Patents Represented by Attorney Ling-Fong Chung
-
Patent number: 5977323Abstract: Two novel cytokines which are involved in an inflammatory response (inflammatory cytokines) are disclosed. The inflammatory cytokines have been isolated from activated peripheral blood, preferably monocytes adhered to plastic; or peripheral blood leukocytes induced with calcium ionophore and mezerin. The two cytokines are Gro .beta. and .gamma., and their cDNA and amino acid sequences are disclosed. The expression of the genes in various cells is presented. Assay and diagnostic utilities using the cytokines; recombinant materials and procedures; purification procedures; and monoclonal antibodies to the cytokines are also shown.Type: GrantFiled: June 7, 1995Date of Patent: November 2, 1999Assignees: Chiron Corporation, University of North Carolina at Chapel HillInventors: John Stephen Haskill, Peter Ralph, Danute E. Nitecki, George Martin
-
Patent number: 5858688Abstract: Two novel cytokines which are involved in an inflammatory response (inflammatory cytokines) are disclosed. The inflammatory cytokines have been isolated from activated peripheral blood, preferably monocytes adhered to plastic; or peripheral blood leukocytes induced with calcium ionophore and mezerin. The two cytokines are Gro .beta. and .gamma., and their cDNA and amino acid sequences are disclosed. The expression of the genes in various cells is presented. Assay and diagnostic utilities using the cytokines; recombinant materials and procedures; purification procedures; and monoclonal antibodies to the cytokines are also shown.Type: GrantFiled: June 7, 1995Date of Patent: January 12, 1999Assignees: Chiron Corporation, University of North Carolina at Chapel HillInventors: John Stephen Haskill, Peter Ralph, Danute E. Nitecki, George Martin
-
Patent number: 5814485Abstract: Methods for the production of interferon-.beta. polypeptides by bacterial cells, by culturing cells capable of producing IFN-.beta. polypeptide under conditions that induce increased production of IFN-.beta. polypeptide. Such conditions include, for example, low potassium cation concentration and/or very low sodium cation concentration and/or specific pH ranges.Type: GrantFiled: June 6, 1995Date of Patent: September 29, 1998Assignee: Chiron CorporationInventors: Glenn Dorin, Patrick J. McAlary, Kathleen M. Wong
-
Patent number: 5814484Abstract: Methods for the expression of mammalian MIP-1.alpha. and MIP-1.beta. are disclosed. The methods generally comprise introducing into a yeast cell, a DNA molecule capable of directing the expression and if desired the secretion of either MIP-1.alpha. or MIP-1.beta.. Methods for expression of constructs encoding both MIP-1.alpha. and MIP-1.beta. are also described. The MIP molecules so produced are biologically active.Type: GrantFiled: January 31, 1995Date of Patent: September 29, 1998Inventors: Patricia Tekamp-Olson, Carol Ann Gallegos
-
Patent number: 5773223Abstract: A new endothelin B 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 endothelin agonists and antagonists.Type: GrantFiled: September 2, 1993Date of Patent: June 30, 1998Assignee: Chiron CorporationInventors: Venkatakrishna Shyamala, Patricia Tekamp Olson
-
Patent number: 5747458Abstract: Compounds of the invention inhibit urokinase plasminogen activator: ##STR1## where R.sub.1 is lower alkyl, lower alkenyl, lower alkynyl, aryl, aralkyl, aryl-alkenyl, aryl-alkynyl, aryl-cycloalkyl, unsubstituted or substituted with 1-3 halo, OH, NH.sub.2, lower alkyl, halo-lower alkyl, lower alkoxy, lower alkylamino, lower alkylthio, CN or NO.sub.2 ;R.sub.2 is aryl or aralkyl, unsubstituted or substituted with 1-3 halo, OH, NH.sub.2, CN, NO.sub.2, lower alkyl, halo-lower alkyl, lower alkoxy, lower alkylamino, lower alkylthio, or cycloalkyl;R.sub.3, R.sub.5 and R.sub.9 are each independently H or lower alkyl;R.sub.4 is ##STR2## where R.sub.6 and R.sub.7 are each independently H, OH, NH.sub.2, CN, NO.sub.2, lower alkyl, halo-lower alkyl, lower alkoxy, lower alkylamino, lower alkylthio, or cycloalkyl, and n and m are each independently an integer from 1 to 3 inclusive; and pharmaceutically acceptable acid addition salts thereof.Type: GrantFiled: June 7, 1995Date of Patent: May 5, 1998Assignee: Chiron CorporationInventors: Steve Rosenberg, Kerry L. Spear, Eric J. Martin
-
Patent number: 5679782Abstract: Oligonucleotides encoding effective urokinase-type plasminogen activator receptor antagonists have amino acid sequences selected from the group AEPMPHSLNFSQYLWYT, AEWHPGLSFGSYLWSKT, AEHTYSSLWDTYSPLAF, AESSLWTRYAWPSMPSY, AELDLWMRHYPLSFSNR, AEWSFYNLHLPEPQTIF, AETLFMDLWHDKHILLT, AEPLDLWSLYSLPPLAM, AESLPTLTSILWGKESV, AESQTGTLNTLFWNTLR, AESSLWRIFSPSALMMS, AEPALLNWSFFFNPGLH, AEAWFLSNTMKALSARL, AEPTLWQLYQFPLRLSG, AEISFSELMWLRSTPAF, AEWITSSPPLTQYLWGF, AEMHRSLWEWYVPNQSA, AEIKTDEKMGLWDLYSM, AEILNFPLWHEPLWSTE, AELSEADLWITWFGMGS, AESVQYSKLWKPNTTLA, AEPLSLYQKKTLRHFAN, AELPRTNPVTAVKNPSF, AEQLNRSIPDLQFSMFN, and AESHIKSLLDSSTWFLP, or active analogs or active portions thereof.Type: GrantFiled: May 10, 1995Date of Patent: October 21, 1997Assignee: Chiron CorporationInventors: Steven Rosenberg, Michael V. Doyle
-
Patent number: 5674706Abstract: A method is provided for expressing non-yeast proteins under the control of ADH2 regulatory sequences in a yeast host having enhanced expression of ADR I. Transformed yeast hosts are also provided.Type: GrantFiled: May 15, 1995Date of Patent: October 7, 1997Assignee: Chiron CorporationInventor: Jeffrey R. Shuster
-
Patent number: 5620867Abstract: The purification and cloning of bone morphogenetic proteins are disclosed, as well as production of BMP and its analogs thereof by recombinant DNA techniques. Pharmaceutical compositions comprising BMP and the use of such compositions are also disclosed.Type: GrantFiled: October 26, 1993Date of Patent: April 15, 1997Assignee: Chiron CorporationInventors: Michael C. Kiefer, Frank R. Masiarz, Philip J. Barr
-
Patent number: 5523215Abstract: A method for isolating a desired protein which comprises: providing a host cell expressing the desired protein as an insoluble aggregate; culturing the host cell with an effective mount of Cu.sup.++ ; disrupting the host cell producing a lysate; incubating the insoluble fraction non-disulfide-bond reducing or non-copper competing chaotropic conditions to solubilize contaminants; separating the insoluble from the soluble fraction; and exposing the insoluble fraction to disulfide-bond reducing or copper competing chaotropic conditions to solubilize the desired protein.Type: GrantFiled: April 16, 1992Date of Patent: June 4, 1996Assignee: Chiron CorporationInventors: Lawrence S. Cousens, Patricia Tekamp-Olson
-
Patent number: 5466781Abstract: A process is described for producing M-CSF from bacteria. It includes: fermentation of bacteria containing M-CSF DNA; harvest of the fractions that contain the M-CSF protein (refractile bodies); primary recovery of the protein; solubilization and denaturation of refractile bodies; M-CSF refolding; purification by column chromatography and other methods; and formulation of the properly refolded M-CSF. This method is advantageous over prior methods in terms of yield and purity.Type: GrantFiled: March 8, 1993Date of Patent: November 14, 1995Assignee: Chiron TherapeuticsInventors: Glenn Dorin, David R. Gray, Byeong S. Chang, Cynthia A. Cowgill, Robert J. Milley
-
Patent number: 5330895Abstract: Dopamine releasing protein (DARP) is a protein which stimulates release of dopamine from dopaminergic neurons, and is effective at extremely low concentrations. DARP is useful for stimulating vertebrate nervous systems, and for treatment of Parkinson's disease. Antibodies to DARP are useful for inhibiting dopamine release, and for quantifying the concentration of DARP in samples.Type: GrantFiled: September 17, 1992Date of Patent: July 19, 1994Inventors: Victor D. Ramirez, Frank Marcus
-
Patent number: 5248769Abstract: A refractile material containing a heterologous protein is recovered from a host microorganism cell culture transformed to produce the protein. One recovery process involves first reducing the ionic strength of the culture medium prior to disruption to a level effective in preventing reaggregation of cellular debris with refractile material after disruption, disrupting the desalted culture, optionally adding material to the disruptate to create a density or viscosity gradient and separating the refractile material from the cellular debris by high-speed centrifugation. Preferably the salt removal step is carried out by diafiltration and the heterologous protein comprises recombinant M-CSF, IL-2 or IFN-.beta..Type: GrantFiled: November 25, 1991Date of Patent: September 28, 1993Assignee: Cetus Oncology CorporationInventor: Glenn Dorin