keyword
MENU ▼
Read by QxMD icon Read
search

Trk

keyword
https://www.readbyqxmd.com/read/28433076/identification-of-ntrk3-fusions-in-childhood-melanocytic-neoplasms
#1
Lu Wang, Klaus J Busam, Ryma Benayed, Robert Cimera, Jiajing Wang, Ryan Denley, Mamta Rao, Ruth Aryeequaye, Kerry Mullaney, Long Cao, Marc Ladanyi, Meera Hameed
Spitzoid neoplasms are a distinct group of melanocytic tumors. Genetically, they lack mutations in common melanoma-associated oncogenes. Recent studies have shown that spitzoid tumors may contain a variety of kinase fusions, including ROS1, NTRK1, ALK, BRAF, and RET fusions. We report herein the discovery of recurrent NTRK3 gene rearrangements in childhood melanocytic neoplasms with spitzoid and/or atypical features, based on genome-wide copy number analysis by single-nucleotide polymorphism array, which showed intragenic copy number changes in NTRK3...
May 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28398601/antidepressant-imipramine-protects-bupivacaine-induced-neurotoxicity-in-dorsal-root-ganglion-neurons-through-co-activation-of-trka-and-trkb
#2
Jianrong Guo, Huan Wang, Qiang Tao, Shiyu Sun, Li Liu, Jianping Zhang, Dawei Yang
PURPOSE: In our work, we used an in vitro culture model to investigate whether antidepressant imipramine (Ip) may protect bupivacaine (Bv)-induced neurotoxicity in mouse dorsal root ganglion (DRG). METHODS: Adult mouse DRG was treated with 5 mM Bv in vitro to induce neurotoxicity. DRG was then pre-treated with Ip, prior to Bv, to examine its effects on protecting Bv-induced DRG apoptosis and neurite degeneration. Ip-induced dynamic changes in Trk receptors, including TrkA/B/C and phosphor (p-)TrkA/B/C, were examined by qPCR and western blot...
April 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28373203/three-tier-regulation-of-cell-number-plasticity-by-neurotrophins-and-tolls-in-drosophila
#3
Istvan Foldi, Niki Anthoney, Neale Harrison, Monique Gangloff, Brett Verstak, Mohanakarthik Ponnadai Nallasivan, Samaher AlAhmed, Bangfu Zhu, Mark Phizacklea, Maria Losada-Perez, Marta Moreira, Nicholas J Gay, Alicia Hidalgo
Cell number plasticity is coupled to circuitry in the nervous system, adjusting cell mass to functional requirements. In mammals, this is achieved by neurotrophin (NT) ligands, which promote cell survival via their Trk and p75(NTR) receptors and cell death via p75(NTR) and Sortilin. Drosophila NTs (DNTs) bind Toll receptors instead to promote neuronal survival, but whether they can also regulate cell death is unknown. In this study, we show that DNTs and Tolls can switch from promoting cell survival to death in the central nervous system (CNS) via a three-tier mechanism...
April 3, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28373196/development-of-a-novel-site-specific-pegylated-interferon-beta-for-antiviral-therapy-for-chronic-hepatitis-b
#4
Masataka Tsuge, Takuro Uchida, Nobuhiko Hiraga, Hiromi Kan, Grace Naswa Makokha, Hiromi Abe-Chayama, Daiki Miki, Michio Imamura, Hidenori Ochi, C Nelson Hayes, Rieko Shimozono, Tomokatsu Iwamura, Hideki Narumi, Tomohiko Suzuki, Mie Kainoh, Tadatsugu Taniguchi, Kazuaki Chayama
Although nucleot(s)ide analogues and pegylated-interferon-α2a (PEG-IFNα2a) can suppress hepatitis B virus (HBV) replication, it is difficult to achieve complete HBV elimination from hepatocytes. A novel site-specific pegylated recombinant human IFNβ (TRK-560) was recently developed. In the present study, we evaluated the antiviral effects of TRK-560 on HBV replication in vitro and in vivoIn vitro and in vivo HBV replication models were treated with antivirals including TRK-560, and changes in HBV markers were evaluated...
April 3, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28370021/roles-of-neurotrophins-in-skeletal-tissue-formation-and-healing
#5
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/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/28351971/trk-receptor-signaling-and-sensory-neuron-fate-are-perturbed-in-human-neuropathy-caused-by-gars-mutations
#7
James N Sleigh, John M Dawes, Steven J West, Na Wei, Emily L Spaulding, Adriana Gómez-Martín, Qian Zhang, Robert W Burgess, M Zameel Cader, Kevin Talbot, Xiang-Lei Yang, David L Bennett, Giampietro Schiavo
Charcot-Marie-Tooth disease type 2D (CMT2D) is a peripheral nerve disorder caused by dominant, toxic, gain-of-function mutations in the widely expressed, housekeeping gene, GARS The mechanisms underlying selective nerve pathology in CMT2D remain unresolved, as does the cause of the mild-to-moderate sensory involvement that distinguishes CMT2D from the allelic disorder distal spinal muscular atrophy type V. To elucidate the mechanism responsible for the underlying afferent nerve pathology, we examined the sensory nervous system of CMT2D mice...
March 28, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28347639/neurite-outgrowth-in-cultured-mouse-pelvic-ganglia-effects-of-neurotrophins-and-bladder-tissue
#8
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/28326307/p75-neurotrophin-receptor-in-the-skin-beyond-its-neurotrophic-function
#9
REVIEW
Carlo Pincelli
p75 neurotrophin receptor (p75(NTR)), also known as CD271, is the low-affinity receptor that, together with the tyrosine kinase receptor tropomyosin-receptor kinase (Trk), mediate neurotrophin (NT) functions. Beside their classic role in skin innervation, NT and their receptors constitute a complex cutaneous network associated with a number of autocrine and paracrine activities. In this context, the role of p75(NTR) is becoming more and more important. This review will focus on the intriguing functions of p75(NTR) in healthy and diseased skin...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28319380/evaluation-and-characterization-of-trk-kinase-inhibitors-for-the-treatment-of-pain-reliable-binding-affinity-predictions-from-theory-and-computation
#10
Shunzhou Wan, Agastya P Bhati, Sarah Skerratt, Kiyoyuki Omoto, Veerabahu Shanmugasundaram, Sharan K Bagal, Peter V Coveney
Optimization of ligand binding affinity to the target protein of interest is a primary objective in small-molecule drug discovery. Until now, the prediction of binding affinities by computational methods has not been widely applied in the drug discovery process, mainly because of its lack of accuracy and reproducibility as well as the long turnaround times required to obtain results. Herein we report on a collaborative study that compares tropomyosin receptor kinase A (TrkA) binding affinity predictions using two recently formulated fast computational approaches, namely, Enhanced Sampling of Molecular dynamics with Approximation of Continuum Solvent (ESMACS) and Thermodynamic Integration with Enhanced Sampling (TIES), to experimentally derived TrkA binding affinities for a set of Pfizer pan-Trk compounds...
April 24, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28315978/the-hallucinogen-2-5-dimethoxy-4-iodoamphetamine-hydrochloride-activates-neurotrophin-receptors-in-a-neuronal-cell-line-and-promotes-neurites-extension
#11
Zoya Marinova, Susanne Walitza, Edna Grünblatt
Decreased neurotrophic factors expression and neurotrophin receptors signalling have repeatedly been reported in association with stress, depression, and neurodegenerative disorders. We have previously identified the hallucinogen 2,5-dimethoxy-4-iodoamphetamine hydrochloride (DOI) as protective against trophic deprivation-induced cytotoxicity in human neuroblastoma SK-N-SH cells and established the dependence of this effect on the 5-HT2A receptor, tyrosine kinases activity, and the extracellular signal-regulated kinase pathway...
March 18, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28280935/crypt-cell-markers-in-the-olfactory-organ-of-poecilia-reticulata-analysis-and-comparison-with-the-fish-model-danio-rerio
#12
Simone Bettini, Liliana Milani, Maurizio Lazzari, Maria Gabriella Maurizii, Valeria Franceschini
Olfactory crypt neurons have been observed in several bony fishes and chondrichtyans. Although their morphology is uniform in all fish, very few is known about their antigenic properties, usually studied in zebrafish, but quite overlooked in other species. We tested in Poecilia reticulata (guppy) the two antibodies recognized to mark zebrafish crypt cells: while anti-S100 showed an immunohistochemical pattern comparable to what reported in zebrafish, anti-TrkA gave no signal. Western blot analysis revealed that S100-antiserum bound an antigen of expected weight, probably belonging to the S100 family...
March 9, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28270164/tropomyosin-receptor-antagonism-in-cylindromatosis-trac-an-early-phase-trial-of-a-topical-tropomyosin-kinase-inhibitor-as-a-treatment-for-inherited-cyld-defective-skin-tumours-study-protocol-for-a-randomised-controlled-trial
#13
Amy Cranston, Deborah D Stocken, Elaine Stamp, David Roblin, Julia Hamlin, James Langtry, Ruth Plummer, Alan Ashworth, John Burn, Neil Rajan
BACKGROUND: Patients with germline mutations in a tumour suppressor gene called CYLD develop multiple, disfiguring, hair follicle tumours on the head and neck. The prognosis is poor, with up to one in four mutation carriers requiring complete surgical removal of the scalp. There are no effective medical alternatives to treat this condition. Whole genome molecular profiling experiments led to the discovery of an attractive molecular target in these skin tumour cells, named tropomyosin receptor kinase (TRK), upon which these cells demonstrate an oncogenic dependency in preclinical studies...
March 7, 2017: Trials
https://www.readbyqxmd.com/read/28270021/tropomyosin-receptor-kinase-inhibitors-an-updated-patent-review-for-2010-2016-part-ii
#14
Justin J Bailey, Ralf Schirrmacher, Kristen Farrell, Vadim Bernard-Gauthier
TrkA/B/C receptor activation supports growth, survival, and differentiation of discrete neuronal populations during development, adult life, and ageing but also plays numerous roles in human disease onset and progression. Trk-specific inhibitors have therapeutic applications in cancer and pain and thus constitute a growing area of interest in oncology and neurology. There has been substantial growth in the number of structural classes of Trk inhibitors and the number of industrial entrants to the Trk inhibitor field over the past six years...
March 8, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28270010/tropomyosin-receptor-kinase-inhibitors-an-updated-patent-review-for-2010-2016-part-i
#15
Justin J Bailey, Ralf Schirrmacher, Kristen Farrell, Vadim Bernard-Gauthier
Tropomyosin receptor kinases (TrkA/B/C) play crucial roles in the development and maintenance of the nervous system, and aberrant expression of Trk has been implicated in neurological disorders as well as neural and non-neural neoplasms. Patent activity encompassing Trk inhibitors has grown substantially over the last 6 years, recognized by a rise in the number of pharmaceutical entrants to the field and the escalation of novel inhibitor chemotypes. Area covered: In Part I of this two part review, a biological and structural overview of Trk is provided in the context of Trk as a therapeutic target for cancer and pain, followed by the report of recent patent literature claiming small molecule inhibitors of Trk family kinases or which describe inhibitors developed for other kinase targets but include noteworthy Trk inhibition/application...
March 8, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28266869/pig-induced-pluripotent-stem-cell-derived-neural-rosettes-parallel-human-differentiation-into-sensory-neural-subtypes
#16
Robin L Webb, Amalia Gallegos-Cárdenas, Colette N Miller, Nicholas J Solomotis, Hong-Xiang Liu, Franklin D West, Steven L Stice
The pig is the large animal model of choice for study of nerve regeneration and wound repair. Availability of porcine sensory neural cells would conceptually allow for analogous cell-based peripheral nerve regeneration in porcine injuries of similar severity and size to those found in humans. After recently reporting that porcine (or pig) induced pluripotent stem cells (piPSCs) differentiate into neural rosette (NR) structures similar to human NRs, here we demonstrate that pig NR cells could differentiate into neural crest cells and other peripheral nervous system-relevant cell types...
April 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28266720/effects-of-p75ntr-deficiency-on-cholinergic-innervation-of-the-amygdala-and-anxiety-like-behavior
#17
Ruben Busch, Marian Baldus, Miriam A Vogt, Stefan M Berger, Dusan Bartsch, Peter Gass, Oliver von Bohlen Und Halbach
The p75 neurotrophin receptor (p75NTR) is a low-affinity receptor that is capable of binding neurotrophins. Two different p75NTR knockout mouse lines are available either with a deletion in Exon III (p75NTR(E)(x)(III)(-/-) ) or in Exon IV (p75NTR(E)(x)(IV)(-/-) ). In p75NTR(E)(x)(III) knockout mice, only the full-length p75NTR is deleted, whereas in p75NTR(E)(x)(IV) knockout mice, the full-length as well as the truncated isoform of the receptor is deleted. Deletion of p75NTR has been shown to affect, among others, the septohippocampal cholinergic innervation pattern and neuronal plasticity within the hippocampus...
March 7, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28257759/blockade-of-trkb-receptors-in-the-nucleus-accumbens-prior-to-heterotypic-stress-alters-corticotropin-releasing-hormone-crh-vesicular-glutamate-transporter-2-vglut2-and-glucocorticoid-receptor-gr-within-the-mesolimbic-pathway
#18
Idu Azogu, Helene Plamondon
Inhibition of stress-induced elevations in brain-derived neurotrophic factor (BDNF) or its primary receptor tyrosine-related kinase B (TrkB) within the reward pathway may modulate vulnerability to anxiety and mood disorders. The current study examined the role of BDNF/TrkB signaling on biochemistry and behavior under basal conditions and following exposure to a 10-day heterotypic stress paradigm in male rats. Effects of intra-accumbal administration of TrkB antagonist ANA-12 (0.25μg/0.5μl/min) on anxiety, and expression of Trk-B, corticotropin-releasing hormone (CRH), vesicular glutamate transporter 2 (vGluT2) and glucocorticoid receptor (GR) within the mesolimbic pathway were determined...
March 14, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28218045/the-significance-of-trk-receptors-in-pancreatic-cancer
#19
Matthew D Johnson, Brandon Stone, Bryan J Thibodeau, Andrew M Baschnagel, Sandra Galoforo, Laura E Fortier, Billie Ketelsen, Samreen Ahmed, Zakiya Kelley, Alaa Hana, Thomas G Wilson, John M Robertson, Robert P Jury, George D Wilson
This study investigated the Trk receptor family as a therapeutic target in pancreatic ductal adenocarcinoma and assessed their prognostic significance. Global gene expression analysis was investigated in prospectively collected pancreatic ductal adenocarcinomas that had either undergone neoadjuvant chemoradiation or were treated by surgery. PANC-1 and MIA-PaCa-2 cell lines were investigated to establish whether fractionated radiation altered expression of four neuroendocrine genes and whether this resulted in subsequent changes in radiosensitivity...
February 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28215304/neurotrophins-and-migraine
#20
L B Martins, A L Teixeira, R B Domingues
Neurotrophins (NTs) have been implicated in generation and modulation of nociceptive pathways. Change in NTs levels is associated with painful conditions and neurological diseases such as migraine. Currently, it is generally recognized that migraine headaches result from the activation and sensitization of trigeminal sensory afferent fibers leading to neuropeptides release such as calcitonin gene-related peptide (CGRP) and substance P (SP). This triggers an inflammatory cascade causing a neurogenic inflammation...
2017: Vitamins and Hormones
keyword
keyword
23288
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"