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https://www.readbyqxmd.com/read/27863461/pooled-genome-wide-association-detects-association-upstream-of-fcrl3-with-graves-disease
#1
Jwu Jin Khong, Kathryn P Burdon, Yi Lu, Kate Laurie, Lefta Leonardos, Paul N Baird, Srujana Sahebjada, John P Walsh, Adam Gajdatsy, Peter R Ebeling, Peter Shane Hamblin, Rosemary Wong, Simon P Forehan, Spiros Fourlanos, Anthony P Roberts, Matthew Doogue, Dinesh Selva, Grant W Montgomery, Stuart Macgregor, Jamie E Craig
BACKGROUND: Graves' disease is an autoimmune thyroid disease of complex inheritance. Multiple genetic susceptibility loci are thought to be involved in Graves' disease and it is therefore likely that these can be identified by genome wide association studies. This study aimed to determine if a genome wide association study, using a pooling methodology, could detect genomic loci associated with Graves' disease. RESULTS: Nineteen of the top ranking single nucleotide polymorphisms including HLA-DQA1 and C6orf10, were clustered within the Major Histo-compatibility Complex region on chromosome 6p21, with rs1613056 reaching genome wide significance (p = 5 × 10(-8))...
November 18, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27857231/quantitative-proteomic-analysis-of-age-related-subventricular-zone-proteins-associated-with-neurodegenerative-disease
#2
Xianli Wang, Chuanming Dong, Lixin Sun, Liang Zhu, Chenxi Sun, Rongjie Ma, Ke Ning, Bing Lu, Jinfu Zhang, Jun Xu
Aging is characterized by a progressive decline in the function of adult tissues which can lead to neurodegenerative disorders. However, little is known about the correlation between protein changes in the subventricular zone (SVZ) and neurodegenerative diseases with age. In the present study, neural stem cells (NSCs) were derived from the SVZ on postnatal 7 d, 1 m, and 12 m-old mice. With age, NSCs exhibited increased SA-β-gal activity and decreased proliferation and pool size in the SVZ zone, and were associated with elevated inflammatory chemokines and cytokines...
November 18, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27801893/the-dpysl2-gene-connects-mtor-and-schizophrenia
#3
X Pham, G Song, S Lao, L Goff, H Zhu, D Valle, D Avramopoulos
We previously reported a schizophrenia-associated polymorphic CT di-nucleotide repeat (DNR) at the 5'-untranslated repeat (UTR) of DPYSL2, which responds to mammalian target of Rapamycin (mTOR) signaling with allelic differences in reporter assays. Now using microarray analysis, we show that the DNR alleles interact differentially with specific proteins, including the mTOR-related protein HuD/ELAVL4. We confirm the differential binding to HuD and other known mTOR effectors by electrophoretic mobility shift assays...
November 1, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27763719/stable-isotope-metabolic-labeling-suggests-differential-turnover-of-the-dpysl-protein-family
#4
Christoph W Turck, Christian Webhofer, Markus Nussbaumer, Larysa Teplytska, Alon Chen, Giuseppina Maccarrone, Michaela D Filiou
PURPOSE: In this work, we discuss how in vivo (15) N metabolic labeling in combination with MS simultaneously provides information on protein expression and protein turnover. EXPERIMENTAL DESIGN: We metabolically labeled mice with the stable nitrogen isotope (15) N using a (15) N-enriched diet and analyzed unlabeled ((14) N) versus (15) N-labeled brain tissue with LC-MS/MS. We then compared the (14) N versus (15) N peptide isotopologue clusters of (14) N and (15) N-labeled dihydropyrimidinase-related (DPYSL) proteins...
October 20, 2016: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/27467289/native-dige-proteomic-analysis-of-mitochondria-from-substantia-nigra-and-striatum-during-neuronal-degeneration-and-its-compensation-in-an-animal-model-of-early-parkinson-s-disease
#5
Katarzyna Kuter, Manuela Kratochwil, Sven-Hendric Marx, Sonja Hartwig, Stephan Lehr, Michiru D Sugawa, Norbert A Dencher
Cause of Parkinson's disease (PD) is still not understood. Motor symptoms are not observed at early stages of disease due to compensatory processes. Dysfunction of mitochondria was indicated already at preclinical PD. Selective toxin 6-OHDA was applied to kill dopaminergic neurons in substantia nigra and disturb neuronal transmission in striatum. Early phase of active degeneration and later stage, when surviving cells adapted to function normally, were analysed. 2D BN/SDS difference gel electrophoresis (DIGE) of mitochondrial proteome enabled to point out crucial processes involved at both time-points in dopaminergic structures...
December 2016: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/27456940/underexpression-of-hoxa11-is-associated-with-treatment-resistance-and-poor-prognosis-in-glioblastoma
#6
Young-Bem Se, Seung Hyun Kim, Ji Young Kim, Ja Eun Kim, Yun-Sik Dho, Jin Wook Kim, Yong Hwy Kim, Hyun Goo Woo, Se-Hyuk Kim, Shin-Hyuk Kang, Hak Jae Kim, Tae Min Kim, Soon-Tae Lee, Seung Hong Choi, Sung-Hye Park, Il Han Kim, Dong Gyu Kim, Chul-Kee Park
Purpose: Homeobox (HOX) genes are essential developmental regulators that should normally be in the silenced state in an adult brain. The aberrant expression of HOX genes has been associated with the prognosis of many cancer types, including glioblastoma (GBM). This study examined the identity and role of HOX genes affecting GBM prognosis and treatment resistance. Materials and Methods: The full series of HOX genes of 5 pairs of initial and recurrent human GBM samples were screened by microarray analysis to determine the most plausible candidate responsible for GBM prognosis...
July 19, 2016: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/27084846/lung-tissue-proteomics-identifies-elevated-transglutaminase-2-levels-in-stable-chronic-obstructive-pulmonary-disease
#7
Steffen Ohlmeier, Pentti Nieminen, Jing Gao, Tinja Kanerva, Mikko Rönty, Tuula Toljamo, Ulrich Bergmann, Witold Mazur, Ville Pulkkinen
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease characterized by irreversible airflow limitation. Cigarette smoking represents the main risk factor, but the specific mechanisms of COPD are not completely understood. Our aim was to identify COPD-specific proteomic changes involved in disease onset and severity. A comparative proteomic analysis of 51 lung tissues from nonsmokers, smokers, smokers with mild to moderate (stage I-II) COPD, severe to very severe COPD (stage III-IV), and patients with α-1-antitrypsin deficiency (AATD) and idiopathic pulmonary fibrosis (IPF) was performed by cysteine-specific two-dimensional difference gel electrophoresis (2D-DIGE) coupled with mass spectrometry...
June 1, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/26899441/anti-depressant-effects-of-gastrodia-elata-blume-and-its-compounds-gastrodin-and-4-hydroxybenzyl-alcohol-via-the-monoaminergic-system-and-neuronal-cytoskeletal-remodeling
#8
Wei-Cheng Chen, Yi-Syuan Lai, Shih-Hang Lin, Kuan-Hung Lu, Yu-En Lin, Suraphan Panyod, Chi-Tang Ho, Lee-Yan Sheen
ETHNOPHARMACOLOGY RELEVANCE: Gastrodia elata Blume is a highly valuable traditional Chinese medicine used in the treatment of depression. However, compounds with antidepressant effects in water extracts of G. elata Bl. (WGE) have not been identified. The aims of this study were to determine the major antidepressant compound in WGE and to evaluate the antidepressant effects of WGE and its active compounds which involved the monoaminergic system and neuronal cytoskeletal remodeling. MATERIALS AND METHODS: Gastrodin (GAS) and 4-hydroxybenzyl alcohol (HBA) in WGE, were analyzed with high-performance liquid chromatography (HPLC)-ultraviolet detection...
April 22, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/25961807/proteomic-validation-of-transcript-isoforms-including-those-assembled-from-rna-seq-data
#9
Aidan P Tay, Chi Nam Ignatius Pang, Natalie A Twine, Gene Hart-Smith, Linda Harkness, Moustapha Kassem, Marc R Wilkins
Human proteome analysis now requires an understanding of protein isoforms. We recently published the PG Nexus pipeline, which facilitates high confidence validation of exons and splice junctions by integrating genomics and proteomics data. Here we comprehensively explore how RNA-seq transcriptomics data, and proteomic analysis of the same sample, can identify protein isoforms. RNA-seq data from human mesenchymal (hMSC) stem cells were analyzed with our new TranscriptCoder tool to generate a database of protein isoform sequences...
September 4, 2015: Journal of Proteome Research
https://www.readbyqxmd.com/read/25921334/the-protein-interactome-of-collapsin-response-mediator-protein-2-crmp2-dpysl2-reveals-novel-partner-proteins-in-brain-tissue
#10
REVIEW
Daniel Martins-de-Souza, Juliana S Cassoli, Juliana M Nascimento, Kenneth Hensley, Paul C Guest, Andres M Pinzon-Velasco, Christoph W Turck
PURPOSE: Collapsin response mediator protein-2 (CRMP2) is a CNS protein involved in neuronal development, axonal and neuronal growth, cell migration, and protein trafficking. Recent studies have linked perturbations in CRMP2 function to neurodegenerative disorders such as Alzheimer's disease, neuropathic pain, and Batten disease, and to psychiatric disorders such as schizophrenia. Like most proteins, CRMP2 functions though interactions with a molecular network of proteins and other molecules...
October 2015: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/25863174/identification-of-novel-phosphatidic-acid-binding-proteins-in-the-rat-brain
#11
ChiHu Park, Du-Seock Kang, Geon-Hoon Shin, Jeongkon Seo, Hyein Kim, Pann-Ghill Suh, Chang-Dae Bae, Joo-Ho Shin
Phosphatidic acid (PA) is an abundant negatively-charged phospholipid and has long been considered to be an important signaling molecule in diverse cellular events. Thus, the identification of proteins that specifically interact with PA is of considerable interest to understand the regulatory roles of PA. Herein, lipid-affinity purification and mass spectrometric analysis reveals 43 proteins, 19 known and 24 novel, as PA-binding proteins. A lipid-protein overlay assay confirmed that GDI1, PACSIN1, and DPYSL2 interact with not only with PA but also with other phospholipids...
May 19, 2015: Neuroscience Letters
https://www.readbyqxmd.com/read/25847191/changes-in-dpysl2-expression-are-associated-with-prenatally-stressed-rat-offspring-and-susceptibility-to-schizophrenia-in-humans
#12
Hwayoung Lee, Jaesoon Joo, Seong-Su Nah, Jong Woo Kim, Hyung-Ki Kim, Jun-Tack Kwon, Hwa-Young Lee, Young Ock Kim, Hak-Jae Kim
Exposure to stress during critical periods of fetal brain development is an environmental risk factor for the development of schizophrenia in adult offspring. In the present study, a repeated-variable stress paradigm was applied to pregnant rats during the last week of gestation, which is analogous to the second trimester of brain development in humans. Behavioral and proteomic analyses were conducted in prenatally-stressed (PNS) adult offspring and non-stressed (NS) adult controls. In the behavioral tests, grooming behavior in the social interaction test, line-crossing behavior in the open field test, and swimming behavior in the forced swimming test were decreased in the PNS group...
June 2015: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/25416705/functional-variants-in-dpysl2-sequence-increase-risk-of-schizophrenia-and-suggest-a-link-to-mtor-signaling
#13
Yaping Liu, Xuan Pham, Lilei Zhang, Pei-Lung Chen, Grzegorz Burzynski, David M McGaughey, Shan He, John A McGrath, Paula Wolyniec, Margaret D Fallin, Megan S Pierce, Andrew S McCallion, Ann E Pulver, Dimitrios Avramopoulos, David Valle
Numerous linkage and association studies by our group and others have implicated DPYSL2 at 8p21.2 in schizophrenia. Here we explore DPYSL2 for functional variation that underlies these associations. We sequenced all 14 exons of DPYSL2 as well as 27 conserved noncoding regions at the locus in 137 cases and 151 controls. We identified 120 variants, eight of which we genotyped in an additional 729 cases and 1542 controls. Several were significantly associated with schizophrenia, including a three single-nucleotide polymorphism (SNP) haplotype in the proximal promoter, two SNPs in intron 1, and a polymorphic dinucleotide repeat in the 5'-untranslated region that alters sequences predicted to be involved in translational regulation by mammalian target of rapamycin signaling...
January 2014: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/24879061/neuroproteome-changes-after-ischemia-reperfusion-injury-and-tissue-plasminogen-activator-administration-in-rats-a-quantitative-itraq-proteomics-study
#14
Zamir Merali, Meah MingYang Gao, Tim Bowes, Jian Chen, Kenneth Evans, Andrea Kassner
The thrombolytic, recombinant tissue plasminogen activator (rt-PA) is the only approved therapy for acute ischemic stroke (AIS). When administered after AIS, rt-PA has many adverse pleiotropic actions, which are currently poorly understood. The identification of proteins showing differential expression after rt-PA administration may provide insight into these pleiotropic actions. In this study we used a 2D-LC MS/MS iTRAQ proteomic analysis, western blotting, and pathway analysis to analyze changes in protein expression 24-hours after rt-PA administration in the cortical brain tissue of 36 rats that underwent a sham or transient middle cerebral artery occlusion surgery...
2014: PloS One
https://www.readbyqxmd.com/read/24548049/altered-brain-protein-expression-profiles-are-associated-with-molecular-neurological-dysfunction-in-the-pku-mouse-model
#15
Esther Imperlini, Stefania Orrù, Claudia Corbo, Aurora Daniele, Francesco Salvatore
Phenylketonuria (PKU), if not detected and treated in newborns, causes severe neurological dysfunction and cognitive and behavioral deficiencies. Despite the biochemical characterization of PKU, the molecular mechanisms underlying PKU-associated brain dysfunction remain poorly understood. The aim of this study was to gain insights into the pathogenesis of this neurological damage by analyzing protein expression profiles in brain tissue of Black and Tan BRachyury-PahEnu2 mice (a mouse model of PKU). We compared the cerebral protein expression of homozygous PKU mice with that of their heterozygous counterparts using two-dimensional difference gel electrophoresis analysis, and identified 21 differentially expressed proteins, four of which were over-expressed and 17 under-expressed...
June 2014: Journal of Neurochemistry
https://www.readbyqxmd.com/read/24133216/identification-of-a-dithiol-disulfide-switch-in-collapsin-response-mediator-protein-2-crmp2-that-is-toggled-in-a-model-of-neuronal-differentiation
#16
Manuela Gellert, Simone Venz, Jessica Mitlöhner, Catherine Cott, Eva-Maria Hanschmann, Christopher Horst Lillig
Vertebrate-specific glutaredoxin 2 (Grx2) is expressed in at least two isoforms, mitochondrial Grx2a and cytosolic Grx2c. We have previously shown that cytosolic Grx2 is essential for embryonic development of the brain. In particular, we identified collapsin response mediator protein 2 (CRMP2/DPYSL2), a mediator of the semaphorin-plexin signaling pathway, as redox-regulated target of Grx2c and demonstrated that this regulation is required for normal axonal outgrowth. In this study, we demonstrate the molecular mechanism of this regulation, a specific and reversible intermolecular Cys-504-Cys-504 dithiol-disulfide switch in homotetrameric CRMP2...
December 6, 2013: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/24011394/dihydropyrimidinase-like-protein-3-expression-is-negatively-regulated-by-mycn-and-associated-with-clinical-outcome-in-neuroblastoma
#17
Fei Tan, Reema Wahdan-Alaswad, Shuang Yan, Carol J Thiele, Zhijie Li
Dihydropyrimidinase-like proteins (DPYSLs) are a family of proteins developmentally regulated during maturation of the nervous system. Recently, members of the DPYSL family have been reported to be involved in cancer with low expression of DPYSL1 correlating with poor clinical outcomes in non-small cell lung cancer and functioning as a metastasis suppressor. Neuroblastoma (NB) is a tumor derived from precursor cells of the sympathetic nervous system and is the most common solid tumor in childhood. So far the biological functions of DPYSLs in NB remain elusive...
December 2013: Cancer Science
https://www.readbyqxmd.com/read/23929741/phosphorylation-of-dpsyl2-crmp2-and-dpsyl3-crmp4-is-required-for-positioning-of-caudal-primary-motor-neurons-in-the-zebrafish-spinal-cord
#18
Rii Morimura, Keisuke Nozawa, Hideomi Tanaka, Toshio Ohshima
Dpysls (CRMPs) that were initially identified as mediator proteins of Semaphorin3a (Sema3a) signaling are involved in neuronal polarity and axon elongation in cultured neurons. Previous studies have shown that knockdown of neuropilin1a, one of the sema3a receptors, exhibited ectopic primary motor neurons (PMNs) outside of the spinal cord in zebrafish. However, downstream molecules of sema3a signaling involved in the positioning of motor neurons are largely unknown. Here, we addressed the role of Dpysl2 (CRMP2) and Dpysl3 (CRMP4) in the positioning of PMNs in the zebrafish spinal cord...
December 2013: Developmental Neurobiology
https://www.readbyqxmd.com/read/23846846/association-between-dpysl2-gene-polymorphisms-and-alcohol-dependence-in-caucasian-samples
#19
Amanda Taylor, Ke-Sheng Wang
The DPYSL2 gene at 8p22-p21 is expressed widely in neuronal tissues and has been implicated in multiple psychiatric disorders such as Alzheimer's disease and schizophrenia. We therefore hypothesized that DPYSL2 gene polymorphisms may play a role in alcohol dependence (AD). We investigated the genetic associations of 57 single-nucleotide polymorphisms (SNPs) within the DPYSL2 gene with AD using two Caucasian samples-the Collaborative Study on the Genetics of Alcoholism (COGA) sample (660 AD cases and 400 controls), and the Study of Addiction: Genetics and Environment (SAGE) sample (623 cases and 1,016 controls)...
January 2014: Journal of Neural Transmission
https://www.readbyqxmd.com/read/23825043/lanthionine-ketimine-ethyl-ester-partially-rescues-neurodevelopmental-defects-in-unc-33-dpysl2-crmp2-mutants
#20
Caleb Hubbard, Erica Benda, Tyler Hardin, Taylor Baxter, Elizabeth St John, Sean O'Brien, Kenneth Hensley, Andrea M Holgado
Lanthionine ketimine (LK) is a natural sulfur amino acid metabolite with potent neurotrophic activity. Proteomics indicate that LK interacts with collapsin response mediator protein-2 (CRMP2/DPYSL2/UNC-33), a brain-enriched protein that was shown to regulate cytoskeletal remodeling, neuronal morphology, and synaptic function. To elucidate further the molecular interplay and biological action of LK and UNC-33, we began examining the nervous system of Caenorhabditis elegans nematodes in which both LK concentrations and UNC-33 protein were manipulated...
September 2013: Journal of Neuroscience Research
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