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https://www.readbyqxmd.com/read/29768445/nogo-receptor-1-is-expressed-by-nearly-all-retinal-ganglion-cells
#1
Alexander M Solomon, Teleza Westbrook, Greg D Field, Aaron W McGee
A variety of conditions ranging from glaucoma to blunt force trauma lead to optic nerve atrophy. Identifying signaling pathways for stimulating axon growth in the optic nerve may lead to treatments for these pathologies. Inhibiting signaling by the nogo-66 receptor 1 (NgR1) promotes the re-extension of axons following a crush injury to the optic nerve, and while NgR1 mRNA and protein expression are observed in the retinal ganglion cell (RGC) layer and inner nuclear layer, which retinal cell types express NgR1 remains unknown...
2018: PloS One
https://www.readbyqxmd.com/read/29706887/the-rs696880-polymorphism-in-the-nogo-a-receptor-gene-rtn4r-is-associated-with-susceptibility-to-sporadic-amyotrophic-lateral-sclerosis-in-the-chinese-population
#2
Lianping Xu, Jiao Li, Danyang Tian, Lu Chen, Lu Tang, Dongsheng Fan
Single-nucleotide polymorphisms (SNPs) in the Nogo-A receptor gene ( RTN4R ) have been associated with increased risk for sporadic amyotrophic lateral sclerosis (SALS) in the French population. In the present study, we investigated the associations between RTN4R tag SNPs and SALS in a large Chinese population. Four tag SNPs (rs854971, rs887765, rs696880 and rs1567871) in the RTN4R gene with an r 2 threshold of 0.8 and a minor allele frequency (MAF) greater than 0.2% were selected based on Chinese population data from HapMap...
2018: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29686613/essential-control-of-the-function-of-the-striatopallidal-neuron-by-pre-coupled-complexes-of-adenosine-a-2a-dopamine-d-2-receptor-heterotetramers-and-adenylyl-cyclase
#3
Sergi Ferré, Jordi Bonaventura, Wendy Zhu, Candice Hatcher-Solis, Jaume Taura, César Quiroz, Ning-Sheng Cai, Estefanía Moreno, Verónica Casadó-Anguera, Alexxai V Kravitz, Kimberly R Thompson, Dardo G Tomasi, Gemma Navarro, Arnau Cordomí, Leonardo Pardo, Carme Lluís, Carmen W Dessauer, Nora D Volkow, Vicent Casadó, Francisco Ciruela, Diomedes E Logothetis, Daniel Zwilling
The central adenosine system and adenosine receptors play a fundamental role in the modulation of dopaminergic neurotransmission. This is mostly achieved by the strategic co-localization of different adenosine and dopamine receptor subtypes in the two populations of striatal efferent neurons, striatonigral and striatopallidal, that give rise to the direct and indirect striatal efferent pathways, respectively. With optogenetic techniques it has been possible to dissect a differential role of the direct and indirect pathways in mediating "Go" responses upon exposure to reward-related stimuli and "NoGo" responses upon exposure to non-rewarded or aversive-related stimuli, respectively, which depends on their different connecting output structures and their differential expression of dopamine and adenosine receptor subtypes...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29684585/nogo-b-reticulon-4b-functions-as-a-negative-regulator-of-the-apoptotic-pathway-through-the-interaction-with-c-flip-in-colorectal-cancer-cells
#4
Nao Kawaguchi, Keitaro Tashiro, Kohei Taniguchi, Masaru Kawai, Keitaro Tanaka, Junji Okuda, Michihiro Hayashi, Kazuhisa Uchiyama
Nogo-B is a member of the Nogo/Reticulon-4 family and has been reported to be an inducer of apoptosis in certain types of cancer cells. However, the role of Nogo-B in human cancer remains less understood. Here, we demonstrated the functions of Nogo-B in colorectal cancer cells. In clinical colorectal cancer specimens, Nogo-B was obviously overexpressed, as determined by immunohistochemistry; and Western blot analysis showed its expression level to be significantly up-regulated. Furthermore, knockdown of Nogo-B in two colorectal cancer cell lines, SW480 and DLD-1, by transfection with si-RNA (siR) resulted in significantly reduced cell viability and a dramatic increase in apoptosis with insistent overexpression of cleaved caspase-8 and cleaved PARP...
April 20, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29669322/microrna-381-favors-repair-of-nerve-injury-through-regulation-of-the-sdf-1-cxcr4-signaling-pathway-via-lrrc4-in-acute-cerebral-ischemia-after-cerebral-lymphatic-blockage
#5
Jian-Min Piao, Wei Wu, Zhong-Xi Yang, Yu-Zhen Li, Qi Luo, Jin-Lu Yu
BACKGROUND/AIMS: Acute cerebral ischemia is a manifestation of cerebral vascular insufficiency and has a high mortality. However, the therapy for acute cerebral ischemia is still limited. This study aimed to investigate the effect of microRNA-381 (miR-381) on the repair of nerve injury in rats with acute cerebral ischemia after cerebral lymphatic blockage (CLB) by targeting leucine-rich repeat C4 protein (LRRC4) through the Stromal cell-derived factor-1/CXC chemokine receptor-4 signaling pathway...
April 13, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29615686/lentiviral-vector-delivery-of-short-hairpin-rna-to-ngr1-promotes-nerve-regeneration-and-locomotor-recovery-in-injured-rat-spinal-cord
#6
Xiaoyang Zhao, Zhiming Peng, Lingli Long, Ningning Chen, Haichong Zheng, David Y B Deng, Yong Wan
Nogo receptor 1 (NgR1) is a high-affinity receptor of myelin-associated inhibitors (MAIs), and suppresses neurogenesis. Lentiviral vector are commonly used to alter the expression of targeted genes. However, little is known about the potential function of lentiviral vector harboring NgR1 shRNA (LV-NgR1 shRNA) on neurogenesis in spinal cord injury (SCI). In this study, the rats were randomly divided into three groups: including the LN (LV-NgR1 shRNA injection), LC (LV-control shRNA injection) and Sham (laminectomy only)...
April 3, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29615517/the-nociceptin-receptor-inhibits-axonal-regeneration-and-recovery-from-spinal-cord-injury
#7
Yuichi Sekine, Chad S Siegel, Tomoko Sekine-Konno, William B J Cafferty, Stephen M Strittmatter
Axonal growth after traumatic spinal cord injury is limited by endogenous inhibitors, selective blockade of which promotes partial neurological recovery. The partial repair phenotypes suggest that compensatory pathways limit improvement. Gene expression profiles of mice deficient in Ngr1 , which encodes a receptor for myelin-associated inhibitors of axonal regeneration such as Nogo, revealed that trauma increased the mRNA expression of ORL1 , which encodes the receptor for the opioid-related peptide nociceptin...
April 3, 2018: Science Signaling
https://www.readbyqxmd.com/read/29520216/a-nogo-like-signaling-perspective-from-birth-to-adulthood-and-in-old-age-brain-expression-patterns-of-ligands-receptors-and-modulators
#8
Gabriella Smedfors, Lars Olson, Tobias E Karlsson
An appropriate strength of Nogo-like signaling is important to maintain synaptic homeostasis in the CNS. Disturbances have been associated with schizophrenia, MS and other diseases. Blocking Nogo-like signaling may improve recovery after spinal cord injury, stroke and traumatic brain injury. To understand the interacting roles of an increasing number of ligands, receptors and modulators engaged in Nogo-like signaling, the transcriptional activity of these genes in the same brain areas from birth to old age in the normal brain is needed...
2018: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29454354/cerebrospinal-fluid-level-of-nogo-receptor-1-antagonist-lateral-olfactory-tract-usher-substance-lotus-correlates-inversely-with-the-extent-of-neuroinflammation
#9
Keita Takahashi, Hideyuki Takeuchi, Yuji Kurihara, Hiroshi Doi, Misako Kunii, Kenichi Tanaka, Haruko Nakamura, Ryoko Fukai, Atsuko Tomita-Katsumoto, Mikiko Tada, Yuichi Higashiyama, Hideto Joki, Shigeru Koyano, Kohtaro Takei, Fumiaki Tanaka
BACKGROUND: Although inflammation in the central nervous system is responsible for multiple neurological diseases, the lack of appropriate biomarkers makes it difficult to evaluate inflammatory activities in these diseases. Therefore, a new biomarker reflecting neuroinflammation is required for accurate diagnosis, appropriate therapy, and comprehension of pathogenesis of these neurological disorders. We previously reported that the cerebrospinal fluid (CSF) concentration of lateral olfactory tract usher substance (LOTUS), which promotes axonal growth as a Nogo receptor 1 antagonist, negatively correlates with disease activity in multiple sclerosis, suggesting that variation in LOTUS reflects the inflammatory activities and is a useful biomarker to evaluate the disease activity...
February 17, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29440387/the-soluble-form-of-lotus-inhibits-nogo-receptor-mediated-signaling-by-interfering-with-the-interaction-between-nogo-receptor-type-1-and-p75-neurotrophin-receptor
#10
Yutaka Kawakami, Yuji Kurihara, Yu Saito, Yuki Fujita, Toshihide Yamashita, Kohtaro Takei
Nogo receptor type 1 (NgR1) is known to inhibit neuronal regeneration in the CNS. We have previously identified lateral olfactory tract usher substance (LOTUS) interacts with NgR1 and inhibits its function by blocking its ligand binding. Therefore, LOTUS is expected to have therapeutic potential for the promotion of neuronal regeneration. However, it remains unknown whether the soluble form of LOTUS (s-LOTUS) also has an inhibitory action on NgR1 function as a candidate for therapeutic agents. Here, we show that s-LOTUS inhibits NgR1-mediated signaling by inhibiting the molecular interaction between NgR1 and its co-receptor p75 neurotrophin receptor (p75NTR )...
February 9, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29373839/nogo-b-receptor-increases-the-resistance-of-estrogen-receptor-positive-breast-cancer-to-paclitaxel
#11
Ying Jin, Wenquan Hu, Tong Liu, Ujala Rana, Irene Aguilera-Barrantes, Amanda Kong, Suresh N Kumar, Bei Wang, Pin Gao, Xiang Wang, Yajun Duan, Aiping Shi, Dong Song, Ming Yang, Sijie Li, Bing Han, Gang Zhao, Zhimin Fan, Qing Robert Miao
Intrinsic or acquired chemoresistance is a hurdle in oncology. Only 7%-16% of estrogen receptor α (ERα) positive breast cancer cases achieve a pathological complete response (pCR) after neo-adjuvant chemotherapy. Nogo-B receptor (NgBR) is a cell surface receptor that binds farnesylated Ras and promotes Ras translocation to the plasma membrane. Here, we demonstrate NgBR as a potential therapeutic target for ERα positive breast cancer patients to attenuate paclitaxel resistance. NgBR knockdown enhanced paclitaxel-induced cell apoptosis by modulating expression of p53 and survivin in ERα positive breast cancer cells via NgBR-mediated PI3K/Akt and MAPK/ERK signaling pathways...
April 10, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29346419/saxs-analysis-of-a-soluble-cytosolic-ngbr-construct-including-extracellular-and-transmembrane-domains
#12
Joshua Holcomb, Maysaa Doughan, Nicholas Spellmon, Brianne Lewis, Emerson Perry, Yingxue Zhang, Lindsey Nico, Junmei Wan, Srinivas Chakravarthy, Weifeng Shang, Qing Miao, Timothy Stemmler, Zhe Yang
The Nogo-B receptor (NgBR) is involved in oncogenic Ras signaling through directly binding to farnesylated Ras. It recruits farnesylated Ras to the non-lipid-raft membrane for interaction with downstream effectors. However, the cytosolic domain of NgBR itself is only partially folded. The lack of several conserved secondary structural elements makes this domain unlikely to form a complete farnesyl binding pocket. We find that inclusion of the extracellular and transmembrane domains that contain additional conserved residues to the cytosolic region results in a well folded protein with a similar size and shape to the E...
2018: PloS One
https://www.readbyqxmd.com/read/29335844/the-adiponectin-homolog-osmotin-enhances-neurite-outgrowth-and-synaptic-complexity-via-adipor1-ngr1-signaling-in-alzheimer-s-disease
#13
Gwangho Yoon, Shahid Ali Shah, Tahir Ali, Myeong Ok Kim
Alzheimer's disease is a major neurodegenerative disease characterized by memory loss and cognitive deficits. Recently, we reported that osmotin, which is a homolog of adiponectin, improved long-term potentiation and cognitive functions in Alzheimer's disease mice. Several lines of evidence have suggested that Nogo-A and the Nogo-66 receptor 1 (NgR1), which form a complex that inhibits long-term potentiation and cognitive function, might be associated with the adiponectin receptor 1 (AdipoR1), which is a receptor for osmotin...
January 15, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29331415/nogo-b-receptor-promotes-epithelial-mesenchymal-transition-in-non-small-cell-lung-cancer-cells-through-the-ras-erk-snail1-pathway
#14
Donghua Wu, Baofeng Zhao, Xiaoyu Qi, Fang Peng, Hailu Fu, Xinming Chi, Qing Robert Miao, Shujuan Shao
Nogo-B receptor (NgBR) is a specific receptor of Nogo-B that regulates vascular remodeling and angiogenesis. Previously, we found that NgBR promotes the membrane translocation and activation of Ras in breast cancer cells and enhances the chemoresistance of hepatocellular carcinoma cells to 5-fluorouracil. However, the role of NgBR in lung cancer has not yet been elucidated. In the present study, we found that NgBR knockdown inhibited epithelial-mesenchymal transition (EMT) in non-small cell lung cancer (NSCLC) cells in vitro and metastasis of NSCLC cells in vivo...
April 1, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29327067/overexpression-of-nogo-receptor-3-ngr3-correlates-with-poor-prognosis-and-contributes-to-the-migration-of-epithelial-cells-of-nasopharyngeal-carcinoma-patients
#15
Jiang-Yi He, Ping Han, Yu Zhang, Yong-Dong Liu, Shi-Jian Song, Guo-Kai Feng, Yu An, Ai-Jun Zhou, Hong-Bo Wang, Li Yuan, Zhi-Rui Lin, Tian-Liang Xia, Man-Zhi Li, Yan-Min Liu, Xiao-Ming Huang, Hua Zhang, Qian Zhong
Lymph node metastasis (N classification) is one of the most important prognostic factors of nasopharyngeal carcinoma (NPC), and nerve involvement is associated with the transition of the N category in NPC patients. Although the nervous system has been reported to participate in many types of cancer progression, its functions in NPC progression remains unknown. Through analysis of gene profiling data, we demonstrate an enrichment of genes associated with neuronal development and differentiation in NPC tissues and cell lines...
April 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29325876/nogo-a-interacts-with-trka-to-alter-nerve-growth-factor-signaling-in-nogo-a-overexpressing-pc12-cells
#16
Robert G Farrer, Gwendolyn L Kartje
The Nogo-A protein, originally discovered as a potent myelin-associated inhibitor of neurite outgrowth, is also expressed by certain neurons, especially during development and after injury, but its role in neuronal function is not completely known. In this report, we overexpressed Nogo-A in PC12 cells to use as a model to identify potential neuronal signaling pathways affected by endogenously expressed Nogo-A. Unexpectedly, our results show that viability of Nogo-A-overexpressing cells was reduced progressively due to apoptotic cell death following NGF treatment, but only after 24 h...
April 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29229841/predicting-glycosaminoglycan-surface-protein-interactions-and-implications-for-studying-axonal-growth
#17
Adam R Griffith, Claude J Rogers, Gregory M Miller, Ravinder Abrol, Linda C Hsieh-Wilson, William A Goddard
Cell-surface carbohydrates play important roles in numerous biological processes through their interactions with various protein-binding partners. These interactions are made possible by the vast structural diversity of carbohydrates and the diverse array of carbohydrate presentations on the cell surface. Among the most complex and important carbohydrates are glycosaminoglycans (GAGs), which display varied stereochemistry, chain lengths, and patterns of sulfation. GAG-protein interactions participate in neuronal development, angiogenesis, spinal cord injury, viral invasion, and immune response...
December 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29217477/activation-of-hepatic-nogo-b-receptor-expression-a-new-anti-liver-steatosis-mechanism-of-statins
#18
Wenwen Zhang, Xiaoxiao Yang, Yuanli Chen, Wenquan Hu, Lipei Liu, Xiaomeng Zhang, Mengyang Liu, Lei Sun, Ying Liu, Miao Yu, Xiaoju Li, Luyuan Li, Yan Zhu, Qing Robert Miao, Jihong Han, Yajun Duan
Deficiency of hepatic Nogo-B receptor (NgBR) expression activates liver X receptor α (LXRα) in an adenosine monophosphate-activated protein kinase α (AMPKα)-dependent manner, thereby inducing severe hepatic lipid accumulation and hypertriglyceridemia. Statins have been demonstrated non-cholesterol lowering effects including anti-nonalcoholic fatty liver disease (NAFLD). Herein, we investigated if the anti-NAFLD function of statins depends on activation of NgBR expression. In vivo, atorvastatin protected apoE deficient or NgBR floxed, but not hepatic NgBR deficient mice, against Western diet (WD)-increased triglyceride levels in liver and serum...
February 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29196321/mt3-mmp-promotes-excitatory-synapse-formation-by-promoting-nogo-66-receptor-ectodomain-shedding
#19
Ricardo L Sanz, Gino B Ferraro, Johannes Kacervosky, Charleen Salesse, Elizabeth Gowing, Luyang Hua, Isabel Rambaldi, Francois Beaubien, Kenn Holmbeck, J F Cloutier, Martin Lévesque, Keith Murai, Alyson E Fournier
Cell-surface molecules are dynamically regulated at the synapse to assemble and disassemble adhesive contacts that are important for synaptogenesis and for tuning synaptic transmission. Metalloproteinases dynamically regulate cellular behaviors through the processing of cell surface molecules. In the present study, we evaluated the role of membrane-type metalloproteinases (MT-MMPs) in excitatory synaptogenesis. We find that MT3-MMP and MT5-MMP are broadly expressed in the mouse cerebral cortex and that MT3-MMP loss-of-function interferes with excitatory synapse development in dissociated cortical neurons and in vivo We identify Nogo-66 receptor (NgR1) as an MT3-MMP substrate that is required for MT3-MMP-dependent synapse formation...
January 17, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29193059/exercise-improves-nicotine-reward-associated-cognitive-behaviors-and-related-%C3%AE-7-nachr-mediated-signal-transduction-in-adolescent-rats
#20
Yuehui Zhou, Cuicui Li, Rena Li, Chenglin Zhou
The adolescent brain is vulnerable to long-lasting cognitive disturbances resulting from nicotine exposure. Although exercise has been used as an intervention for ameliorating cognitive deficits in various disorders, the effect on cognitive changes induced by nicotine exposure and its underlying mechanisms remain unclear. The purpose of this study was to investigate the effects of exercise on nicotine reward-associated cognitive behaviors in adolescent rats subjected to nicotine conditioned place preference paradigm (CPP)...
November 29, 2017: Journal of Cellular Physiology
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