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(12) United States Patent (10) Patent No.: US 8,877,688 B2 Vasquez Et Al
US008877688B2 (12) United States Patent (10) Patent No.: US 8,877,688 B2 Vasquez et al. (45) Date of Patent: *Nov. 4, 2014 (54) RATIONALLY DESIGNED, SYNTHETIC (56) References Cited ANTIBODY LIBRARIES AND USES THEREFOR U.S. PATENT DOCUMENTS 4.946,778 A 8, 1990 Ladner et al. (75) Inventors: Maximiliano Vasquez, Palo Alto, CA 5,118,605 A 6/1992 Urdea (US); Michael Feldhaus, Grantham, NH 5,223,409 A 6/1993 Ladner et al. 5,283,173 A 2f1994 Fields et al. (US); Tillman U. Gerngross, Hanover, 5,380,833. A 1, 1995 Urdea NH (US); K. Dane Wittrup, Chestnut 5,525.490 A 6/1996 Erickson et al. Hill, MA (US) 5,530,101 A 6/1996 Queen et al. 5,565,332 A 10/1996 Hoogenboom et al. (73) Assignee: Adimab, LLC, Lebanon, NH (US) 5,571,698 A 11/1996 Ladner et al. 5,618,920 A 4/1997 Robinson et al. (*) Notice: Subject to any disclaimer, the term of this 5,658,727 A 8, 1997 Barbas et al. patent is extended or adjusted under 35 (Continued) U.S.C. 154(b) by 747 days. FOREIGN PATENT DOCUMENTS This patent is Subject to a terminal dis claimer. DE 19624562 A1 1, 1998 WO WO-88.01649 A1 3, 1988 (21) Appl. No.: 12/404,059 (Continued) OTHER PUBLICATIONS (22) Filed: Mar 13, 2009 Rader et al. (Jul. 21, 1998) Proceedings of the National Academy of (65) Prior Publication Data Sciences USA vol. 95 pp. 8910 to 8915.* US 201O/OO5638.6 A1 Mar. 4, 2010 (Continued) Primary Examiner — Heather Calamita Related U.S. -
Phage Display Libraries for Antibody Therapeutic Discovery and Development
antibodies Review Phage Display Libraries for Antibody Therapeutic Discovery and Development Juan C. Almagro 1,2,* , Martha Pedraza-Escalona 3, Hugo Iván Arrieta 3 and Sonia Mayra Pérez-Tapia 3 1 GlobalBio, Inc., 320, Cambridge, MA 02138, USA 2 UDIBI, ENCB, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, Colonia Casco de Santo Tomas, Delegación Miguel Hidalgo, Ciudad de Mexico 11340, Mexico 3 CONACyT-UDIBI, ENCB, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, Colonia Casco de Santo Tomas, Delegación Miguel Hidalgo, Ciudad de Mexico 11340, Mexico * Correspondence: [email protected] Received: 24 June 2019; Accepted: 15 August 2019; Published: 23 August 2019 Abstract: Phage display technology has played a key role in the remarkable progress of discovering and optimizing antibodies for diverse applications, particularly antibody-based drugs. This technology was initially developed by George Smith in the mid-1980s and applied by John McCafferty and Gregory Winter to antibody engineering at the beginning of 1990s. Here, we compare nine phage display antibody libraries published in the last decade, which represent the state of the art in the discovery and development of therapeutic antibodies using phage display. We first discuss the quality of the libraries and the diverse types of antibody repertoires used as substrates to build the libraries, i.e., naïve, synthetic, and semisynthetic. Second, we review the performance of the libraries in terms of the number of positive clones per panning, hit rate, affinity, and developability of the selected antibodies. Finally, we highlight current opportunities and challenges pertaining to phage display platforms and related display technologies. -
Fig. 1C Combination Therapy of Tumor Targeted ICOS Agonists with T-Cell Bispecific Molecules
( (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every C07K 16/30 (2006.01) A61P 35/00 (2006.01) kind of national protection av ailable) . AE, AG, AL, AM, C07K 16/28 (2006.01) A 6IK 39/00 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, C07K 16/40 (2006.01) CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (21) International Application Number: HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, PCT/EP20 18/086046 KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, (22) International Filing Date: MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 20 December 2018 (20. 12.2018) OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, (25) Filing Language: English TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (26) Publication Language: English (84) Designated States (unless otherwise indicated, for every (30) Priority Data: kind of regional protection available) . ARIPO (BW, GH, 17209444.3 2 1 December 2017 (21. 12.2017) EP GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, (71) Applicant (for all designated States except US): F. HOFF- TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, MANN-LA ROCHE AG [CH/CH]; Grenzacherstrasse EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, 124, 4070 Basel (CH). -
The Generation of Synthetic Antibody Reagents for Clostridium Difficile Toxins
The Generation of Synthetic Antibody Reagents for Clostridium difficile Toxins by Sylvia Cien Man Wong A thesis submitted in conformity with the requirements for the degree of Master of Science Graduate Department of Molecular Genetics University of Toronto © Copyright by Sylvia Wong 2013 The Generation of Synthetic Antibody Reagents for Clostridium difficile Toxins Sylvia Cien Man Wong Master of Science Graduate Department of Molecular Genetics University of Toronto 2013 Abstract The symptoms of C. difficile infection are primarily caused by two toxins, toxin A and toxin B. Some strains produce a third known toxin, C. difficile transferase (CDT) toxin; however, its role in virulence remains unclear. I aimed to develop synthetic antibodies using phage display technology to block toxin entry by binding to the receptor-binding domain (RBD) of the toxins. I first described the generation of anti-toxin A and anti-toxin B Fabs. I presented Fab A3, which bound to the full-length toxin, but did not functionally inhibit toxin entry. In chapter 2, I described the generation of novel anti-CDTb antibodies. I further demonstrated that five of the anti-CDTb antibodies could functionally inhibit CDTb binding in an ELISA-based assay and on cultured cells. These antibodies can be used as tools to understand the toxins’ role in human disease and potentially be used as therapeutics. ii Acknowledgments I am very thankful for having the chance to work with many great scientists in Dr. Jason Moffat’s and Dr. Sachdev Sidhu’s labs. These people made the lab a very motivating, supportive, and intellectually stimulating environment, where I was able to learn and expand my critical thinking skills. -
Phagemid-Based Method of Producing Filamentous Bacteriophage Particles Displaying Antibody Molecules and the Corresponding Bacteriophage Particles
Europäisches Patentamt *EP001433846A2* (19) European Patent Office Office européen des brevets (11) EP 1 433 846 A2 (12) EUROPEAN PATENT APPLICATION (43) Date of publication: (51) Int Cl.7: C12N 15/10, C07K 16/00, 30.06.2004 Bulletin 2004/27 C12N 15/62, C12N 7/00, C12N 15/73 (21) Application number: 04005419.9 (22) Date of filing: 10.07.1991 (84) Designated Contracting States: • Griffiths, Andrew David AT BE CH DE DK ES FR GB GR IT LI LU NL SE Cambridge CB1 4AY (GB) • Jackson, Ronald Henry (30) Priority: 10.07.1990 GB 9015198 Cambridge CB1 2NU (GB) 19.10.1990 GB 9022845 • Holliger, Kaspar Philipp 12.11.1990 GB 9024503 Cambridge CB1 4HT (GB) 06.03.1991 GB 9104744 • Marks, James David 15.05.1991 GB 9110549 Kensington, CA 94707-1310 (US) • Clackson, Timothy Piers (62) Document number(s) of the earlier application(s) in Somerville, MA 02143 (US) accordance with Art. 76 EPC: • Chiswell, David John 97120149.6 / 0 844 306 Buckingham MK18 2LD (GB) 96112510.1 / 0 774 511 • Winter, Gregory Paul Cambridge CB2 1TQ (GB) (71) Applicants: • Bonnert, Timothy Peter • Cambridge Antibody Technology LTD Seattle, WA 98102 (US) Cambridge CB1 6GH (GB) • Medical Research Council (74) Representative: Walton, Seán Malcolm et al London W1B 1AL (GB) Mewburn Ellis LLP York House, (72) Inventors: 23 Kingsway • McCafferty, John London WC2B 6HP (GB) Babraham CB2 4AP (GB) • Pope, Anthony Richard Remarks: Cambridge CB1 2LW (GB) This application was filed on 08 - 03 - 2004 as a • Johnson, Kevin Stuart divisional application to the application mentioned Highfields, Cambridge CB3 7NY (GB) under INID code 62. -
Wo 2008/048970 A2
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date (10) International Publication Number 24 April 2008 (24.04.2008) PCT WO 2008/048970 A2 (51) International Patent Classification: (72) Inventors; and A61K 39/395 (2006 01) (75) Inventors/Applicants (for US only): JOHNSTON, Stephen, Albert [US/US], 8606 S Dorsey Lane, Tempe, (21) International Application Number: AZ 85284 (US) WOODBURY, Neal [US/US], 1001 S PCT/US2007/081536 McAllister Avenue, Tempe, AZ 85287 (US) CHAPUT, John, C. [US/US], 3069 E Dry Creed Road, Phoenix, AZ (22) International Filing Date: 16 October 2007 (16 10 2007) 85048 (US) DIEHNELT, Chris, W. [US/US], 20941 N Leona Boulevard, Maπ copa, AZ 85239 (US) YAN, Hao (25) Filing Language: English [CN/US], 1300 N Brentwood Place, Chandler, AZ 85224 (26) Publication Language: English (US) (74) Agent: LIEBESCHUETZ, Joe, Townsend and Townsend (30) Priority Data: and Crew LLP , 8th floor, Two Embarcadero Center, San 60/852,040 16 October 2006 (16 10 2006) US Francisco, CA 941 11-3834 (US) 60/975,442 26 September 2007 (26 09 2007) US (81) Designated States (unless otherwise indicated, for every (71) Applicant (for all designated States except US): THE kind of national protection available): AE, AG, AL, AM, ARIZONA BOARD OF REGENTS, A BODY COR¬ AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, PORATE OF THE STATE OF ARIZONA acting for CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, and on behalf -
Antibody Discovery for Development of a Serotyping Dengue Virus NS1 Capture Assay
Antibody Discovery for Development of a Serotyping Dengue Virus NS1 Capture Assay Kebaneilwe Lebani Master of Biotechnology (Advanced) A thesis submitted for the degree of Doctor of Philosophy at The University of Queensland in 2014 Australian Institute for Bioengineering and Nanotechnology ABSTRACT Dengue virus (DENV) infections are a significant public health burden in tropical and sub-tropical regions of the world. Infections are caused by four different but antigenically related viruses which result in four DENV serotypes. The multifaceted nature of DENV pathogenesis hinders the sensitivity of assays designed for the diagnosis of infection. Different markers can be optimally detected at different stages of infection. Of particular clinical importance is the identification of acute viremia during the febrile phase of infection which is pivotal for management of infection. Non-structural protein 1 (NS1) has been identified as a good early surrogate marker of infection with possible applications in epidemiological surveillance and the development of blood screening assays. This contribution is towards using serotype-specificity to achieve specific and more sensitive diagnostic detection of DENV NS1. The general aim of this work is to isolate immune-reagents that can be used to develop an assay with improved sensitivity of DENV NS1 detection in a diagnostic setting. In this work, we sought to isolate serotype-specific antibodies that discern discreet antigenic differences in NS1 from each DENV serotype. Additionally, we also sought to isolate a pairing antibody that recognises NS1 from all four DENV serotypes (pan-reactive) for tandem capture of the DENV NS1. To achieve this, three naive, immunoglobulin gene libraries (a VH domain, a scFv and a Fab library) were interrogated for binders to recombinant NS1 antigen from all four DENV serotypes using phage display technology and various biopanning approaches. -
Computational Design of Peptide Ligands Based on Antibody-Antigen Interface Properties
Computational design of peptide ligands based on antibody-antigen interface properties By Benjamin Thomas VIART Thesis Advisor Prof. Dra. Liza Figueiredo Felicori Vilela Thesis Co-advisor Dr. Franck Molina Universidade Federal de Minas Gerais Instituto de Ciências Biológicas Programa de Pós-Graduação em Bioinformática Avenida Presidente Antônio Carlos, 6627 Pampulha 31270-901 Belo Horizonte - MG To my parents, ii Acknowledgments • Firstly, I would like to express my sincere gratitude to my advisor Dr. Prof. Liza Figueiredo Felicori Vilela for the continuous support of my Ph.D study, for her patience, motivation and knowledge. Her advices and guidance helped me better understand the scientific gait, the rules of research, the importance of the details. I would like to thank her as well for making feel welcome in Brazil, helping me with the transition to this new culture that is now part of me as the French culture is part of her. • Secondly, I would like to deeply thank my co-advisor Dr Franck Molina, without whom I would never have done this PhD. I am forever grateful to him for believing in me and helping me achieve this goal. • From the department, I would like to thanks Prof. Jader, Prof. Vasco, Prof. Miguel, Prof. Lucas, Prof. Gloria as well as Sheila. • This thesis is dedicated to my parents, Frédéric and Françoise Viart, who helped me throughout my life to become a good person. I thank them for their unconditional love and support. • I would like to thank all my family, especially my sisters, Sophie and Lisa, for their smiles and grimaces; my grand-parents, Bob, Nanou and Mémé for their support and love and also my uncle, Bruno, for all his help when I was in first year of medical school. -
International Patent Classification: KR, KW, KZ, LA, LC, LK, LR, LS, LU
( 2 (51) International Patent Classification: DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, A61K 39/42 (2006.01) C07K 16/10 (2006.01) HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, C07K 16/08 (2006.01) KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, (21) International Application Number: OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, PCT/US20 19/033 995 SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, (22) International Filing Date: TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. 24 May 2019 (24.05.2019) (84) Designated States (unless otherwise indicated, for every (25) Filing Language: English kind of regional protection available) . ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (26) Publication Language: English UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, (30) Priority Data: TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 62/676,045 24 May 2018 (24.05.2018) US 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, (71) Applicant: LANKENAU INSTITUTE FOR MEDICAL TR), OAPI (BF, BJ, CF, CG, Cl, CM, GA, GN, GQ, GW, RESEARCH [US/US]; 100 Lancaster Avenue, Wyn- KM, ML, MR, NE, SN, TD, TG). -
Nanobodies and Recombinant Binders in Cell Biology
JCB: Review Nanobodies and recombinant binders in cell biology Jonas Helma,1 M. Cristina Cardoso,2 Serge Muyldermans,3 and Heinrich Leonhardt1 1Department of Biology II, Ludwig Maximilians University Munich and Center for Integrated Protein Science Munich, 82152 Planegg-Martinsried, Germany 2Department of Biology, Technical University of Darmstadt, 64287 Darmstadt, Germany 3Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium Antibodies are key reagents to investigate cellular pro- exclusive to small and stable binding molecules and cannot cesses. The development of recombinant antibodies and be performed easily with full-length antibodies, as a result of crucial inter- and intramolecular disulphide bridges that do not binders derived from natural protein scaffolds has ex- form in the cytoplasm. Thus, researchers have found a plethora panded traditional applications, such as immunofluores- of new applications in which binders have been combined with cence, binding arrays, and immunoprecipitation. In enzymatic or structural functionalities in living systems. addition, their small size and high stability in ectopic en- The development of in vitro screening techniques has been a decisive step for the rise and generation of recombinant vironments have enabled their use in all areas of cell re- binding reagents. These methods include classic phage display Downloaded from search, including structural biology, advanced microscopy, but also bacterial and yeast display as well as ribosomal and and intracellular expression. Understanding these novel mRNA display. With such in vitro display techniques at hand, directed evolution strategies and genetic manipulation of binder reagents as genetic modules that can be integrated into sequences allow targeted engineering of key features, such as cellular pathways opens up a broad experimental spec- specificity, valence, affinity, and stability, enable derivatization trum to monitor and manipulate cellular processes. -
Affinity Chromatography (AC)
Affinity Chromatography (AC) 1 Affinity Chromatography (AC) • Principles of AC • Main stages in Chromatography • How to prepare Affinity gel - Ligand Immobilization - Spacer arms – Coupling methods – Coupling tips • Types of AC • Elution Conditions • Binding equilibrium, competitive elution, kinetics • Industrial Examples: Protein A/G for Therapeutic proteins • Future Considerations 2 What is affinity chromatography? Affinity chromatography is a technique of liquid chromatography which separates molecules through biospecific interactions. The molecule to be purified is specifically and reversibly adsorbed to a specific ligand The ligand is immobilized to an insoluble support (“matrix”): resin, “chip”, Elisa plate, membrane, Western, IP (immuneprecipitation), etc Introduction of a “spacer arm” between the ligand and the matrix to improve binding Elution of the bound target molecule a) non specific or b) specific elution method 3 What is it used for? Monoclonal and polyclonal antibodies Fusion proteins Enzymes DNA-binding proteins . ANY protein where we have a binding partner!! 4 Designing and preparing an affinity gel Choosing the matrix Designing the ligand - Spacer arms Coupling methods 5 Ligand Immobilization Ligand + Activating agent + Matrix Activated Immobilised matrix ligand 6 Designing the ligand Essential ligand properties: interacts selectively and reversibly with the target Carries groups which can couple it to the matrix without losing its binding activity Available in a pure form 7 Steric considerations & spacer arms Small ligand (<1,000) Risk of steric interference with binding between matrix and target molecule Often need spacer arm but watch out for Spacer arm adsorption to the spacer! 8 Design of spacer arms Alkyl chain Real risk of unspecific interactions between H H spacer and target molecule O O Hydrophilic chain Risk of unspecific interactions greatly O H reduced No coupling reaction will use 100% of the available binding sites. -
EURL ECVAM Recommendation on Non-Animal-Derived Antibodies
EURL ECVAM Recommendation on Non-Animal-Derived Antibodies EUR 30185 EN Joint Research Centre This publication is a Science for Policy report by the Joint Research Centre (JRC), the European Commission’s science and knowledge service. It aims to provide evidence-based scientific support to the European policymaking process. The scientific output expressed does not imply a policy position of the European Commission. Neither the European Commission nor any person acting on behalf of the Commission is responsible for the use that might be made of this publication. For information on the methodology and quality underlying the data used in this publication for which the source is neither Eurostat nor other Commission services, users should contact the referenced source. EURL ECVAM Recommendations The aim of a EURL ECVAM Recommendation is to provide the views of the EU Reference Laboratory for alternatives to animal testing (EURL ECVAM) on the scientific validity of alternative test methods, to advise on possible applications and implications, and to suggest follow-up activities to promote alternative methods and address knowledge gaps. During the development of its Recommendation, EURL ECVAM typically mandates the EURL ECVAM Scientific Advisory Committee (ESAC) to carry out an independent scientific peer review which is communicated as an ESAC Opinion and Working Group report. In addition, EURL ECVAM consults with other Commission services, EURL ECVAM’s advisory body for Preliminary Assessment of Regulatory Relevance (PARERE), the EURL ECVAM Stakeholder Forum (ESTAF) and with partner organisations of the International Collaboration on Alternative Test Methods (ICATM). Contact information European Commission, Joint Research Centre (JRC), Chemical Safety and Alternative Methods Unit (F3) Address: via E.