Patents by Inventor Ralph Reisfeld
Ralph Reisfeld 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: 10335420Abstract: An aqueous tumor-targeting liposome nanoparticle composition comprises an aqueous dispersion of liposome nanoparticles. The nanoparticles preferably encapsulate an anti-cancer chemotherapeutic agent, which can be added to a pre-formed liposome composition or can be incorporated in the liposomes during the formation of the liposomes. The liposome nanoparticles comprise a legumain-targeting lipid admixed with one or more other micelle or vesicle-forming lipid materials in the form of nanoparticulate liposomes dispersed in an aqueous carrier. A preferred tumor-targeting liposome nanoparticle composition comprises a legumain-targeting lipid component and polyethylene glycol-conjugated lipid component. The legumain-targeting lipid component comprising a hydrophobic lipid portion covalently attached to a legumain-binding moiety.Type: GrantFiled: April 24, 2017Date of Patent: July 2, 2019Assignee: The Scripps Research InstituteInventors: Ralph A. Reisfeld, Rong Xiang, Yunping Luo, Debbie Liao, Ze Liu, Tingmei Chen, Si Chen, Dan Lu
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Publication number: 20170224838Abstract: An aqueous tumor-targeting liposome nanoparticle composition comprises an aqueous dispersion of liposome nanoparticles. The nanoparticles preferably encapsulate an anti-cancer chemotherapeutic agent, which can be added to a pre-formed liposome composition or can be incorporated in the liposomes during the formation of the liposomes. The liposome nanoparticles comprise a legumain-targeting lipid admixed with one or more other micelle or vesicle-forming lipid materials in the form of nanoparticulate liposomes dispersed in an aqueous carrier. A preferred tumor-targeting liposome nanoparticle composition comprises a legumain-targeting lipid component and polyethylene glycol-conjugated lipid component. The legumain-targeting lipid component comprising a hydrophobic lipid portion covalently attached to a legumain-binding moiety.Type: ApplicationFiled: April 24, 2017Publication date: August 10, 2017Applicant: The Scripps Research InstituteInventors: Ralph A. REISFELD, Rong XIANG, Yunping LUO, Debbie LIAO, Ze LIU, Tingmei CHEN, Si CHEN, Dan LU
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Patent number: 9655815Abstract: A DNA vaccine suitable for eliciting an immune response against cancer cells comprises a DNA construct operably encoding a cancer-associated Inhibitor of Apoptosis-family protein and an immunoactive gene product, such as a cytokine or a ligand for a natural killer cell surface receptor, in a pharmaceutically acceptable carrier. A preferred cytokine is CCL21. Preferred ligands for a natural killer cell surface receptor include human MICA, human MICB, human ULBP1, human ULBP2, and human ULBP3. The cancer-associated Inhibitor of Apoptosis (IAP)-family protein is preferably a survivin protein or livin protein. Method of inhibiting tumor growth by administering the vaccine of the invention to a mammal is also described.Type: GrantFiled: May 5, 2014Date of Patent: May 23, 2017Assignee: The Scripps Research InstituteInventors: Rong Xiang, He Zhou, Ralph A Reisfeld
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Patent number: 9629922Abstract: The present invention provides an aqueous tumor-targeting liposome nanoparticle composition comprising an aqueous dispersion of liposome nanoparticles. The nanoparticles preferably encapsulate an anti-cancer chemotherapeutic agent, which can be added to a pre-formed liposome composition or can be incorporated in the liposomes during the formation of the liposomes. The liposome nanoparticles comprise a legumain-targeting lipid admixed with one or more other micelle or vesicle-forming lipid materials in the form of nanoparticulate liposomes dispersed in an aqueous carrier. A preferred tumor-targeting liposome nanoparticle composition comprises (a) a legumain-targeting lipid component, (b) a zwitterionic lipid component; (c) an amino-substituted lipid component; (d) a neutral lipid component; and (e) polyethylene glycol-conjugated lipid component. The legumain-targeting lipid component comprising a hydrophobic lipid portion covalenetly attached to a legumain-binding moiety.Type: GrantFiled: September 2, 2011Date of Patent: April 25, 2017Assignee: The Scripps Research InstituteInventors: Ralph A. Reisfeld, Rong Xiang, Yunping Luo, Debbie Liao, Ze Liu, Tingmei Chen, Si Chen, Dan Lu
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Patent number: 9616137Abstract: The present invention provides an aqueous tumor-targeting liposome nanoparticle composition comprising an aqueous dispersion of liposome nanoparticles. The nanoparticles preferably encapsulate an anti-cancer chemotherapeutic agent, which can be added to a pre-formed liposome composition or can be incorporated in the liposomes during the formation of the liposomes. The liposome nanoparticles comprise a legumain-targeting lipid admixed with one or more other micelle or vesicle-forming lipid materials in the form of nanoparticulate liposomes dispersed in an aqueous carrier. A preferred tumor-targeting liposome nanoparticle composition comprises (a) a legumain-targeting lipid component, (b) a zwitterionic lipid component; (c) an amino-substituted lipid component; (d) a neutral lipid component; and (e) polyethylene glycol-conjugated lipid component. The legumain-targeting lipid component comprising a hydrophobic lipid portion covalently attached to a legumain-binding moiety.Type: GrantFiled: September 2, 2011Date of Patent: April 11, 2017Assignee: The Scripps Research InstituteInventors: Ralph A. Reisfeld, Rong Xiang, Yunping Luo, Debbie Liao, Ze Liu, Tingmei Chen, Si Chen, Dan Lu
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Publication number: 20150175996Abstract: The present invention provides a DNA composition comprising a DNA minigene construct that encodes for a polypeptide comprising a plurality of immunogenic fragments of a cysteine endopeptidase that is expressed in tumor-associated cells. The immunogenic fragments are joined together serially by a linker peptide between each successive fragment in the polypeptide. The polypeptide is capable of eliciting an immune response against the tumor-associated cells, is expressible in immune cells, and is incorporated in a pharmaceutically acceptable carrier.Type: ApplicationFiled: March 3, 2015Publication date: June 25, 2015Inventors: Ralph A. Reisfeld, Rong Xiang, Yunping Luo, Susanna Lewen
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Publication number: 20140322249Abstract: A DNA vaccine suitable for eliciting an immune response against cancer cells comprises a DNA construct operably encoding a cancer-associated Inhibitor of Apoptosis-family protein and an immunoactive gene product, such as a cytokine or a ligand for a natural killer cell surface receptor, in a pharmaceutically acceptable carrier. A preferred cytokine is CCL21. Preferred ligands for a natural killer cell surface receptor include human MICA, human MICB, human ULBP1, human ULBP2, and human ULBP3. The cancer-associated Inhibitor of Apoptosis (IAP)-family protein is preferably a survivin protein or livin protein. Method of inhibiting tumor growth by administering the vaccine of the invention to a mammal is also described.Type: ApplicationFiled: May 5, 2014Publication date: October 30, 2014Applicant: The Scripps Research InstituteInventors: Rong Xiang, He Zhou, Ralph A Reisfeld
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Patent number: 8716254Abstract: A DNA vaccine suitable for eliciting an immune response against cancer cells comprises a DNA construct operably encoding a cancer-associated Inhibitor of Apoptosis-family protein and an immunoactive gene product, such as a cytokine or a ligand for a natural killer cell surface receptor, in a pharmaceutically acceptable carrier. A preferred cytokine is CCL21. Preferred ligands for a natural killer cell surface receptor include human MICA, human MICB, human ULBP1, human ULBP2, and human ULBP3. The cancer-associated Inhibitor of Apoptosis (IAP)-family protein is preferably a survivin protein or livin protein. Method of inhibiting tumor growth by administering the vaccine of the invention to a mammal is also described.Type: GrantFiled: March 24, 2004Date of Patent: May 6, 2014Assignee: The Scripps Research InstituteInventors: Rong Xiang, He Zhou, Ralph A. Reisfeld
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Publication number: 20130330399Abstract: The present invention provides an aqueous tumor-targeting liposome nanoparticle composition comprising an aqueous dispersion of liposome nanoparticles. The nanoparticles preferably encapsulate an anti-cancer chemotherapeutic agent, which can be added to a pre-formed liposome composition or can be incorporated in the liposomes during the formation of the liposomes. The liposome nanoparticles comprise a legumain-targeting lipid admixed with one or more other micelle or vesicle-forming lipid materials in the form of nanoparticulate liposomes dispersed in an aqueous carrier. A preferred tumor-targeting liposome nanoparticle composition comprises (a) a legumain-targeting lipid component, (b) a zwitterionic lipid component; (c) an amino-substituted lipid component; (d) a neutral lipid component; and (e) polyethylene glycol-conjugated lipid component. The legumain-targeting lipid component comprising a hydrophobic lipid portion covalenetly attached to a legumain-binding moiety.Type: ApplicationFiled: September 2, 2011Publication date: December 12, 2013Inventors: Ralph A. Reisfeld, Rong Xiang, Yunping Luo, Debbie Liao, Ze Liu, Tingmei Chen, Si Chen, Dan Lu
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Patent number: 8241637Abstract: A method of inhibiting endothelial cell proliferation in a mammal is provided. The method comprises the step of administering to the mammal an effective immunological response eliciting amount of a DNA composition comprising a DNA construct operably encoding a VEGF receptor polypeptide and a pharmaceutically acceptable carrier therefor, whereby said mammal exhibits an immune response elicited by vaccine and specific to proliferating endothelial cells. The methods of this invention inhibit vascular endothelial cell proliferation in the tumor micro-environment. Angiogenesis inhibition and subsequent decrease in tumor growth and dissemination is achieved.Type: GrantFiled: October 25, 2011Date of Patent: August 14, 2012Assignee: The Scripps Research InstituteInventors: Ralph A. Reisfeld, Andreas G. Niethammer, Rong Xiang
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Publication number: 20120058177Abstract: The present invention provides an aqueous tumor-targeting liposome nanoparticle composition comprising an aqueous dispersion of liposome nanoparticles. The nanoparticles preferably encapsulate an anti-cancer chemotherapeutic agent, which can be added to a pre-formed liposome composition or can be incorporated in the liposomes during the formation of the liposomes. The liposome nanoparticles comprise a legumain-targeting lipid admixed with one or more other micelle or vesicle-forming lipid materials in the form of nanoparticulate liposomes dispersed in an aqueous carrier. A preferred tumor-targeting liposome nanoparticle composition comprises (a) a legumain-targeting lipid component, (b) a zwitterionic lipid component; (c) an amino-substituted lipid component; (d) a neutral lipid component; and (e) polyethylene glycol-conjugated lipid component. The legumain-targeting lipid component comprising a hydrophobic lipid portion covalenetly attached to a legumain-binding moiety.Type: ApplicationFiled: September 2, 2011Publication date: March 8, 2012Inventors: Ralph A. Reisfeld, Rong Xiang, Yunping Luo, Debbie Liao, Ze Liu, Tingmei Chen, Si Chen, Dan Lu
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Publication number: 20120039931Abstract: A method of inhibiting endothelial cell proliferation in a mammal is provided. The method comprises the step of administering to the mammal an effective immunological response eliciting amount of a DNA composition comprising a DNA construct operably encoding a VEGF receptor polypeptide and a pharmaceutically acceptable carrier therefor, whereby said mammal exhibits an immune response elicited by vaccine and specific to proliferating endothelial cells. The methods of this invention inhibit vascular endothelial cell proliferation in the tumor micro-environment. Angiogenesis inhibition and subsequent decrease in tumor growth and dissemination is achieved.Type: ApplicationFiled: October 25, 2011Publication date: February 16, 2012Applicant: THE SCRIPPS RESEARCH INSTITUTEInventors: Ralph A. REISFELD, Andreas G. NIETHAMMER, RONG XIANG
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Patent number: 8053421Abstract: A DNA vaccine suitable for eliciting an immune response against cancer cells comprises a polynucleotide construct operably encoding an a Fra-1 protein, such as a polyubiquitinated human Fra-1 protein, and IL-18, such as human IL-18, in a pharmaceutically acceptable carrier. In a preferred embodiment, the polynucleotide construct is operably incorporated in an attenuated bacterial vector, such as an attenuated Salmonella typhimurium, particularly a doubly attenuated aroA? dam? S. typhimurium. Transformed host cells, methods of inhibiting tumor growth, of vaccinating a patient against cancer, and of delivering genetic material to a mammalian cell in vivo are also described.Type: GrantFiled: August 4, 2009Date of Patent: November 8, 2011Assignee: The Scripps Research InstituteInventors: Yunping Luo, Rong Xiang, Ralph A. Reisfeld
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Patent number: 8048428Abstract: A DNA composition effective for inhibiting endothelial cell proliferation comprises a DNA construct operably encoding a vascular endothelial growth factor (VEGF) receptor polypeptide, which can be a full length VEGF receptor protein or an immunogenic fragment thereof. This invention provides DNA compositions that encode VEGF receptor-2 (KDR), VEGF receptor-1 (Flt-1), or Flk-1 (the murine homolog of KDR), as well as methods of using such a DNA composition to inhibit vascular endothelial cell proliferation in the tumor micro-environment. Angiogenesis inhibition and subsequent decrease in tumor growth and dissemination is achieved.Type: GrantFiled: August 21, 2006Date of Patent: November 1, 2011Assignee: The Scripps Research InstituteInventors: Ralph A. Reisfeld, Andreas G. Niethammer, Rong Xiang
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Patent number: 7833976Abstract: The invention provides methods for treating tumors and tumor metastases in a mammal comprising administering, to a mammal in need of treatment, a therapeutic amount of an antagonist sufficient to inhibit angiogenesis in combination with a therapeutic amount of anti-tumor immunotherapeutic agent, such as a anti-tumor antigen antibody/cytokine fusion protein having a cytokine and a recombinant immunoglobulin polypeptide chain sufficient to elicit a cytokine-specific biological response.Type: GrantFiled: April 21, 2008Date of Patent: November 16, 2010Assignees: The Scripps Research Institute, EMD Lexigen Research Center Corp.Inventors: Holger N. Lode, Ralph A. Reisfeld, David A. Cheresh, Stephen D. Gillies
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Publication number: 20100136058Abstract: A DNA vaccine suitable for eliciting an immune response against cancer cells comprises a polynucleotide construct operably encoding an a Fra-1 protein, such as a polyubiquitinated human Fra-1 protein, and IL-18, such as human IL-18, in a pharmaceutically acceptable carrier. In a preferred embodiment, the polynucleotide construct is operably incorporated in an attenuated bacterial vector, such as an attenuated Salmonella typhimurium, particularly a doubly attenuated aroA- dam- S. typhimurium. Transformed host cells, methods of inhibiting tumor growth, of vaccinating a patient against cancer, and of delivering genetic material to a mammalian cell in vivo are also described.Type: ApplicationFiled: August 4, 2009Publication date: June 3, 2010Inventors: Yunping Luo, Rong Xiang, Ralph A. Reisfeld
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Publication number: 20100047164Abstract: Chondroition sulfate proteoglycans represent excellent targets for anti-tumor immunotherapy. Antibodies which target such proteoglycans can be used alone, in combinations, armed with a cytotoxic payload or unarmed. Combinations of such antibodies can target different epitopes of the proteoglycans. Internalization of the antibodies can increase the toxicity of the payloads. Single chain variable regions are especially advantageous for such anti-tumor immunotherapy.Type: ApplicationFiled: April 6, 2009Publication date: February 25, 2010Applicants: DUKE UNIVERSITY, The United States Government as represented by the Secretary, Department of Health and Human Service, Scripps Clinic and Research FoundationInventors: Darell Bigner, Chien-Tsun Kuan, Ira H. Pastan, Ralph Reisfeld
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Publication number: 20090275642Abstract: The present invention provides a DNA composition comprising a DNA minigene construct that encodes for a polypeptide comprising a plurality of immunogenic fragments of a cysteine endopeptidase that is expressed in tumor-associated cells. The immunogenic fragments are joined together serially by a linker peptide between each successive fragment in the polypeptide. The polypeptide is capable of eliciting an immune response against the tumor-associated cells, is expressible in immune cells, and is incorporated in a pharmaceutically acceptable carrier.Type: ApplicationFiled: October 5, 2007Publication date: November 5, 2009Inventors: Ralph A. Reisfeld, Rong Xiang, Yunping Luo
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Publication number: 20090253778Abstract: A DNA composition effective for eliciting an immune response against tumor cells and tumor metastases comprising a DNA construct that encodes for at least one epitope of fibroblast activation protein (FAP), which is expressible in immune cells, and which is incorporated in a pharmaceutically acceptable carrier. The composition can encode a single epitope of FAP, a polypeptide comprising two or more epitopes of FAP, the entire FAP protein, or any portion thereof that will elicit the desired immune response. In one preferred embodiment, the composition also includes a DNA construct that encodes an immune effector protein, such as a cytokine. The DNA composition of the invention can be used alone or in combination with a chemotherapeutic agent to treat diseases such as tumors and tumor metastases.Type: ApplicationFiled: June 21, 2007Publication date: October 8, 2009Inventors: Ralph A. Reisfeld, Markus Loeffler, Jorg A. Kruger, Andreas G. Niethammer
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Patent number: 7569552Abstract: A DNA vaccine suitable for eliciting an immune response against cancer cells comprises a polynucleotide construct operably encoding an a Fra-1 protein, such as a polyubiquitinated human Fra-1 protein, and IL-18, such as human IL-18, in a pharmaceutically acceptable carrier. In a preferred embodiment, the polynucleotide construct is operably incorporated in an attenuated bacterial vector, such as an attenuated Salmonella typhimurium, particularly a doubly attenuated aroA? dam? S. typhimurium. Transformed host cells, methods of inhibiting tumor growth, of vaccinating a patient against cancer, and of delivering genetic material to a mammalian cell in vivo are also described.Type: GrantFiled: October 7, 2004Date of Patent: August 4, 2009Assignee: The Scripps Research InstituteInventors: Yunping Luo, Rong Xiang, Ralph A. Reisfeld