Patents Assigned to Cytos Biotechnology AG
  • Publication number: 20150315246
    Abstract: The invention provides a process for the purification recombinantly expressed, self-assembled VLP from the homogenate of a bacterial host, wherein the process can be scaled up to a commercial production scale in a cost effective manner. The process comprises a first chromatography using an anion exchange matrix, a second chromatography using hydroxyapatite and, optionally, a size exclusion chromatography. VLP preparations obtained by the process of the invention are essentially free of endotoxin contaminations.
    Type: Application
    Filed: January 14, 2015
    Publication date: November 5, 2015
    Applicant: Cytos Biotechnology AG
    Inventors: SUSANNE RICHTER, Simon Topell
  • Publication number: 20150004688
    Abstract: The invention provides processes for the producing compositions comprising (i) a virus-like particle, wherein said virus-like particle is a virus-like particle of an RNA bacteriophage, and (ii) an oligonucleotide, wherein said oligonucleotide is packaged into said virus-like particle. The invention further provides processes for producing nucleotide compositions comprising oligonucleotides suitable to be used in the processes mentioned before. The invention further provides nucleotide compositions obtainable by the processes of the invention and uses thereof. The invention further provides compositions comprising (i) a virus-like particle, wherein said virus-like particle is a virus-like particle of an RNA bacteriophage, and (ii) an oligonucleotide, wherein said oligonucleotide is packaged into said virus-like particle, wherein said compositions are obtainable by the processes of the invention and wherein said compositions preferably comprises a purity of at least 98%, most preferably of at least 99%.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 1, 2015
    Applicant: Cytos Biotechnology AG
    Inventors: Matthias KINZLER, Karl Proba
  • Publication number: 20140186405
    Abstract: The invention provides processes for the producing compositions comprising (i) a virus-like particle, wherein said virus-like particle is a virus-like particle of an RNA bacteriophage, and (ii) an oligonucleotide, wherein said oligonucleotide is packaged into said virus-like particle. The invention further provides processes for producing nucleotide compositions comprising oligonucleotides suitable to be used in the processes mentioned before. The invention further provides nucleotide compositions obtainable by the processes of the invention and uses thereof. The invention further provides compositions comprising (i) a virus-like particle, wherein said virus-like particle is a virus-like particle of an RNA bacteriophage, and (ii) an oligonucleotide, wherein said oligonucleotide is packaged into said virus-like particle, wherein said compositions are obtainable by the processes of the invention and wherein said compositions preferably comprises a purity of at least 98%, most preferably of at least 99%.
    Type: Application
    Filed: July 15, 2013
    Publication date: July 3, 2014
    Applicant: Cytos Biotechnology AG
    Inventors: Matthias KINZLER, Karl Proba
  • Patent number: 8691209
    Abstract: The invention relates to the finding that virus like particles (VLPs) can be loaded with immunostimulatory substances, in particular with DNA oligonucleotides containing non-methylated C and G (CpGs). Such CpG-VLPs are dramatically more immunogenic than their CpG-free counterparts and induce enhanced B and T cell responses. The immune response against antigens optionally coupled, fused or attached otherwise to the VLPs is similarly enhanced as the immune response against the VLP itself. In addition, the T cell responses against both the VLPs and antigens are especially directed to the Th1 type. Antigens attached to CpG-loaded VLPs may therefore be ideal vaccines for prophylactic or therapeutic vaccination against allergies, tumors and other self-molecules and chronic viral diseases.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: April 8, 2014
    Assignee: Cytos Biotechnology AG
    Inventors: Martin F. Bachmann, Tazio Storni, Patrik Maurer, Alain Tissot, Katrin Schwarz, Edwin Meijerink, Gerd Lipowsky, Paul Pumpens, Indulis Cielens, Regina Renhofa
  • Publication number: 20140081008
    Abstract: The invention provides a process for the purification recombinantly expressed, self-assembled VLP from the homogenate of a bacterial host, wherein the process can be scaled up to a commercial production scale in a cost effective manner. The process comprises a first chromatography using an anion exchange matrix, a second chromatography using hydroxyapatite and, optionally, a size exclusion chromatography. VLP preparations obtained by the process of the invention are essentially free of endotoxin contaminations.
    Type: Application
    Filed: April 2, 2013
    Publication date: March 20, 2014
    Applicant: Cytos Biotechnology AG
    Inventor: Cytos Biotechnology AG
  • Publication number: 20130344098
    Abstract: The present invention is in the fields of medicine, public health, immunology, molecular biology and virology. The invention provides compositions comprising a virus-like particle (VLP) or a virus particle and at least one antigen, particularly at least one feline antigen, and more particularly at least one feline antigen that is a human allergen. In certain embodiments, the antigen is a Fel d1 antigen or a fragment thereof, covalently linked to the VLP. The invention also provides methods for producing the compositions. The compositions of the invention induce efficient immune responses, in particular antibody responses, in mammals, particularly humans. The compositions and methods of the invention are useful in the production of vaccines, in particular for the treatment and/or prevention of allergies to cat dander and other cat antigens and allergens.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 26, 2013
    Applicant: Cytos Biotechnology AG
    Inventors: Martin BACHMANN, Monika Bauer, Klaus Dietmeier, Nicole Schmitz, Stephan Utzinger
  • Publication number: 20130315949
    Abstract: The present invention is related to the fields of molecular biology, virology, immunology and medicine. The invention provides a composition comprising an ordered and repetitive antigen or antigenic determinant array. The invention also provides a process for producing an antigen or antigenic determinant in an ordered and repetitive array. The ordered and repetitive antigen or antigenic determinant is useful in the production of vaccines for the treatment of infectious diseases, the treatment of allergies and as a pharmaccine to prevent or cure cancer and to efficiently induce self-specific immune responses, in particular antibody responses.
    Type: Application
    Filed: December 7, 2012
    Publication date: November 28, 2013
    Applicant: Cytos Biotechnology AG
    Inventors: Wolfgang A. RENNER, Martin Bachmann, Alain Tissot, Patrick Maurer, Franziska Lechner, Peter Sebbel, Christine Piossek
  • Patent number: 8586728
    Abstract: This invention pertains to methods for oligonucleotide synthesis, specifically the synthesis of oligonucleotides that contain a high content of guanine monomers. In more detail, the invention relates to a method for coupling a nucleoside phosphoramidite during the synthesis of an oligonucleotide to a universal support, to a first nucleoside, or to an extending oligonucleotide. The invention further relates to oligonucleotides obtainable by the methods of the invention.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: November 19, 2013
    Assignee: Cytos Biotechnology AG
    Inventor: Brian Stephen Sproat
  • Patent number: 8574564
    Abstract: The application is related to compositions and methods for the treatment of hypersensitivity, wherein the compositions comprise a particle packaged with immunostimulatory nucleic acids. The compositions of the invention are particularly useful in the treatment of atopic eczema, asthma and IgE-mediated allergy (type I allergy), especially pollen allergy and house dust allergy.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: November 5, 2013
    Assignee: Cytos Biotechnology AG
    Inventors: Wolfgang A. Renner, Martin F. Bachmann, Indulis Cielens, Conrad Johannes Coester, Klaus Dietmeier, Sebastian Fuchs, Vania Manolova, Patrik Maurer, Paul Pumpens, Regina Renhofa, Alain Tissot, Yu Zou
  • Patent number: 8541559
    Abstract: The invention provides processes for the producing compositions comprising (i) a virus-like particle, wherein said virus-like particle is a virus-like particle of an RNA bacteriophage, and (ii) an oligonucleotide, wherein said oligonucleotide is packaged into said virus-like particle. The invention further provides processes for producing nucleotide compositions comprising oligonucleotides suitable to be used in the processes mentioned before. The invention further provides nucleotide compositions obtainable by the processes of the invention and uses thereof. The invention further provides compositions comprising (i) a virus-like particle, wherein said virus-like particle is a virus-like particle of an RNA bacteriophage, and (ii) an oligonucleotide, wherein said oligonucleotide is packaged into said virus-like particle, wherein said compositions are obtainable by the processes of the invention and wherein said compositions preferably comprises a purity of at least 98%, most preferably of at least 99%.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: September 24, 2013
    Assignee: Cytos Biotechnology AG
    Inventors: Matthias Kinzler, Karl Proba
  • Publication number: 20130230484
    Abstract: The present invention is related to the fields of molecular biology, virology, immunology and medicine. The invention provides a composition comprising an ordered and repetitive antigen array, wherein the antigen is an IL-1 protein, an IL-1 mutein or an IL-1 fragment. More specifically, the invention provides a composition comprising a virus-like particle, and at least one IL-1 protein, IL-1 mutein or at least one IL-1 fragment linked thereto. The invention also provides a process for producing the composition. The compositions of the invention are useful in the production of vaccines for the treatment of inflammatory diseases, and chronic autoimmune diseases, genetic diseases and cardiovascular diseases. The composition of the invention efficiently induces immune responses, in particular antibody responses. Furthermore, the compositions of the invention are particularly useful to efficiently induce self-specific immune responses within the indicated context.
    Type: Application
    Filed: August 1, 2012
    Publication date: September 5, 2013
    Applicant: Cytos Biotechnology AG
    Inventors: Martin BACHMANN, Gunther Spohn, Alain Tissot
  • Publication number: 20130142821
    Abstract: The present invention provides compositions comprising a conjugate of a hapten with a carrier in an ordered and repetitive array, and methods of making such compositions. The conjugates and compositions of the invention may comprise a variety of haptens, including hormones, toxins and drugs, especially drugs of addiction such as nicotine. Compositions and conjugates of the invention are useful for inducing immune responses against haptens, which can use useful in a variety of therapeutic, prophylactic and diagnostic regimens. In certain embodiments, immune responses generated using the conjugates, compositions and methods of the present invention are useful to prevent or treat addiction to drugs of abuse and the resultant diseases associated with drug addiction.
    Type: Application
    Filed: May 21, 2012
    Publication date: June 6, 2013
    Applicant: Cytos Biotechnology AG
    Inventors: Martin F. BACHMANN, Patrik Maurer
  • Patent number: 8449874
    Abstract: The present invention is related to the fields of molecular biology, virology, immunology and medicine. The invention provides a composition comprising an ordered and repetitive antigen array, wherein the antigen is an IL-1 mutein. More specifically, the invention provides a composition comprising a virus-like particle, and at least one IL-1 mutein linked thereto. The invention also provides a process for producing the composition. The compositions of the invention are useful in the production of vaccines for the treatment of inflammatory diseases, and chronic autoimmune diseases, genetic diseases and cardiovascular diseases. The composition of the invention efficiently induces immune responses, in particular antibody responses. Furthermore, the compositions of the invention are particularly useful to efficiently induce self-specific immune responses within the indicated context.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: May 28, 2013
    Assignee: Cytos Biotechnology AG
    Inventors: Martin F. Bachmann, Gunther Spohn, Alain Tissot
  • Publication number: 20130115189
    Abstract: The present invention provides compositions, pharmaceutical compositions and vaccines for the treatment, amelioration and/or prophylaxis of type II diabetes. The compositions, pharmaceutical compositions and vaccines of the invention comprise a virus-like particle of an RNA bacteriophage and an antigen, wherein said antigen comprises an interleukin-1 beta (IL-1?) mutein. When administered to an animal, preferably to a human, said compositions, pharmaceutical compositions, and vaccines induce efficient immune responses, in particular antibody responses, wherein typically and preferably said antibody responses are directed against IL-1?. Thus, the invention provides methods of treating, ameliorating or preventing type II diabetes by way of active immunization against IL-1?.
    Type: Application
    Filed: September 9, 2010
    Publication date: May 9, 2013
    Applicant: Cytos Biotechnology AG
    Inventors: Martin F. Bachmann, Gunther Spohn, Patrik Maurer
  • Patent number: 8344111
    Abstract: The invention relates to recombinantly produced human monoclonalantibodies which are specifically binding nicotine and to nucleic acids encoding the same. The invention further relates to the use of such antibodies in the treatment of nicotine addiction.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: January 1, 2013
    Assignee: Cytos Biotechnology AG
    Inventors: Martin Bachmann, Monika Bauer, Roger Beerli, Patrik Maurer
  • Publication number: 20120322103
    Abstract: This invention provides a robust fermentation process for the expression of a capsid protein of a bacteriophage which is forming a VLP by self-assembly, wherein the process is scalable to a commercial production scale and wherein the expression rate of the capsid protein is controlled to obtain improved yield of soluble capsid protein. This is achieved by combining the advantages of fed-batch culture and of lactose induced expression systems with specific process parameters providing improved repression of the promoter during the growth phase and high plasmid retention throughout the process.
    Type: Application
    Filed: December 22, 2011
    Publication date: December 20, 2012
    Applicant: Cytos Biotechnology AG
    Inventors: Marcel EMMERLING, Frank Hennecke, Holger Pfründer, Martin Rhiel, Philipp Steiner
  • Publication number: 20120263743
    Abstract: The present invention is in the fields of medicine, public health, immunology, molecular biology and virology. The invention provides compositions, vaccine compositions and pharmaceutical compositions for the treatment, amelioration and/or prevention of influenza. The compositions, vaccine compositions and pharmaceutical compositions of the invention comprise a virus-like particle of an RNA bacteriophage and at least one antigen, wherein said at least one antigen is an ectodomain of an influenza virus hemagglutinin protein or a fragment of said ectodomain of an influenza virus hemagglutinin protein. When administered to an animal, preferably to a human, said compositions, vaccine compositions and pharmaceutical compositions efficiently induce immune responses, in particular antibody responses, wherein typically and preferably said antibody responses are directed against influenza virus. Thus, the invention further provides methods of treating, ameliorating and/or preventing influenza virus infection.
    Type: Application
    Filed: April 30, 2010
    Publication date: October 18, 2012
    Applicant: Cytos Biotechnology AG
    Inventors: Martin Bachmann, Andrea Jegerlehner, Philippe Saudan
  • Publication number: 20120214976
    Abstract: The invention provides a process for the purification recombinantly expressed, self-assembled VLP from the homogenate of a bacterial host, wherein the process can be scaled up to a commercial production scale in a cost effective manner. The process comprises a first chromatography using an anion exchange matrix, a second chromatography using hydroxyapatite and, optionally, a size exclusion chromatography. VLP preparations obtained by the process of the invention are essentially free of endotoxin contaminations.
    Type: Application
    Filed: August 22, 2011
    Publication date: August 23, 2012
    Applicant: Cytos Biotechnology AG
    Inventors: Susanne Richter, Simon Topell
  • Patent number: 8187607
    Abstract: The present invention provides compositions comprising a conjugate of a hapten with a carrier in an ordered and repetitive array, and methods of making such compositions. The conjugates and compositions of the invention may comprise a variety of haptens, including hormones, toxins and drugs, especially drugs of addiction such as nicotine. Compositions and conjugates of the invention are useful for inducing immune responses against haptens, which can use useful in a variety of therapeutic, prophylactic and diagnostic regimens. In certain embodiments, immune responses generated using the conjugates, compositions and methods of the present invention are useful to prevent or treat addiction to drugs of abuse and the resultant diseases associated with drug addiction.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: May 29, 2012
    Assignee: Cytos Biotechnology AG
    Inventors: Martin F. Bachmann, Patrik Maurer
  • Publication number: 20110306113
    Abstract: The invention provides a process for the purification recombinantly expressed, self-assembled VLP from the homogenate of a bacterial host, wherein the process can be scaled up to a commercial production scale in a cost effective manner. The process comprises a first chromatography using an anion exchange matrix, a second chromatography using hydroxyapatite and, optionally, a size exclusion chromatography. VLP preparations obtained by the process of the invention are essentially free of endotoxin contaminations.
    Type: Application
    Filed: December 23, 2010
    Publication date: December 15, 2011
    Applicant: Cytos Biotechnology AG
    Inventors: Susanne RICHTER, Simon Topell