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Neurotrophin

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https://www.readbyqxmd.com/read/29778424/nrage-confers-poor-prognosis-and-promotes-proliferation-invasion-and-chemoresistance-in-gastric-cancer
#1
Xiaodi Jiang, Xiaofeng Jiang, Zhi Yang
Neurotrophin receptor-interacting melanoma antigen-encoding protein (NRAGE) is a type II melanoma-associated antigen that plays an essential role in various processes, including cell differentiation and apoptosis. NRAGE has been shown to act as a cancer-related protein, with complex and apparently contradictory functions in a variety of cancers. In the current study, we examined the expression of NRAGE protein in 169 gastric cancer samples. NRAGE upregulation was correlated with advanced TNM stage, local invasion, and poor survival...
May 17, 2018: Gene
https://www.readbyqxmd.com/read/29775986/effects-of-two-training-programs-on-transcriptional-levels-of-neurotrophins-and-glial-cells-population-in-hippocampus-of-experimental-multiple-sclerosis
#2
Maryam Naghibzadeh, Rouhollah Ranjbar, Mohammad Reza Tabandeh, Abdolhamid Habibi
The aim of the present study was to investigate the effects of high-intensity interval training (HIIT) versus low-intensity continuous training (LICT) on transcriptional levels of neurotrophic factors and oligodendrocyte/microglia cell loss in a cuprizone (CP) induced animal model of demyelination. Male C57BL/6 mice were assigned to six groups: control (C), cuprizone-induced demyelination (CP), interval training (IT), continuous training (CT), IT plus CP (ITCP), and CT plus CP (CTCP). Training programs on the treadmill were performed for four weeks, and then demyelination was induced by feeding mice a diet containing 0...
May 18, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29775875/the-reduced-level-of-growth-factors-in-an-animal-model-of-depression-is-accompanied-by-regulated-necrosis-in-the-frontal-cortex-but-not-in-the-hippocampus
#3
Mateusz Kucharczyk, Anna Kurek, Bartosz Pomierny, Jan Detka, Mariusz Papp, Katarzyna Tota, Bogusława Budziszewska
In the present study, we asked if the different types of stress alter neuronal plasticity markers distinctively in the frontal cortex (FCx) and in the hippocampus (Hp). To do so, we implemented various stress regimens to analyze changes evoked in these rat brain structures. We utilized several molecular techniques, including western blot, ELISA, quantitative RT-PCR, and various biochemical assays, to examine a range of proteins and subjected rats to behavioral tests to evaluate potential maladaptive alterations...
May 14, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29775570/rapid-non-classical-effects-of-steroids-on-the-membrane-receptor-dynamics-and-downstream-signaling-in-neurons
#4
REVIEW
Klaudia Barabás, Soma Godó, Ferenc Lengyel, Dávid Ernszt, József Pál, István M Ábrahám
Although rapid effects of steroid hormones on membrane receptors and intracellular signaling molecules have been extensively studied in neurons, we are only beginning to understand the molecular mechanisms behind these non-classical steroid actions. Single molecule tracking (SMT) studies on live cells demonstrated that surface trafficking of membrane receptors determines their ligand binding properties and downstream signaling events. Recent findings suggest that one of the underlying mechanisms of non-classical steroid actions is the alteration of receptor movements on the membrane surface...
May 15, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29762846/neurotrophin-3-improves-fracture-healing-in-rats
#5
X Li, D-C Sun, Y Li, X-Y Wu
OBJECTIVE: This study aimed at investigating the role of Neurotrophin-3 (NT-3) in the bone fracture healing of rats and to provide a reference for clinical treatment. MATERIALS AND METHODS: 40 Sprague-Dawley (SD) rats were randomly divided into control group and NT-3 group. The tibia fracture model was made in NT-3 group, and the tibia bone mineral density (BMD) was measured before and after the surgery. The biomechanics indexes were inspected after the surgery, including elasticity modulus, max load, and bending rigidity...
April 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29761734/functional-effects-of-trka-inhibition-on-system-x-c-mediated-glutamate-release-and-cancer-induced-bone-pain
#6
Tanya Miladinovic, Robert G Ungard, Katja Linher-Melville, Snezana Popovic, Gurmit Singh
Breast cancer cells release the signalling molecule glutamate via the system xC - antiporter, which is upregulated to exchange extracellular cystine for intracellular glutamate to protect against oxidative stress. Here, we demonstrate that this antiporter is functionally influenced by the actions of the neurotrophin nerve growth factor on its cognate receptor tyrosine kinase, TrkA, and that inhibiting this complex may reduce cancer-induced bone pain via its downstream actions on xCT, the functional subunit of system xC - ...
January 2018: Molecular Pain
https://www.readbyqxmd.com/read/29751848/differentiation-of-adipose-derived-stem-cells-into-schwann-cell-like-cells-through-intermittent-induction-potential-advantage-of-cellular-transient-memory-function
#7
Xun Sun, Yun Zhu, He-Yong Yin, Zhi-Yuan Guo, Feng Xu, Bo Xiao, Wen-Li Jiang, Wei-Min Guo, Hao-Ye Meng, Shi-Bi Lu, Yu Wang, Jiang Peng
BACKGROUND: Peripheral nerve injury (PNI) is a worldwide issue associated with severe social and economic burden. Autologous nerve grafting, the gold standard treatment for peripheral nerve defects, still has a number of technical limitations. Tissue engineering technology is a novel therapeutic strategy, and mesenchymal stromal cells (MSCs) are promising seed cells for nerve tissue engineering. However, the efficiency of traditional methods for inducing the differentiation of MSCs to Schwann cell-like cells (SCLCs) remains unsatisfactory...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29750782/hey1-and-p53-dependent-trkc-proapoptotic-activity-controls-neuroblastoma-growth
#8
Marie Ménard, Clélia Costechareyre, Gabriel Ichim, Jonathan Blachier, David Neves, Loraine Jarrosson-Wuilleme, Reinhard Depping, Jan Koster, Pierre Saintigny, Patrick Mehlen, Servane Tauszig-Delamasure
The neurotrophin-3 (NT-3) receptor tropomyosin receptor kinase C (TrkC/NTRK3) has been described as a dependence receptor and, as such, triggers apoptosis in the absence of its ligand NT-3. This proapoptotic activity has been proposed to confer a tumor suppressor activity to this classic tyrosine kinase receptor (RTK). By investigating interacting partners that might facilitate TrkC-induced cell death, we have identified the basic helix-loop-helix (bHLH) transcription factor Hey1 and importin-α3 (karyopherin alpha 4 [KPNA4]) as direct interactors of TrkC intracellular domain, and we show that Hey1 is required for TrkC-induced apoptosis...
May 11, 2018: PLoS Biology
https://www.readbyqxmd.com/read/29748862/association-of-dna-methylation-in-bdnf-with-escitalopram-treatment-response-in-depressed-chinese-han-patients
#9
Peipei Wang, Cuizhen Zhang, Qinyu Lv, Chenxi Bao, Hong Sun, Guo Ma, Yiru Fang, Zhenghui Yi, Weimin Cai
PURPOSE: The neurotrophin brain-derived neurotrophic factor (BDNF) has been found to be associated with both the pathophysiology of depression and antidepressants response. Gene expression differences were partly mediated by SNP, which might be identified as a predictor of antidepressant response. In the present study, we attempt to identify whether DNA methylation, another factor known to affect gene transcription, might also predict antidepressant response. METHODS: A total of 85 depressed Chinese Han patients were followed-up 8 weeks after initiating escitalopram treatment...
May 10, 2018: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29744249/the-effect-of-anaesthetic-techniques-on-maternal-and-cord-blood-brain-derived-neurotrophic-factor-levels
#10
Mehmet Aksoy, Ayşe Nur Aksoy, Ali Ahıskalıoğlu, İlker İnce, Esra Laloğlu, Ayşenur Dostbil, Mine Gürsaç Çelik
Objective: Brain-derived neurotrophic factor (BDNF), a member of neurotrophins, plays a critical role in neuronal tissue. In this study, the effects of spinal or general anaesthesia on cord and maternal peripheral blood BDNF and malondialdehyde (MDA) levels were investigated in patients undergoing elective caesarean section. Methods: Eighty patients with term pregnancy were included. General anaesthesia was induced with intravenous (IV) propofol 2 mg kg-1 in the general anaesthesia group (n=36)...
April 2018: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/29741791/the-trophic-effect-of-nerve-growth-factor-in-primary-cultures-of-rat-hippocampal-neurons-is-associated-to-an-anti-inflammatory-and-immunosuppressive-transcriptional-program
#11
Barbara Maino, Antonio G Spampinato, Cinzia Severini, Carla Petrella, Maria Teresa Ciotti, Velia D'Agata, Pietro Calissano, Sebastiano Cavallaro
Nerve growth factor, the prototype of a family of neurotrophins, elicits differentiation and survival of peripheral and central neuronal cells. Although its neural mechanisms have been studied extensively, relatively little is known about the transcriptional regulation governing its effects. We have previously observed that in primary cultures of rat hippocampal neurons treatment with nerve growth factor for 72 hr increases neurite outgrowth and cell survival. To obtain a comprehensive view of the underlying transcriptional program, we performed whole-genome expression analysis by microarray technology...
May 9, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29740907/enteric-glial-cell-activation-protects-enteric-neurons-from-damage-due-to-diabetes-in-part-via-the-promotion-of-neurotrophic-factor-release
#12
P Luo, D Liu, C Li, W-X He, C-L Zhang, M-J Chang
BACKGROUND: Diabetes can result in pathological changes to enteric nervous system. Our aim was to test the dynamic changes of enteric neurons and identify the role of enteric glial cells (EGCs) in regulating enteric neuron expression in diabetic rats. METHODS: A single injection of streptozotocin (STZ) was used to establish diabetic rats. Animals were randomly distributed into diabetic 1-, 4-, 8-, and 16-week groups, as well as age-matched control groups. The PGP9...
May 8, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29740322/adenosine-receptors-in-developing-and-adult-mouse-neuromuscular-junctions-and-functional-links-with-other-metabotropic-receptor-pathways
#13
Josep Tomàs, Neus Garcia, Maria A Lanuza, Manel M Santafé, Marta Tomàs, Laura Nadal, Erica Hurtado, Anna Simó-Ollé, Víctor Cilleros-Mañé, Laia Just-Borràs
In the last few years, we have studied the presence and involvement in synaptogenesis and mature transmitter release of the adenosine autoreceptors (AR) in the mammalian neuromuscular junction (NMJ). Here, we review and bring together the previously published data to emphasize the relevance of these receptors for developmental axonal competition, synaptic loss and mature NMJ functional modulation. However, in addition to AR, activity-dependent mediators originating from any of the three cells that make the synapse (nerve, muscle, and glial cells) cross the extracellular cleft to generate signals in target metabotropic receptors...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29731813/sevoflurane-induced-memory-impairment-in-the-postnatal-developing-mouse-brain
#14
Zhijun Lu, Jihui Sun, Yichun Xin, Ken Chen, Wen Ding, Yujia Wang
The aim of the present study was to confirm that sevoflurane induces memory impairment in the postnatal developing mouse brain and determine its mechanism of action. C57BL/6 mice 7 days old were randomly assigned into a 2.6% sevoflurane (n=68), a 1.3% sevoflurane (n=68) and a control (n=38) group. Blood gas analysis was performed to evaluate hypoxia and respiratory depression during anesthesia in 78 mice. Measurements for expression of caspase-3 by immunohistochemistry, cleavage of poly adenosine diphosphate-ribose polymerase (PARP) by western blotting, as well as levels of brain-derived neurotrophic factor (BDNF), tyrosine kinase receptor type 2 (Ntrk2), pro-BDNF, p75 neurotrophin receptor (p75NTR) and protein kinase B (PKB/Akt) by enzyme-linked immunosorbent assay were performed in the hippocampus of 12 mice from each group...
May 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29728025/-explore-compatibility-mechanism-of-xingnaojing-injection-in-treating-cerebral-infarction-based-on-network-pharmacology
#15
Fu-Jiang Song, Bin Fan, Jian Sun
This paper aimed to explore the molecular mechanism of Xingnaojing injection and its scientific connotation of compatibility mechanism from a new perspective on bioinformatics and network biology. Based on the analysis function of intergrative pharmacology platform V1.0, the compatibility mechanism of this prescription was investigated by constructing the herbs-compounds-targets network. Seven hundreds and ninety-five targets from the prescription were screened out, then 302 hub nodes were included in drug targets-disease targets network...
April 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29728023/-study-on-yueju-wan-for-different-diseases-with-same-treatment-based-on-integrative-pharmacology
#16
Wen Zhang, Shi-Huan Tang, Yi Zhang, De-Feng Li, Hong-Jun Yang, Yi Zhang, Fei-Fei Guo
The traditional Chinese medicine prescription Yueju Wan has the function of regulating qi-flowing for activating stagnancy and resolving food stagnation, which is now used for the treatment of depression and gastrointestinal related diseases. In this study, an integrative pharmacological method was adopted to predict the targets and pathways of Yueju Wan and explore its molecular mechanism for depression and gastrointestinal dysfunction with the same treatment. First, disease targets were collected from Human Phenotype Ontology database, 201 targets related to depression and 474 targets related to gastrointestinal dysfunction, including 95 common targets of these two...
April 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29728020/-molecular-mechanism-of-bupleuri-radix-and-scutellariae-radix-drug-pair-for-depression-based-on-integrative-pharmacology-platform-of-traditional-chinese-medicine
#17
Jian-Ting Wang, Shang Wang, Song-Lin Liu, Yan-Chun Wang, Jia-Geng Li, Yu Chen
Xiaochaihu decoction is a classic prescription of traditional Chinese medicine. Modern research has proved its anti-depression effect. However, its pharmacological mechanism for anti-depression effect is difficult to be unveiled because of the complexity of compound Chinese medicines. Bupleuri Radix and Scutellariae Radix is the core drug pair of Xiaochaihu decoction. In this research, Bupleuri Radix and Scutellariae Radix were analyzed by the integrative pharmacology platform to study its molecular mechanism for anti-depression...
April 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29726700/acute-exercise-induced-bdnf-trkb-signaling-is-intact-in-the-prefrontal-cortex-of-obese-glucose-intolerant-male-mice
#18
Bradley J Baranowski, Rebecca E K MacPherson
Obesity and glucose intolerance have been directly implicated in the pathology of Alzheimer's disease. It is thought that diet induced obesity causes a reduction in neuronal plasticity through a reduction in the neurotrophin, brain-derived neurotrophic factor (BDNF). Previous work has demonstrated that acute exercise in healthy lean animals increases BDNF-TrkB signaling in the brain. However, if this effect is intact in a state of obesity remains unknown. The purpose of this study is to determine the effects of a single bout of exercise on BDNF-TrkB signaling in the prefrontal cortex and hippocampus from obese glucose intolerant mice...
May 4, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29723636/mechanical-loading-of-intervertebral-disc-modulates-microglia-proliferation-activation-and-chemotaxis
#19
Stefania Elena Navone, Marianna Peroglio, Laura Guarnaccia, Matteo Beretta, Sibylle Grad, Moira Paroni, Chiara Cordiglieri, Marco Locatelli, Mauro Pluderi, Paolo Rampini, Rolando Campanella, Mauro Alini, Giovanni Marfia
OBJECTIVE: The aim of the study is to assess the effects of the neuroinflammatory microenvironment of a mechanically-induced degenerating IVD on neuroinflammatory like cells such as microglia, in order to comprehend the role of microglial cells in degenerative disc disease. METHODS: Bovine caudal IVDs were kept in culture in an ex vivo bioreactor under high frequency loading and limited nutrition or in free swelling conditions as control samples. Conditioned media (CM) were collected, analysed for cytokine and neurotrophin content and applied to microglial cells for neuroinflammatory activation assessment...
April 30, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29721977/brain-derived-neurotrophic-factor-as-a-treatment-option-for-retinal-degeneration
#20
Conor Daly, Rebecca Ward, Alison L Reynolds, Orla Galvin, Ross F Collery, Breandán N Kennedy
This review discusses the therapeutic potential of brain-derived neurotrophic factor (BDNF) for retinal degeneration. BDNF, nerve growth factor (NGF), neurotrophin 3 (NT-3) and NT-4/NT-5 belong to the neurotrophin family. These neuronal modulators activate a common receptor and a specific tropomyosin-related kinase (Trk) receptor. BDNF was identified as a photoreceptor protectant in models of retinal degeneration as early as 1992. However, development of effective therapeutics that exploit this pathway has been difficult due to challenges in sustaining therapeutic levels in the retina...
2018: Advances in Experimental Medicine and Biology
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