Patents Assigned to Xoma Corporation
  • Patent number: 5677180
    Abstract: The present invention relates to a eukaryotic host cell that contains DNA encoding a chimeric antibody molecule comprising two heavy chains and two light chains, each of the chains comprising a variable region and a human constant region, said antibody having specificity for the antigen bound by the 2H7 murine monoclonal antibody. The invention is also related to methods of producing the antibody.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 14, 1997
    Assignee: Xoma Corporation
    Inventors: Randy R. Robinson, Alvin Y. Liu, Jeffrey A. Ledbetter
  • Patent number: 5674834
    Abstract: Disclosed are novel bactericidal/permeability-increasing (BPI) protein products wherein cysteine residue number 132 or 135 is replaced by another amino acid residue, preferably an alanine or serine residue and/or wherein the leucine residue at position 193 is the carboxy terminal residue. Also disclosed are DNA sequences encoding methods for the production of the same in appropriate host cells, and stable homogeneous pharmaceutical compositions containing the analogs suitable for use treatment of gram negative bacterial infection and its sequelae.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: October 7, 1997
    Assignee: XOMA Corporation
    Inventors: Georgia Theofan, Arnold Horwitz, David Burke, Manik Baltaian, Lynn Grinna
  • Patent number: 5646114
    Abstract: The present invention relates to methods for treating protozoan infections comprising administering to a subject suffering from protozoan infection, a bacteriocidal/permeability-inducing (BPI) protein product.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: July 8, 1997
    Assignee: XOMA Corporation
    Inventor: Lewis H. Lambert, Jr.
  • Patent number: 5643570
    Abstract: Disclosed are novel hybrid fusion proteins comprising at their amino terminus, bactericidal/permeability-increasing protein or a biologically active fragment thereof and, at their carboxy terminus, at least one immunoglobulin heavy chain constant domain useful in treating bacterial infection. Also disclosed are DNA sequences encoding such proteins, recombinant methods for production of the proteins, and pharmaceutical preparations containing the recombinant products.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: July 1, 1997
    Assignee: XOMA Corporation
    Inventors: Georgia Theofan, Lynn S. Grinna, Arnold Horwitz
  • Patent number: 5639727
    Abstract: The present invention provides therapeutic methods for treatment of conditions including the neutralization of the anti-coagulant activity of heparin, inhibition of angiogenesis, tumor and endothelial cell proliferation, and treatment of chronic inflammatory diseases by administration of bactericidal/permeability-increasing (BPI) protein products.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: June 17, 1997
    Assignee: XOMA Corporation
    Inventor: Roger G. Little, II
  • Patent number: 5627153
    Abstract: The present invention relates to methods for treating fungal infection comprising administering to a subject suffering from a fungal infection a bactericidal/permeability-inducing (BPI) protein product.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: May 6, 1997
    Assignee: Xoma Corporation
    Inventors: Roger G. Little, II, Edward Lim, Patrick J. Scannon, Lewis J. Lambert, Jr.
  • Patent number: 5621083
    Abstract: The present invention provides purified and isolated polynucleotides encoding Type I ribosome-inactivating proteins (RIPs) and analogs of the RIPs having a cysteine available for disulfide bonding to targeting molecules. Vectors comprising the polynucleotides and host cells transformed with the vectors are also provided. The RIPs and RIP analogs are particularly suited for use as components of cytotoxic therapeutic agents of the invention which include gene fusion products and immunoconjugates. Cytotoxic therapeutic agents or immunotoxins according to the present invention may be used to selectively eliminate any cell type to which the RIP component is targeted by the specific binding capacity of the second component of the agent, and are suited for treatment of diseases where the elimination of a particular cell type is a goal, such as autoimmune disease, cancer and graft-versus-host disease.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: April 15, 1997
    Assignee: XOMA Corporation
    Inventors: Marc D. Better, Stephen F. Carroll, Gary M. Studnicka
  • Patent number: 5618920
    Abstract: The invention relates to the secretion of heavy chain immunoglobulin fragments and light chain immunoglobulins from prokaryotic hosts using a prokaryotic secretion signal peptide wherein the heavy chain fragments and light chains are capable of associating to form an antigen binding antibody fragment.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: April 8, 1997
    Assignee: Xoma Corporation
    Inventors: Randy R. Robinson, Alvin Y. Liu, Arnold H. Horwitz, Marc Better, Randolph Wall, Shau-Ping Lei, Gary L. Wilcox
  • Patent number: 5595898
    Abstract: The invention relates to cDNA genetic sequences, vehicles containing same as well as hosts transformed therewith, for the production of chimeric immunoglobulin molecules, functional fragments thereof and immunoglobulin derivatives exhibiting novel functional properties comprising human constant region modules and non-human variable region modules, or for class switching antibody molecules and/or chains.The invention also relates to DNA coding for pectate lyase signal peptide has been cloned on a plasmid to create a secretion vector which is capable of producing a chosen protein which is transported across the bacterial membrane. The secretion vector has been used to secrete extracellular thaumatin and extracellular chimeric antibody fragments. The proteins produced by this vector have biological activity. The thaumatin is properly folded and the antibody fragments are capable-of binding antigens on target cancer cells.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: January 21, 1997
    Assignee: Xoma Corporation
    Inventors: Randy R. Robinson, Alvin Y. Liu, Arnold H. Horwitz, Marc Better, Randolph Wall, Shau-Ping Lei, Gary L. Wilcox
  • Patent number: 5578572
    Abstract: The present invention relates to methods of treating gram-positive bacterial infections by administration of a BPI protein product alone, or in combination with an antibiotic. BPI protein product alone has a bactericidal or growth inhibitory effect on selected gram-positive organisms. BPI protein product also increases the susceptibility of gram-positive organisms to antibiotics and can even reverse resistance of gram-positive organisms to antibiotic.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: November 26, 1996
    Assignee: Xoma Corporation
    Inventors: Arnold Horwitz, Lewis H. Lambert, Jr., Roger G. Little, II
  • Patent number: 5578568
    Abstract: The present invention provides methods of treating adverse physiological effects associated with intestinal ischemia reperfusion by administering to a subject suffering from the effects of intestinal ischemia reperfusion an effective amount of a BPI protein product.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: November 26, 1996
    Assignee: XOMA Corporation
    Inventors: William S. Ammons, K aroly M. M esz aros
  • Patent number: 5576184
    Abstract: Gene expression elements and their use in production of chimeric antibodies with human constant regions and murine variable regions, and mouse human chimeric antibodies having specificity to human tumor cells, methods of their production, and their use.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: November 19, 1996
    Assignee: Xoma Corporation
    Inventors: Marc D. Better, Arnold H. Horwitz, Randy R. Robinson, Shau-Ping Lei, Changtung P. Chang
  • Patent number: 5576195
    Abstract: The invention relates to DNA coding for a pectate lyase signal peptide which has been inserted into plasmids to create secretion vectors which are capable of producing a chosen protein by directing transport across the bacterial membrane. The secretion vectors have been used to secrete extracellular thaumatin and extracellular antibody fragments. The proteins produced by these vectors have biological activity. The thaumatin is properly folded and the antibody fragments are capable of binding antigens on target cancer cells.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: November 19, 1996
    Assignee: Xoma Corporation
    Inventors: Randy R. Robinson, Marc Better, Shau-Ping Lei, Gary L. Wilcox
  • Patent number: 5523288
    Abstract: The present invention relates to methods and compositions for treating gram-negative bacterial infections, using BPI protein products. Co-treatment, or concurrent administration, of BPI protein product with an antibiotic in treatment of gram-negative bacterial infections improves the therapeutic effectiveness of the antibiotic, including increasing antibiotic susceptibility of gram-negative bacteria and reversing resistance of the bacteria to antibiotics.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: June 4, 1996
    Assignee: Xoma Corporation
    Inventors: Jonathan Cohen, Ada H. C. Kung, Lewis H. Lambert, Jr., Roger G. Little, II
  • Patent number: 5508263
    Abstract: The present invention provides osteogenically active protein preparations comprising a heterodimer of P3 OF 31-34 subunit B and P3 OF 31-34 subunit D, which subunits are linked with at least one disulfide bond and methods for their preparation. The invention further provides cell lines transformed with nucleotide sequences encoding P3 OF 31-34 subunit B and P3 OF 31-34 subunit D and vectors comprising those sequences in operative association with an expression control sequence.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: April 16, 1996
    Assignee: Xoma Corporation
    Inventors: Lynn Grinna, Georgia Theofan, Thomas F. Parsons
  • Patent number: 5500362
    Abstract: The present invention relates to a chimeric IgG1 antibody molecule comprising two heavy chains and two light chains, each of the chains comprising a human constant region and a variable region, said antibody having specificity for the antigen bound by the 2H7 murine monoclonal antibody. The invention also relates to the increased ADCC and CDC cytolytic activities of the chimeric antibody, methods of production by recombinant DNA techniques, and uses.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: March 19, 1996
    Assignee: XOMA Corporation
    Inventors: Randy R. Robinson, Alvin Y. Liu, Jeffrey A. Ledbetter
  • Patent number: 5494896
    Abstract: The present invention provides methods of preventing or treating conditions associated with burn injuries by administering bactericidal/permeability-increasing (BPI) protein product.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: February 27, 1996
    Assignee: XOMA Corporation
    Inventor: John F. Hansbrough
  • Patent number: 5488034
    Abstract: Bactericidal/permeability increasing (BPI) polypeptide pharmaceutical compositions having improved stability and resistance to aggregation, particle formation and precipitation comprising the polypeptide pharmaceutical and poloxamer surfactants alone, or in combination with polysorbate suractants. Preferred BPI polypeptides stabilized are bactericidal/permeability increasing (BPI) protein, biologically active fragments of BPI, and biologically active analogs of BPI.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: January 30, 1996
    Assignee: XOMA Corporation
    Inventors: Weldon C. McGregor, James Stubstad, C. Paul Chang
  • Patent number: 5484705
    Abstract: The present invention provides a method for quantifying the presence of extracellular LBP in body fluids including blood in a subject comprising conducting an LBP immunoassay on plasma obtained from said subject.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: January 16, 1996
    Assignee: XOMA Corporation
    Inventors: Mark L. White, Stephen F. Carroll, Jeremy K. Ma
  • Patent number: 5466580
    Abstract: The present invention provides a method for quantifying the presence of extracellular BPI in body fluids including blood in a subject comprising conducting a BPI immunoassay on plasma obtained from said subject.
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: November 14, 1995
    Assignee: XOMA Corporation
    Inventors: Mark L. White, Stephen F. Carroll, Jeremy K. Ma