Patents by Inventor Jianzhu Chen

Jianzhu Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090081249
    Abstract: Antimicrobial compositions containing two or more antiviral agents coupled to a polymer and methods of making and using the compositions, are described herein. In one embodiment, two or more antiviral agents are covalently coupled to the polymer. Suitable antiviral agents include, but are not limited to, sialic acid, zanamivir, oseltamivir, amantadine, rimantadine, and combinations thereof. The polymer is preferably a water-soluble, biocompatible polymer. Suitable polymers include, but are not limited to, poly(isobutylene-alt-maleic anhydride) (PIBMA), poly(aspartic acid), poly(l-glutamic acid), polylysine, poly(acrylic acid), plyaginic acid, chitosan, carboxymethyl cellulose, carboxymethyl dextran, polyethyleneimine, and blends and copolymers thereof. In another embodiment, the compositions contain a physical mixture of polymer containing one antiviral agent and polymer containing a second antiviral agent. The compositions can be formulated for enteral or parenteral administration.
    Type: Application
    Filed: August 25, 2008
    Publication date: March 26, 2009
    Inventors: Jayanta Haldar, Luis Alvarez de Cienfuegos, Alexander M. Klibanov, Jianzhu Chen
  • Patent number: 7501125
    Abstract: The present invention relates to a method of inducing a CD8+ CTL response to a molecule in an individual deficient in CD4+ T cells comprising administering to the individual an hsp or a portion of an ATP binding domain of an hsp joined to the molecule. In one embodiment, the present invention relates to a method of treating HIV in an individual deficient in CD4+ T cells comprising administering to the individual an hsp or a portion of an ATP binding domain of an hsp joined to the molecule. Also encompassed by the present invention is a method of inducing a CD4+ independent CTL response in an individual comprising administering to the individual a portion of an ATP binding domain of an hsp joined to the molecule. The present invention also relates to a method of inducing a CD8+ CTL response in an individual comprising administering to the individual a portion of an ATP binding domain of an hsp joined to the molecule.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: March 10, 2009
    Assignees: Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology
    Inventors: Qian Huang, Joan F. L. Richmond, Bryan K. Cho, Deborah Pallister, Jianzhu Chen, Herman N. Eisen, Richard A. Young
  • Publication number: 20070004661
    Abstract: The invention provides antisense antiviral compounds and methods of their use and production in inhibition of growth of viruses of the Orthomyxoviridae family and in the treatment of a viral infection. The compounds are particularly useful in the treatment of influenza virus infection in a mammal. The antisense antiviral compounds are substantially uncharged, including partially positively charged, morpholino oligonucleotides having 1) a nuclease resistant backbone, 2) 12-40 nucleotide bases, and 3) a targeting sequence of at least 12 bases in length that hybridizes to a target region selected from the following: a) the 5? or 3? terminal 25 bases of the negative sense viral RNA segment of Influenzavirus A, Influenzavirus B and Influenzavirus C; b) the terminal 25 bases of the 3? terminus of the positive sense cRNA and; and c) the 50 bases surrounding the AUG start codon of an influenza viral mRNA.
    Type: Application
    Filed: May 11, 2006
    Publication date: January 4, 2007
    Inventors: David Stein, Qing Ge, Jianzhu Chen, Patrick Iversen, Dwight Weller
  • Publication number: 20060160759
    Abstract: The present invention provides compositions comprising an RNAi-inducing entity targeted to an influenza virus transcript and any of a variety of delivery agents. The invention further includes methods of use of the compositions for inhibiting a biological activity of an influenza virus and/or for treatment or prevention of influenza. The invention provides target portion sequences that are favorably conserved for RNAi across a plurality of influenza virus A strains isolated from human hosts and/or avian hosts and RNAi-inducing entities, e.g., siRNAs and shRNAs, targeted to such favorably conserved target portions. The invention provides a variety of nucleic acids comprising sequences identical or complementary to at least a portion of one or more of these favorably conserved target portion sequences. The invention further provides methods and compositions for delivering RNAi-inducing agents to an organ or tissue of a mammalian subject, e.g., to the lung.
    Type: Application
    Filed: April 8, 2005
    Publication date: July 20, 2006
    Inventors: Jianzhu Chen, Qing Ge, Herman Eisen
  • Publication number: 20060148747
    Abstract: The invention provides antisense antiviral compounds and methods of their use and production in inhibition of growth of viruses of the Orthomyxoviridae family and in the treatment of a viral infection. The compounds are particularly useful in the treatment of influenza virus infection in a mammal. The antisense antiviral compounds are substantially uncharged morpholino oligonucleotides having 1) a nuclease resistant backbone, 2) 12-40 nucleotide bases, and 3) a targeting sequence of at least 12 bases in length that hybridizes to a target region selected from the following: a) the 5? or 3? terminal 25 bases of the negative sense viral RNA segment of Influenzavirus A, Influenzavirus B and Influenzavirus C; b) the terminal 25 bases of the 3? terminus of the positive sense cRNA and; and c) the 50 bases surrounding the AUG start codon of an influenza viral mRNA.
    Type: Application
    Filed: October 25, 2005
    Publication date: July 6, 2006
    Inventors: David Stein, Qing Ge, Jianzhu Chen, Patrick Iversen
  • Publication number: 20060058255
    Abstract: The present invention provides compositions comprising one or more RNAi agents (e.g., siRNAs, shRNAs, or RNAi vectors) for the treatment of conditions and diseases mediated by (e.g., featuring IgE-mediated hypersensitivity), as well as systems for identifying RNAi agents effective for this purpose. The compositions are suitable for the treatment of allergic rhinitis and/or asthma. In certain embodiments of the invention the RNAi agent is targeted to a transcript that encodes a protein selected from the group consisisting of the FC?RI? chain, the FC?RI? chain, c-Kit, Lyn, Syk, ICOS, OX40L, CD40, CD80, CD86, Re1A, Re1B, 4-1BB ligand, TLR1, TLR2, TLR3, TLR4, TLR5, TLR6, TLR7, TLR8, TLR9, CD83, SLAM, common ? chain, and COX-2. In addition, the invention provides RNAi agent/delivery agent compositions and methods of use. In certain embodiments of the invention compositions comprising an RNAi agent are delivered by the respiratory route.
    Type: Application
    Filed: March 1, 2005
    Publication date: March 16, 2006
    Inventors: Jianzhu Chen, Herman Eisen, Qing Ge
  • Patent number: 6875435
    Abstract: The present invention relates to a method of inducing a CD8+ CTL response to a molecule in an individual deficient in CD4+ T cells comprising administering to the individual an hsp or a portion of an ATP binding domain of an hsp joined to the molecule. In one embodiment, the present invention relates to a method of treating HIV in an individual deficient in CD4+ T cells comprising administering to the individual an hsp or a portion of an ATP binding domain of an hsp joined to the molecule. Also encompassed by the present invention is a method of inducing a CD4+ independent CTL response in an individual comprising administering to the individual a portion of an ATP binding domain of an hsp joined to the molecule. The present invention also relates to a method of inducing a CD8+ CTL response in an individual comprising administering to the individual a portion of an ATP binding domain of an hsp joined to the molecule.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: April 5, 2005
    Assignees: Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology
    Inventors: Qian Huang, Joan F. L. Richmond, Bryan K. Cho, Deborah Palliser, Jianzhu Chen, Herman N. Eisen, Richard A. Young
  • Publication number: 20050048079
    Abstract: The present invention relates to a method of inducing a CD8+ CTL response to a molecule in an individual deficient in CD4+ T cells comprising administering to the individual an hsp or a portion of an ATP binding domain of an hsp joined to the molecule. In one embodiment, the present invention relates to a method of treating HIV in an individual deficient in CD4+ T cells comprising administering to the individual an hsp or a portion of an ATP binding domain of an hsp joined to the molecule. Also encompassed by the present invention is a method of inducing a CD4+ independent CTL response in an individual comprising administering to the individual a portion of an ATP binding domain of an hsp joined to the molecule. The present invention also relates to a method of inducing a CD8+ CTL response in an individual comprising administering to the individual a portion of an ATP binding domain of an hsp joined to the molecule.
    Type: Application
    Filed: July 1, 2004
    Publication date: March 3, 2005
    Applicants: Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology
    Inventors: Qian Huang, Joan Richmond, Bryan Cho, Deborah Palliser, Jianzhu Chen, Herman Eisen, Richard Young
  • Publication number: 20050008617
    Abstract: The present invention provides compositions comprising an RNAi-inducing entity any of a variety of different delivery agents. Preferred RNAi-inducing agents include siRNA, shRNA, and RNAi-inducing vectors. Preferred delivery agents include cationic polymers, modified cationic polymers, lipids, and surfactants suitable for introduction into the lung. The invention further provides methods of inhibiting expression of a target transcript in a mammal and methods of treating or preventing a disease or condition in a mammal by administration of the compositions.
    Type: Application
    Filed: September 29, 2003
    Publication date: January 13, 2005
    Inventors: Jianzhu Chen, Herman Eisen, Qing Ge
  • Publication number: 20040242518
    Abstract: The present invention provides methods and compositions for inhibiting influenza infection and/or replication based on the phenomenon of RNA interference (RNAi) well as systems for identifying effective siRNAs and shRNAs for inhibiting influenza virus and systems for studying influenza virus infective mechanisms. The invention also provides methods and compositions for inhibiting infection, pathogenicity and/or replication of other infectious agents, particularly those that infect cells that are directly accessible from outside the body, e.g., skin cells or mucosal cells. In addition, the invention provides compositions comprising an RNAi-inducing entity, e.g., an siRNA, shRNA, or RNAi-inducing vector targeted to an influenza virus transcript and any of a variety of delivery agents. The invention further includes methods of use of the compositions for treatment of influenza.
    Type: Application
    Filed: September 29, 2003
    Publication date: December 2, 2004
    Applicant: Massachusetts Institute of Technology
    Inventors: Jianzhu Chen, Herman N. Eisen, Qing Ge
  • Publication number: 20020146426
    Abstract: The present invention relates to a method of inducing a CD8+ CTL response to a molecule in an individual deficient in CD4+ T cells comprising administering to the individual an hsp or a portion of an ATP binding domain of an hsp joined to the molecule. In one embodiment, the present invention relates to a method of treating HIV in an individual deficient in CD4+T cells comprising administering to the individual an hsp or a portion of an ATP binding domain of an hsp joined to the molecule. Also encompassed by the present invention is a method of inducing a CD4+ independent CTL response in an individual comprising administering to the individual a portion of an ATP binding domain of an hsp joined to the molecule. The present invention also relates to a method of inducing a CD8+ CTL response in an individual comprising administering to the individual a portion of an ATP binding domain of an hsp joined to the molecule.
    Type: Application
    Filed: January 16, 2001
    Publication date: October 10, 2002
    Applicant: Whitehead Institute for Biomedical Research
    Inventors: Qian Huang, Joan F.L. Richmond, Bryan K. Cho, Deborah Palliser, Jianzhu Chen, Herman N. Eisen, Richard A. Young