Patents Assigned to Chiron Corporation
  • Patent number: 6783929
    Abstract: Provided are affinity support materials having intermediate binding affinity for biological samples. Among the materials provided by the present invention are hydrophilic solid supports composed of hydrophilic ligands coupled to hydrophilic matrixes which are compatible with biological samples, for example, a cell line, a biological fluid such as blood, or a tissue cell lysate. The ligands may include affinity property groups and hydrophilic groups pendent from a backbone, and be configured to at least partially resolve components of a biological sample. Affinity supports in accordance with the present invention may be used in a variety of techniques and apparatuses to achieve improved separations of complex biological samples and thereby enhance the results of biological sample component fractionations, enrichments, purifications, expression product determinations and comparisons, and other biological sample processing techniques.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: August 31, 2004
    Assignee: Chiron Corporation
    Inventors: Ronald N. Zuckermann, Eric Beausoleil, Matthew Wachowicz, Srinivas Kothakota
  • Patent number: 6774237
    Abstract: Organic compounds having the formulas I and II are provided where the variables have the values described herein. Pharmaceutical formulations include the organic compounds or pharmaceutically acceptable salts thereof and a pharmaceutically acceptable carrier and may be prepared by mixing the organic compounds or pharmaceutically acceptable salts of the organic compounds with a carrier and water. A method of treating a patient includes administering a pharmaceutical formulation according to the invention to a patient in need thereof.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: August 10, 2004
    Assignee: Chiron Corporation
    Inventors: Paul A. Renhowe, Sabina Pecchi, Timothy D. Machajewski, Cynthia M. Shafer, Clarke Taylor, William R. McCrea, Jr., Christopher McBride, Elisa Jazan
  • Publication number: 20040146529
    Abstract: Chimeric antigens derived from hepatitis B virus (HBV) and hepatitis C virus (HCV) are described which form virus-like particles when co-expressed with an excess of hepatitis B virus surface antigen (HBsAg). The chimeric antigens are fusion proteins containing an immunogenic peptide derived from an HCV protein coupled to the amino terminus of HBsAg. Also described are nucleic acid constructs and vectors for transfection of cells and expression of the chimeric antigens. The invention further provides methods for producing HBV/HCV virus-like particles containing the chimeric antigens, cell lines for producing the virus-like particles, combination vaccines containing the virus-like particles, and DNA vaccines that express the virus-like particles.
    Type: Application
    Filed: November 17, 2003
    Publication date: July 29, 2004
    Applicant: Chiron Corporation
    Inventors: Mark Selby, Edward Glazer, Michael Houghton
  • Patent number: 6767699
    Abstract: Methods of production and purification for viruses and virus-derived vectors, including those related to alphaviruses, are disclosed. In one aspect, methods of purification that subject alphavirus replicon particle preparations to one or more steps of chromatographic purification, such as using an ion exchange resin, are provided. Also disclosed are methods of characterizing alphavirus replicon particles and utilizing these materials for vaccines and gene-based therapeutics.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: July 27, 2004
    Assignee: Chiron Corporation
    Inventors: John M. Polo, Catherine Greer, Thomas W. Dubensky, Jr.
  • Publication number: 20040137579
    Abstract: Recombinant protein complexes having human Factor VIII:C activity are expressed in a eukaryotic host cell by transforming the host cell with first and second expression cassettes encoding a first polypeptide substantially homologous to human Factor VIII:C A domain and a second polypeptide substantially homologous to human Factor VIII:C C domain, respectively. In the present invention, the first polypeptide may be extended having at its C-terminal a human Factor VIII:C B domain N-terminal peptide, a polypeptide spacer of 3-40 amino acids, and a human Factor VIII:C B domain C-terminal peptide. Expression of the second polypeptide is improved by employing an &agr;1-antitrypsin signal sequence.
    Type: Application
    Filed: December 1, 2003
    Publication date: July 15, 2004
    Applicants: Chiron Corporation, Novo Nordisk A/S
    Inventors: Barbara Chapman, Rae Lyn Burke, Mirella Ezban Rasmussen, Jan Mollar Mikkelson
  • Publication number: 20040138123
    Abstract: The present invention relates to a keratinocyte growth factor fragment, KGFdex1-23, or an analog thereof that is composed of a portion of an amino acid sequence of mature, full length keratinocyte growth factor, KGF163. The fragment exhibits at least a 2-fold increase in mitogenic activity as compared to a mature, recombinant keratinocyte growth factor, rKGF, but lacks a sequence comprising the first 23 amino acid residues; C-N-D-M-T-P-E-Q-M-A-T-N-V-N-C-S-S-P-E-R-H-T-R- (SEQ ID NO: 2) of the KGF163 N-terminus. The present invention also relates to a DNA molecule encoding KGFdes1-23, an expression vector and a transformed host containing the DNA molecule, and a method of producing KGFdes1-23 by culturing the transformed host. The present invention further relates to a conjugate of KGFdes1-23 and a toxin molecule, and the use thereof for treatment of hyperproliferative disease of the epidermis.
    Type: Application
    Filed: November 4, 2003
    Publication date: July 15, 2004
    Applicant: Chiron Corporation
    Inventors: Denis J. Gospodarowicz, Frank R. Masiarz
  • Publication number: 20040137569
    Abstract: The invention provides polynucleotides encoding Notch receptor ligands, encoded polypeptides, and antibodies specific to the polypeptides. Also provided are methods and compositions for enhancing or inhibiting angiogenesis as well as modulating immune responses.
    Type: Application
    Filed: August 20, 2003
    Publication date: July 15, 2004
    Applicant: Chiron Corporation
    Inventors: Vivien Chan, Michael Rohan, Lewis T. Williams
  • Patent number: 6762194
    Abstract: Organic compounds having the formulas I and II are provided where the variables have the values described herein. Pharmaceutical formulations include the organic compounds or pharmaceutically acceptable salts thereof and a pharmaceutically acceptable carrier and may be prepared by mixing the organic compounds or pharmaceutically acceptable salts of the organic compounds with a carrier and water. A method of treating a patient includes administering a pharmaceutical formulation according to the invention to a patient in need thereof.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: July 13, 2004
    Assignee: Chiron Corporation
    Inventors: Paul A. Renhowe, Sabina Pecchi, Timothy D. Machajewski, Cynthia M. Shafer, Clarke Taylor, William R. McCrea, Jr., Christopher McBride, Eliza Jazan
  • Publication number: 20040131555
    Abstract: A patient suffering from an endobronchial infection is treated by administering to the patient for inhalation a dose of less than about 4.0 ml of a nebulized aerosol formulation comprising from about 60 to about 200 mg/ml of an aminoglycoside antibiotic, such as tobramycin, in a physiologically acceptable carrier in a time period of less than about 10 minutes. Unit dose devices for storage and delivery of the aminoglycoside antibiotic formulations are also provided.
    Type: Application
    Filed: December 22, 2003
    Publication date: July 8, 2004
    Applicant: Chiron Corporation
    Inventors: Robert John Speirs, Barbara Ann Schaeffler, Peter Bruce Challoner
  • Patent number: 6759417
    Abstract: Organic compounds having the structural formulas I, II, and III are provided where the variables have the values described herein and R1 and R2 in structure I join together to form a 5 to 7 membered substituted or unsubstituted ring including at least one O, N, or S atom, and Z is an O, S, NH or NR group in structures I and II. Pharmaceutical formulations include the organic compound or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier. A method of treating a patient includes administering a pharmaceutical formulation according to the invention to a patient in need thereof.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: July 6, 2004
    Assignee: Chiron Corporation
    Inventors: Paul A. Renhowe, Cynthia M. Shafer
  • Patent number: 6756484
    Abstract: Disclosed is an improved process for obtaining purified, monomeric, intact, correctly-folded insulin-like growth factor-I (also known as somatomedin-C). The improvements, consisting primarily of the addition of an IGF-I unfolding/refolding step and the substitution of a reverse phase chromatography step for a gel filtration chromatography step result in a three-fold increase in final yield. The process includes the following steps, in order: first cation exchange, unfolding/refolding, hydrophobic interaction chromatography, second cation exchange, and reverse phase chromatography.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: June 29, 2004
    Assignees: Cephalon, Inc., Chiron Corporation
    Inventors: Russell A. Brierley, Joan N. Abrams, John M. Hanson, Francis C. Maslanka, Cynthia Cowgill, Luis G. Juarbe-Osorio, Patricio Riquelme, Glenn Dorin
  • Patent number: 6756383
    Abstract: Organi c compounds having the structural formulas I, II, and III are provided where the variables have the values described herein and R1 and R2 in structure I join together to form a 5 to 7 membered substituted or unsubstituted ring including at least one O, N, or S atom, and Z is an O, S, NH or NR group in structures I and II. Pharmaceutical formulations include the organic compound or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier. A method of treating a patient includes administering a pharmaceutical formulation according to the invention to a patient in need thereof.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: June 29, 2004
    Assignee: Chiron Corporation
    Inventors: Paul A. Renhowe, Timothy D. Machajewski, Cynthia M. Shafer, Mary Ellen Wernette Hammond, Sabina Pecchi
  • Patent number: 6756359
    Abstract: Antimicrobial macrolide compounds are provided having formulas II: as well as pharmaceutically acceptable salts, esters or prodrugs thereof; pharmaceutical compositions comprising such compounds; methods of treating bacterial infections by the administration of such compounds; and processes for the preparation of the compounds.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: June 29, 2004
    Assignee: Chiron Corporation
    Inventors: Daniel Chu, Matthew Burger, Xiaodong Lin, Georgia Law Carroll, Jacob Plattner, Alice Rico
  • Patent number: 6753015
    Abstract: Microparticles with adsorbed complexes of macromolecule and detergent, methods of making such microparticles, and uses thereof, are disclosed. The microparticles comprise a polymer, such as a poly(&agr;-hydroxy acid), a polyhydroxy butyric acid, a polycaprolactone, a polyorthoester, a polyanhydride, and the like, and are formed using cationic, anionic, or nonionic detergents. The surfaces of the microparticles have adsorbed thereon a complex of biologically active macromolecules, such as nucleic acids, polypeptides, antigens, and adjuvants, and a detergent. Preferred polymers are poly(D,L-lactide-co-glycolides), more preferably those having a lactide/glycolide molar ratio ranging from 40:60 to 60:40 and having a molecular weight ranging from 30,000 Daltons to 70,000 Daltons. Preferred macromolecules are bacterial and viral antigens (such as HIV antigens, meningitis B antigens, streptococcus B antigens, and Influenza A hemagglutinin antigens) as well as polynucleotides that encode for such antigens.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: June 22, 2004
    Assignee: Chiron Corporation
    Inventors: Jia-Hwa Fang, Mammohan Singh, Derek O'Hagan, Maninder Hora
  • Publication number: 20040115169
    Abstract: Improved methods for purification and recovery of interferon-beta (IFN-&bgr;) and compositions comprising substantially monomeric IFN-&bgr; are provided. In one purification method, substantially purified IFN-&bgr; or variant thereof is precipitated and then dissolved in a guanidine hydrochloride (HCl) solution. Renaturation of the protein occurs by dilution with a suitable buffer. A similar purification method absent the precipitation step is also provided. Following renaturation of the IFN-&bgr;, residual guanidine HCl is removed by diafiltration or dialysis with a pharmaceutically acceptable buffer to prepare pharmaceutical compositions comprising substantially monomeric IFN-&bgr;.
    Type: Application
    Filed: December 31, 2003
    Publication date: June 17, 2004
    Applicant: Chiron Corporation
    Inventors: Sidney N. Wolfe, Bret A. Shirley, Susan Babuka, Dennis Fordham, Irina Esikova
  • Publication number: 20040110185
    Abstract: A new human hypothalmic receptor has been identified, and the amino acid and nucleotide sequence of the receptor are provided. The nucleotide sequence is useful to construct expression cassettes and vectors to produce host cells which are capable of expressing the receptor, its mutants, fragments, or fusions. Such polypeptides are useful for identifying new agonists and antagonists.
    Type: Application
    Filed: June 30, 2003
    Publication date: June 10, 2004
    Applicant: Chiron Corporation
    Inventor: David Duhl
  • Patent number: 6743602
    Abstract: The present invention features human HX2004-6 polypeptide and nucleotide sequences encoding HX2004-6 polypeptides. In a particular aspect, the polynucleotide is the nucleotide sequence of SEQ ID NO:1. In related aspects the invention features expression vectors and host cells comprising polynucleotides that encode a human HX2004-6 polypeptide. The present invention also relates to antibodies that bind specifically to a human HX2004-6 polypeptide. Further provided are diagnostic and screening methods using HX2004-6 polynucleotides and antibodies specific for HX2004-6 polypeptides.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: June 1, 2004
    Assignee: Chiron Corporation
    Inventor: Giulia C. Kennedy
  • Patent number: 6743815
    Abstract: Isoxazole estrogen receptor agonist and antagonist compounds having unexpected and surprising activity in modulating estrogen receptor activity are described. In addition, methods and compositions for treating or preventing estrogen receptor-mediated disorders are disclosed. The compounds, methods, and compositions of the invention have utility in preventing or treating estrogen receptor-mediated disorders such as osteoporosis, breast and endometrial cancers, atherosclerosis, and Alzheimer's disease.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: June 1, 2004
    Assignee: Chiron Corporation
    Inventors: Verena D. Huebner, Xiaodong Lin, Ian James, Liya Chen, Manoj Desai, Jennifer C. Moore, Beata Krywult, Thayalan Navaratnam, Rajinder Singh, Rob Trainor, Liang Wang
  • Patent number: 6740323
    Abstract: Chimeric antigens derived from hepatitis B virus (HBV) and hepatitis C virus (HCV) are described which form virus-like particles when co-expressed with an excess of hepatitis B virus surface antigen (HBsAg). The chimeric antigens are fusion proteins containing an immunogenic peptide derived from an HCV protein coupled to the amino terminus of HBsAg. Also described are nucleic acid constructs and vectors for transfection of cells and expression of the chimeric antigens. The invention further provides methods for producing HBV/HCV virus-like particles containing the chimeric antigens, cell lines for producing the virus-like particles, combination vaccines containing the virus-like particles, and DNA vaccines that express the virus-like particles.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: May 25, 2004
    Assignee: Chiron Corporation
    Inventors: Mark Selby, Edward Glazer, Michael Houghton
  • Publication number: 20040096822
    Abstract: An HCV core antigen and NS3/4a antibody combination assay that can detect both HCV antigens and antibodies present in a sample using a single solid matrix, is provided, as well as immunoassay solid supports for use in the assay.
    Type: Application
    Filed: August 19, 2003
    Publication date: May 20, 2004
    Applicant: Chiron Corporation
    Inventors: David Y. Chien, Phillip Arcangel, Laura Tandeske, Carlos George-Nascimento, Doris Coit, Angelica Medina-Selby