays a critical role in the pathophysiology of mesial temporal lobe epilepsy. We aimed to evaluate whether intracerebral transplantation of interleukin 13-producing mesenchymal stem cells (IL-13 MSCs) induces an M2 microglia/macrophage activation phenotype in the hippocampus with an epileptogenic insult, thereby providing a neuroprotective environment with reduced epileptogenesis. METHODS: Genetically engineered syngeneic IL-13 MSCs or vehicle was injected within the hippocampus 1 week before the intrahippocampal kainic acid-induced status epilepticus (SE) in C57BL/6J mice...
April 4, 2017: Epilepsia
https://www.readbyqxmd.com/read/28370142/morphological-study-of-a-connexin-43-gfp-reporter-mouse-highlights-glial-heterogeneity-amacrine-cells-and-olfactory-ensheathing-cells
#16
Panos Theofilas, Christian Steinhäuser, Martin Theis, Amin Derouiche
Connexin 43 (Cx43) is the main astrocytic connexin and forms the basis of the glial syncytium. The morphology of connexin-expressing cells can be best studied in transgenic mouse lines expressing cytoplasmic fluorescent reporters, since immunolabeling the plaques can obscure the shapes of the individual cells. The Cx43kiECFP mouse generated by Degen et al. (FASEBJ 26:4576, 2012) expresses cytosolic ECFP and has previously been used to establish that Cx43 may not be expressed by all astrocytes within a population, and this can vary in a region-dependent way...
March 30, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28369535/the-production-of-glial-cell-line-derived-neurotrophic-factor-by-human-sertoli-cells-is-substantially-reduced-in-sertoli-cell-only-testes
#17
D Singh, D A Paduch, P N Schlegel, K E Orwig, A Mielnik, A Bolyakov, W W Wright
STUDY QUESTION: Do human Sertoli cells in testes that exhibit the Sertoli cell-only (SCO) phenotype produce substantially less glial cell line-derived neurotrophic factor (GDNF) than Sertoli cells in normal testes? SUMMARY ANSWER: In human SCO testes, both the amounts of GDNF mRNA per testis and the concentration of GDNF protein per Sertoli cell are markedly reduced as compared to normal testes. WHAT IS KNOWN ALREADY: In vivo, GDNF is required to sustain the numbers and function of mouse spermatogonial stem cells (SSCs) and their immediate progeny, transit-amplifying progenitor spermatogonia...
May 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28367160/neural-stem-cell-heterogeneity-through-time-and-space-in-the-ventricular-subventricular-zone
#18
Gabrielle Rushing, Rebecca A Ihrie
BACKGROUND: The origin and classification of neural stem cells (NSCs) has been a subject of intense investigation for the past two decades. Efforts to categorize NSCs based on their location, function and expression have established that these cells are a heterogeneous pool in both the embryonic and adult brain. The discovery and additional characterization of adult NSCs has introduced the possibility of using these cells as a source for neuronal and glial replacement following injury or disease...
August 2016: Frontiers in Biology
https://www.readbyqxmd.com/read/28365701/suppression-of-microrna-383-enhances-therapeutic-potential-of-human-bone-marrow-derived-mesenchymal-stem-cells-in-treating-spinal-cord-injury-via-gdnf
#19
Guo-Jun Wei, Gang An, Zuo-Wei Shi, Kai-Fu Wang, Ying Guan, Yan-Song Wang, Bo Han, En-Ming Yu, Peng-Fei Li, Da-Ming Dong, Li-Ping Wang, Zhao-Wei Teng, De-Lai Zhao
BACKGROUND/AIMS: Transplantation of bone-marrow-derived mesenchymal stem cells (MSCs) has been used to treat spinal cord injury (SCI) to enhance tissue repair and neural cell regeneration. Glial cell line derived neurotrophic factor (GDNF) is an identified neural growth and survival factor. Here, we examined whether modification of GDNF levels in MSCs may further increase the potential of MSCs in promoting neural cell regeneration and subsequently the therapeutic outcome. METHODS: We examined the mRNA and protein levels of GDNF in human MSCs by RT-qPCR and Western blot, respectively...
March 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28358926/genetically-engineered-rat-gliomas-pdgf-driven-tumor-initiation-and-progression-in-tv-a-transgenic-rats-recreate-key-features-of-human-brain-cancer
#20
Nina P Connolly, Jesse A Stokum, Craig S Schneider, Tatsuya Ozawa, Su Xu, Rebeca Galisteo, Rudolph J Castellani, Anthony J Kim, J Marc Simard, Jeffrey A Winkles, Eric C Holland, Graeme F Woodworth
Previously rodent preclinical research in gliomas frequently involved implantation of cell lines such as C6 and 9L into the rat brain. More recently, mouse models have taken over, the genetic manipulability of the mouse allowing the creation of genetically accurate models outweighed the disadvantage of its smaller brain size that limited time allowed for tumor progression. Here we illustrate a method that allows glioma formation in the rat using the replication competent avian-like sarcoma (RCAS) virus / tumor virus receptor-A (tv-a) transgenic system of post-natal cell type-specific gene transfer...
2017: PloS One
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