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Neurotrophin 3

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https://www.readbyqxmd.com/read/28418861/brain-derived-neurotrophic-factor-involved-epigenetic-repression-of-ugt2b7-in-colorectal-carcinoma-a-mechanism-to-alter-morphine-glucuronidation-in-tumor
#1
Zi-Zhao Yang, Li Li, Ming-Cheng Xu, Hai-Xing Ju, Miao Hao, Jing-Kai Gu, Zai-Jie Jim Wang, Hui-Di Jiang, Lu-Shan Yu, Su Zeng
Uridine diphosphate-glucuronosyltransferase (UGT) 2B7, as one of significant drug enzymes, is responsible on the glucuronidation of abundant endobiotics or xenobiotics. We here report that it is markedly repressed in the tumor tissues of colorectal carcinoma (CRC) patients. Accordingly, morphine in CRC cells will stimulate the expression of its main metabolic enzyme, UGT2B7 during tolerance generation by activating the positive signals in histone 3, especially for trimethylated lysine 27 (H3K4Me3) and acetylated lysine 4 (H3K27Ac)...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28402394/autophagy-and-trkc-nt-3-signaling-joined-forces-boost-the-hypoxic-glioblastoma-cell-survival
#2
Soha Jawhari, Barbara Bessette, Sophie Hombourger, Karine Durand, Aurélie Lacroix, François Labrousse, Marie-Odile Jauberteau, Marie-Hélène Ratinaud, Mireille Verdier
Glioblastoma multiform (GBM), the most common and aggressive primary brain tumor, is characterized by a high degree of hypoxia and resistance to therapy because of its adaptation capacities, including autophagy and growth factors signaling. In this study, we show an efficient hypoxia-induced survival autophagy in four different GBM cell lines (U87MG, M059K, M059J and LN-18) and an activation of a particular neurotrophin signaling pathway. Indeed, the enhancement of both TrkC and NT-3 was followed by downstream p38MAPK phosphorylation, suggesting the occurrence of a survival autocrine loop...
March 31, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28392360/matrine-promotes-nt3-expression-in-cns-cells-in-experimental-autoimmune-encephalomyelitis
#3
Ming-Liang Zhang, Xiao-Jian Zhang, Jian Kang, Hui-Jun Zhang, Xiao-Long Chen, Nan Liu, Shu-Qing Liu, Wen-Di Ma, Guang-Xian Zhang, Lin Zhu
Neurotrophin 3 (NT3) is a potent neurotrophic factor for promoting remyelination and recovery of neuronal function; upregulation of its expression in the central nervous system (CNS) is thus of major therapeutic importance for neurological deficits. Matrine (MAT), a quinolizidine alkaloid derived from the herb Radix Sophorae Flavescent, has been recently reported to effectively ameliorate clinical signs in experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis (MS), by secreting antiinflammatory cytokines...
April 6, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28370021/roles-of-neurotrophins-in-skeletal-tissue-formation-and-healing
#4
REVIEW
Yu-Wen Su, Xin-Fu Zhou, Bruce K Foster, Brian L Grills, Jiake Xu, Cory J Xian
Neurotrophins and their receptors are key molecules that are known to be critical in regulating nervous system development and maintenance and have been recognized to be also involved in regulating tissue formation and healing in skeletal tissues. Studies have shown that neurotrophins and their receptors are widely expressed in skeletal tissues, implicated in chondrogenesis, osteoblastogenesis and osteoclastogenesis, and are also involved in regulating tissue formation and healing events in skeletal tissue...
March 30, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28367116/microglial-intracellular-ca-2-signaling-in-synaptic-development-and-its-alterations-in-neurodevelopmental-disorders
#5
REVIEW
Yoshito Mizoguchi, Akira Monji
Autism spectrum disorders (ASDs) are neurodevelopmental disorders characterized by deficits in social interaction, difficulties with language and repetitive/restricted behaviors. Microglia are resident innate immune cells which release many factors including proinflammatory cytokines, nitric oxide (NO) and brain-derived neurotrophic factor (BDNF) when they are activated in response to immunological stimuli. Recent in vivo imaging has shown that microglia sculpt and refine the synaptic circuitry by removing excess and unwanted synapses and be involved in the development of neural circuits or synaptic plasticity thereby maintaining the brain homeostasis...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28356268/neurotrophin-3-up-regulates-proliferation-and-collagen-production-in-human-aortic-valve-interstitial-cells-a-potential-role-in-aortic-valve-sclerosis
#6
Qingzhou Yao, Rui Song, Lihua Ao, Joseph C Cleveland, David A Fullerton, Xianzhong Meng
Calcific aortic valve disease (CAVD) is a leading cardiovascular disorder in the elderly. Diseased aortic valves are characterized by sclerosis (fibrosis) and nodular calcification. Sclerosis, an early pathological change, is caused by aortic valve interstitial cell (AVIC) proliferation and over-production of extracellular matrix (ECM) proteins. However, the mechanism of aortic valve sclerosis remains unclear. Recently, we observed that diseased human aortic valves over-express growth factor neurotrophin 3 (NT3)...
March 29, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28347639/neurite-outgrowth-in-cultured-mouse-pelvic-ganglia-effects-of-neurotrophins-and-bladder-tissue
#7
Mari Ekman, Baoyi Zhu, Karl Swärd, Bengt Uvelius
Neurotrophic factors regulate survival and growth of neurons. The urinary bladder is innervated via both sympathetic and parasympathetic neurons located in the major pelvic ganglion. The aim of the present study was to characterize the effects of the neurotrophins nerve growth factor (NGF), brain derived neurotrophic factor (BDNF) and neurotrophin 3 (NT-3) on the sprouting rate of sympathetic and parasympathetic neurites from the female mouse ganglion. The pelvic ganglion was dissected out and attached to a petri dish and cultured in vitro...
March 18, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28344123/effects-of-campylobacter-jejuni-lipopolysaccharide-on-axonal-injury-in-the-spinal-cord-in-rats
#8
Xusheng Li, Haohao Chen, Hongmiao Tao, Ye Hu, Hongqiang Lou
To explore the effects of Campylobacter jejuni lipopolysaccharide (Cj-LPS) on axonal injury in the spinal cord. Wistar rats were divided into the control (NC) group, model group (Cj-LPS), and LPS antibody group (Anti-LPS). Rats in the NC group were injected with a mixture of normal saline and complete Freund's adjuvant (CFA) while those in Cj-LPS group were injected with Cj-LPS, composed of LPS, CFA, and saline. Rats were sacrificed at 4th week and 6th week after injection, and hematoxylin and eosin (HE) staining was performed on the spinal cord sections...
March 23, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28327516/an-extract-from-shrimp-processing-by-products-protects-sh-sy5y-cells-from-neurotoxicity-induced-by-a%C3%AE-25-35
#9
Yongping Zhang, Guangling Jiao, Cai Song, Shelly Gu, Richard E Brown, Junzeng Zhang, Pingcheng Zhang, Jacques Gagnon, Steven Locke, Roumiana Stefanova, Claude Pelletier, Yi Zhang, Hongyu Lu
Increased evidence suggests that marine unsaturated fatty acids (FAs) can protect neurons from amyloid-β (Aβ)-induced neurodegeneration. Nuclear magnetic resonance (NMR), high performance liquid chromatography (HPLC) and gas chromatography (GC) assays showed that the acetone extract 4-2A obtained from shrimp Pandalus borealis industry processing wastes contained 67.19% monounsaturated FAs and 16.84% polyunsaturated FAs. The present study evaluated the anti-oxidative and anti-inflammatory effects of 4-2A in Aβ25-35-insulted differentiated SH-SY5Y cells...
March 22, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28322842/simultaneous-blockade-of-nmda-receptors-and-parp-1-activity-synergistically-alleviate-immunoexcitotoxicity-and-bioenergetics-in-3-nitropropionic-acid-intoxicated-mice-evidences-from-memantine-and-3-aminobenzamide-interventions
#10
Saravana Babu Chidambaram, Ranju Vijayan, Sathiya Sekar, Sugumar Mani, Barathidsan Rajamani, Ramakrishnan Ganapathy
Interlink between excitotoxicity and cellular bioenergetics depletion is implicated as one of the central deteriorative pathways in many neurodegenerative diseases including Huntington's disease (HD). Chronic administration of 3-nitropropionic acid (3-NP) depletes ATP and NAD(+;) and increases TNFα, IL-6 and glutamate content resulting in "immunoexcitotoxicity". Present study was designed to determine whether the combination of memantine (MN) and 3-aminobenzamide (3-AB), PARP inhibitor, can ameliorate immunoexcitotoxicity and improve bioenergetics in a better manner than individual administration against 3-NP intoxication in mice...
March 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28321600/post-6-ohda-lesion-exposure-to-stress-affects-neurotrophic-factor-expression-and-aggravates-motor-impairment
#11
Phumzile Nomfundo Ngema, Musa Vuyisile Mabandla
Chronic exposure to stress amplifies locomotor deficits and exacerbates dopamine neuron loss in an animal model for Parkinson's disease. The release of neurotrophic factors such as glial cell-line derived neurotrophic factor (GDNF) and neurotrophin-3 (NT-3) following neuronal injury attenuates exacerbated degeneration of these neurons. In this study, the neurotoxin 6-hydroxydopamine (6-OHDA) was injected unilaterally into the medial forebrain bundle of male Sprague Dawley rats. A subset of these rats was subjected to post-lesion restraint stress after which the effect of exposure to stress on locomotor activity (forelimb akinesia test), neurotrophic factor (GDNF and NT-3) and corticosterone concentration was assessed...
March 20, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28320268/neonatal-proinflammatory-stress-induces-accumulation-of-corticosterone-and-interleukin-6-in-the-hippocampus-of-juvenile-rats-potential-mechanism-of-synaptic-plasticity-impairments
#12
M V Onufriev, S V Freiman, D I Peregud, I V Kudryashova, A O Tishkina, M Yu Stepanichev, N V Gulyaeva
Infectious diseases in early postnatal ontogenesis can induce neuroinflammation, disrupt normal central nervous system development, and contribute to pathogenesis of cerebral pathologies in adults. To study long-term consequences of such early stress, we induced neonatal proinflammatory stress (NPS) by injecting bacterial lipopolysaccharide into rat pups on postnatal days 3 and 5 and then assessed the levels of corticosterone, proinflammatory cytokines and their mRNAs, and neurotrophins and their mRNAs in the hippocampus and neocortex of the one-month-old animals...
March 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28320116/in-vitro-non-viral-murine-pro-neurotrophin-3-gene-transfer-into-rat-bone-marrow-stromal-cells
#13
Shahram Darabi, Taki Tiraihi, AliReza Delshad, Majid Sadeghizadeh, Wisam Khalil, Taher Taheri
Neurotrophin 3 (NT-3) is an important factor for promoting prenatal neural development, as well as regeneration, axogenesis and plasticity in postnatal life. Therapy with NT-3 was reported to improve the condition of patients suffering from degenerative diseases and traumatic injuries, however, the disadvantage of NT-3 protein delivery is its short half-life, thus our alternative approach is the use of NT-3 gene therapy. In this study, the bone marrow stromal cells (BMSCs) were isolated from adult rats, cultured for 4 passages and transfected with either pEGFP-N1 or a constructed vector containing murine proNT-3 (pSecTag2/HygroB-murine proNT-3) using Lipofectamine 2000 followed by Hygromycin B (200mg/kg)...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28306638/the-proinflammatory-cytokines-il-1%C3%A3-and-tnf-%C3%AE-influence-human-annulus-cell-signaling-cues-for-neurite-growth-in-vitro-co-culture-studies
#14
Helen E Gruber, Brittany Jones, Emilio Marrero, Edward N Hanley
STUDY DESIGN: IRB-approved research using human annulus cells co-cultured with F11 nerve cells. OBJECTIVE: To perform functional, kinetic assays of neurite dynamics and media neurotrophin measurement to test whether proinflammatory cytokines influence annulus cells' signaling cues for neurite growth/repulsion. SUMMARY OF BACKGROUND DATA: Nerves grow in response to signaling molecules called neurotrophins which disc cells produce (e.g. brain-derived neurotrophic factor (BDNF), glial cell-line derived neurotrophic factor (GDNF) and neurotrophin 3 (NT3)) and which influence neuron survival, differentiation and migration...
March 16, 2017: Spine
https://www.readbyqxmd.com/read/28303740/neurotrophins-and-proneurotrophins
#15
Julien Gibon, Philip A Barker
Neurotrophins have been intensively studied and have multiple roles in the brain. Neurotrophins are first synthetized as proneurotrophins and then cleaved intracellularly and extracellularly. Increasing evidences demonstrate that proneurotrophins and mature neurotrophins exerts opposing role in the central nervous system. In the present review, we explore the role of nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin 3 (NT3), and neurotrophin 4 (NT4) and their respective proform in cellular processes related to learning and memory...
March 1, 2017: Neuroscientist: a Review Journal Bringing Neurobiology, Neurology and Psychiatry
https://www.readbyqxmd.com/read/28293395/expression-pattern-of-neurotrophins-and-their-receptors-during-neuronal-differentiation-of-adipose-derived-stem-cells-in-simulated-microgravity-condition
#16
Vajiheh Zarrinpour, Zahra Hajebrahimi, Mojtaba Jafarinia
OBJECTIVES: Studies have confirmed that microgravity, as a mechanical factor, influences both differentiation and function of mesenchymal stem cells. Here we investigated the effects of simulated microgravity on neural differentiation of human adipose-derived stem cells (ADSCs). MATERIALS AND METHODS: We have used a fast rotating clinostat (clinorotation) to simulate microgravity condition. Real-time PCR and flow cytometry analysis were used to evaluate the regulation of neurotrophins, their receptors, and neural markers by simulated microgravity and their impact on neural differentiation of cells...
February 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28277116/regulation-of-endometrial-cell-proliferation-by-estrogen-induced-bdnf-signaling-pathway
#17
Fangzheng Dong, Qiyao Zhang, Wei Kong, Jun Chen, Junlan Ma, Li Wang, Yanian Wang, Yan Liu, Yan Li, Ji Wen
Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophin growth factors family. Recent studies indicated that the level of BDNF in follicular fluid is a marker for oocyte quality and infertility. Here, we intend to further investigate the function of BDNF and its signaling pathway in the regulation of endometrial cells proliferation. We found that BDNF is a critical growth factor in endometrial cells. Activation of signal transducer and activator of transcription 3 signaling pathway is required for BNDF-regulated endometrial cell proliferation...
March 2, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28273811/targeting-neurotrophins-to-specific-populations-of-neurons-ngf-bdnf-and-nt-3-and-their-relevance-for-treatment-of-spinal-cord-injury
#18
REVIEW
Kathleen M Keefe, Imran S Sheikh, George M Smith
Neurotrophins are a family of proteins that regulate neuronal survival, synaptic function, and neurotransmitter release, and elicit the plasticity and growth of axons within the adult central and peripheral nervous system. Since the 1950s, these factors have been extensively studied in traumatic injury models. Here we review several members of the classical family of neurotrophins, the receptors they bind to, and their contribution to axonal regeneration and sprouting of sensory and motor pathways after spinal cord injury (SCI)...
March 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28264445/equol-a-dietary-daidzein-gut-metabolite-attenuates-microglial-activation-and-potentiates-neuroprotection-in-vitro
#19
Lalita Subedi, Eunhee Ji, Dongyun Shin, Jongsik Jin, Joo Hong Yeo, Sun Yeou Kim
Estrogen deficiency has been well characterized in inflammatory disorders including neuroinflammation. Daidzein, a dietary alternative phytoestrogen found in soy (Glycine max) as primary isoflavones, possess anti-inflammatory activity, but the effect of its active metabolite Equol (7-hydroxy-3-(4'-hydroxyphenyl)-chroman) has not been well established. In this study, we investigated the anti-neuroinflammatory and neuroprotective effect of Equol in vitro. To evaluate the potential effects of Equol, three major types of central nervous system (CNS) cells, including microglia (BV-2), astrocytes (C6), and neurons (N2a), were used...
February 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28257889/chronic-intermittent-ethanol-exposure-leads-to-alterations-in-brain-derived-neurotrophic-factor-within-the-frontal-cortex-and-impaired-behavioral-flexibility-in-both-adolescent-and-adult-rats
#20
Gina M Fernandez, Brandon J Lew, Lindsey C Vedder, Lisa M Savage
Chronic intermittent exposure to ethanol (EtOH; CIE) that produces binge-like levels of intoxication has been associated with age-dependent deficits in cognitive functioning. Male Sprague-Dawley rats were exposed to CIE (5g/kg, 25% EtOH, 13 intragastric gavages) beginning at three ages: early adolescence (postnatal day [PD] 28), mid-adolescence (PD35) and adulthood (PD72). In experiment 1, rats were behaviorally tested following CIE. Spatial memory was not affected by CIE, but adult CIE rats were impaired at acquiring a non-spatial discrimination task and subsequent reversal tasks...
April 21, 2017: Neuroscience
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