Abstract: Antibodies directed to the antigen Ang-2 and uses of such antibodies are described. In particular, fully human monoclonal antibodies directed to the antigen Ang-2. Nucleotide sequences encoding, and amino acid sequences comprising, heavy and light chain immunoglobulin molecules, particularly sequences corresponding to contiguous heavy and light chain sequences spanning the framework regions and/or complementarity determining regions (CDR's), specifically from FR1 through FR4 or CDR1 through CDR3. Hybridomas or other cell lines expressing such immunoglobulin molecules and monoclonal antibodies.
Type:
Grant
Filed:
November 30, 2012
Date of Patent:
September 16, 2014
Assignee:
MedImmune Limited
Inventors:
Larry L. Green, Qing Zhou, Bruce A. Keyt, Xiao-Dong Yang, Stephen Charles Emery, David Charles Blakey
Abstract: This invention relates to the transient expression of heterologous polypeptides in mammalian cell lines. Specifically it relates to an expression-enhanced cell line derived from a parent cell line, the expression-enhanced cell line comprising nucleic acid encoding Epstein-Barr Virus Nuclear Antigen 1 or a functional derivative, analogue, or variant thereof; and further comprising: (a) a nucleic acid encoding an exogenous glutamine synthetase; (b) a nucleic acid encoding an endogenous glutamine synthetase, wherein the endogenous glutamine is arranged to have enhanced enzymatic activity and/or enhanced expression relative to the parent cell line under comparable conditions; or (c) both (a) and (b).
Abstract: The present invention provides molecules, including IgGs, non-IgG immunoglobulins, proteins and non-protein agents, that have increased in vivo half-lives due to the presence of an IgG constant domain, or a portion thereof that binds the FcRn, having one or more amino acid modifications that increase the affinity of the constant domain or fragment for FcRn. Such proteins and molecules with increased half-lives have the advantage that smaller amounts and or less frequent dosing is required in the therapeutic, prophylactic or diagnostic use of such molecules.
Type:
Grant
Filed:
May 20, 2013
Date of Patent:
August 5, 2014
Assignees:
MedImmune, LLC, Board of Regents, The University of Texas System
Inventors:
William Dall'Acqua, Leslie S. Johnson, Elizabeth Sally Ward Ober
Abstract: The invention relates to targeted binding agents against DLL4 and uses of such agents. More specifically, the invention relates to fully human monoclonal antibodies directed to DLL4. The described targeted binding agents are useful in the treatment of diseases associated with the activity and/or overproduction of DLL4 and as diagnostics.
Abstract: The present invention provides methods for the purification of cell-associated viruses from adherent cells (e.g., MDCK or Vero cells). In particular, the present invention provides purification methods for the production of immunogenic compositions comprising a live attenuated cell-associated virus (e.g., an attenuated respiratory syncytial virus (RSV) or cold-adapted, and/or temperature sensitive influenza virus) that result in levels of host cell DNA (HCD), host cell protein (HCP) and non-specific endonuclease (e.g., Benzonase), which are below the specifications required by regulatory agencies. The immunogenic compositions can be used to actively immunize subjects or to generate antibodies for a variety of uses, including passive immunization and diagnostic immunoassays.
Type:
Grant
Filed:
September 24, 2009
Date of Patent:
July 22, 2014
Assignee:
MedImmune, LLC
Inventors:
Mark Thompson, Janice Wee, Akanksha Nagpal
Abstract: Human monoclonal antibodies directed against B7-H1 and uses of these antibodies in diagnostics and for the treatment of diseases associated with the activity and/or expression of B7-H1 are disclosed. Additionally, hybridomas or other cell lines expressing such antibodies are disclosed.
Type:
Grant
Filed:
November 24, 2010
Date of Patent:
July 15, 2014
Assignee:
MedImmune, Limited
Inventors:
Christophe Queva, Michelle Morrow, Scott Hammond, Marat Alimzhanov, John Babcook, Ian Nevin Foltz, Jaspal Singh Kang, Laura Sekirov, Melanie Boyle, Matthieu Chodorge, Ross A. Stewart, Kathleen Ann Mulgrew
Abstract: Provided herein are crystalline forms of a human IgG Fc variant comprising triple-mutation M252Y/S254T/T256E that provides for increased binding affinity to human neonatal Fc receptor, methods of obtaining such crystals and high-resolution X-ray diffraction structures and atomic structure coordinates. Also provided are machine readable media embedded with the three-dimensional atomic structure coordinates of the human IgG Fc variant and methods of using them.
Type:
Grant
Filed:
December 10, 2009
Date of Patent:
July 8, 2014
Assignee:
MedImmune, LLC
Inventors:
Vaheh Oganesyan, William F. Dall'Acqua, Herren Wu
Abstract: The present invention relates to novel molecules (Fc variants) comprising at least one antigen binding region and an Fc region that further comprises a modified hinge which alters the binding of Fc to one or more Fc ligand (e.g., Fc?Rs) and/or modulates effector function. More specifically, this invention provides Fc variants that have modified binding affinity to one or more Fc?R and/or C1q. Additionally, the Fc variants have altered antibody-dependent cell-mediated cytotoxicity (ADCC) and/or complement dependent cytotoxicity (CDC) activity. The invention further provides methods and protocols for the application of said Fc variants particularly for therapeutic purposes.
Type:
Application
Filed:
February 17, 2014
Publication date:
June 19, 2014
Applicant:
MedImmune, LLC
Inventors:
William Dall'Acqua, Herren Wu, Melissa Damschroder, Jose Casas-Finet
Abstract: The present invention relates to formulations comprising sucrose, and methods of making such formulations, wherein the sucrose content promotes the reduction or elimination of the reversible self-association (RSA) tendency of the antibody in the formulation. The present invention also relates to formulations comprising an anti-PDGFR-alpha antibody or antibody fragment. Such antibodies can be used in various methods of treatment. The application further relates to a method of eliminating or reducing the RSA tendency of antibodies in a formulation.
Abstract: The present invention provides novel MDCK-derived adherent non-tumorigenic cell lines that can be grown in the presence or absence of serum. The cell lines of the present invention are useful for the production of vaccine material (e.g., viruses). More specifically, the cell lines of the present invention are useful for the production of influenza viruses in general and ca/ts influenza viruses in particular. The invention further provides methods and media formulations for the adaptation and cultivation of MDCK cells such that they remain non-tumorigenic. Additionally, the present invention provides methods for the production of vaccine material (e.g., influenza virus) in the novel cell lines of the invention.
Type:
Grant
Filed:
January 20, 2012
Date of Patent:
June 10, 2014
Assignee:
MedImmune, LLC
Inventors:
Richard Schwartz, John Michael Berry, Ajit Subramanian, Xiao Shi
Abstract: The present invention provides novel canine pol I regulatory nucleic acid sequences useful for the expression of nucleic acid sequences in canine cells such as MDCK cells. The invention further provides expression vectors and cells comprising such nucleic acids as well as methods of using such nucleic acids to make influenza viruses, including infectious influenza viruses.
Type:
Grant
Filed:
August 31, 2012
Date of Patent:
June 3, 2014
Assignee:
MedImmune, LLC
Inventors:
Gregory Duke, George Kemble, James Young, Zhaoti Wang
Abstract: This invention relates to binding members, especially antibody molecules, specific for interleukin 1 receptor 1 (IL-1R1). For example, isolated binding members specific for IL-1R1 which competes with IL-1 and IL-1Ra for binding to IL-1R1 and binds Il-1R1 with a KD of 10 pM or less when measured by Kinexa™. The binding members are useful for, inter alia, treatment of disorders mediated by IL-1R1 including rheumatoid arthritis, asthma and chronic obstructive pulmonary disease (COPD).
Type:
Grant
Filed:
September 14, 2012
Date of Patent:
June 3, 2014
Assignee:
Medimmune Limited
Inventors:
Jamie Iain Campbell, Duncan James Cochrane, Donna Kirsty Finch, Maria Anastasia Teresa Groves, David Christopher Lowe, Simon Charles Cruwys
Abstract: Vectors and methods for the production of influenza viruses suitable as recombinant influenza vaccines in cell culture are provided. Bi-directional expression vectors for use in a multi-plasmid influenza virus expression system are provided.
Type:
Grant
Filed:
August 19, 2011
Date of Patent:
May 13, 2014
Assignee:
MedImmune, LLC
Inventors:
Erich Hoffman, Hong Jin, Bin Lu, Greg Duke, George Kemble
Abstract: Provided is an isolated mammalian negative strand RNA virus, metapneumovirus (MPV). Described are isolated mammalian negative strand RNA viruses identifiable as phylogenetically corresponding or relating to the genus Metapneumovirus and components thereof. Also described is mammalian MPV, subgroups and variants thereof, and genomic nucleotide sequences of different isolates of mammalian metapneumoviruses, in particular human metapneumoviruses. The use of the sequence information of different isolates of mammalian metapneumoviruses for diagnostic and therapeutic methods is provided. Nucleotide sequences encoding the genome of a metapneumovirus or a portion thereof, including both mammalian and avian metapneumovirus are described. Also provided are chimeric or recombinant viruses encoded by said nucleotide sequences and chimeric and recombinant mammalian MPV that comprise one or more non-native or heterologous sequences.
Type:
Grant
Filed:
December 31, 2008
Date of Patent:
May 13, 2014
Assignees:
ViroNovative B.V., MedImmune Vaccines, Inc.
Inventors:
Ronaldus Adrianus Maria Fouchier, Bernadetta Gerarda Van Den Hoogen, Albertus Dominicus Marcellinus Erasmus Osterhaus, Aurelia Haller, Roderick Tang
Abstract: This invention relates to binding members, especially antibody molecules, for IgE. The binding members are useful for, inter alia, treatment of disorders mediated by IgE including allergies and asthma.
Abstract: Polypeptides, polynucleotides, methods, compositions, and vaccines comprising influenza hemagglutinin and neuraminidase variants are provided.
Abstract: Specific binding members directed to eotaxin-1, in particular human antibodies and antibody fragments against human eotaxin-1 and especially those which neutralize eotaxin-1 activity. The antibodies VH and/or VL domain of the scFv fragment herein termed CAT-212 and of the IgG4 antibody herein termed CAT 213. One or more complementary determining regions (CDRs) of the CAT-212-213 VH and/or VL domains, especially VH CRD3 in other antibody framework regions. Compositions containing specific binding members, and their use in methods of inhibiting or neutralizing eotaxin, including methods of treatment of the human or animal body by therapy.
Type:
Grant
Filed:
October 19, 2011
Date of Patent:
May 6, 2014
Assignee:
Medimmune Limited
Inventors:
Tristan John Vaughan, Alison Jane Wilton, Stephen Smith, Sarah Helen Main
Abstract: The present invention relates to methods and tools for producing large quantities of gamma-carboxylated protein comprising: (i) culturing a cell adapted to express a protein which requires gamma-carboxylation and ?-glutamyl carboxylase in a ratio of at least 10:1, under conditions suitable for expression of both proteins, and (ii) isolating gamma-carboxylated protein.
Type:
Grant
Filed:
November 19, 2010
Date of Patent:
April 15, 2014
Assignee:
Medimmune Limited
Inventors:
Christel Fenge, Ann Lövgren, Anders Thelin