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Analysis of Gene Expression Data for Gene Ontology
ANALYSIS OF GENE EXPRESSION DATA FOR GENE ONTOLOGY BASED PROTEIN FUNCTION PREDICTION A Thesis Presented to The Graduate Faculty of The University of Akron In Partial Fulfillment of the Requirements for the Degree Master of Science Robert Daniel Macholan May 2011 ANALYSIS OF GENE EXPRESSION DATA FOR GENE ONTOLOGY BASED PROTEIN FUNCTION PREDICTION Robert Daniel Macholan Thesis Approved: Accepted: _______________________________ _______________________________ Advisor Department Chair Dr. Zhong-Hui Duan Dr. Chien-Chung Chan _______________________________ _______________________________ Committee Member Dean of the College Dr. Chien-Chung Chan Dr. Chand K. Midha _______________________________ _______________________________ Committee Member Dean of the Graduate School Dr. Yingcai Xiao Dr. George R. Newkome _______________________________ Date ii ABSTRACT A tremendous increase in genomic data has encouraged biologists to turn to bioinformatics in order to assist in its interpretation and processing. One of the present challenges that need to be overcome in order to understand this data more completely is the development of a reliable method to accurately predict the function of a protein from its genomic information. This study focuses on developing an effective algorithm for protein function prediction. The algorithm is based on proteins that have similar expression patterns. The similarity of the expression data is determined using a novel measure, the slope matrix. The slope matrix introduces a normalized method for the comparison of expression levels throughout a proteome. The algorithm is tested using real microarray gene expression data. Their functions are characterized using gene ontology annotations. The results of the case study indicate the protein function prediction algorithm developed is comparable to the prediction algorithms that are based on the annotations of homologous proteins. -
A Computational Approach for Defining a Signature of Β-Cell Golgi Stress in Diabetes Mellitus
Page 1 of 781 Diabetes A Computational Approach for Defining a Signature of β-Cell Golgi Stress in Diabetes Mellitus Robert N. Bone1,6,7, Olufunmilola Oyebamiji2, Sayali Talware2, Sharmila Selvaraj2, Preethi Krishnan3,6, Farooq Syed1,6,7, Huanmei Wu2, Carmella Evans-Molina 1,3,4,5,6,7,8* Departments of 1Pediatrics, 3Medicine, 4Anatomy, Cell Biology & Physiology, 5Biochemistry & Molecular Biology, the 6Center for Diabetes & Metabolic Diseases, and the 7Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202; 2Department of BioHealth Informatics, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202; 8Roudebush VA Medical Center, Indianapolis, IN 46202. *Corresponding Author(s): Carmella Evans-Molina, MD, PhD ([email protected]) Indiana University School of Medicine, 635 Barnhill Drive, MS 2031A, Indianapolis, IN 46202, Telephone: (317) 274-4145, Fax (317) 274-4107 Running Title: Golgi Stress Response in Diabetes Word Count: 4358 Number of Figures: 6 Keywords: Golgi apparatus stress, Islets, β cell, Type 1 diabetes, Type 2 diabetes 1 Diabetes Publish Ahead of Print, published online August 20, 2020 Diabetes Page 2 of 781 ABSTRACT The Golgi apparatus (GA) is an important site of insulin processing and granule maturation, but whether GA organelle dysfunction and GA stress are present in the diabetic β-cell has not been tested. We utilized an informatics-based approach to develop a transcriptional signature of β-cell GA stress using existing RNA sequencing and microarray datasets generated using human islets from donors with diabetes and islets where type 1(T1D) and type 2 diabetes (T2D) had been modeled ex vivo. To narrow our results to GA-specific genes, we applied a filter set of 1,030 genes accepted as GA associated. -
Pathogenic Variants in the DEAH-Box RNA Helicase DHX37 Are a Frequent Cause of 46,XY Gonadal Dysgenesis and 46,XY Testicular Regression Syndrome
ARTICLE © American College of Medical Genetics and Genomics Pathogenic variants in the DEAH-box RNA helicase DHX37 are a frequent cause of 46,XY gonadal dysgenesis and 46,XY testicular regression syndrome Ken McElreavey, PhD 1, Anne Jorgensen, PhD 2, Caroline Eozenou, PhD1, Tiphanie Merel, MSc1, Joelle Bignon-Topalovic, BSc1, Daisylyn Senna Tan, BSc3, Denis Houzelstein, PhD 1, Federica Buonocore, PhD 4, Nick Warr, PhD 5, Raissa G. G. Kay, PhD5, Matthieu Peycelon, MD, PhD 6,7,8, Jean-Pierre Siffroi, MD, PhD6, Inas Mazen, MD9, John C. Achermann, MD, PhD 4, Yuliya Shcherbak, MD10, Juliane Leger, MD, PhD11, Agnes Sallai, MD 12, Jean-Claude Carel, MD, PhD 11, Laetitia Martinerie, MD, PhD11, Romain Le Ru, MD13, Gerard S. Conway, MD, PhD14, Brigitte Mignot, MD15, Lionel Van Maldergem, MD, PhD 16, Rita Bertalan, MD, PhD17, Evgenia Globa, MD, PhD 18, Raja Brauner, MD, PhD19, Ralf Jauch, PhD 3, Serge Nef, PhD 20, Andy Greenfield, PhD5 and Anu Bashamboo, PhD1 Purpose: XY individuals with disorders/differences of sex devel- specifically associated with gonadal dysgenesis and TRS. opment (DSD) are characterized by reduced androgenization Consistent with a role in early testis development, DHX37 is caused, in some children, by gonadal dysgenesis or testis regression expressed specifically in somatic cells of the developing human during fetal development. The genetic etiology for most patients and mouse testis. with 46,XY gonadal dysgenesis and for all patients with testicular Conclusion: DHX37 pathogenic variants are a new cause of an regression syndrome (TRS) is unknown. autosomal dominant form of 46,XY DSD, including gonadal Methods: We performed exome and/or Sanger sequencing in 145 dysgenesis and TRS, showing that these conditions are part of a individuals with 46,XY DSD of unknown etiology including clinical spectrum. -
Identifizierung Und Charakterisierung Von T-Zell-Definierten Antigenen
Identifizierung und Charakterisierung von Zielantigenen alloreaktiver zytotoxischer T-Zellen mittels cDNA-Bank-Expressionsklonierung in akuten myeloischen Leukämien Dissertation zur Erlangung des Grades Doktor der Naturwissenschaften am Fachbereich Biologie der Johannes Gutenberg-Universität Mainz Sabine Domning Mainz, 2012 Fachbereich Biologie der Johannes Gutenberg-Universität Mainz Dekan: 1.Berichterstatter: 2.Berichterstatter: Tag der mündlichen Prüfung: ZUSAMMENFASSUNG Zusammenfassung Allogene hämatopoetische Stammzelltransplantationen (HSZTs) werden insbesondere zur Behandlung von Patienten mit Hochrisiko-Leukämien durchgeführt. Dabei bewirken T- Zellreaktionen gegen Minorhistokompatibilitätsantigene (mHAgs) sowohl den therapeutisch erwünschten graft-versus-leukemia (GvL)-Effekt als auch die schädigende graft-versus-host (GvH)- Erkrankung. Für die Identifizierung neuer mHAgs mittels des T-Zell-basierten cDNA- Expressionsscreenings waren leukämiereaktive T-Zellpopulationen durch Stimulation naïver CD8+- T-Lymphozyten gesunder HLA-Klasse I-identischer Buffy Coat-Spender mit Leukämiezellen von Patienten mit akuter myeloischer Leukämie (AML) generiert worden (Albrecht et al., Cancer Immunol. Immunother. 60:235, 2011). Im Rahmen der vorliegenden Arbeit wurde mit diesen im AML-Modell des Patienten MZ529 das mHAg CYBA-72Y identifiziert. Es resultiert aus einem bekannten Einzelnukleotidpolymorphismus (rs4673: CYBA-242T/C) des Gens CYBA (kodierend für Cytochrom b-245 α-Polypeptid; syn.: p22phox), der zu einem Austausch von Tyrosin (Y) zu Histidin (H) an Aminosäureposition 72 führt. Das mHAg wurde von T-Lymphozyten sowohl in Assoziation mit HLA-B*15:01 als auch mit HLA-B*15:07 erkannt. Eine allogene T-Zellantwort gegen CYBA-72Y wurde in einem weiteren AML-Modell (MZ987) beobachtet, die ebenso wie in dem AML-Modell MZ529 polyklonal war. Insgesamt konnte bei drei von fünf getesteten HLA-B*15:01-positiven Buffy Coat-Spendern, die homozygot für CYBA-72H (H/H) waren, eine CYBA-72Y-spezifische T- Zellantwort generiert werden. -
Human Induced Pluripotent Stem Cell–Derived Podocytes Mature Into Vascularized Glomeruli Upon Experimental Transplantation
BASIC RESEARCH www.jasn.org Human Induced Pluripotent Stem Cell–Derived Podocytes Mature into Vascularized Glomeruli upon Experimental Transplantation † Sazia Sharmin,* Atsuhiro Taguchi,* Yusuke Kaku,* Yasuhiro Yoshimura,* Tomoko Ohmori,* ‡ † ‡ Tetsushi Sakuma, Masashi Mukoyama, Takashi Yamamoto, Hidetake Kurihara,§ and | Ryuichi Nishinakamura* *Department of Kidney Development, Institute of Molecular Embryology and Genetics, and †Department of Nephrology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan; ‡Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, Hiroshima, Japan; §Division of Anatomy, Juntendo University School of Medicine, Tokyo, Japan; and |Japan Science and Technology Agency, CREST, Kumamoto, Japan ABSTRACT Glomerular podocytes express proteins, such as nephrin, that constitute the slit diaphragm, thereby contributing to the filtration process in the kidney. Glomerular development has been analyzed mainly in mice, whereas analysis of human kidney development has been minimal because of limited access to embryonic kidneys. We previously reported the induction of three-dimensional primordial glomeruli from human induced pluripotent stem (iPS) cells. Here, using transcription activator–like effector nuclease-mediated homologous recombination, we generated human iPS cell lines that express green fluorescent protein (GFP) in the NPHS1 locus, which encodes nephrin, and we show that GFP expression facilitated accurate visualization of nephrin-positive podocyte formation in -
Découverte De Nouveaux Transcrits De Fusion Dans Des Tumeurs
Découverte de nouveaux transcrits de fusion dans des tumeurs pédiatriques en rechute et caractérisation fonctionnelle d’un nouvel oncogène LMO3-BORCS5 Celia Dupain Jourda To cite this version: Celia Dupain Jourda. Découverte de nouveaux transcrits de fusion dans des tumeurs pédiatriques en rechute et caractérisation fonctionnelle d’un nouvel oncogène LMO3-BORCS5. Cancer. Université Paris Saclay (COmUE), 2018. Français. NNT : 2018SACLS310. tel-02426230 HAL Id: tel-02426230 https://tel.archives-ouvertes.fr/tel-02426230 Submitted on 2 Jan 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Découverte de nouveaux transcrits de fusion dans des tumeurs pédiatriques en rechute et caractérisation fonctionnelle d’un nouvel oncogène LMO3-BORCS5 NNT: 2018SACLS310 NNT: Thèse de doctorat de l'Université Paris-Saclay préparée à l’Université Paris-Sud École doctorale n°568 : Signalisations et réseaux intégratifs en biologie (Biosigne) Spécialité de doctorat: Aspects moléculaires et cellulaires de la biologie Thèse présentée et soutenue à Villejuif, le 16 octobre -
Transcriptional Expression of Zics As an Independent Indicator of Survival in Gliomas Zhaocheng Han, Jingnan Jia, Yangting Lv, Rongyanqi Wang & Kegang Cao*
www.nature.com/scientificreports OPEN Transcriptional expression of ZICs as an independent indicator of survival in gliomas Zhaocheng Han, Jingnan Jia, Yangting Lv, Rongyanqi Wang & Kegang Cao* The functional signifcance of the zinc-fnger of the cerebellum (ZIC) gene family in gliomas remains to be elucidated. Clinical data from patients with gliomas, containing expression levels of ZIC genes, were extracted from CCLE, GEPIA2 and The Human Protein Atlas (HPA). Univariate survival analysis adjusted by Cox regression via OncoLnc was used to determine the prognostic signifcance of ZIC expression. We used cBioPortal to explore the correlation between gene mutations and overall survival (OS). ZIC expression was found to be related to immune cell infltration in gliomas via TIMER analysis. GO term and KEGG pathway enrichment analyzes were performed with Metascape. PPI networks were constructed using STRING. The expression levels of ZIC1/3/4/5 in gliomas were signifcantly diferent from those in normal samples. High expression levels of ZIC1/5 were associated with poor OS in brain low-grade glioma (LGG) patients, while low ZIC3 expression combined was related to favorable OS in glioblastoma multiforme (GBM). ZIC alterations were associated with poor prognosis in LGG patients and related to favorable prognosis in GBM patients. We observed that the expression of ZICs was related to immune cell infltration in glioma patients. ZICs were enriched in several pathways and biological processes involving Neuroactive ligand-receptor interaction (hsa04080). The PPI network revealed that some proteins coexpressed with ZICs played a role in the pathogenesis of gliomas. Diferences in the expression levels of ZIC genes could provide a signifcant marker for predicting prognosis in gliomas. -
Sharmin Supple Legend 150706
Supplemental data Supplementary Figure 1 Generation of NPHS1-GFP iPS cells (A) TALEN activity tested in HEK 293 cells. The targeted region was PCR-amplified and cloned. Deletions in the NPHS1 locus were detected in four clones out of 10 that were sequenced. (B) PCR screening of human iPS cell homologous recombinants (C) Southern blot screening of human iPS cell homologous recombinants Supplementary Figure 2 Human glomeruli generated from NPHS1-GFP iPS cells (A) Morphological changes of GFP-positive glomeruli during differentiation in vitro. A different aggregate from the one shown in Figure 2 is presented. Lower panels: higher magnification of the areas marked by rectangles in the upper panels. Note the shape changes of the glomerulus (arrowheads). Scale bars: 500 µm. (B) Some, but not all, of the Bowman’s capsule cells were positive for nephrin (48E11 antibody: magenta) and GFP (green). Scale bars: 10 µm. Supplementary Figure 3 Histology of human podocytes generated in vitro (A) Transmission electron microscopy of the foot processes. Lower magnification of Figure 4H. Scale bars: 500 nm. (B) (C) The slit diaphragm between the foot processes. Higher magnification of the 1 regions marked by rectangles in panel A. Scale bar: 100 nm. (D) Absence of mesangial or vascular endothelial cells in the induced glomeruli. Anti-PDGFRβ and CD31 antibodies were used to detect the two lineages, respectively, and no positive signals were observed in the glomeruli. Podocytes are positive for WT1. Nuclei are counterstained with Nuclear Fast Red. Scale bars: 20 µm. Supplementary Figure 4 Cluster analysis of gene expression in various human tissues (A) Unbiased cluster analysis across various human tissues using the top 300 genes enriched in GFP-positive podocytes. -
Genome-Wide Analysis of Cancer/Testis Gene Expression
Genome-wide analysis of cancer/testis gene expression Oliver Hofmanna,b,1, Otavia L. Caballeroc, Brian J. Stevensond,e, Yao-Tseng Chenf, Tzeela Cohenc, Ramon Chuac, Christopher A. Maherb, Sumir Panjib, Ulf Schaeferb, Adele Krugerb, Minna Lehvaslaihob, Piero Carnincig,h, Yoshihide Hayashizakig,h, C. Victor Jongeneeld,e, Andrew J. G. Simpsonc, Lloyd J. Oldc,1, and Winston Hidea,b aDepartment of Biostatistics, Harvard School of Public Health, 655 Huntington Avenue, SPH2, 4th Floor, Boston, MA 02115; bSouth African National Bioinformatics Institute, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa; cLudwig Institute for Cancer Research, New York Branch at Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10021; dLudwig Institute for Cancer Research, Lausanne Branch, 1015 Lausanne, Switzerland; eSwiss Institute of Bioinformatics, 1015 Lausanne, Switzerland; fWeill Medical College of Cornell University, 1300 York Avenue, New York, NY 10021; gGenome Exploration Research Group (Genome Network Project Core Group), RIKEN Genomic Sciences Center (GSC), RIKEN Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan; and hGenome Science Laboratory, Discovery Research Institute, RIKEN Wako Institute, 2-1 Hirosawa, Wako, Saitama, 3510198, Japan Contributed by Lloyd J. Old, October 28, 2008 (sent for review June 6, 2008) Cancer/Testis (CT) genes, normally expressed in germ line cells but expression profile information frequently limited to the original also activated in a wide range of cancer types, often encode defining articles. In some cases, e.g., ACRBP, the original antigens that are immunogenic in cancer patients, and present CT-restricted expression in normal tissues could not be con- potential for use as biomarkers and targets for immunotherapy. -
Characterisation of the Expression of Tumour Antigens and Biomarkers in Myeloid Leukaemia and Ovarian Cancer
Title : Characterisation of the expression of tumour antigens and biomarkers in myeloid leukaemia and ovarian cancer Name : Ghazala Naz Khan This is a digitised version of a dissertation submitted to the University of Bedfordshire. It is available to view only. This item is subject to copyright. Characterisation of the Expression of Tumour Antigens and Biomarkers in Myeloid Leukaemia and Ovarian Cancer By Ghazala Naz Khan PhD A thesis submitted to the Faculty of Creative Arts, Technologies and Science, University of Bedfordshire in fulfilment of the requirements for the degree of Doctor of Philosophy December 2016 Abstract Acute myeloid leukaemia (AML) and ovarian cancer (OVC) are two difficult to treat cancers. AML is often treatable however minimal residual disease (MRD) endures such that many patients who achieve remission eventually relapse and succumb to the disease. OVC affects approximately 7000 women in the U.K. every year. It can occur at any age but is most common after menopause. Diagnosis at an early stage of disease greatly improves the chances of survival however, patients tend to be diagnosed in the later stages of disease when treatment is often less effective. Immunotherapy has the potential to reduce MRD and delay or prevent relapse. In order for immunotherapy to work, tumour antigens need to be identified and characterised so they can be effectively targeted. Personalised treatments require the identification of biomarkers, for disease detection and confirmation, as well as to provide an indication of best treatment and the prediction of survival. PASD1 has been found to be frequently expressed in haematological malignancies and I wanted to determine if there was a correlation between the presence of antigen-specific T cells in the periphery of patients with AML and PASD1 protein expression in the leukaemic cells. -
Inferring Biological Networks from Genome-Wide Transcriptional And
INFERRING BIOLOGICAL NETWORKS FROM GENOME-WIDE TRANSCRIPTIONAL AND FITNESS DATA By WAZEER MOHAMMAD VARSALLY A thesis submitted to The University of Birmingham for the degree of Doctor of Philosophy College of Life and Environmental Sciences School of Biosciences The University of Birmingham July 2013 I University of Birmingham Research Archive e-theses repository This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder. ABSTRACT In the last 15 years, the increased use of high throughput biology techniques such as genome-wide gene expression profiling, fitness profiling and protein interactomics has led to the generation of an extraordinary amount of data. The abundance of such diverse data has proven to be an essential foundation for understanding the complexities of molecular mechanisms and underlying pathways within a biological system. One approach of extrapolating biological information from this wealth of data has been through the use of reverse engineering methods to infer biological networks. This thesis demonstrates the capabilities and applications of such methodologies in identifying functionally enriched network modules in the yeast species Saccharomyces cerevisiae and Schizosaccharomyces pombe. This study marks the first time a mutual information based network inference approach has been applied to a set of specific genome-wide expression and fitness compendia, as well as the integration of these multi- level compendia. -
Human Social Genomics in the Multi-Ethnic Study of Atherosclerosis
Getting “Under the Skin”: Human Social Genomics in the Multi-Ethnic Study of Atherosclerosis by Kristen Monét Brown A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Epidemiological Science) in the University of Michigan 2017 Doctoral Committee: Professor Ana V. Diez-Roux, Co-Chair, Drexel University Professor Sharon R. Kardia, Co-Chair Professor Bhramar Mukherjee Assistant Professor Belinda Needham Assistant Professor Jennifer A. Smith © Kristen Monét Brown, 2017 [email protected] ORCID iD: 0000-0002-9955-0568 Dedication I dedicate this dissertation to my grandmother, Gertrude Delores Hampton. Nanny, no one wanted to see me become “Dr. Brown” more than you. I know that you are standing over the bannister of heaven smiling and beaming with pride. I love you more than my words could ever fully express. ii Acknowledgements First, I give honor to God, who is the head of my life. Truly, without Him, none of this would be possible. Countless times throughout this doctoral journey I have relied my favorite scripture, “And we know that all things work together for good, to them that love God, to them who are called according to His purpose (Romans 8:28).” Secondly, I acknowledge my parents, James and Marilyn Brown. From an early age, you two instilled in me the value of education and have been my biggest cheerleaders throughout my entire life. I thank you for your unconditional love, encouragement, sacrifices, and support. I would not be here today without you. I truly thank God that out of the all of the people in the world that He could have chosen to be my parents, that He chose the two of you.