Rodent Cell, Per Se Patents (Class 435/352)
  • Patent number: 12012611
    Abstract: A serum-free complete medium for inducing differentiation of a mesenchymal stem cell to a corneal epithelial cell in the field of differentiation induction of stem cells, prepared by the following method: uniformly mixing the serum-free complete medium, containing 5-10 ?mol of resveratrol, 2-4 ?mol of icariin, 1-3 nmol of aspirin, 1-3 nmol of parathyroid hormone, 5-10 nmol of hydrocortisone, 1-3 mg of rapamycin, 2-10 ?g of testosterone, 2-10 ?g of EPO, 2-10 ?g of LIF and the balance of a corneal epithelial cell serum-free medium in per 1 L; and then performing sterilization by filtration.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: June 18, 2024
    Assignee: QINGDAO RESTORE BIOTECHNOLOGY CO., LTD.
    Inventors: Bingqiang Zhang, Mengmeng Chen, Wei Zou, Xueqi Fu
  • Patent number: 11628187
    Abstract: A conditioned cell culture medium of cells derived from Spalax or naked mole rat (Heterocephalus glaber) and methods for preparing it are provided. Pharmaceutical compositions comprising the conditioned cell culture medium and its use in the treatment of cancer as well as methods for identifying anti-cancer agents are also provided.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: April 18, 2023
    Assignee: CARMEL-HAIFA UNIVERSITY ECONOMIC CORP. LTD.
    Inventors: Aaron Avivi, Imad Shams, Irena Manov
  • Patent number: 11447749
    Abstract: The application discloses a method for obtaining MSC-derived cells with improved transplantation properties from MSC, the method comprising a cell size reduction step, wherein said cell size reduction step is characterized by contacting MSC or MSC-derived cells in vitro or ex vivo with heparin or a derivative or analogue thereof at a concentration of at least 0.01 IU/ml. The application further provides a method for obtaining mesenchymal stem cell-derived cells from mesenchymal stem cells (MSC) comprising contacting MSC in vitro or ex vivo with FGF-2, TGF? and at least 0.01 IU/ml heparin or a derivative or analogue thereof. The invention also provides the so-obtained cells and cell populations, as well as further products comprising such and uses thereof.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: September 20, 2022
    Assignee: Bone Therapeutics S.A.
    Inventors: Sandra Pietri, Xuan Mai Nguyen, Enrico Bastianelli, Sabrina Ena, Pierre-Yves Laruelle, Isabelle Tytgat
  • Patent number: 10918671
    Abstract: The object of the present invention is to improve the post-transplantation engraftment rate of cardiomyocytes that have been purified to such an extent that they are free from non-cardiomyocytes and any components derived from other species. To solve this problem, the present inventors studied the possibility of constructing cell masses from the purified cardiomyocytes. As a result, they revealed that the stated problem could be solved by providing a method of preparing cell masses of cardiomyocytes derived from pluripotent stem cells, characterized in that cell masses of aggregated cells containing cardiomyocytes that had been differentiated and induced from pluripotent stem cells were dispersed to single cells to thereby obtain purified cardiomyocytes, which were then cultured in a culture medium under serum-free conditions so that they were reaggregated.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: February 16, 2021
    Assignees: DAIICHI SANKYO COMPANY, LIMITED, HEARTSEED INC.
    Inventors: Fumiyuki Hattori, Keiichi Fukuda
  • Patent number: 10179151
    Abstract: Disclosed herein is a method for manufacturing a population of human insulin producing cells from non-pancreatic ?-cells, wherein the resulting insulin producing cells have increased insulin content, or increased glucose regulated secretion of insulin, or a combination of both.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: January 15, 2019
    Assignees: ORGENESIS LTD., TEL HASHOMER MEDICAL RESEARCH INFRASTRUCTURE AND SERVICES LTD.
    Inventor: Sarah Ferber
  • Publication number: 20150150152
    Abstract: This invention relates to the field of biotechnology or genetic engineering. Specifically, this invention relates to the field of gene expression. More specifically, this invention relates to a novel ecdysone receptor/chimeric retinoid X receptor-based inducible gene expression system and methods of modulating gene expression in a host cell for applications such as gene therapy, large-scale production of proteins and antibodies, cell-based high throughput screening assays, functional genomics and regulation of traits in transgenic organisms.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Marianna Zinovievna KAPITSKAYA, Subba Reddy Palli
  • Publication number: 20150139953
    Abstract: Sequences of a serotype 8 adeno-associated virus and vectors and host cells containing these sequences are provided. Also described are methods of using such host cells and vectors in production of rAAV particles.
    Type: Application
    Filed: January 16, 2015
    Publication date: May 21, 2015
    Inventors: Guangping Gao, James M. Wilson, Mauricio R. Alvira
  • Publication number: 20150140591
    Abstract: The invention concerns the field of cell culture technology. It concerns RNA having a specific sequence, expression vectors encoding said RNA, production host cell lines comprising said RNA, and methods of producing recombinant biopharmaceutical products using engineered host cell with altered levels of said RNAs, such as small non-coding RNAs, preferably microRNAs (miRNAs). The invention also relates to engineered host cells with altered levels in one or more of said RNAs. Those cell lines have improved secretion and/or growth characteristics in comparison to control cell lines.
    Type: Application
    Filed: June 4, 2013
    Publication date: May 21, 2015
    Inventors: Lore Florin, Hitto Kaufman, Angelika Hausser, Monilola Olayioye, Michaela Strotbek
  • Patent number: 9035128
    Abstract: Genetically modified mice are provided that express human ? variable (hV?) sequences, including mice that express hV? sequences from an endogenous mouse ? light chain locus, mice that express hV? sequences from an endogenous mouse ? light chain locus, and mice that express hV? sequences from a transgene or an episome wherein the hV? sequence is linked to a mouse constant sequence. Mice are provided that are a source of somatically mutated human ? variable sequences useful for making antigen-binding proteins. Compositions and methods for making antigen-binding proteins that comprise human ? variable sequences, including human antibodies, are provided.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: May 19, 2015
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Lynn MacDonald, Sean Stevens, Cagan Gurer, Andrew J. Murphy, Karolina A. Hosiawa
  • Publication number: 20150132330
    Abstract: Provided herein are flu hemagglutinin polypeptides, including chimeric influenza virus hemagglutinin polypeptides, and flu hemagglutinin polypeptides comprising modified glycosylation sites and non-naturally glycosylation sites, compositions comprising the same, vaccines comprising the same and methods of their use.
    Type: Application
    Filed: September 19, 2012
    Publication date: May 14, 2015
    Inventors: Adolfo Garcia-Sastre, Peter Palese, Florian Krammer, Natalie Pica, Dirk Eggink, Rafael A. Medina-Silva, Rong Hai
  • Publication number: 20150132853
    Abstract: Methods for de-differentiating or altering the life-span of desired “recipient” cells, e.g., human somatic cells, by the introduction of cytoplasm from a more primitive, less differentiated cell type, e.g., oocyte or blastomere are provided. These methods can be used to produce embryonic stem cells and to increase the efficiency of gene therapy by allowing for desired cells to be subjected to multiple genetic modifications without becoming senescent. Such cytoplasm may be fractionated and/or subjected to subtractive hybridization and the active materials (sufficient for de-differentiation) identified and produced by recombinant methods.
    Type: Application
    Filed: June 11, 2014
    Publication date: May 14, 2015
    Applicant: Advanced Cell Technology, Inc.
    Inventor: Karen B. Chapman
  • Publication number: 20150133531
    Abstract: The present invention provides a method of expressing at least one heterologous nucleic acid sequence in a cell, the method comprising introducing at least one heterologous nucleic acid sequence into a cell by infecting said cell with a recombinant negative-strand RNA virus vector comprising said at least one heterologous nucleic acid sequence, wherein the recombinant negative-strand RNA virus vector includes a viral genome coding for a mutated P protein, which leads to a loss of the viral genome replication ability without a loss of the viral transcription ability, and wherein said at least one heterologous nucleic acid sequence encodes a cellular reprogramming or programming factor or a therapeutic protein. In addition, the present invention provides a cell or a population of cells prepared in vitro by said method as well as a pharmaceutical composition comprising said cell or population of cells.
    Type: Application
    Filed: May 24, 2013
    Publication date: May 14, 2015
    Applicant: AmVac AG
    Inventor: Marian Wiegand
  • Publication number: 20150125431
    Abstract: GLP-2 analogues are disclosed which comprise one of more substitutions as compared to h[Gly2]GLP-2 and which may have the property of an altered GLP-1 activity, and their medical use. The analogues are particularly useful for the prophylaxis, treatment or ameliorating of the gastro-intestinal associated side effects of diabetes.
    Type: Application
    Filed: May 3, 2013
    Publication date: May 7, 2015
    Inventors: Rasmus Just, Kirsten Lindegaard Bovbjerg, Ditte Riber, Wayne Shaun Russell
  • Publication number: 20150118754
    Abstract: The present invention related to a polynucleotide sequence and an expression vector comprising at least one gene encoding a stress resistance protein, at least one gene encoding a selection marker, at least one gene encoding an expression protein, at least one matrix attachment region and a transcription terminator, all of which are operably connected to each other. The present invention further relates to a host cell comprising the expression vector. The present invention also relates a method of producing a cell line.
    Type: Application
    Filed: April 1, 2013
    Publication date: April 30, 2015
    Applicant: BioGenomics Limited
    Inventors: Archana Rajesh Krishnan, Sanjay Madhukar Sonar, Damodar Krishnabahadur Thappa
  • Publication number: 20150104450
    Abstract: Variants of cytotoxic T-lymphocyte antigen 4 (CTLA-4) with high affinity, potency and stability. Formulations of CTLA-4 variants at high concentration for subcutaneous or intravenous administration, e.g. at monthly or less frequent dosage intervals. Use of CTLA-4 variants for treating rheumatoid arthritis and other inflammatory disorders. Fusion of CTLA-4 with IgG Fc having improved stability and longer in vivo half-life.
    Type: Application
    Filed: March 11, 2013
    Publication date: April 16, 2015
    Inventors: Ralph Minter, Julie Douthwaite, Jacques Moisan, Michael Bowen, Steven Rust, Cyril Privezentzev
  • Publication number: 20150094271
    Abstract: A leucine zipper variant, a polynucleotide encoding the leucine zipper variant, a method of preparing a leucine zipper variant, a method of inhibiting HDM2- and/or HDMX using the leucine zipper variant, and a method of the prevention and/or treatment of cancer using the leucine zipper variant.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventors: Jung-Hoon Lee, Eunji Kang, Hye Yoon Kang, Dongkyu Shin, Jae Il Lee, Jieun Han, Jung Min Lee
  • Publication number: 20150087596
    Abstract: The present invention relates to Huwentoxin-IV variants, polynucleotides encoding them, methods of making and using the foregoing, and methods of alleviating pain with peptide inhibitors of Nav1.7.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 26, 2015
    Inventors: William Eckert, Mack Flinspach, Michael Hunter, Yi Liu, Robert Neff, Alan Wickenden, Alan Gibbs
  • Patent number: 8986991
    Abstract: A system and method of adapting host cells to suspension cell culture and suspension cell lines ATCC PTA-12593 and ATCC PTA-12461 produced thereby are disclosed. The method includes the serial replating of substantially undiluted culture cells onto a surface area until cell clumps are visualized and then, upon cell clumping, moving the cells into a suspension culture system.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: March 24, 2015
    Assignee: Expression Therapeutics, LLC
    Inventors: Gabriela D. C. Denning, Richard E Gautney
  • Publication number: 20150079634
    Abstract: The present invention is related to a method to reduce peptide amidation activity in a given cell line, cell lines with reduced peptide amidation activity, and uses thereof.
    Type: Application
    Filed: April 16, 2013
    Publication date: March 19, 2015
    Inventors: Mihaela Skulj, Dominik Gaser
  • Publication number: 20150079123
    Abstract: Disclosed herein are isolated rubella viral vector constructs that include a rubella non-structural protein open reading frame (ORF) without an in-frame deletion, a rubella structural protein ORF, and a heterologous antigenic insert. In one example, the heterologous antigenic insert is positioned within the rubella structural protein ORF. In some examples, the heterologous antigenic insert is positioned in the rubella structural protein ORF in between a gene encoding structural protein E2 and a gene encoding structural protein E1. Exemplary antigenic inserts include HIV, SIV, RSV or hepatitis B surface antigens. In some examples, the HIV antigenic insert is a Gag antigenic insert, a gp41 antigenic insert or a gp120 antigenic insert. Also disclosed are uses of the isolated rubella viral vector, such as to induce an immune response to a particular virus, such as HIV-1, testing sensitivity to neutralizing antibodies, or screening antiviral drugs (such as protease inhibitors).
    Type: Application
    Filed: April 8, 2013
    Publication date: March 19, 2015
    Applicant: The United States of America, as Represented by the Secretary, Dep. of Health and Human Services
    Inventors: Ira Berkower, Konstantin Virnik
  • Publication number: 20150072353
    Abstract: Analyte sensors, methods for producing and using analyte sensors, methods of detecting and/or measuring analyte activity, detecting pH change, and/or, controlling the concentration of an analyte in a system, are disclosed. Embodiments of the analyte sensors according to the disclosure can provide an accurate and convenient method for characterizing analyte activity, detecting pH change, controlling the concentration of an analyte in a system, and the like, in both in vivo and in vitro environments, in particular in living cell imaging.
    Type: Application
    Filed: August 21, 2014
    Publication date: March 12, 2015
    Inventors: Jenny Jie Yang, Shen Tang
  • Publication number: 20150072415
    Abstract: A medium is described for the protein-free and serum-free cultivation of cells, especially mammalian cells, whereby the medium contains a proportion of soy hydrolysate.
    Type: Application
    Filed: March 31, 2014
    Publication date: March 12, 2015
    Applicant: Baxter Innovations GmbH
    Inventors: Manfred Reiter, Wolfgang Mundt, Friedrich Dorner, Leopold Grillberger, Artur Mitterer
  • Publication number: 20150071883
    Abstract: The invention provides improved adeno-associated virus (AAV) Factor VIII (FVIII) vectors, including AAV FVIII vectors that produce a functional Factor VIII polypeptide and AAV FVIII vectors with high expression activity.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 12, 2015
    Inventor: Peter Cameron Colosi
  • Publication number: 20150072383
    Abstract: The present disclosure provides engineered transaminase polypeptides for the production of amines, polynucleotides encoding the engineered transaminases, host cells capable of expressing the engineered transaminases, and methods of using the engineered transaminases to prepare compounds useful in the production of active pharmaceutical agents. The present disclosure provides engineered polypeptides having transaminase activity, polynucleotides encoding the polypeptides, methods of the making the polypeptides, and methods of using the polypeptides for the biocatalytic conversion of ketone substrates to amine products. The present enzymes have been engineered to have one or more residue differences as compared to the amino acid sequence of the naturally occurring transaminase of Vibrio fluvialis. In particular, the transaminases of the present disclosure have been engineered for efficient formation of chiral tryptamine derivatives from its corresponding prochiral ketone substrates.
    Type: Application
    Filed: March 22, 2013
    Publication date: March 12, 2015
    Inventors: Jovana Nazor, Derek Smith, Michael Crowe, Shiwei Song, Steven J. Collier
  • Patent number: 8975068
    Abstract: Disclosed herein are methods for controlling stem cell differentiation through the introduction of transgenes having Xic, Tsix, Xite, or Xic flanking region sequences to block differentiation and the removal of the transgenes to allow differentiation. Also disclosed are small RNA molecules and methods for using the small RNA molecules to control stem cell differentiation. Also disclosed are stem cells genetically modified by the introduction of Xic, Tsix, XUe, or Xic flanking region sequences.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: March 10, 2015
    Assignee: The General Hospital Corporation
    Inventor: Jeannie T. Lee
  • Publication number: 20150065560
    Abstract: The present invention relates to a one-vector expression system comprising a sequence encoding two polypeptides, such as tyrosine hydroxylase (TH) and GTP-cyclohydrolase 1 (GCH1). The two polypeptides can be should preferentially be expressed at a ratio between 3:1 and 15:1, such as between 3:1 and 7:1. The invention is useful in the treatment of catecholamine deficient disorders, such as dopamine deficient disorders including but not limited to Parkinson's Disease. Moreover, the present invention provides a method to deliver the vector construct in order to limit the increased production of the catecholamine to the cells in need thereof.
    Type: Application
    Filed: April 1, 2014
    Publication date: March 5, 2015
    Inventors: Tomas Björklund, Anders Björklund, Deniz Kirik
  • Publication number: 20150064157
    Abstract: The present invention provides further improved compositions and methods for efficient lysosomal targeting based on the GILT technology. Among other things, the present invention provides methods and compositions for targeting lysosomal enzymes to lysosomes using furin-resistant lysosomal targeting peptides. The present invention also provides methods and compositions for targeting lysosomal enzymes to lysosomes using a lysosomal targeting peptide that has reduced or diminished binding affinity for the insulin receptor.
    Type: Application
    Filed: November 7, 2014
    Publication date: March 5, 2015
    Inventors: Jonathan H. LeBowitz, John Maga
  • Publication number: 20150064148
    Abstract: The present invention provides a method for improving pancreatic function in a subject in need thereof, the method comprising administering to the subject STRO-1+ cells and/or progeny cells thereof and/or soluble factors derived therefrom. The method of the invention is useful for treating and/or preventing and/or delaying the onset or progression of a disorder resulting from or associated with pancreatic dysfunction, e.g., resulting from abnormal endocrine or exocrine function of the pancreas.
    Type: Application
    Filed: November 7, 2014
    Publication date: March 5, 2015
    Applicant: MESOBLAST, INC.
    Inventors: Silviu Itescu, Ravi Krishnan
  • Patent number: 8961977
    Abstract: The present invention relates to an anti-idiotypic polypeptide scaffold that includes two or more peptide sequences that mimic a discontinuous epitope of a pathogen that is recognized by or induces formation of a broadly neutralizing antibody. Using a fibronectin FNfn10 scaffold bearing two or more modified discontinuous loops, scaffolds that recognize broadly neutralizing antibodies in vitro and from patient serum have been identified. These scaffolds should induce an immune response or mobilize germline specificities to initiate their affinity maturation.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: February 24, 2015
    Assignee: University of Rochester
    Inventors: Stephen Dewhurst, Mark A. Sullivan
  • Publication number: 20150050243
    Abstract: Described herein are compositions relating to alphavirus-based virus-like particles (VLPs) and methods for making and using the described VLPs. The described compositions include VLPs and vectors and cells used to produce the VLPs. Also included are related methods to produce the VLPs, to transduce cells using the VLPs, and to produce a protein or polynucleotide of interest in a target cell using the VLPs. Also described are alphavirus-based replicons that allow for expression of proteins or polynucleotides of interest in a target cell without a cytopathic effect.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 19, 2015
    Inventors: Stanislaw J. Kaczmarczyk, Deb K. Chatterjee
  • Publication number: 20150050298
    Abstract: A method for suppressing an immune response is provided. The method involves administration of isolated lymphoid tissue-derived suppressive stromal cells (LSSC) to a subject in need of such treatment in an amount effective to suppress the immune response in the subject. The invention also involves a method to isolate LSSC by digesting lymphoid tissue fragments using a combination of an enzyme mix and agitation and then collecting the LSSC. Pharmaceutical preparations comprising LSSC are also provided.
    Type: Application
    Filed: March 13, 2013
    Publication date: February 19, 2015
    Inventors: Anne Fletcher, Shannon J. Turley, Biju Parekkadan
  • Patent number: 8956828
    Abstract: Disclosed herein are methods and compositions for inactivating TCR genes, using zinc finger nucleases (ZFNs) comprising a zinc finger protein and a cleavage domain or cleavage half-domain in conditions able to preserve cell viability. Polynucleotides encoding ZFNs, vectors comprising polynucleotides encoding ZFNs and cells comprising polynucleotides encoding ZFNs and/or cells comprising ZFNs are also provided. Disclosed herein are also methods and compositions for expressing a functional exogenous TCR in the absence of endogenous TCR expression in T lymphocytes, including lymphocytes with a central memory phenotype. Polynucleotides encoding exogenous TCR, vectors comprising polynucleotides encoding exogenous TCR and cells comprising polynucleotides encoding exogenous TCR and/or cells comprising exogenous TCR are also provided.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: February 17, 2015
    Assignees: Sangamo BioSciences, Inc., Ospedale San Raffaele S.R.L.
    Inventors: Maria Chiara Bonini, Pietro Genovese, Philip D. Gregory, Michael C. Holmes, Luigi Naldini, David Paschon, Elena Provasi, Lei Zhang
  • Publication number: 20150044772
    Abstract: An inactive CRISPR/Cas system-based fusion protein and its applications in gene editing are disclosed. More particularly, chimeric fusion proteins including an inCas fused to a DNA modifying enzyme and methods of using the chimeric fusion proteins in gene editing are disclosed. The methods can be used to induce double-strand breaks and single-strand nicks in target DNAs, to generate gene disruptions, deletions, point mutations, gene replacements, insertions, inversions and other modifications of a genomic DNA within cells and organisms.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 12, 2015
    Inventor: Guojun Zhao
  • Publication number: 20150044768
    Abstract: The method of the invention provides for producing a heterologous protein in mammalian host cells having nucleic acid encoding Hepatitis B X protein and the heterologous protein, by growing mammalian host cells selected from the group consistng of HKB11, CHO, BHK21, C2C12, and HEK293 cells, by growing mammalian host cells in non-adherent suspension culture, or by growing mammalian host cells which contain nucleic acid providing exogenous X-box Binding Protein, XBP1s. The conditions should be such that HBx, exogenous XBP1s if present, and the heterologous protein are expressed by the mammalian cells. The invention includes compositions for carrying out the method.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Inventors: FANG JIN, RICHARD N. HARKINS, MAXINE BAUZON, TERRY HERMISTON
  • Publication number: 20150044195
    Abstract: Disclosed are disulphide-linked complexes of a soluble Tissue Factor (sTF) variant of SEQ ID NO:3 comprising the mutation G109C and a Factor VIIa variant of SEQ ID NO. 1, comprising the mutation Q64C and a mutation at position M306 that gives rise to a zymogen-like conformation in the Factor VIIa polypeptide. Said complexes may be used for the treatment of a coagulopathy.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 12, 2015
    Applicant: NOVO NORDISK HEALTHCARE AG
    Inventors: Henrik Oestergaard, Anders Laerke Nielsen, Ole Hvilsted Olsen
  • Publication number: 20150037301
    Abstract: The invention relates to a recombinant factor VIII that includes one or more mutations at an interface of A1 and C2 domains of recombinant factor VIII. The one or more mutations include substitution of one or more amino acid residues with either a cysteine or an amino acid residue having a higher hydrophobicity. This results in enhanced stability of factor VIII. Methods for making the recombinant factor VIII, pharmaceutical compositions containing the recombinant factor VIII, and use of the recombinant factor VIII for treating hemophilia A are also disclosed.
    Type: Application
    Filed: October 19, 2014
    Publication date: February 5, 2015
    Applicant: UNIVERSITY OF ROCHESTER
    Inventors: Philip J. Fay, Hironao Wakabayashi
  • Publication number: 20150037872
    Abstract: The present invention relates to a method of selecting a protein variant having modified immunogenicity as compared to the parent protein comprising the steps obtaining antibody binding peptide sequences, using the sequences to localise epitope sequences on the 3-dimensional structure of parent protein, defining an epitope area including amino acids situated within 5 ? from the epitope amino acids constituting the epitope sequence, changing one or more of the amino acids defining the epitope area of the parent protein by genetical engineering mutations of a DNA sequence encoding the parent protein, introducing the mutated DNA sequence into a suitable host, culturing said host and expressing the protein variant, and evaluating the immunogenicity of the protein variant using the parent protein as reference. The invention further relates to the protein variant and use thereof, as well as to a method for producing said protein variant.
    Type: Application
    Filed: October 15, 2014
    Publication date: February 5, 2015
    Inventors: Erwin Ludo Roggen, Steffen Ernst, Allan Svendsen, Esben Peter Friis, Claus Von Der Osten
  • Publication number: 20150023995
    Abstract: The present invention provides polypeptides having a composite amino acid sequence derived from a consensus sequence representing the capsid proteins of two or more circulating strains of a non-enveloped virus. In particular, the invention provides virus-like particles comprising at least one composite polypeptide. Such virus-like particles have antigenic epitopes of two or more circulating strains of a non-enveloped virus and produce an increase in antisera cross-reactivity to one or more circulating strains of the non-enveloped virus. Methods of making composite virus-like particles and vaccine formulations comprising composite virus-like particles are also disclosed.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 22, 2015
    Applicant: TAKEDA VACCINES, INC.
    Inventors: Charles RICHARDSON, Robert F. BARGATZE, Joel HAYNES, Bryan STEADMAN
  • Publication number: 20150023959
    Abstract: The present invention provides a VWF fragment comprising the D? domain and D3 domain of VWF, a chimeric protein comprising the VWF fragment and a heterologous moiety, or a chimeric protein comprising the VWF fragment and a FVIII protein and methods of using the same. A polypeptide chain comprising a VWF fragment of the invention binds to or is associated with a polypeptide chain comprising a FVIII protein and the polypeptide chain comprising the VWF fragment can prevent or inhibit binding of endogenous VWF to the FVIII protein. By preventing or inhibiting binding of endogenous VWF to the FVIII, which is a half-life limiting factor for FVIII, the VWF fragment can induce extension of half-life of the FVIII protein. The invention also includes nucleotides, vectors, host cells, methods of using the VWF fragment, or the chimeric proteins.
    Type: Application
    Filed: January 12, 2013
    Publication date: January 22, 2015
    Applicant: BIOGEN IDEC MA INC.
    Inventors: Ekta Seth Chhabra, Tongyao Liu, Robert T. Peters, Haiyan Jiang
  • Publication number: 20150024485
    Abstract: This invention relates to industrial production of proteins. More specifically, the invention relates to the res-DHFR surrogate marker, which corresponds to a fusion between DHFR and a protein conferring resistance to a toxic compound or conferring a metabolic advantage. The invention further relates to the use of res-DHFR for screening cells for high expression of a protein of interest. The invention is illustrated by the Puro-DHFR surrogate marker, which corresponds to a fusion between the puromycin N-acetyltransferase and dihydrofolate reductase (DHFR).
    Type: Application
    Filed: September 10, 2014
    Publication date: January 22, 2015
    Inventors: MICHEL KOBR, PHILIPPE DUPRAZ
  • Publication number: 20150017695
    Abstract: The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Jack Liang, Stephane J. Jenne, Emily Mundorff, Charlene Ching, John M. Gruber, Anke Krebber, Gjalt W. Huisman
  • Publication number: 20150018522
    Abstract: Disclosed are mutants of galactosyltransferases that can catalyze formation of oligosaccharides in the presence of magnesium; mutants of galactosyltransferases having altered donor and acceptor specificity which can catalyze formation of oligosaccharides in the presence of magnesium; methods and compositions that can be used to synthesize oligosaccharides; methods for increasing the immunogenicity of an antigen; and methods to stabilize platelets.
    Type: Application
    Filed: March 10, 2014
    Publication date: January 15, 2015
    Applicant: The United States of America, as represented by the Secretary, Department of Health & Human Servic
    Inventors: Pradman K. Qasba, Elizabeth Boeggeman, Boopathy Ramakrishnan
  • Publication number: 20150011733
    Abstract: Disclosed are methods of making collagen 7, or functional fragments thereof, as well as collagen 7, and functional fragments thereof produced by such methods, nucleic acids encoding collagen 7, and functional fragments thereof, as well as vectors and host cells comprising such nucleic acids.
    Type: Application
    Filed: August 3, 2012
    Publication date: January 8, 2015
    Inventors: Malini Viswanathan, Mark DeSouza
  • Publication number: 20150010514
    Abstract: The present invention relates to the field of stem cell biology, in particular the lineage specific differentiation of pluripotent or multipotent stem cells, which can include, but is not limited to, human embryonic stem cells (hESC) in addition to nonembryonic human induced pluripotent stem cells (hiPSC), somatic stem cells, stem cells from patients with a disease, or any other cell capable of lineage specific differentiation. Specifically described are methods to direct the lineage specific differentiation of hESC and/or hiPSC into floor plate midbrain progenitor cells and then further into large populations of midbrain fate FOXA2+LMX1A+TH+ dopamine (DA) neurons using novel culture conditions.
    Type: Application
    Filed: November 2, 2012
    Publication date: January 8, 2015
    Inventors: Lorenz Studer, Jae-Won Shim, Sonja Kriks
  • Publication number: 20150010593
    Abstract: The present invention provides genetically modified cells useful for viral replication and the production of viral vaccines.
    Type: Application
    Filed: January 10, 2013
    Publication date: January 8, 2015
    Inventors: Marciela Degrace, Nir Hacohen, Sagi Shapira, Liguo Wu
  • Publication number: 20150004690
    Abstract: The invention describes novel virus-like particles for use as vaccines, diagnostic tools and R&D tools based on recombinant DNA and cell cultivation techniques for production. The recombinant virus-like particles of the invention are assembled by polypeptide chains that incorporate several, in particular two or more, different epitopes which are selected either (a) from different viral strains of the same virus and/or (b) from different serotypes of the same virus and/or (c) from different viral strains specific for different hosts. These epitopes are then displayed on the particle surface.
    Type: Application
    Filed: August 29, 2014
    Publication date: January 1, 2015
    Inventors: Corinne JOHN, Christian SCHAUB, Sabine WELLNITZ
  • Publication number: 20140377803
    Abstract: The present invention relates to a cell for producing a secreted protein comprising a polynucleotide comprising a nucleic acid sequence encoding a fast cycling cdc42 mutant and a polynucleotide comprising a nucleic acid sequence encoding a secreted protein. It also relates to a method for producing said cell and to a method for producing a secreted protein using said cell.
    Type: Application
    Filed: May 14, 2012
    Publication date: December 25, 2014
    Applicant: PROBIOGEN AG
    Inventors: Volker Sandig, Karsten Winkler, Henning Von Horsten, Thomas Rose
  • Publication number: 20140377800
    Abstract: The present invention relates to methods of optimization of a protein coding sequences for expression in a given host cell. The methods apply genetic algorithms to optimise single codon fitness and/or codon pair fitness sequences coding for a predetermined amino acid sequence. In the algorithm generation of new sequence variants and subsequent selection of fitter variants is reiterated until the variant coding sequences reach a minimum value for single codon fitness and/or codon pair fitness. The invention also relates to a computer comprising a processor and memory, the processor being arranged to read from and write into the memory, the memory comprising data and instructions arranged to provide the processor with the capacity to perform the genetic algorithms for optimisation of single codon fitness and/or codon pair fitness.
    Type: Application
    Filed: May 20, 2014
    Publication date: December 25, 2014
    Inventors: Johannes Andries ROUBOS, Noel Nicolaas Maria Elisabeth VAN PEIJ
  • Patent number: 8916380
    Abstract: Disclosed is a method for preparing an embryonic stem cell (ESC)-like cell, which includes the steps of: (a) obtaining a first cell population from a mammalian tissue or body fluid, wherein the first cell population comprises adult stem cells; (b) obtaining a second somatic cell population from a mammalian tissue, wherein the mammalian tissue is different from the mammalian tissue in step (a) and the second cell population is different from the first cell population; (c) coculturing the first cell population and the second cell population in a medium for a period of time sufficient to form a colony from either the first cell population or the second cell population; and (d) subculturing a cell from the colony in a medium for a period time sufficient to prepare the ESC-like cell.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: December 23, 2014
    Assignee: Seoul National University Industry Foundation
    Inventors: Jeong Mook Lim, Jae Yong Han, Hee Bal Kim, Seoung Tae Lee, Eun Ju Lee, Seung Pyo Gong
  • Patent number: 8911776
    Abstract: The present invention relates to novel therapies for treatment of new and existing type 1 and type 2 diabetes, PreDiabetes, Latent Autoimmune Diabetes of Adulthood, and diseases of insulin deficiency, beta cell deficiency, insulin resistance and impaired glucose metabolism. In particular, the present invention identifies common peptides within the human Reg1a, Reg1b, Reg3a and Reg4, as signaling peptides for beta cell generation acting through the human Reg Receptor on the surface of human pancreatic extra-islet tissue.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: December 16, 2014
    Inventor: Claresa Levetan