Patents by Inventor Bei Shan
Bei Shan 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).
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Patent number: 7511043Abstract: The present invention provides compounds, pharmaceutical compositions and methods that are useful in modulating the farnesoid X receptor (FXR). As FXR is involved in negatively controlling the expression level of cholesterol 7?-hydroxylase (cyp7a), the rate-limiting enzyme involved in the oxidative metabolism of cholesterol into bile acids, the compounds described herein find utility in treating diseases associated with abnormally high or low cholesterol levels. In certain aspects, the FXR modulators (e.g., antagonists) described herein block the negative feed-back downregulation of cyp7a expression produced by certain cholic acids, the endogenous ligands for FXR. Moreover, as FXR forms heterodimers with the retinoid X receptor (RXR) in some cell types, modulation of the level of FXR activity in cells has a wide range of effects on a variety of biological processes which are mediated by RXR or other RXR-interacting proteins such as PPAR? and PPAR?.Type: GrantFiled: March 4, 2004Date of Patent: March 31, 2009Assignee: Amgen Inc.Inventors: Jonathan Houze, Sharon McKendry, Joshua Gergely, Yi Xia, Bei Shan, Frank Kayser
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Publication number: 20090081182Abstract: The invention provides compounds, pharmaceutical compositions and methods for treating atherosclerosis, coronary heart disease, thrombosis, and for decreasing or prevention of accumulation of cholesterol in a subject by modifying LCAT polypeptide.Type: ApplicationFiled: July 25, 2008Publication date: March 26, 2009Applicant: AMGEN INC.Inventors: Tom BOONE, David P. MEININGER, Margrit SCHWARZ, Bei SHAN, Wenyan SHEN, Mingyue ZHOU
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Publication number: 20080096900Abstract: The invention provides compounds, pharmaceutical compositions and methods for treating atherosclerosis, inflammation, thrombosis and other conditions and for decreasing or prevention of accumulation of cholesterol in a subject by modifying LCAT polypeptide.Type: ApplicationFiled: June 26, 2007Publication date: April 24, 2008Applicant: Amgen Inc.Inventors: Frank Kayser, Marc LaBelle, Bei Shan, Jian Zhang, Mingyue Zhou
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Publication number: 20080009608Abstract: The present invention provides nucleic acids encoding a novel ABC family cholesterol transporter, SSG. The herein-disclosed sequences can be used for any of a number of purposes, including for the diagnosis and treatment of cholesterol-associated disorders, including sitosterolemia, and for the identification of molecules that associate with and/or modulate the activity of SSG.Type: ApplicationFiled: December 27, 2006Publication date: January 10, 2008Applicant: Amgen Inc.Inventors: Hui Tian, Joshua Schultz, Bei Shan
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Patent number: 7229816Abstract: The present invention provides polypeptides of a novel ABC family cholesterol transporter, SSG. The herein-disclosed sequences can be used for any of a number of purposes, including for the diagnosis and treatment of cholesterol-associated disorders, including sitosterolemia, and for the identification of molecules that associate with and/or modulate the activity of SSG.Type: GrantFiled: May 11, 2005Date of Patent: June 12, 2007Assignee: Amgen Inc.Inventors: Hui Tian, Joshua Schultz, Bei Shan
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Patent number: 7138418Abstract: The invention provides methods and compositions relating to novel pentafluorophenylsulfonamide derivatives and analogs and their use as pharmacologically active agents. The compositions find particular use as pharmacological agents in the treatment of disease states, particularly atherosclerosis and hypercholesterolemia, or as lead compounds for the development of such agents.Type: GrantFiled: October 5, 2001Date of Patent: November 21, 2006Assignee: Amgen, Inc.Inventors: John Flygare, Julio C. Medina, Bei Shan, David L. Clark, Terry J. Rosen
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Patent number: 7105313Abstract: The invention provides methods and compositions for screening for pharmacological agents which regulate gene expression in mammals. An exemplary assay involves (a) contacting a mammalian cell comprising a knock-in mutant of a targeted native allele encoding a reporter of gene expression, wherein the expression of the reporter is under the control of the gene expression regulatory sequences of the native allele, with a candidate agent under conditions whereby but for the presence of the agent, the reporter is expressed at a first expression level; and, (b) measuring the expression of the reporter to obtain a second expression level, wherein a difference between the first and second expression levels indicates that the candidate agent modulates gene expression.Type: GrantFiled: February 13, 2003Date of Patent: September 12, 2006Assignee: Amgen Inc.Inventors: Bei Shan, R. Marc Learned, M. Catherine Amaral, Steven L. McKnight, Fabienne C. de la Brousse, Jin-Long Chen
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Patent number: 7101681Abstract: Methods for identifying modulators of nuclear hormone receptor function comprise the steps of (a) forming a mixture comprising a nuclear hormone receptor, a peptide sensor and a candidate agent, but not a natural coactivator protein of the receptor, wherein the sensor provides direct, in vitro binding to the receptor under assay conditions; (b) measuring an agent-biased binding of the sensor to the receptor; and (c) comparing the agent-biased binding with a corresponding unbiased binding of the sensor to the receptor. In particular embodiments, the sensor comprises an amphipathic alpha helix nuclear hormone interacting domain comprising a recited nuclear hormone transcriptional coactivator motif sequence, the sensor is present at sub-micromolar concentration, the binding reaction occurs in solution, the sensor comprises a fluorescent label and the measuring step comprises detecting fluorescence polarization of the label.Type: GrantFiled: September 30, 1998Date of Patent: September 5, 2006Assignee: Amgen, Inc.Inventors: Kevin Lustig, Patrick Baeuerle, Holger Beckmann, Jin-Long Chen, Bei Shan
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Patent number: 7033810Abstract: The present invention provides nucleic acids encoding a novel ABC family cholesterol transporter, SSG. The herein-disclosed sequences can be used for any of a number of purposes, including for the diagnosis and treatment of cholesterol-associated disorders, including sitosterolemia, and for the identification of molecules that associate with and/or modulate the activity of SSG.Type: GrantFiled: April 18, 2001Date of Patent: April 25, 2006Assignee: Amgen Inc.Inventors: Hui Tian, Joshua Schultz, Bei Shan
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Patent number: 6962929Abstract: The invention provides methods and compositions relating to novel pentafluorophenylsulfonamide derivatives and analogs and their use as pharmacologically active agents. The compositions find particular use as pharmacological agents in the treatment of disease states, particularly cancer, vascular restenosis, microbial infections, and psoriasis, or as lead compounds for the development of such agents.Type: GrantFiled: October 11, 2002Date of Patent: November 8, 2005Assignee: Tularik Inc.Inventors: John A. Flygare, Julio Cesar Medina, Bei Shan, David Louis Clark, Terry J. Rosen
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Publication number: 20050214850Abstract: The present invention provides polypeptides of a novel ABC family cholesterol transporter, SSG. The herein-disclosed sequences can be used for any of a number of purposes, including for the diagnosis and treatment of cholesterol-associated disorders, including sitosterolemia, and for the identification of molecules that associate with and/or modulate the activity of SSG.Type: ApplicationFiled: May 11, 2005Publication date: September 29, 2005Applicant: Tularik Inc.Inventors: Hui Tian, Joshua Schultz, Bei Shan
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Patent number: 6906069Abstract: The invention provides compounds, compositions and methods for modulating the effects of LXR? in a cell. The compounds and compositions are useful both as diagnostic indicators of LXR? function and as pharmacologically active agents. The compounds and compositions find particular use in the treatment of disease states associated with cholesterol metabolism, particularly atherosclerosis and hypercholesterolemia.Type: GrantFiled: January 6, 2000Date of Patent: June 14, 2005Assignee: Amgen Inc.Inventors: Leping Li, Julio C. Medina, Bei Shan
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Patent number: 6821750Abstract: The present invention provides nucleic acids encoding a novel ABC family cholesterol transporter, ABCG8. The herein-disclosed sequences can be used for any of a number of purposes, including for the diagnosis and treatment of cholesterol-associated disorders, including sitosterolemia, and for the identification of molecules that associate with and/or modulate the activity of ABCG8.Type: GrantFiled: November 20, 2001Date of Patent: November 23, 2004Assignees: Tularik Inc., Board of Regents, The University of Texas SystemInventors: Helen H. Hobbs, Bei Shan, Robert Barnes, Hui Tian
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Publication number: 20040176426Abstract: The present invention provides compounds, pharmaceutical compositions and methods that are useful in modulating the farnesoid X receptor (FXR). As FXR is involved in negatively controlling the expression level of cholesterol 7&agr;-hydroxylase (cyp7a), the rate-limiting enzyme involved in the oxidative metabolism of cholesterol into bile acids, the compounds described herein find utility in treating diseases associated with abnormally high or low cholesterol levels. In certain aspects, the FXR modulators (e.g., antagonists) described herein block the negative feed-back downregulation of cyp7a expression produced by certain cholic acids, the endogenous ligands for FXR. Moreover, as FXR forms heterodimers with the retinoid X receptor (RXR) in some cell types, modulation of the level of FXR activity in cells has a wide range of effects on a variety of biological processes which are mediated by RXR or other RXR-interacting proteins such as PPAR&ggr; and PPAR&agr;.Type: ApplicationFiled: March 4, 2004Publication date: September 9, 2004Applicant: Tularik, Inc.Inventors: Jonathan Houze, Sharon McKendry, Joshua P. Gergely, Yi Xia, Bei Shan, Frank Kayser
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Patent number: 6777446Abstract: The present invention provides compounds, pharmaceutical compositions and methods that are useful in modulating the farnesoid X receptor (FXR). As FXR is involved in negatively controlling the expression level of cholesterol 7&agr;-hydroxylase (cyp7a), the rate-limiting enzyme involved in the oxidative metabolism of cholesterol into bile acids, the compounds described herein find utility in treating diseases associated with abnormally high or low cholesterol levels. In certain aspects, the FXR modulators (e.g., antagonists) described herein block the negative feed-back downregulation of cyp7a expression produced by certain cholic acids, the endogenous ligands for FXR. Moreover, as FXR forms heterodimers with the retinoid X receptor (RXR) in some cell types, modulation of the level of FXR activity in cells has a wide range of effects on a variety of biological processes which are mediated by RXR or other RXR-interacting proteins such as PPAR&ggr; and PPAR&agr;.Type: GrantFiled: August 31, 2001Date of Patent: August 17, 2004Assignee: Tularik, Inc.Inventors: Jonathan Houze, Sharon McKendry, Joshua P. Gergely, Yi Xia, Bei Shan, Frank Kayser
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Publication number: 20030162817Abstract: The invention provides methods and compositions relating to novel pentafluorophenylsulfonamide derivatives and analogs and their use as pharmacologically active agents. The compositions find particular use as pharmacological agents in the treatment of disease states, particularly cancer, vascular restenosis, microbial infections, and psoriasis, or as lead compounds for the development of such agents.Type: ApplicationFiled: October 11, 2002Publication date: August 28, 2003Applicant: Tularik Inc.Inventors: John A. Flygare, Julio Cesar Medina, Bei Shan, David Louis Clark, Terry J. Rosen
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Publication number: 20030153025Abstract: The invention provides methods and compositions for screening for pharmacological agents which regulate gene expression in mammals. An exemplary assay involves (a) contacting a mammalian cell comprising a knock-in mutant of a targeted native allele encoding a reporter of gene expression, wherein the expression of the reporter is under the control of the gene expression regulatory sequences of the native allele, with a candidate agent under conditions whereby but for the presence of the agent, the reporter is expressed at a first expression level; and, (b) measuring the expression of the reporter to obtain a second expression level, wherein a difference between the first and second expression levels indicates that the candidate agent modulates gene expression.Type: ApplicationFiled: February 13, 2003Publication date: August 14, 2003Applicant: Tularik, Inc.Inventors: Bei Shan, R. Marc Learned, M. Catherine Amaral, Steven L. McKnight, Fabienne Charles de la Brousse, Jin-Long Chen
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Patent number: 6566089Abstract: The invention provides methods and compositions for screening for pharmacological agents which regulate gene expression in mammals. An exemplary assay involves (a) contacting a mammalian cell comprising a knock-in mutant of a targeted native allele encoding a reporter of gene expression, wherein the expression of the reporter is under the control of the gene expression regulatory sequences of the native allele, with a candidate agent under conditions whereby but for the presence of the agent, the reporter is expressed at a first expression level; and, (b) measuring the expression of the reporter to obtain a second expression level, wherein a difference between the first and second expression levels indicates that the candidate agent modulates gene expression.Type: GrantFiled: May 31, 1997Date of Patent: May 20, 2003Assignee: Tularik Inc.Inventors: Bei Shan, R. Marc Learned, M. Catherine Amaral, Steven L. McKnight, Fabienne Charles de la Brousse, Jin-Long Chen
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Patent number: 6555326Abstract: Methods for identifying modulators of nuclear hormone receptor function comprise the steps of (a) forming a mixture comprising a nuclear hormone receptor, a peptide sensor and a candidate agent, but not a natural coactivator protein of the receptor, wherein the sensor provides direct, in vitro binding to the receptor under assay conditions; (b) measuring an agent-biased binding of the sensor to the receptor; and (c) comparing the agent-biased binding with a corresponding unbiased binding of the sensor to the receptor. In particular embodiments, the sensor comprises an amphipathic alpha helix nuclear hormone interacting domain comprising a recited nuclear hormone transcriptional coactivator motif sequence, the sensor is present at sub-micromolar concentration, the binding reaction occurs in solution, the sensor comprises a fluorescent label and the measuring step comprises detecting fluorescence polarization of the label.Type: GrantFiled: November 21, 1997Date of Patent: April 29, 2003Assignee: Tularik Inc.Inventors: Kevin Lustig, Patrick Baeuerle, Holger Beckmann, Jin-Long Chen, Bei Shan
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Publication number: 20030049730Abstract: The present invention provides nucleic acids encoding a novel ABC family cholesterol transporter, ABCG8. The herein-disclosed sequences can be used for any of a number of purposes, including for the diagnosis and treatment of cholesterol-associated disorders, including sitosterolemia, and for the identification of molecules that associate with and/or modulate the activity of ABCG8.Type: ApplicationFiled: November 20, 2001Publication date: March 13, 2003Inventors: Helen H. Hobbs, Bei Shan, Robert Barnes, Hui Tian