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2017.08.28 Anne Barry-Reidy Thesis Final.Pdf
REGULATION OF BOVINE β-DEFENSIN EXPRESSION THIS THESIS IS SUBMITTED TO THE UNIVERSITY OF DUBLIN FOR THE DEGREE OF DOCTOR OF PHILOSOPHY 2017 ANNE BARRY-REIDY SCHOOL OF BIOCHEMISTRY & IMMUNOLOGY TRINITY COLLEGE DUBLIN SUPERVISORS: PROF. CLIONA O’FARRELLY & DR. KIERAN MEADE TABLE OF CONTENTS DECLARATION ................................................................................................................................. vii ACKNOWLEDGEMENTS ................................................................................................................... viii ABBREVIATIONS ................................................................................................................................ix LIST OF FIGURES............................................................................................................................. xiii LIST OF TABLES .............................................................................................................................. xvii ABSTRACT ........................................................................................................................................xix Chapter 1 Introduction ........................................................................................................ 1 1.1 Antimicrobial/Host-defence peptides ..................................................................... 1 1.2 Defensins................................................................................................................. 1 1.3 β-defensins ............................................................................................................. -
Genome-Wide Inference of Natural Selection on Human Transcription Factor Binding Sites
ANALYSIS Genome-wide inference of natural selection on human transcription factor binding sites Leonardo Arbiza1, Ilan Gronau1, Bulent A Aksoy2, Melissa J Hubisz1, Brad Gulko3, Alon Keinan1–3 & Adam Siepel1–3 For decades, it has been hypothesized that gene regulation persistence in humans7,8. In addition, some genome-wide analyses has had a central role in human evolution, yet much remains have found bulk statistical evidence of natural selection in noncoding unknown about the genome-wide impact of regulatory regions near genes, presumably due to cis-regulatory elements9–12. mutations. Here we use whole-genome sequences and genome- Nevertheless, evidence in support of the overall prominence of wide chromatin immunoprecipitation and sequencing data to cis-regulatory mutations in evolutionary adaptation remains largely demonstrate that natural selection has profoundly influenced anecdotal and indirect, and there is continuing controversy about the human transcription factor binding sites since the divergence relative roles of regulatory and protein-coding sequences in evolu- of humans from chimpanzees 4–6 million years ago. Our tion8. Large-scale genomic studies of the evolution of transcription analysis uses a new probabilistic method, called INSIGHT, for factor binding sites have the potential to advance this debate, but a measuring the influence of selection on collections of short, major limitation of such studies so far has been a lack of precisely interspersed noncoding elements. We find that, on average, annotated binding sites across the genome. The analysis of con- transcription factor binding sites have experienced somewhat served noncoding sequences and/or promoter regions rather than weaker selection than protein-coding genes. -
Open Dogan Phdthesis Final.Pdf
The Pennsylvania State University The Graduate School Eberly College of Science ELUCIDATING BIOLOGICAL FUNCTION OF GENOMIC DNA WITH ROBUST SIGNALS OF BIOCHEMICAL ACTIVITY: INTEGRATIVE GENOME-WIDE STUDIES OF ENHANCERS A Dissertation in Biochemistry, Microbiology and Molecular Biology by Nergiz Dogan © 2014 Nergiz Dogan Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy August 2014 ii The dissertation of Nergiz Dogan was reviewed and approved* by the following: Ross C. Hardison T. Ming Chu Professor of Biochemistry and Molecular Biology Dissertation Advisor Chair of Committee David S. Gilmour Professor of Molecular and Cell Biology Anton Nekrutenko Professor of Biochemistry and Molecular Biology Robert F. Paulson Professor of Veterinary and Biomedical Sciences Philip Reno Assistant Professor of Antropology Scott B. Selleck Professor and Head of the Department of Biochemistry and Molecular Biology *Signatures are on file in the Graduate School iii ABSTRACT Genome-wide measurements of epigenetic features such as histone modifications, occupancy by transcription factors and coactivators provide the opportunity to understand more globally how genes are regulated. While much effort is being put into integrating the marks from various combinations of features, the contribution of each feature to accuracy of enhancer prediction is not known. We began with predictions of 4,915 candidate erythroid enhancers based on genomic occupancy by TAL1, a key hematopoietic transcription factor that is strongly associated with gene induction in erythroid cells. Seventy of these DNA segments occupied by TAL1 (TAL1 OSs) were tested by transient transfections of cultured hematopoietic cells, and 56% of these were active as enhancers. Sixty-six TAL1 OSs were evaluated in transgenic mouse embryos, and 65% of these were active enhancers in various tissues. -
Figure S1. Representative Report Generated by the Ion Torrent System Server for Each of the KCC71 Panel Analysis and Pcafusion Analysis
Figure S1. Representative report generated by the Ion Torrent system server for each of the KCC71 panel analysis and PCaFusion analysis. (A) Details of the run summary report followed by the alignment summary report for the KCC71 panel analysis sequencing. (B) Details of the run summary report for the PCaFusion panel analysis. A Figure S1. Continued. Representative report generated by the Ion Torrent system server for each of the KCC71 panel analysis and PCaFusion analysis. (A) Details of the run summary report followed by the alignment summary report for the KCC71 panel analysis sequencing. (B) Details of the run summary report for the PCaFusion panel analysis. B Figure S2. Comparative analysis of the variant frequency found by the KCC71 panel and calculated from publicly available cBioPortal datasets. For each of the 71 genes in the KCC71 panel, the frequency of variants was calculated as the variant number found in the examined cases. Datasets marked with different colors and sample numbers of prostate cancer are presented in the upper right. *Significantly high in the present study. Figure S3. Seven subnetworks extracted from each of seven public prostate cancer gene networks in TCNG (Table SVI). Blue dots represent genes that include initial seed genes (parent nodes), and parent‑child and child‑grandchild genes in the network. Graphical representation of node‑to‑node associations and subnetwork structures that differed among and were unique to each of the seven subnetworks. TCNG, The Cancer Network Galaxy. Figure S4. REVIGO tree map showing the predicted biological processes of prostate cancer in the Japanese. Each rectangle represents a biological function in terms of a Gene Ontology (GO) term, with the size adjusted to represent the P‑value of the GO term in the underlying GO term database. -
An Amino-Terminal Domain of Mxil Mediates Anti-Myc Oncogenic Activity and Interacts with a Homolog of the Yeast Transcriptional Repressor SIN3
CORE Metadata, citation and similar papers at core.ac.uk Provided by Elsevier - Publisher Connector Cell, Vol, 80, 777-786, March 10, 1995, Copyright © 1995 by Cell Press An Amino-Terminal Domain of Mxil Mediates Anti-Myc Oncogenic Activity and Interacts with a Homolog of the Yeast Transcriptional Repressor SIN3 Nicole Schreiber-Agus,*t Lynda Chin,*tt Ken Chen,t et al., 1990), and a carboxy-terminal a-helical domain re- Richard Torres, t Govinda Rao,§ Peter Guida,t quired for dimerization with another basic region-helix- Arthur h Skoultchi,§ and Ronald A. DePinhot Ioop-helix-leucine zipper (bHLH-LZ) protein, Max (Black- "rDepartments of Microbiology and Immunology wood and Eisenman, 1991; Prendergast et al., 1991). and of Medicine Many of the biochemical and biological activities of Myc §Department of Cell Biology appear to be highly dependent upon its association with ~Division of Dermatology Max (Blackwood and Eisenman, 1991 ; Prendergast et al., Albert Einstein College of Medicine 1991; Kretzner et al., 1992; Amati et al., 1993a, 1993b). Bronx, New York 10461 In addition to its key role as an obligate partner in transacti- vation-competent Myc-Max complexes, Max may also re- press Myc-responsive genes through the formation of Summary transactivation-inert complexes that are capable of bind- ing the Myc-Max recognition sequence (Blackwood et al., Documented interactions among members of the Myc 1992; Kato et al., 1992; Kretzner et al., 1992; Makela et superfamily support a yin-yang model for the regula- al., 1992; Mukherjee et al., 1992; Prendergast et al., 1992; tion of Myc-responsive genes in which t ransactivation- Ayer et al., 1993; Zervos et al., 1993). -
Transcriptional Control of Tissue-Resident Memory T Cell Generation
Transcriptional control of tissue-resident memory T cell generation Filip Cvetkovski Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Graduate School of Arts and Sciences COLUMBIA UNIVERSITY 2019 © 2019 Filip Cvetkovski All rights reserved ABSTRACT Transcriptional control of tissue-resident memory T cell generation Filip Cvetkovski Tissue-resident memory T cells (TRM) are a non-circulating subset of memory that are maintained at sites of pathogen entry and mediate optimal protection against reinfection. Lung TRM can be generated in response to respiratory infection or vaccination, however, the molecular pathways involved in CD4+TRM establishment have not been defined. Here, we performed transcriptional profiling of influenza-specific lung CD4+TRM following influenza infection to identify pathways implicated in CD4+TRM generation and homeostasis. Lung CD4+TRM displayed a unique transcriptional profile distinct from spleen memory, including up-regulation of a gene network induced by the transcription factor IRF4, a known regulator of effector T cell differentiation. In addition, the gene expression profile of lung CD4+TRM was enriched in gene sets previously described in tissue-resident regulatory T cells. Up-regulation of immunomodulatory molecules such as CTLA-4, PD-1, and ICOS, suggested a potential regulatory role for CD4+TRM in tissues. Using loss-of-function genetic experiments in mice, we demonstrate that IRF4 is required for the generation of lung-localized pathogen-specific effector CD4+T cells during acute influenza infection. Influenza-specific IRF4−/− T cells failed to fully express CD44, and maintained high levels of CD62L compared to wild type, suggesting a defect in complete differentiation into lung-tropic effector T cells. -
Supplementary Data
SUPPLEMENTARY DATA A cyclin D1-dependent transcriptional program predicts clinical outcome in mantle cell lymphoma Santiago Demajo et al. 1 SUPPLEMENTARY DATA INDEX Supplementary Methods p. 3 Supplementary References p. 8 Supplementary Tables (S1 to S5) p. 9 Supplementary Figures (S1 to S15) p. 17 2 SUPPLEMENTARY METHODS Western blot, immunoprecipitation, and qRT-PCR Western blot (WB) analysis was performed as previously described (1), using cyclin D1 (Santa Cruz Biotechnology, sc-753, RRID:AB_2070433) and tubulin (Sigma-Aldrich, T5168, RRID:AB_477579) antibodies. Co-immunoprecipitation assays were performed as described before (2), using cyclin D1 antibody (Santa Cruz Biotechnology, sc-8396, RRID:AB_627344) or control IgG (Santa Cruz Biotechnology, sc-2025, RRID:AB_737182) followed by protein G- magnetic beads (Invitrogen) incubation and elution with Glycine 100mM pH=2.5. Co-IP experiments were performed within five weeks after cell thawing. Cyclin D1 (Santa Cruz Biotechnology, sc-753), E2F4 (Bethyl, A302-134A, RRID:AB_1720353), FOXM1 (Santa Cruz Biotechnology, sc-502, RRID:AB_631523), and CBP (Santa Cruz Biotechnology, sc-7300, RRID:AB_626817) antibodies were used for WB detection. In figure 1A and supplementary figure S2A, the same blot was probed with cyclin D1 and tubulin antibodies by cutting the membrane. In figure 2H, cyclin D1 and CBP blots correspond to the same membrane while E2F4 and FOXM1 blots correspond to an independent membrane. Image acquisition was performed with ImageQuant LAS 4000 mini (GE Healthcare). Image processing and quantification were performed with Multi Gauge software (Fujifilm). For qRT-PCR analysis, cDNA was generated from 1 µg RNA with qScript cDNA Synthesis kit (Quantabio). qRT–PCR reaction was performed using SYBR green (Roche). -
Single-Cell RNA Sequencing Analysis of Human Neural Grafts Revealed Unexpected Cell Type Underlying the Genetic Risk of Parkinson’S Disease
Single-cell RNA Sequencing Analysis of Human Neural Grafts Revealed Unexpected Cell Type Underlying the Genetic Risk of Parkinson’s Disease Yingshan Wang1, Gang Wu2 1 Episcopal High School, 1200 N Quaker Ln, Alexandria, VA, USA, 22302 2 Fujian Sanbo Funeng Brain Hospital; Sanbo Brain Hospital Capital Medical University Abstract Parkinson’s disease (PD) is the second most common neurodegenerative disorder, affecting more than 6 million patients globally. Though previous studies have proposed several disease-related molecular pathways, how cell-type specific mechanisms contribute to the pathogenesis of PD is still mostly unknown. In this study, we analyzed single-cell RNA sequencing data of human neural grafts transplanted to the midbrains of rat PD models. Specifically, we performed cell-type identification, risk gene screening, and co-expression analysis. Our results revealed the unexpected genetic risk of oligodendrocytes as well as important pathways and transcription factors in PD pathology. The study may provide an overarching framework for understanding the cell non- autonomous effects in PD, inspiring new research hypotheses and therapeutic strategies. Keywords Parkinson’s Disease; Single-cell RNA Sequencing; Oligodendrocytes; Cell Non-autonomous; Co- expression Analysis; Transcription Factors 1 Table of Contents 1. Introduction ................................................................................................................................. 3 2. Methods...................................................................................................................................... -
Microrna Profiling of Low-Grade Glial and Glioneuronal Tumors Shows An
Modern Pathology (2017) 30, 204–216 204 © 2017 USCAP, Inc All rights reserved 0893-3952/17 $32.00 MicroRNA profiling of low-grade glial and glioneuronal tumors shows an independent role for cluster 14q32.31 member miR-487b Heather Marion Ames1,4, Ming Yuan1,4, Maria Adelita Vizcaíno1,3, Wayne Yu2 and Fausto J Rodriguez1,2 1Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; 2Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA and 3Department of Cellular and Tissue Biology, Universidad Nacional Autónoma de México, Mexico City, DF, USA Low-grade (WHO I-II) gliomas and glioneuronal tumors represent the most frequent primary tumors of the central nervous system in children. They often have a good prognosis following total resection, however they can create many neurological complications due to mass effect, and may be difficult to resect depending on anatomic location. MicroRNAs have been identified as molecular regulators of protein expression/translation that can repress multiple mRNAs concurrently through base pairing, and have an important role in cancer, including brain tumors. Using the NanoString digital counting system, we analyzed the expression levels of 800 microRNAs in nine low-grade glial and glioneuronal tumor types (n = 45). A set of 61 of these microRNAs were differentially expressed in tumors compared with the brain, and several showed levels varying by tumor type. The expression differences were more accentuated in subependymal giant cell astrocytoma, compared with other groups, and demonstrated the highest degree of microRNA repression validated by RT-PCR, including miR-129-2-3p, miR-219-5p, miR-338-3p, miR-487b, miR-885-5p, and miR-323a-3p. -
The Id-Protein Family in Developmental and Cancer-Associated Pathways Cornelia Roschger and Chiara Cabrele*
Roschger and Cabrele Cell Communication and Signaling (2017) 15:7 DOI 10.1186/s12964-016-0161-y REVIEW Open Access The Id-protein family in developmental and cancer-associated pathways Cornelia Roschger and Chiara Cabrele* Abstract Inhibitors of DNA binding and cell differentiation (Id) proteins are members of the large family of the helix-loop- helix (HLH) transcription factors, but they lack any DNA-binding motif. During development, the Id proteins play a key role in the regulation of cell-cycle progression and cell differentiation by modulating different cell-cycle regulators both by direct and indirect mechanisms. Several Id-protein interacting partners have been identified thus far, which belong to structurally and functionally unrelated families, including, among others, the class I and II bHLH transcription factors, the retinoblastoma protein and related pocket proteins, the paired-box transcription factors, and the S5a subunit of the 26 S proteasome. Although the HLH domain of the Id proteins is involved in most of their protein-protein interaction events, additional motifs located in their N-terminal and C-terminal regions are required for the recognition of diverse protein partners. The ability of the Id proteins to interact with structurally different proteins is likely to arise from their conformational flexibility: indeed, these proteins contain intrinsically disordered regions that, in the case of the HLH region, undergo folding upon self- or heteroassociation. Besides their crucial role for cell-fate determination and cell-cycle progression during development, other important cellular events have been related to the Id-protein expression in a number of pathologies. Dysregulated Id-protein expression has been associated with tumor growth, vascularization, invasiveness, metastasis, chemoresistance and stemness, as well as with various developmental defects and diseases. -
Integration of 198 Chip-Seq Datasets Reveals Human Cis-Regulatory Regions
Integration of 198 ChIP-seq datasets reveals human cis-regulatory regions Hamid Bolouri & Larry Ruzzo Thanks to Stephen Tapscott, Steven Henikoff & Zizhen Yao Slides will be available from: http://labs.fhcrc.org/bolouri/ Email [email protected] for manuscript (Bolouri & Ruzzo, submitted) Kleinjan & van Heyningen, Am. J. Hum. Genet., 2005, (76)8–32 Epstein, Briefings in Func. Genom. & Protemoics, 2009, 8(4)310-16 Regulation of SPi1 (Sfpi1, PU.1 protein) expression – part 1 miR155*, miR569# ~750nt promoter ~250nt promoter The antisense RNA • causes translational stalling • has its own promoter • requires distal SPI1 enhancer • is transcribed with/without SPI1. # Hikami et al, Arthritis & Rheumatism, 2011, 63(3):755–763 * Vigorito et al, 2007, Immunity 27, 847–859 Ebralidze et al, Genes & Development, 2008, 22: 2085-2092. Regulation of SPi1 expression – part 2 (mouse coordinates) Bidirectional ncRNA transcription proportional to PU.1 expression PU.1/ELF1/FLI1/GLI1 GATA1 GATA1 Sox4/TCF/LEF PU.1 RUNX1 SP1 RUNX1 RUNX1 SP1 ELF1 NF-kB SATB1 IKAROS PU.1 cJun/CEBP OCT1 cJun/CEBP 500b 500b 500b 500b 500b 750b 500b -18Kb -14Kb -12Kb -10Kb -9Kb Chou et al, Blood, 2009, 114: 983-994 Hoogenkamp et al, Molecular & Cellular Biology, 2007, 27(21):7425-7438 Zarnegar & Rothenberg, 2010, Mol. & cell Biol. 4922-4939 An NF-kB binding-site variant in the SPI1 URE reduces PU.1 expression & is GGGCCTCCCC correlated with AML GGGTCTTCCC Bonadies et al, Oncogene, 2009, 29(7):1062-72. SATB1 binding site A distal single nucleotide polymorphism alters long- range regulation of the PU.1 gene in acute myeloid leukemia Steidl et al, J Clin Invest. -
XPO7 Is a Tumor Suppressor Regulating P21cip1-Dependent Senescence
Downloaded from genesdev.cshlp.org on September 25, 2021 - Published by Cold Spring Harbor Laboratory Press XPO7 is a tumor suppressor regulating p21CIP1-dependent senescence Andrew J. Innes,1,2,3 Bin Sun,1,2 Verena Wagner,1,2 Sharon Brookes,1,2 Domhnall McHugh,1,2 Joaquim Pombo,1,2 Rosa María Porreca,1,2 Gopuraja Dharmalingam,1,2 Santiago Vernia,1,2 Johannes Zuber,4 Jean-Baptiste Vannier,1,2 Ramón García-Escudero,5,6,7 and Jesús Gil1,2 1MRC London Institute of Medical Sciences (LMS), London W12 0NN, United Kingdom; 2Institute of Clinical Sciences (ICS), Faculty of Medicine, Imperial College London, London W12 0NN, United Kingdom; 3Centre for Haematology, Department of Immunology and Inflammation, Imperial College London, London W12 0NN, United Kingdom; 4Research Institute of Molecular Pathology (IMP), 1030 Vienna, Austria; 5Molecular Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain; 6Research Institute 12 de Octubre (i+12), 28041 Madrid, Spain; 7Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain Senescence is a key barrier to neoplastic transformation. To identify senescence regulators relevant to cancer, we screened a genome-wide shRNA library. Here, we describe exportin 7 (XPO7) as a novel regulator of senescence and validate its function in telomere-induced, replicative, and oncogene-induced senescence (OIS). XPO7 is a bidirec- tional transporter that regulates the nuclear-cytoplasmic shuttling of a broad range of substrates. Depletion of XPO7 results in reduced levels of TCF3 and an impaired induction of the cyclin-dependent kinase inhibitor p21CIP1 during OIS. Deletion of XPO7 correlates with poorer overall survival in several cancer types.