Patents by Inventor Xiaoping Liang

Xiaoping Liang 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: 20100143396
    Abstract: The invention relates to a method for the preparation of a stabilized cross-linked oligomer of amyloid beta using a near-zero length bifunctional cross-linking agent for use as an immunogen for the generation of antibodies for the treatment of Alzheimer's Disease and other conditions related to abnormal amyloid beta aggregation. A preferred bifunctional cross-linking agent is 1,5-difluoro-2,4-dinitrobenzene (DFDNB).
    Type: Application
    Filed: June 26, 2006
    Publication date: June 10, 2010
    Inventors: Karen M. Grimm, Joseph G. Joyce, Xiaoping Liang, Denise Nawrocki
  • Publication number: 20090098155
    Abstract: The invention provides compositions and methods for the treatment of diseases associated with amyloid deposits of A? in the brain of a patient, such as Alzheimer's disease. Such methods entail administering an immunogenic fragment of A?, lacking a T-cell epitope, capable of inducing a beneficial immune response in the form of antibodies to A?. In another aspect, the immunogenic fragment of A? is capable of elevating plasma A? levels. The immunogenic fragments comprise linear or multivalent peptides of A?. Pharmaceutical compositions comprise the immunogenic fragment chemically linked to a carrier molecule which may be administered with an adjuvant.
    Type: Application
    Filed: May 1, 2006
    Publication date: April 16, 2009
    Inventors: Victor M. Garsky, Joseph G. Joyce, Paul M. Keller, Gene Kinney, Xiaoping Liang, John W. Shiver
  • Publication number: 20080175835
    Abstract: The present invention relates to antibodies that differentially recognize multi-dimensional conformations of A?-derived diffusible ligands, also known as ADDLs. The antibodies of the invention can distinguish between Alzheimer's Disease and control human brain extracts and are useful in methods of detecting ADDLs and diagnosing Alzheimer's Disease. The present antibodies also block binding of ADDLs to neurons, assembly of ADDLs, and tauphosphorylation and are there useful in methods for the preventing and treating diseases associated with soluble oligomers of amyloid ? 1-42.
    Type: Application
    Filed: October 21, 2005
    Publication date: July 24, 2008
    Applicants: Merck & Co., Inc., Northwestern University
    Inventors: Paul Acton, Zhigiang An, Andrew J. Bett, Robert Breese, Elizabeth Chen Dodson, Gene Kinney, William L. Klein, Mary P. Lambert, Xiaoping Liang, Paul Shughrue, William R. Strohl, Kirsten Viola, Lei Chang
  • Publication number: 20060228349
    Abstract: The present invention relates to antibodies that differentially recognize multi-dimensional conformations of A?-derived diffusible ligands, also known as ADDLs. The antibodies of the invention can distinguish between Alzheimer's Disease and control human brain extracts and are useful in methods of detecting ADDLs and diagnosing Alzheimer's Disease. The present antibodies also block binding of ADDLs to neurons, assembly of ADDLS, and tau phosphorylation and are there useful in methods for the preventing and treating diseases associated with soluble oligomers of amyloid ?1-42.
    Type: Application
    Filed: October 21, 2005
    Publication date: October 12, 2006
    Inventors: Paul Acton, Zhiqiang An, Andrew Bett, Robert Breese, Lei Chang, Elizabeth Dodson, Gene Kinney, William Klein, Mary Lambert, Xiaoping Liang, Paul Shughrue, William Strohl, Kirsten Viola
  • Publication number: 20060165664
    Abstract: An efficient means of inducing an immune response against human immunodeficiency virus (HIV) utilizing specific prime-boost regimes is disclosed. The specific prime-boost regimes employ a heterologous prime-boost protocol employing recombinant adenoviral vectors of alternative and distinct serotypes comprising exogenous genetic material encoding a common HIV antigen. Vaccines administered into living vertebrate tissue in accordance with the disclosed regimes, preferably a mammalian host, such as a human or a non-human mammal of commercial or domestic veterinary importance, express the HIV-1 antigen (e.g., Gag), inducing a cellular immune response which specifically recognizes HIV-1. It is believed that the disclosed prime/boost regime will offer a prophylactic advantage to previously uninfected individuals and/or provide a therapeutic effect by reducing viral load levels within an infected individual, thus prolonging the asymptomatic phase of HIV-1 infection.
    Type: Application
    Filed: March 12, 2003
    Publication date: July 27, 2006
    Inventors: Emilio Emini, John Shiver, Danilo Casimiro, Andrew Bett, Xiaoping Liang, Tong-Ming Fu
  • Publication number: 20050215508
    Abstract: Pharmaceutical compositions which comprise HIV Nef DNA vaccines are disclosed, along with the production and use of these DNA vaccines. The nef-based DNA vaccines of the invention are administered directly introduced into living vertebrate tissue, preferably humans, and express the HIV Nef protein or biologically relevant portions thereof, inducing a cellular immune response which specifically recognizes human immunodeficiency virus-1 (HIV-1). The DNA molecules which comprise the open reading frame of these DNA vaccines are synthetic DNA molecules encoding codon optimized HIV-1 Nef and derivatives of optimized HIV-1 Nef, including nef modifications comprising amino terminal leader peptides, removal of the amino terminal myristylation site, and/or modification of the Nef dileucine motif. These modifications may effect wild type characteristics of Nef, such as myristylation and down regulation of host CD4.
    Type: Application
    Filed: March 16, 2005
    Publication date: September 29, 2005
    Inventors: John Shiver, Xiaoping Liang, Tong-Ming Fu
  • Publication number: 20050106123
    Abstract: An efficient means of inducing an immune response against human immunodeficiency virus (“HIV”) utilizing specific prime-boost regimes is disclosed. The specific prime-boost regimes employ a heterologous prime-boost protocol wherein recombinant adenoviral and poxvirus vectors comprising exogenous genetic material encoding a common HIV antigen are administered in that order. Vaccines administered into living vertebrate tissue in accordance with the disclosed regimes, preferably a mammalian host such as a human or a non-human mammal of commercial or domestic veterinary importance, express the HIV-1 antigen (e.g., Gag), inducing a cellular immune response which specifically recognizes HIV-1. It is believed that the disclosed prime/boost regime will offer a prophylactic advantage to previously uninfected individuals and/or provide a therapeutic effect by reducing viral load levels within an infected individual, thus prolonging the asymptomatic phase of HIV-1 infection.
    Type: Application
    Filed: March 12, 2003
    Publication date: May 19, 2005
    Inventors: Emilio Emini, John Shiver, Michael Chastain, Danilo Casimiro, Tong-Ming Fu, Xiaoping Liang
  • Publication number: 20040223976
    Abstract: The present invention provides vaccines against disease caused by infection with influenza virus, and methods of vaccination. The vaccines comprise peptides derived from the M2 and/or HA proteins of influenza virus conjugated to a carrier protein.
    Type: Application
    Filed: March 5, 2004
    Publication date: November 11, 2004
    Inventors: Elisabetta Bianchi, Victor M. Garsky, Paolo Ingallinella, Roxana Ionescu, Xiaoping Liang, Antonello Pessi, Craig T. Przysiecki, Li Shi, John W. Shiver
  • Publication number: 20030096778
    Abstract: Pharmaceutical compositions which comprise HIV Nef DNA vaccines are disclosed, along with the production and use of these DNA vaccines. The nef-based DNA vaccines of the invention are administered directly introduced into living vertebrate tissue, preferably humans, and express the HIV Nef protein or biologically relevant portions thereof, inducing a cellular immune response which specifically recognizes human immunodeficiency virus-1 (HIV-1). The DNA molecules which comprise the open reading frame of these DNA vaccines are synthetic DNA molecules encoding codon optimized HIV-1 Nef and derivatives of optimized HIV-1 Nef, including nef modifications comprising amino terminal leader peptides, removal of the amino terminal myristylation site, and/or modification of the Nef dileucine motif. These modifications may effect wild type characteristics of Nef, such as myristylation and down regulation of host CD4.
    Type: Application
    Filed: June 13, 2002
    Publication date: May 22, 2003
    Inventors: John W Shiver, Xiaoping Liang, Tong-Ming Fu
  • Patent number: 6086902
    Abstract: Vaccines compositions comprising a pharmaceutically acceptable vehicle and a mutant bovine herpesvirus 1 (BHV-1) wherein (i) at least one non-essential gene of wild-type BHV-1 is deleted and optionally replaced with a gene selected from the group consisting of a foreign gene, a gene encoding a BHV-1 immunogen and a mutant analog of a gene encoding a BHV-1 immunogen; and wherein (ii) the replacement gene is optionally under the control of a promoter; and further wherein (iii) at least one essential gene of wild-type BHV-1 is optionally mutated are provided. Vaccines compositions comprising a pharmaceutically acceptable vehicle and a bovine herpesvirus 1 (BHV-1) wherein at (i) least one non-essential gene is deleted or (ii) an essential gene is mutated are also provided. In addition, related vectors, DNA constructs, a diagnostic assay and methods for treating and preventing BHV-1 infection and other bacterial and viral pathogens of cattle are provided.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: July 11, 2000
    Assignee: University of Saskatchewan
    Inventors: Timothy Zamb, Xiaoping Liang, Lorne A. Babiuk