WO 2017/184786 Al 26 October 2017 (26.10.2017) W !P O PCT

Total Page:16

File Type:pdf, Size:1020Kb

WO 2017/184786 Al 26 October 2017 (26.10.2017) W !P O PCT (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/184786 Al 26 October 2017 (26.10.2017) W !P O PCT (51) International Patent Classification: (US). YAN, Winston [US/US]; 145 Longwood Ave., Apt. C12N 15/11 (2006.01) C12N 15/113 (2010.01) 1, Brookline, MA 02446 (US). SANJANA, Neville, Es- C12N 9/22 (2006.01) C12N 15/63 (2006.01) pi [US/US]; 4 Washington Square Village, Apt. 16L, New York, NY 10012 (US). JONES, Sara [US/US]; c/o The (21) International Application Number: Broad Institute Inc., 415 Main Street, Cambridge, MA PCT/US20 17/028461 02142 (US). (22) International Filing Date: (74) Agent: KOWALSKI, Thomas, J. et al; Vedder Price P.C., 19 April 2017 (19.04.2017) 1633 Broadway, New York, NY 10019 (US). (25) Filing Language: English (81) Designated States (unless otherwise indicated, for every (26) Publication Langi English kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (30) Priority Data: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 62/324,834 19 April 2016 (19.04.2016) US DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (71) Applicants: THE BROAD INSTITUTE INC. [US/US]; HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, 415 Main Street, Cambridge, MA 02142 (US). KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MASSACHUSETTS INSTITUTE OF TECHNOLOGY MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, [US/US]; 77 Massachusetts Ave., Cambridge, MA 02139 PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, (US). SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (72) Inventors; and (71) Applicants: ZHANG, Feng [US/US]; 100 Pacific Street, (84) Designated States (unless otherwise indicated, for every Apt. 11, Cambridge, MA 02139 (US). ZETSCHE, Bemd kind of regional protection available): ARIPO (BW, GH, [DE/US]; 383 Washington Street, Gloucester, MA 01930 GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (54) Title: CPF1 COMPLEXES WITH REDUCED INDEL ACTIVITY \ V PA V PAM P A ¾ 00 00 Fig.. (57) Abstract: The invention provides for systems, methods, and compositions for targeting nucleic acids. In particular, the invention provides non-naturally occurring or engineered DNA-targeting systems comprising a novel DNA-targeting CRISPR effector protein o and at least one targeting nucleic acid component like a guide RNA. [Continued on nextpage] WO 2017/184786 Al llll II II 11III I II I II I II III I II III II I II UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) CPF1 COMPLEXES WITH REDUCED INDEL ACTIVITY RELATED APPLICATIONS AND INCORPORATION BY REFERENCE [0001] This application claims benefit of and priority to U.S. Provisional Application No. 62/324,834, filed April 19, 2016, incorporated herein by reference. [0002] Reference is made to U.S. Provisional Application Nos. 62/324,777 and 62/324,820 filed April 19, 2016, U.S. Provisional Application No. 62/351,558 filed June 17, 2016, U.S. Provisional Application No. 62/360,765 filed July 11, 2016, U.S. Provisional Application No. 62/376,379 filed August 17, 2016, and U.S. Provisional Application Nos 62/410,196 and 62/410,240, filed October 19, 2016, herein incorporated by reference. [0003] The foregoing applications, and all documents cited therein or during their prosecution ("appln cited documents") and ail documents cited or referenced in herein cited documents, together with any manufacturer's instructions, descriptions, product specifications, and product sheets for any products mentioned herein or in any document incorporated by reference herein, are hereby incorporated herein by reference, and may be employed in the practice of the invention. More specifically, all referenced documents are incorporated by reference to the same extent as if each individual document was specifically and individually indicated to be incorporated by reference. STATEMENT AS TO FEDERALLY SPONSORED RESEARCH [0004] This invention was made with government support under MH1 00706, MH1 10049, and HG008171 awarded by the National Institutes of Health. The government has certain rights in the invention. FIELD OF THE INVENTION [0005] The present invention generally relates to systems, methods and compositions used for the control of gene expression involving sequence targeting, such as perturbation of gene transcripts or nucleic acid editing, that may use vector systems related to Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and components thereof. BACKGROUND OF THE INVENTION [0006] Recent advances in genome sequencing techniques and analysis methods have significantly accelerated the ability to catalog and map genetic factors associated with a diverse range of biological functions and diseases. Precise genome targeting technologies are needed to enable systematic reverse engineering of causal genetic variations by allowing selective perturbation of individual genetic elements, as well as to advance synthetic biology, biotechnological, and medical applications. Although genome-editing techniques such as designer zinc fingers, transcription activator-like effectors (TALEs), or homing meganucleases are available for producing targeted genome perturbations, there remains a need for ew genome engineering technologies that employ novel strategies and molecular mechanisms and are affordable, easy to set up, scalable, and amenable to targeting multiple positions within the eukaryotic genome. This would provide a major resource for new applications in genome engineering and biotechnology. [0007] The CRISPR-Cas systems of bacterial and archaeal adaptive immunity show extreme diversity of protein composition and genomic loci architecture. The CRISPR-Cas system loci has more than 50 gene families and there s no strictly universal genes indicating fast evolution and extreme diversity of loci architecture. So far, adopting a multi-pronged approach, there is comprehensive cos gene identification of about 395 profiles for 93 Cas proteins. Classification includes signature gene profiles plus signatures of locus architecture. A new classification of CRISPR-Cas systems is proposed in which these systems are broadly divided into two classes, Class 1 with multisubunit effector complexes and Class 2 with single-subunit effector modules exemplified by the Cas9 protein. Novel effector proteins associated with Class 2 CRISPR-Cas systems may be developed as powerful genome engineering tools and the prediction of putative novel effector proteins and their engineering and optimization is important. [0008] Citation or identification of any document in this application is not an admission that such document is available as prior art to the present invention. SUMMARY OF THE INVENTION [0009] There exists a pressing need for alternative and robust systems and techniques for targeting nucleic acids or polynucleotides (e.g. DNA or any hybrid or derivative thereof) with a wide array of applications. This invention addresses this need and provides related advantages. Adding the novel DNA-targeting systems of the present application to the repertoire of genomic and epigenomic targeting technologies may transform the study and perturbation or editing of specific target sites through direct detection, analysis and manipulation. To utilize the DNA- targeting systems of the present application effectively for genomic or epigenomic targeting without deleterious effects, it is critical to understand aspects of engineering and optimization of these DNA targeting tools. [0010] The invention provides a method of modifying sequences associated with or at a target locus of interest, the method comprising delivering to said locus a no --naturally occurring or engineered composition comprising a Type V CRISPR-Cas loci effector protein and one or more nucleic acid components, wherein the effector protein forms a complex with the one or more nucleic acid components and upon binding of the said complex to the locus of interest the effector protein induces the modification of the sequences associated with or at the target locus of interest. In a preferred embodiment, the modification is the introduction of a strand break. In a preferred embodiment, the sequences associated with or at the target locus of interest comprises DNA and the effector protein is encoded by a subtype V-A CRISPR-Cas loci or a subtype V-B CRISPR-Cas loci. [00 ] It will be appreciated that the terms Cas enzyme, CRISPR enzyme, CRISPR protein Cas protein and CRISPR Cas are generally used interchangeably and at ail points of reference herein refer by analogy to novel CRISPR effector proteins further described in this application, unless othenvise apparent, such as by specific reference to Cas9. The CRISPR effector proteins described herein are preferably Cpf 1 effector proteins. [0012] The invention provides a method of modifying sequences associated with or at a target locus of interest, the method comprising delivering to said sequences associated with or at the locus a non-naturally occurring or engineered composition comprising a Cpfl loci effector protein and one or more nucleic acid components, wherein the Cpfl effector protein forms a complex with the one or more nucleic acid components and upon binding of the said complex to the locus of interest the effector protein induces the modification of the sequences associated with or at the target locus of interest.
Recommended publications
  • Thiadiazole Derivatives As Anticancer Agents
    Pharmacological Reports (2020) 72:1079–1100 https://doi.org/10.1007/s43440-020-00154-7 REVIEW Thiadiazole derivatives as anticancer agents Monika Szeliga1 Received: 15 June 2020 / Revised: 13 August 2020 / Accepted: 20 August 2020 / Published online: 3 September 2020 © The Author(s) 2020 Abstract In spite of substantial progress made toward understanding cancer pathogenesis, this disease remains one of the leading causes of mortality. Thus, there is an urgent need to develop novel, more efective anticancer therapeutics. Thiadiazole ring is a versatile scafold widely studied in medicinal chemistry. Mesoionic character of this ring allows thiadiazole-containing compounds to cross cellular membrane and interact strongly with biological targets. Consequently, these compounds exert a broad spectrum of biological activities. This review presents the current state of knowledge on thiadiazole derivatives that demonstrate in vitro and/or in vivo efcacy across the cancer models with an emphasis on targets of action. The infuence of the substituent on the compounds’ activity is depicted. Furthermore, the results from clinical trials assessing thiadiazole- containing drugs in cancer patients are summarized. Keywords Thiadiazole derivatives · Cancer · Anticancer therapy · Clinical trials Introduction antiparasitic, anti-infammatory and anticancer activities [2]. Due to the mesoionic nature, thiadiazoles are able to According to the most recent data provided by the Interna- cross the cellular membranes. Their relatively good lipo- tional Agency for Research on Cancer (IARC), 18.1 mil- solubility is most likely attributed to the presence of the sul- lion new cases and 9.6 million cancer deaths were regis- phur atom [3]. The thiadiazole-containing drugs, including tered worldwide in 2018 [1].
    [Show full text]
  • Table 2. Significant
    Table 2. Significant (Q < 0.05 and |d | > 0.5) transcripts from the meta-analysis Gene Chr Mb Gene Name Affy ProbeSet cDNA_IDs d HAP/LAP d HAP/LAP d d IS Average d Ztest P values Q-value Symbol ID (study #5) 1 2 STS B2m 2 122 beta-2 microglobulin 1452428_a_at AI848245 1.75334941 4 3.2 4 3.2316485 1.07398E-09 5.69E-08 Man2b1 8 84.4 mannosidase 2, alpha B1 1416340_a_at H4049B01 3.75722111 3.87309653 2.1 1.6 2.84852656 5.32443E-07 1.58E-05 1110032A03Rik 9 50.9 RIKEN cDNA 1110032A03 gene 1417211_a_at H4035E05 4 1.66015788 4 1.7 2.82772795 2.94266E-05 0.000527 NA 9 48.5 --- 1456111_at 3.43701477 1.85785922 4 2 2.8237185 9.97969E-08 3.48E-06 Scn4b 9 45.3 Sodium channel, type IV, beta 1434008_at AI844796 3.79536664 1.63774235 3.3 2.3 2.75319499 1.48057E-08 6.21E-07 polypeptide Gadd45gip1 8 84.1 RIKEN cDNA 2310040G17 gene 1417619_at 4 3.38875643 1.4 2 2.69163229 8.84279E-06 0.0001904 BC056474 15 12.1 Mus musculus cDNA clone 1424117_at H3030A06 3.95752801 2.42838452 1.9 2.2 2.62132809 1.3344E-08 5.66E-07 MGC:67360 IMAGE:6823629, complete cds NA 4 153 guanine nucleotide binding protein, 1454696_at -3.46081884 -4 -1.3 -1.6 -2.6026947 8.58458E-05 0.0012617 beta 1 Gnb1 4 153 guanine nucleotide binding protein, 1417432_a_at H3094D02 -3.13334396 -4 -1.6 -1.7 -2.5946297 1.04542E-05 0.0002202 beta 1 Gadd45gip1 8 84.1 RAD23a homolog (S.
    [Show full text]
  • Anticancer Effects of NSC‑631570 (Ukrain) in Head and Neck Cancer Cells: in Vitro Analysis of Growth, Invasion, Angiogenesis and Gene Expression
    282 ONCOLOGY REPORTS 43: 282-295, 2020 Anticancer effects of NSC‑631570 (Ukrain) in head and neck cancer cells: In vitro analysis of growth, invasion, angiogenesis and gene expression RUTH HERRMANN1, JOSEPH SKAF2, JEANETTE ROLLER1, CHRISTINE POLEDNIK1, ULRIKE HOLZGRABE2 and MARIANNE SCHMIDT1 1Department of Otorhinolaryngology, University of Würzburg, D-97080 Würzburg; 2Institute of Pharmacy and Food Chemistry, University of Würzburg, D-97074 Würzburg, Germany Received September 17, 2018; Accepted September 30, 2019 DOI: 10.3892/or.2019.7416 Abstract. NSC-631570 (Ukrain) is an aqueous extract of laminin). Microarray analysis revealed the downregulation of Chelidonium majus, a herbaceous perennial plant, one of two genes encoding key regulators, including EGFR, AKT2, JAK1, species in the genus Chelidonium, which has been demonstrated STAT3 and ß-catenin (CTNNB1), all of which are involved in to selectively kill tumor cells without affecting non-malignant cell proliferation, migration, angiogenesis, apoptosis as well as cells. In the present study, the components of NSC-631570 the radiation- and chemo-resistance of HNSCC. The strongest were examined by combined liquid chromatography/mass upregulation occurred for cytochrome P450 1A1 (CYP1A1) spectroscopy (LC-MS) and the effects of NSC-631570 on and 1B1 (CYP1B1), involved in the metabolism of xenobiotics. HNSCC cell lines, as well as primary cells, were analyzed Upregulation of CYP1A1 was at least partially caused by chel- with respect to growth, apoptosis, invasion, angiogenesis erythrine and allocryptopine, as shown by RT-qPCR in two and gene expression. LC-MS identified chelerythrine and HNSCC cell lines. In addition, NSC-631570 showed a high allocryptopine as the major alkaloids of the extract.
    [Show full text]
  • Determining HDAC8 Substrate Specificity by Noah Ariel Wolfson A
    Determining HDAC8 substrate specificity by Noah Ariel Wolfson A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Biological Chemistry) in the University of Michigan 2014 Doctoral Committee: Professor Carol A. Fierke, Chair Professor Robert S. Fuller Professor Anna K. Mapp Associate Professor Patrick J. O’Brien Associate Professor Raymond C. Trievel Dedication My thesis is dedicated to all my family, mentors, and friends who made getting to this point possible. ii Table of Contents Dedication ....................................................................................................................................... ii List of Figures .............................................................................................................................. viii List of Tables .................................................................................................................................. x List of Appendices ......................................................................................................................... xi Abstract ......................................................................................................................................... xii Chapter 1 HDAC8 substrates: Histones and beyond ...................................................................... 1 Overview ..................................................................................................................................... 1 HDAC introduction
    [Show full text]
  • Applications of Microfluidic Chips in Optical Manipulation Photoporation
    APPLICATIONS OF MICROFLUIDIC CHIPS IN OPTICAL MANIPULATION & PHOTOPORATION Robert Frank Marchington A Thesis Submitted for the Degree of PhD at the University of St. Andrews 2010 Full metadata for this item is available in Research@StAndrews:FullText at: https://research-repository.st-andrews.ac.uk/ Please use this identifier to cite or link to this item: http://hdl.handle.net/10023/1633 This item is protected by original copyright Applications of Microfluidic Chips in Optical Manipulation & Photoporation Robert Frank Marchington A thesis presented for the degree of Doctor of Philosophy Optical Trapping & Microphotonics Groups School of Physics & Astronomy University of St Andrews June 2010 Dedicated to Mum & Mike Joe & Xanthoula Applications of Microfluidic Chips in Optical Manipulation and Photoporation Robert Frank Marchington Submitted for the degree of Doctor of Philosophy June 2010 Abstract Integration and miniaturisation in electronics has undoubtedly revolutionised the modern world. In biotechnology, emerging lab-on-a-chip (LOC) methodologies pro- mise all-integrated laboratory processes, to perform complete biochemical or medical synthesis and analysis encapsulated on small microchips. The integration of electri- cal, optical and physical sensors, and control devices, with fluid handling, is creating a new class of functional chip-based systems. Scaled down onto a chip, reagent and sample consumption is reduced, point-of-care or in-the-field usage is enabled through portability, costs are reduced, automation increases the ease of use, and favourable scaling laws can be exploited, such as improved fluid control. The capacity to mani- pulate single cells on-chip has applications across the life sciences, in biotechnology, pharmacology, medical diagnostics and drug discovery.
    [Show full text]
  • Transcriptional Analysis of Sodium Valproate in a Serotonergic Cell Line Reveals Gene Regulation Through Both HDAC Inhibition-Dependent and Independent Mechanisms
    bioRxiv preprint doi: https://doi.org/10.1101/837732; this version posted November 12, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Transcriptional analysis of sodium valproate in a serotonergic cell line reveals gene regulation through both HDAC inhibition-dependent and independent mechanisms Priyanka Sinha1,2, Simone Cree1,2, Allison L. Miller1,2, John F. Pearson1,2,3, Martin A. Kennedy1,2. 1Gene Structure and Function Laboratory, Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand. 2Carney Centre for Pharmacogenomics, University of Otago, Christchurch, New Zealand. 3Biostatistics and Computational Biology Unit, University of Otago, Christchurch, New Zealand. Correspondence to: Prof. M. A. Kennedy Department of Pathology and Biomedical Science University of Otago, Christchurch Christchurch, New Zealand Email: [email protected] Keywords: RNA-Seq, NanoString, lithium, valproate, HDAC inhibitor, mood stabilizer 1 bioRxiv preprint doi: https://doi.org/10.1101/837732; this version posted November 12, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Abstract Sodium valproate (VPA) is a histone deacetylase (HDAC) inhibitor, widely prescribed in the treatment of bipolar disorder, and yet the precise modes of therapeutic action for this drug are not fully understood.
    [Show full text]
  • Supplementary Table S4. FGA Co-Expressed Gene List in LUAD
    Supplementary Table S4. FGA co-expressed gene list in LUAD tumors Symbol R Locus Description FGG 0.919 4q28 fibrinogen gamma chain FGL1 0.635 8p22 fibrinogen-like 1 SLC7A2 0.536 8p22 solute carrier family 7 (cationic amino acid transporter, y+ system), member 2 DUSP4 0.521 8p12-p11 dual specificity phosphatase 4 HAL 0.51 12q22-q24.1histidine ammonia-lyase PDE4D 0.499 5q12 phosphodiesterase 4D, cAMP-specific FURIN 0.497 15q26.1 furin (paired basic amino acid cleaving enzyme) CPS1 0.49 2q35 carbamoyl-phosphate synthase 1, mitochondrial TESC 0.478 12q24.22 tescalcin INHA 0.465 2q35 inhibin, alpha S100P 0.461 4p16 S100 calcium binding protein P VPS37A 0.447 8p22 vacuolar protein sorting 37 homolog A (S. cerevisiae) SLC16A14 0.447 2q36.3 solute carrier family 16, member 14 PPARGC1A 0.443 4p15.1 peroxisome proliferator-activated receptor gamma, coactivator 1 alpha SIK1 0.435 21q22.3 salt-inducible kinase 1 IRS2 0.434 13q34 insulin receptor substrate 2 RND1 0.433 12q12 Rho family GTPase 1 HGD 0.433 3q13.33 homogentisate 1,2-dioxygenase PTP4A1 0.432 6q12 protein tyrosine phosphatase type IVA, member 1 C8orf4 0.428 8p11.2 chromosome 8 open reading frame 4 DDC 0.427 7p12.2 dopa decarboxylase (aromatic L-amino acid decarboxylase) TACC2 0.427 10q26 transforming, acidic coiled-coil containing protein 2 MUC13 0.422 3q21.2 mucin 13, cell surface associated C5 0.412 9q33-q34 complement component 5 NR4A2 0.412 2q22-q23 nuclear receptor subfamily 4, group A, member 2 EYS 0.411 6q12 eyes shut homolog (Drosophila) GPX2 0.406 14q24.1 glutathione peroxidase
    [Show full text]
  • Molecular Cloning: a Laboratory Manual, 4Th Edition
    This is a free sample of content from Molecular Cloning: A Laboratory Manual, 4th edition. Click here for more information or to buy the book. VOLUME 1 Molecular Cloning A LABORATORY MANUAL FOURTH EDITION © 2012 by Cold Spring Harbor Laboratory Press This is a free sample of content from Molecular Cloning: A Laboratory Manual, 4th edition. Click here for more information or to buy the book. OTHER TITLES FROM CSHL PRESS LABORATORY MANUALS Antibodies: A Laboratory Manual Imaging: A Laboratory Manual Live Cell Imaging: A Laboratory Manual, 2nd Edition Manipulating the Mouse Embryo: A Laboratory Manual, 3rd Edition RNA: A Laboratory Manual HANDBOOKS Lab Math: A Handbook of Measurements, Calculations, and Other Quantitative Skills for Use at the Bench Lab Ref, Volume 1: A Handbook of Recipes, Reagents, and Other Reference Tools for Use at the Bench Lab Ref, Volume 2: A Handbook of Recipes, Reagents, and Other Reference Tools for Use at the Bench Statistics at the Bench: A Step-by-Step Handbook for Biologists WEBSITES Molecular Cloning, A Laboratory Manual, 4th Edition, www.molecularcloning.org Cold Spring Harbor Protocols, www.cshprotocols.org © 2012 by Cold Spring Harbor Laboratory Press This is a free sample of content from Molecular Cloning: A Laboratory Manual, 4th edition. Click here for more information or to buy the book. VOLUME 1 Molecular Cloning A LABORATORY MANUAL FOURTH EDITION Michael R. Green Howard Hughes Medical Institute Programs in Gene Function and Expression and in Molecular Medicine University of Massachusetts Medical School Joseph Sambrook Peter MacCallum Cancer Centre and the Peter MacCallum Department of Oncology The University of Melbourne, Australia COLD SPRING HARBOR LABORATORY PRESS Cold Spring Harbor, New York † www.cshlpress.org © 2012 by Cold Spring Harbor Laboratory Press This is a free sample of content from Molecular Cloning: A Laboratory Manual, 4th edition.
    [Show full text]
  • Epigenetic Regulation of Normal and Malignant Hematopoiesis
    Oncogene (2007) 26, 6697–6714 & 2007 Nature Publishing Group All rights reserved 0950-9232/07 $30.00 www.nature.com/onc REVIEW Epigenetic regulation of normal and malignant hematopoiesis KL Rice, I Hormaeche and JD Licht Division of Hematology/Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA The molecular processes governing hematopoiesis involve the binding of sequence-specific transcription factors to the interplay between lineage-specific transcription factors target gene promoters and enhancers.These factors flag and a series of epigenetic tags, including DNA methyla- thoseregionsofthegenomedestinedtobetranscribedinto tion and covalent histone tail modifications, such as RNA, and work in part by recruitment of basal acetylation, methylation, phosphorylation, SUMOylation transcription factors and RNA polymerase II to target and ubiquitylation. These post-translational modifica- genes.Sequence-specific DNA-binding factors also recruit tions, which collectively constitute the ‘histone code’, are cofactors to gene regulatory regions, many of which are capable of affecting chromatin structure and gene part of multiprotein enzymatic complexes which facilitate transcription and are catalysed by opposing families of or inhibit gene transcription by modification of chromatin, enzymes, allowing the developmental potential of hema- the protein-bound state of DNA present in the cell topoietic stem cells to be dynamically regulated. The (Bottardi et al., 2007). Modulation of gene expression by essential role of these enzymes in regulating normal blood chromatin modification is termed ‘epigenetic’ regulation, development is highlighted by the finding that members and refers to stable and heritable changes in gene from all families of chromatin regulators are targets for expression that do not involve DNA sequence alterations.
    [Show full text]
  • Design and Synthesis of Novel Classes of Hdacs and Kmts Inhibitors
    University of East Anglia School of Pharmacy Design and synthesis of novel classes of HDACs and KMTs inhibitors by Remy Thomas Narozny Supervisor: Prof. A. Ganesan Second Supervisor: Prof. Mark Searcey Thesis for the degree of Doctor of Philosophy November 2018 This copy of the thesis has been supplied on condition that anyone who consults it is understood to recognise that its copyright rests with the author and that use of any information derived therefrom must be in accordance with current UK Copyright Law. In addition, any quotation or extract must include full attribution. “Your genetics is not your destiny.” George McDonald Church Abstract For long, scientists thought that our body was driven only by our genetic code that we inherited at birth. However, this determinism was shattered entirely and proven as false in the second half of the 21st century with the discovery of epigenetics. Instead, cells turn genes on and off using reversible chemical marks. With the tremendous progression of epigenetic science, it is now believed that we have a certain power over the expression of our genetic traits. Over the years, these epigenetic modifications were found to be at the core of how diseases alter healthy cells, and environmental factors and lifestyle were identified as top influencers. Epigenetic dysregulation has been observed in every major domain of medicine, with a reported implication in cancer development, neurodegenerative pathologies, diabetes, infectious disease and even obesity. Substantially, an epigenetic component is expected to be involved in every human disease. Hence, the modulation of these epigenetics mechanisms has emerged as a therapeutic strategy.
    [Show full text]
  • 4-Phenylthiobutanoic Acid Inhibits Histone Deacetylase 8 to Enhance Post-Acute Kidney Injury Repair
    Title Page Slow and Steady: 4-Phenylthiobutanoic Acid Inhibits Histone Deacetylase 8 to Enhance Post-Acute Kidney Injury Repair by Hwa In Han B.S., College of William & Mary, 2014 Submitted to the Graduate Faculty of the School of Medicine in partial fulfillment of the requirements for the degree of Doctor of Philosophy University of Pittsburgh 2020 Committee Page UNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE This dissertation was presented by Hwa In Han It was defended on May 29, 2020 and approved by Jacqueline Ho, M.D., Department of Pediatric Nephrology Penelope Morel, M.D., Department of Immunology Kyle Orwig, Ph.D., Department of Obstetrics, Gynecology & Reproductive Services Michael Tsang, Ph.D., Department of Developmental Biology Dissertation Director: Neil Hukriede, Ph.D., Department of Developmental Biology ii Copyright © by Hwa In Han 2020 iii Abstract Slow and Steady: 4-Phenylthiobutanoic Acid Inhibits Histone Deacetylase 8 to Enhance Post-Acute Kidney Injury Repair Hwa In Han, PhD University of Pittsburgh, 2020 Acute kidney injury (AKI) is a rapid decline in kidney function that is associated with high mortality and morbidity rates, affecting 1 in 5 adults worldwide 1. While damaged renal tubular epithelial cells (RTECs) undergo reparative process to proliferate and replace the damaged epithelium, it is not a robust mechanism. The initial damage is followed by a cross-talk of innate immune system and RTECs resulting in exacerbation of inflammation, fibrosis, and sometimes irreversible damage. Despite the prevalence and severity of AKI, no FDA approved therapeutics exist to replace damaged or lost RTECS. Therefore, it is imperative to screen, identify, and understand mechanisms with which candidate therapeutics can enhance repair.
    [Show full text]
  • Structure and Function of Metallohydrolases in the Arginase- Deacetylase Family
    University of Pennsylvania ScholarlyCommons Publicly Accessible Penn Dissertations 2016 Structure and Function of Metallohydrolases in the Arginase- Deacetylase Family Yang Hai University of Pennsylvania, [email protected] Follow this and additional works at: https://repository.upenn.edu/edissertations Part of the Biochemistry Commons Recommended Citation Hai, Yang, "Structure and Function of Metallohydrolases in the Arginase-Deacetylase Family" (2016). Publicly Accessible Penn Dissertations. 1753. https://repository.upenn.edu/edissertations/1753 This paper is posted at ScholarlyCommons. https://repository.upenn.edu/edissertations/1753 For more information, please contact [email protected]. Structure and Function of Metallohydrolases in the Arginase-Deacetylase Family Abstract Arginases and deacetylases are metallohydrolases that catalyze two distinct chemical transformations. The arginases catalyze the hydrolysis of the guanidinium group of arginine by using a hydroxide ion 2+ 2+ bridging the binuclear manganese cluster (Mn A-Mn B) for nucleophilic attack. The deacetylases catalyze the hydrolysis of amide bonds by using a mononuclear Zn2+-ion activated water molecule as the nucleophile. Despite the diverse functions, metallohydrolases of the arginase-deacetylase superfamily 2+ share the same characteristic α/β hydrolase core fold and a conserved metal binding site (the Mn B site in arginase corresponds to the catalytic Zn2+ site in deacetylase) which is essential for catalysis in both enzymes. We report crystal structure of formiminoglutamase from the parasitic protozoan Trypanosoma cruzi and confirm that formiminoglutamase is a Mn2+-requiring hydrolase that belongs to the arginase- deacetylase superfamily. We also report the crystal structure of an arginase-like protein from Trypanosoma brucei (TbARG) with unknown function. Although its biological role remains enigmatic, the 2+ evolutionarily more conserved Mn B site can be readily restored in TbARG through side-directed mutagenesis.
    [Show full text]