Expression Profile of Significant Immortalization Genes in Colon Cancer
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Genomic Correlates of Relationship QTL Involved in Fore- Versus Hind Limb Divergence in Mice
Loyola University Chicago Loyola eCommons Biology: Faculty Publications and Other Works Faculty Publications 2013 Genomic Correlates of Relationship QTL Involved in Fore- Versus Hind Limb Divergence in Mice Mihaela Palicev Gunter P. Wagner James P. Noonan Benedikt Hallgrimsson James M. Cheverud Loyola University Chicago, [email protected] Follow this and additional works at: https://ecommons.luc.edu/biology_facpubs Part of the Biology Commons Recommended Citation Palicev, M, GP Wagner, JP Noonan, B Hallgrimsson, and JM Cheverud. "Genomic Correlates of Relationship QTL Involved in Fore- Versus Hind Limb Divergence in Mice." Genome Biology and Evolution 5(10), 2013. This Article is brought to you for free and open access by the Faculty Publications at Loyola eCommons. It has been accepted for inclusion in Biology: Faculty Publications and Other Works by an authorized administrator of Loyola eCommons. For more information, please contact [email protected]. This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License. © Palicev et al., 2013. GBE Genomic Correlates of Relationship QTL Involved in Fore- versus Hind Limb Divergence in Mice Mihaela Pavlicev1,2,*, Gu¨ nter P. Wagner3, James P. Noonan4, Benedikt Hallgrı´msson5,and James M. Cheverud6 1Konrad Lorenz Institute for Evolution and Cognition Research, Altenberg, Austria 2Department of Pediatrics, Cincinnati Children‘s Hospital Medical Center, Cincinnati, Ohio 3Yale Systems Biology Institute and Department of Ecology and Evolutionary Biology, Yale University 4Department of Genetics, Yale University School of Medicine 5Department of Cell Biology and Anatomy, The McCaig Institute for Bone and Joint Health and the Alberta Children’s Hospital Research Institute for Child and Maternal Health, University of Calgary, Calgary, Canada 6Department of Anatomy and Neurobiology, Washington University *Corresponding author: E-mail: [email protected]. -
Regulates Cellular Telomerase Activity by Methylation of TERT Promoter
www.impactjournals.com/oncotarget/ Oncotarget, 2017, Vol. 8, (No. 5), pp: 7977-7988 Research Paper Tianshengyuan-1 (TSY-1) regulates cellular Telomerase activity by methylation of TERT promoter Weibo Yu1, Xiaotian Qin2, Yusheng Jin1, Yawei Li2, Chintda Santiskulvong3, Victor Vu1, Gang Zeng4,5, Zuofeng Zhang6, Michelle Chow1, Jianyu Rao1,5 1Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA 2Beijing Boyuantaihe Biological Technology Co., Ltd., Beijing, China 3Genomics Core, Cedars-Sinai Medical Center, Los Angeles, CA, USA 4Department of Urology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA 5Jonsson Comprehensive Cancer Center, University of California at Los Angeles, Los Angeles, CA, USA 6Department of Epidemiology, School of Public Health, University of California at Los Angeles, Los Angeles, CA, USA Correspondence to: Jianyu Rao, email: [email protected] Keywords: TSY-1, hematopoietic cells, Telomerase, TERT, methylation Received: September 08, 2016 Accepted: November 24, 2016 Published: December 15, 2016 ABSTRACT Telomere and Telomerase have recently been explored as anti-aging and anti- cancer drug targets with only limited success. Previously we showed that the Chinese herbal medicine Tianshengyuan-1 (TSY-1), an agent used to treat bone marrow deficiency, has a profound effect on stimulating Telomerase activity in hematopoietic cells. Here, the mechanism of TSY-1 on cellular Telomerase activity was further investigated using HL60, a promyelocytic leukemia cell line, normal peripheral blood mononuclear cells, and CD34+ hematopoietic stem cells derived from umbilical cord blood. TSY-1 increases Telomerase activity in normal peripheral blood mononuclear cells and CD34+ hematopoietic stem cells with innately low Telomerase activity but decreases Telomerase activity in HL60 cells with high intrinsic Telomerase activity, both in a dose-response manner. -
Variation in the Anopheles Gambiae TEP1 Gene Shapes Local Population Structures of Malaria Mosquitoes
Variation in the Anopheles gambiae TEP1 Gene Shapes Local Population Structures of Malaria Mosquitoes D i s s e r t a t i o n Zur Erlangung des akademischen Grades D o c t o r r e r u m n a t u r a l i u m (Dr. rer. nat.) Im Fach Biologie eingereicht an der Lebenswissenschaftlichen Fakultät der Humboldt-Universität zu Berlin von BSc. (Biochemistry and Molecular Biology), MSc. (Biochemistry) Evans Kiplangat Rono Präsidentin der Humboldt-Universität zu Berlin: Prof. Dr.-Ιng. Dr. Sabine Kunst Dekan der Lebenswissenschaftlichen Fakultät: Prof. Dr. Bernhard Grimm Gutachter/innen: 1. Dr. Elena A. Levashina 2. Prof. Dr. Arturo Zychlinski 3. Prof. Dr. Susanne Hartmann Eingereicht am: Donnerstag, 04.05.2017 Tag der mündlichen Prüfung: Donnerstag, 29.06.2017 ii Zusammenfassung Abstract Zusammenfassung Rund eine halbe Million Menschen sterben jährlich im subsaharischen Afrika an Malaria Infektionen, die von der Anopheles gambiae Mücke übertragen werden. Die Allele (*R1, *R2, *S1 und *S2) des A. gambiae complement-like thioester-containing Protein 1 (TEP1) bestimmen die Fitness der Mücken, welches die männlichen Fertilität und den Resistenzgrad der Mücke gegen Pathogene wie Bakterien und Malaria- Parasiten. Dieser Kompromiss zwischen Reproduktion und Immunnität hat Auswirkungen auf die Größe der Mückenpopulationen und die Rate der Malariaübertragung, wodurch der TEP1 Lokus ein Primärziel für neue Malariakontrollstrategien darstellt. Wie die genetische Diversität von TEP1 die genetische Struktur natürlicher Vektorpopulationen beeinflusst, ist noch unklar. Die Zielsetzung dieser Doktorarbeit waren: i) die biogeographische Kartographierung der TEP1 Allele und Genotypen in lokalen Malariavektorpopulationen in Mali, Burkina Faso, Kamerun, und Kenia, und ii) die Bemessung des Einflusses von TEP1 Polymorphismen auf die Entwicklung humaner P. -
Genetics of Familial Non-Medullary Thyroid Carcinoma (FNMTC)
cancers Review Genetics of Familial Non-Medullary Thyroid Carcinoma (FNMTC) Chiara Diquigiovanni * and Elena Bonora Unit of Medical Genetics, Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy; [email protected] * Correspondence: [email protected]; Tel.: +39-051-208-8418 Simple Summary: Non-medullary thyroid carcinoma (NMTC) originates from thyroid follicular epithelial cells and is considered familial when occurs in two or more first-degree relatives of the patient, in the absence of predisposing environmental factors. Familial NMTC (FNMTC) cases show a high genetic heterogeneity, thus impairing the identification of pivotal molecular changes. In the past years, linkage-based approaches identified several susceptibility loci and variants associated with NMTC risk, however only few genes have been identified. The advent of next-generation sequencing technologies has improved the discovery of new predisposing genes. In this review we report the most significant genes where variants predispose to FNMTC, with the perspective that the integration of these new molecular findings in the clinical data of patients might allow an early detection and tailored therapy of the disease, optimizing patient management. Abstract: Non-medullary thyroid carcinoma (NMTC) is the most frequent endocrine tumor and originates from the follicular epithelial cells of the thyroid. Familial NMTC (FNMTC) has been defined in pedigrees where two or more first-degree relatives of the patient present the disease in absence of other predisposing environmental factors. Compared to sporadic cases, FNMTCs are often multifocal, recurring more frequently and showing an early age at onset with a worse outcome. FNMTC cases Citation: Diquigiovanni, C.; Bonora, E. -
NBN Gene Analysis and It's Impact on Breast Cancer
Journal of Medical Systems (2019) 43: 270 https://doi.org/10.1007/s10916-019-1328-z IMAGE & SIGNAL PROCESSING NBN Gene Analysis and it’s Impact on Breast Cancer P. Nithya1 & A. ChandraSekar1 Received: 8 March 2019 /Accepted: 7 May 2019 /Published online: 5 July 2019 # Springer Science+Business Media, LLC, part of Springer Nature 2019 Abstract Single Nucleotide Polymorphism (SNP) researches have become essential in finding out the congenital relationship of structural deviations with quantitative traits, heritable diseases and physical responsiveness to different medicines. NBN is a protein coding gene (Breast Cancer); Nibrin is used to fix and rebuild the body from damages caused because of strand breaks (both singular and double) associated with protein nibrin. NBN gene was retrieved from dbSNP/NCBI database and investigated using computational SNP analysis tools. The encrypted region in SNPs (exonal SNPs) were analyzed using software tools, SIFT, Provean, Polyphen, INPS, SNAP and Phd-SNP. The 3’ends of SNPs in un-translated region were also investigated to determine the impact of binding. The association of NBN gene polymorphism leads to several diseases was studied. Four SNPs were predicted to be highly damaged in coding regions which are responsible for the diseases such as, Aplastic Anemia, Nijmegan breakage syndrome, Microsephaly normal intelligence, immune deficiency and hereditary cancer predisposing syndrome (clivar). The present study will be helpful in finding the suitable drugs in future for various diseases especially for breast cancer. Keywords NBN . Single nucleotide polymorphism . Double strand breaks . nsSNP . Associated diseases Introduction NBN has a more complex structure due to its interaction with large proteins formed from the ATM gene which is NBN (Nibrin) is a protein coding gene, it is also known as highly essential in identifying damaged strands of DNA NBS1, Cell cycle regulatory Protein P95, is situated on and facilitating their repair [1]. -
Produktinformation
Produktinformation Diagnostik & molekulare Diagnostik Laborgeräte & Service Zellkultur & Verbrauchsmaterial Forschungsprodukte & Biochemikalien Weitere Information auf den folgenden Seiten! See the following pages for more information! Lieferung & Zahlungsart Lieferung: frei Haus Bestellung auf Rechnung SZABO-SCANDIC Lieferung: € 10,- HandelsgmbH & Co KG Erstbestellung Vorauskassa Quellenstraße 110, A-1100 Wien T. +43(0)1 489 3961-0 Zuschläge F. +43(0)1 489 3961-7 [email protected] • Mindermengenzuschlag www.szabo-scandic.com • Trockeneiszuschlag • Gefahrgutzuschlag linkedin.com/company/szaboscandic • Expressversand facebook.com/szaboscandic TNKS2 Antibody, HRP conjugated Product Code CSB-PA867136LB01HU Abbreviation Tankyrase-2 Storage Upon receipt, store at -20°C or -80°C. Avoid repeated freeze. Uniprot No. Q9H2K2 Immunogen Recombinant Human Tankyrase-2 protein (1-246AA) Raised In Rabbit Species Reactivity Human Tested Applications ELISA Relevance Poly-ADP-ribosyltransferase involved in various processes such as Wnt signaling pathway, telomere length and vesicle trafficking. Acts as an activator of the Wnt signaling pathway by mediating poly-ADP-ribosylation of AXIN1 and AXIN2, 2 key components of the beta-catenin destruction complex: poly-ADP- ribosylated target proteins are recognized by RNF146, which mediates their ubiquitination and subsequent degradation. Also mediates poly-ADP-ribosylation of BLZF1 and CASC3, followed by recruitment of RNF146 and subsequent ubiquitination. Mediates poly-ADP-ribosylation of TERF1, thereby contributing -
Elucidating the Role of POT1 C-Terminal Mutations in Cancer
Science Highlight – MarchApril 2017 2017 Elucidating the Role of POT1 C-terminal Mutations in Cancer The ends of our chromosomes are protected by nucleoprotein complexes known as telomeres. The hetero-hexameric shelterin complex (POT1, TPP1, TRF1, TRF2, TIN2 RAP1) binds single and double-stranded telomeric DNA and plays a critical role in telomere length regulation and maintenance [1]. POT1, a protein component of shelterin, binds single stranded telomeric DNA with high affinity and specificity using its two N-terminal OB folds. The C-terminus of POT1 is involved in TPP1 binding and together they are involved in regulating telomerase access to the telomeric overhang and suppression of undesired ATR dependent DNA damage response at telomeres. Naturally occurring mutations of POT1 are associated with familial melanoma and glioma and chronic lymphocytic leukemia [2-4]. How these two proteins interact with each other to form a functional telomeric complex and how POT1 naturally occurring mutations contribute to malignant cancer is currently unknown. Using the method of single-wavelength anomalous dispersion (SAD) and a mercury derivative the structure of POT1 C-terminal domain (POT1C) in complex with its TPP1 interacting domain to 2.1 Å resolution was determined. The data was collected at SSRL BL12-2 and the study was published in Nature Communications, 8:14928 (April 2017). The structure revealed that POT1C consists of an OB fold and a holiday junction resolvase domain both of which are involved in extensive contacts with the TPP1 polypeptide, a long coil with four helices (Figure 1). The atomic structure of POT1C- TPP1 was then used to design a host of biochemical and cell based assays geared toward understanding the role of POT1C naturally occurring mutations in cancer. -
A POT1 Mutation Implicates Defective Telomere End Fill-In and Telomere Truncations in Coats Plus
Downloaded from genesdev.cshlp.org on September 25, 2021 - Published by Cold Spring Harbor Laboratory Press A POT1 mutation implicates defective telomere end fill-in and telomere truncations in Coats plus Hiroyuki Takai,1,8 Emma Jenkinson,2,8 Shaheen Kabir,1 Riyana Babul-Hirji,3 Nasrin Najm-Tehrani,4 David A. Chitayat,5,6 Yanick J. Crow,2,7,9 and Titia de Lange1,9 1The Rockefeller University, New York, New York 10065, USA; 2Manchester Centre for Genomic Medicine, Institute of Human Development, Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PT, United Kingdom; 3Department of Pediatrics, Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario M5G 1Z5, Canada; 4Department of Pediatrics, Division of Opthalmology and Visions Sciences, The Hospital for Sick Children, University of Toronto, Toronto, Ontario M5G 1Z5, Canada; 5The Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario M5G 1X5, Canada; 6Department of Paediatrics, Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario M5G 1Z5, Canada; 7UMR 1163, Institut National de la Santé et de la Recherche Médicale, Laboratory of Neurogenetics and Neuroinflammation, Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Hôpital Necker, Paris 75015, France Coats plus (CP) can be caused by mutations in the CTC1 component of CST, which promotes polymerase α (polα)/ primase-dependent fill-in throughout the genome and at telomeres. The cellular pathology relating to CP has not been established. -
Rat Anti-TERF1 Monoclonal Antibody, Clone 683D (CABT-RM172) This Product Is for Research Use Only and Is Not Intended for Diagnostic Use
Rat Anti-TERF1 monoclonal antibody, clone 683D (CABT-RM172) This product is for research use only and is not intended for diagnostic use. PRODUCT INFORMATION Specificity Specifically detects murine Telomeric repeat-binding factor 1 (TRF1). Target TERF1 Immunogen His-tagged full-length recombinant mouse Telomeric repeat-binding factor 1 (TRF1). Isotype IgG1, κ Source/Host Rat Species Reactivity Mouse Clone 683D Purification Protein G purified Conjugate unconjugated Applications FC, ICC, IF, WB Molecular Weight ~51 kDa observed; 48.22 kDa calculated. Uncharacterized bands may be observed in some lysate(s). Format Liquid Size 100 μg, 25 μg Buffer 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl Preservative 0.05% sodium azide Storage Stable for 1 year at 2-8°C from date of receipt. Warnings Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals. 45-1 Ramsey Road, Shirley, NY 11967, USA Email: [email protected] Tel: 1-631-624-4882 Fax: 1-631-938-8221 1 © Creative Diagnostics All Rights Reserved BACKGROUND Introduction Telomeric repeat-binding factor 1 is encoded by the Terf1 gene in murine species. TRF1 is a component of the shelterin complex that is involved in the regulation of telomere length and protection. It binds to telomeric DNA as a homodimer and protects telomeres. -
Cell Cycle-Dependent Modification of Pot1 and Its Effects on Telomere
Cell cycle-dependent modification of Pot1 and its effects on telomere function Vitaliy Kuznetsov Thesis submitted towards the degree of Doctor of Philosophy University College of London Department of Biology London, WC1E 6BT The program of research was carried out at Cancer Research U.K. Laboratory of Telomere Biology 44 Lincoln’s Inn Fields, London, U.K. WC2A 3PX Supervisor: Dr Julia Promisel Cooper September 2008 I, Vitaliy Kuznetsov, confirm that the work presented in this thesis is my own. Where information has been derived from other sources, I confirm that this has been indicated in the thesis. ABSTRACT Telomere functions are tightly controlled throughout the cell cycle to allow telomerase access while suppressing a bona fide DNA damage response (DDR) at linear chromosome ends. However, the mechanisms that link cell cycle progression with telomere functions are largely unknown. Here we show that a key S-phase kinase, DDK (Dbf4-dependent protein kinase), phosphorylates the telomere binding protein Pot1, and that this phosphorylation is crucial for DNA damage checkpoint inactivation, the suppression of homologous recombination (HR) at telomeres, and the prevention of telomere loss. DDK phosphorylates Pot1 in a very conserved region of its most amino-terminal-proximal OB fold, suggesting that this regulation of telomere function may be widely conserved. Mutation of Pot1 phosphorylation sites leads to telomerase independent telomere maintenance through constant HR, as well as a dependence of telomere maintenance proteins involved in checkpoint activation and HR. These results uncover a novel and important link between DDR suppression and telomere maintenance. The failure in Pot1 phosphorylation and DDR inactivation could potentially lead to uncontrolled cell proliferation without a requirement for telomerase by switching cells to HR dependent telomere homeostasis. -
Mouse Tep1 Conditional Knockout Project (CRISPR/Cas9)
https://www.alphaknockout.com Mouse Tep1 Conditional Knockout Project (CRISPR/Cas9) Objective: To create a Tep1 conditional knockout Mouse model (C57BL/6J) by CRISPR/Cas-mediated genome engineering. Strategy summary: The Tep1 gene (NCBI Reference Sequence: NM_009351 ; Ensembl: ENSMUSG00000006281 ) is located on Mouse chromosome 14. 55 exons are identified, with the ATG start codon in exon 2 and the TGA stop codon in exon 55 (Transcript: ENSMUST00000006444). Exon 10 will be selected as conditional knockout region (cKO region). Deletion of this region should result in the loss of function of the Mouse Tep1 gene. To engineer the targeting vector, homologous arms and cKO region will be generated by PCR using BAC clone RP23-321A24 as template. Cas9, gRNA and targeting vector will be co-injected into fertilized eggs for cKO Mouse production. The pups will be genotyped by PCR followed by sequencing analysis. Note: Mice homozygous for a disruption in this gene show no obvious phenotype. No changes are seen in telomerase activity or telomere length. Exon 10 starts from about 19.88% of the coding region. The knockout of Exon 10 will result in frameshift of the gene. The size of intron 9 for 5'-loxP site insertion: 4878 bp, and the size of intron 10 for 3'-loxP site insertion: 990 bp. The size of effective cKO region: ~610 bp. The cKO region does not have any other known gene. Page 1 of 8 https://www.alphaknockout.com Overview of the Targeting Strategy Wildtype allele gRNA region 5' gRNA region 3' 1 10 11 12 13 55 Targeting vector Targeted allele Constitutive KO allele (After Cre recombination) Legends Exon of mouse Tep1 Homology arm cKO region loxP site Page 2 of 8 https://www.alphaknockout.com Overview of the Dot Plot Window size: 10 bp Forward Reverse Complement Sequence 12 Note: The sequence of homologous arms and cKO region is aligned with itself to determine if there are tandem repeats. -
The Genetics and Clinical Manifestations of Telomere Biology Disorders Sharon A
REVIEW The genetics and clinical manifestations of telomere biology disorders Sharon A. Savage, MD1, and Alison A. Bertuch, MD, PhD2 3 Abstract: Telomere biology disorders are a complex set of illnesses meric sequence is lost with each round of DNA replication. defined by the presence of very short telomeres. Individuals with classic Consequently, telomeres shorten with aging. In peripheral dyskeratosis congenita have the most severe phenotype, characterized blood leukocytes, the cells most extensively studied, the rate 4 by the triad of nail dystrophy, abnormal skin pigmentation, and oral of attrition is greatest during the first year of life. Thereafter, leukoplakia. More significantly, these individuals are at very high risk telomeres shorten more gradually. When the extent of telo- of bone marrow failure, cancer, and pulmonary fibrosis. A mutation in meric DNA loss exceeds a critical threshold, a robust anti- one of six different telomere biology genes can be identified in 50–60% proliferative signal is triggered, leading to cellular senes- of these individuals. DKC1, TERC, TERT, NOP10, and NHP2 encode cence or apoptosis. Thus, telomere attrition is thought to 1 components of telomerase or a telomerase-associated factor and TINF2, contribute to aging phenotypes. 5 a telomeric protein. Progressively shorter telomeres are inherited from With the 1985 discovery of telomerase, the enzyme that ex- generation to generation in autosomal dominant dyskeratosis congenita, tends telomeric nucleotide repeats, there has been rapid progress resulting in disease anticipation. Up to 10% of individuals with apparently both in our understanding of basic telomere biology and the con- acquired aplastic anemia or idiopathic pulmonary fibrosis also have short nection of telomere biology to human disease.