Patents by Inventor Gregorio del Val

Gregorio del Val 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).

  • Publication number: 20240100187
    Abstract: A vector comprises a polynucleotide encoding an antibody or antibody fragment for use in a method of treatment of a disease or disorder of the central nervous system (CNS) in a subject, wherein the vector transduces or transfects cells of the blood brain barrier (BBB) and the transduced or transfected BBB cells express the antibody or antibody fragment resulting in delivery of the antibody or antibody fragment into the CNS, preferably into the brain parenchyma.
    Type: Application
    Filed: December 17, 2021
    Publication date: March 28, 2024
    Inventors: Gregorio Del Val, Damien Névoltris
  • Publication number: 20090203586
    Abstract: The present invention relates to the use of thioredoxin in the manufacture of a medicament suitable for application to a skin surface for ameliorating an inflammatory skin condition. The present invention further relates to a method of ameliorating an inflammatory skin condition comprising applying to a skin surface an effective amount of a composition comprising thioredoxin. The invention further relates to a pharmaceutical composition suitable for ameliorating an inflammatory skin condition comprising from 0.0001 to 0.5 w/v thioredoxin.
    Type: Application
    Filed: June 10, 2005
    Publication date: August 13, 2009
    Applicant: SYNGENTA LIMITED
    Inventors: Rebecca Jane Dearman, Marie Cumberbatch, Ian Kimber, Gregorio Del Val
  • Patent number: 7074900
    Abstract: Thioredoxin, a small dithiol protein, is a specific reductant for allergenic proteins and particularly allergenic proteins present in pollen and animal and plant sources. All targeted proteins contain disulfide (S—S) bonds that are reduced to the sulfhydryl (SH) level by thioredoxin. The proteins are allergenically active and less digestible in the oxidized (S—S) state. When reduced (SH state), they lose their allergenicity and/or become more digestible. Thioredoxin achieved this reduction when activated (reduced) either by NADPH via NADP-thioredoxin reductase (physiological conditions) or by lipoic acid chemical reductant. Skin tests carried out with sensitized dogs showed that treatment of the pollens with reduced thioredoxin prior to injection eliminated or decreased the allergenicity of the pollen. Studies showed increased digestion of the pollen proteins by pepsin following reduction by thioredoxin.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: July 11, 2006
    Assignee: The Regents of the University of California
    Inventors: Bob B. Buchanan, Gregorio del Val, Rosa M. Lozano, Joshua H. Wong, Boihan C. Yee, Oscar L. Frick
  • Publication number: 20060099215
    Abstract: A 30 kDa ragweed complete pollen extract disulfide protein allergen has been purified from ragweed pollen. IgE immunoblots with sera of ragweed, walnut and ryegrass sensitive patients indicated that the 30 kDa protein is a major allergen. The 30 kDa protein finds use in allergy testing and immunotherapy regimens.
    Type: Application
    Filed: September 26, 2005
    Publication date: May 11, 2006
    Applicant: The Regents of University of California
    Inventors: Bob Buchanan, Gregorio del Val, Oscar Frick, Suzanne Teuber
  • Patent number: 6838113
    Abstract: Thioredoxin, a small dithiol protein, is a specific reductant for major food proteins, allergenic proteins and particularly allergenic proteins present in widely used foods from animal and plant sources. All targeted proteins contain disulfide (S—S) bonds that are reduced to the sulfhydryl (SH) level by thioredoxin. The proteins are allergenically active and less digestible in the oxidized (S—S) state. When reduced (SH state), they lose their allergenicity and/or become more digestible. Thioredoxin achieved this reduction when activated (reduced) either by NADPH via NADP-thioredoxin reductase (physiological conditions) or by dithiothreitol, a chemical reductant. Skin tests and feeding experiments carried out with sensitized dogs showed that treatment of the food with reduced thioredoxin prior to ingestion eliminated or decreased the allergenicity of the food. Studies showed increased digestion of food and food proteins by pepsin and trypsin following reduction by thioredoxin.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: January 4, 2005
    Assignee: The Regents of the University of California
    Inventors: Bob B. Buchanan, Gregorio del Val, Rosa M. Lozano, Jin-an Jiao, Joshua H. Wong, Boihon C. Yee
  • Patent number: 6833493
    Abstract: The present invention provides barley thioredoxin h nucleic acids and NADP-thioredoxin reductase nucleic acids, the respective encoded proteins and methods of use.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: December 21, 2004
    Assignee: The Regents of the University of California
    Inventors: Myeong-Je Cho, Gregorio del Val, Maxime Caillau, Peggy G. Lemaux, Bob B. Buchanan
  • Publication number: 20040091578
    Abstract: Disulfide proteins showed mitigated allergenicity and increased digestibility by pepsin following reduction by thioredoxin. The sulfhydryl groups newly formed on reduction by thioredoxin (at 4° C.) or dithiothreitol (DTT) (at 55° C.) were blocked with a physiological disulfide, such as cystamine or oxidized glutathione (GSSG) to obtain stable forms of the disarmed allergen. When derivatized with cystamine, BLG was separated from its oxidized and reduced forms on non-reducing SDS-PAGE and appeared to lack sulfhydryl groups. Although less effective GSSG, gave similar results. Allergenicity of the two derivatives was compared with that of the oxidized, reduced and reoxidized forms of BLG by skin testing dogs from a colony sensitized to cow's milk. Both the cystamine and GSSG derivatized BLG showed decreased allergenicity and increased sensitivity to pepsin as compared to controls. The reoxidized form resembled the derivatives in having lower allergenicity.
    Type: Application
    Filed: October 30, 2003
    Publication date: May 13, 2004
    Applicant: The Regents of University of California
    Inventors: Bob B. Buchanan, Susumu Morigasaki, Gregorio del Val, Oscar L. Frick
  • Publication number: 20040071738
    Abstract: Thioredoxin, a small dithiol protein, is a specific reductant for allergenic proteins and particularly allergenic proteins present in pollen and animal and plant sources. All targeted proteins contain disulfide (S—S) bonds that are reduced to the sulfhydryl (SH) level by thioredoxin. The proteins are allergenically active and less digestible in the oxidized (S—S) state. When reduced (SH state), they lose their allergenicity and/or become more digestible. Thioredoxin achieved this reduction when activated (reduced) either by NADPH via NADP-thioredoxin reductase (physiological conditions) or by lipoic acid chemical reductant. Skin tests carried out with sensitized dogs showed that treatment of the pollens with reduced thioredoxin prior to injection eliminated or decreased the allergenicity of the pollen. Studies showed increased digestion of the pollen proteins by pepsin following reduction by thioredoxin.
    Type: Application
    Filed: April 23, 2003
    Publication date: April 15, 2004
    Inventors: Bob B. Buchanan, Gregorio del Val, Rosa M. Lozano, Joshua H. Wong, Boihon C. Yee, Oscar L. Frick
  • Patent number: 6677433
    Abstract: Disulfide proteins showed mitigated allergenicity and increased digestibility by pepsin following reduction by thioredoxin. The sulfhydryl groups newly formed on reduction by thioredoxin (at 4° C.) or dithiothreitol (DTT) (at 55° C.) were blocked with a physiological disulfide, such as cystamine or oxidized glutathione (GSSG) to obtain stable forms of the disarmed allergen. When derivatized with cystamine, BLG was separated from its oxidized and reduced forms on non-reducing SDS-PAGE and appeared to lack sulfhydryl groups. Although less effective GSSG, gave similar results. Allergenicity of the two derivatives was compared with that of the oxidized, reduced and reoxidized forms of BLG by skin testing dogs from a colony sensitized to cow's milk. Both the cystamine and GSSG derivatized BLG showed decreased allergenicity and increased sensitivity to pepsin as compared to controls. The reoxidized form resembled the derivatives in having lower allergenicity.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: January 13, 2004
    Assignee: The Regents of the University of California
    Inventors: Bob B. Buchanan, Susumu Morigasaki, Gregorio del Val, Oscar L. Frick
  • Publication number: 20030180225
    Abstract: A 30 kDa ragweed complete pollen extract disulfide protein allergen has been purified from ragweed pollen. IgE immunoblots with sera of ragweed, walnut and ryegrass sensitive patients indicated that the 30 kDa protein is a major allergen. The 30 kDa protein finds use in allergy testing and immunotherapy regimens.
    Type: Application
    Filed: February 4, 2002
    Publication date: September 25, 2003
    Inventors: Bob B. Buchanan, Gregorio del Val, Oscar L. Frick, Suzanne S. Teuber
  • Publication number: 20030170763
    Abstract: A 30 kDa ragweed complete pollen extract disulfide protein allergen has been purified from ragweed pollen. IgE immunoblots with sera of ragweed, walnut and ryegrass sensitive patients indicated that the 30 kDa protein is a major allergen. The 30 kDa protein finds use in allergy testing and immunotherapy regimens.
    Type: Application
    Filed: February 4, 2002
    Publication date: September 11, 2003
    Inventors: Bob B. Buchanan, Gregorio del Val, Oscar L. Frick
  • Publication number: 20030150010
    Abstract: The present invention provides barley thioredoxin h nucleic acids and NADP-thioredoxin reductase nucleic acids, the respective encoded proteins and methods of use.
    Type: Application
    Filed: March 5, 2002
    Publication date: August 7, 2003
    Inventors: Myeong-Je Cho, Gregorio del Val, Maxime Caillau, Peggy G. Lemaux, Bob B. Buchanan
  • Patent number: 6555116
    Abstract: Thioredoxin, a small dithiol protein, is a specific reductant for allergenic proteins and particularly allergenic proteins present in pollen and animal and plant sources. All targeted proteins contain disulfide (S—S) bonds that are reduced to the sulfhydryl (SH) level by thioredoxin. The proteins are allergenically active and less digestible in the oxidized (S—S) state. When reduced (SH state), they lose their allergenicity and/or become more digestible. Thioredoxin achieved this reduction when activated (reduced) either by NADPH via NADP-thioredoxin reductase (physiological conditions) or by lipoic acid chemical reductant. Skin tests carried out with sensitized dogs showed that treatment of the pollens with reduced thioredoxin prior to injection eliminated or decreased the allergenicity of the pollen. Studies showed increased digestion of the pollen proteins by pepsin following reduction by thioredoxin.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: April 29, 2003
    Assignee: Regents of the University of California
    Inventors: Bob B. Buchanan, Gregorio del Val, Rosa M. Lozano, Joshua H. Wong, Boihon C. Yee, Oscar L. Frick
  • Publication number: 20020150537
    Abstract: A method for testing the allergenicity of a heterologous protein produced by a plant or animal that has been genetically modified to produce that protein is disclosed.
    Type: Application
    Filed: February 2, 2001
    Publication date: October 17, 2002
    Inventors: Gregorio del Val, Boihon C. Yee, Hye Rim Jung, Bob Buchanan, Oscar L. Frick
  • Publication number: 20020098277
    Abstract: Disulfide proteins showed mitigated allergenicity and increased digestibility by pepsin following reduction by thioredoxin. The sulfhydryl groups newly formed on reduction by thioredoxin (at 4° C.) or dithiothreitol (DTT) (at 55° C.) were blocked with a physiological disulfide, such as cystamine or oxidized glutathione (GSSG) to obtain stable forms of the disarmed allergen. When derivatized with cystamine, BLG was separated from its oxidized and reduced forms on non-reducing SDS-PAGE and appeared to lack sulfhydryl groups. Although less effective GSSG, gave similar results. Allergenicity of the two derivatives was compared with that of the oxidized, reduced and reoxidized forms of BLG by skin testing dogs from a colony sensitized to cow's milk. Both the cystamine and GSSG derivatized BLG showed decreased allergenicity and increased sensitivity to pepsin as compared to controls. The reoxidized form resembled the derivatives in having lower allergenicity.
    Type: Application
    Filed: February 7, 2001
    Publication date: July 25, 2002
    Inventors: Bob B. Buchanan, Susumu Morigasaki, Gregorio del Val, Oscar L. Frick
  • Patent number: 6380372
    Abstract: The present invention provides barley thioredoxin h nucleic acids and proteins. The barley thioredoxin h nucleic acid may be isolated or it may be an expression vector. The expression vector may be operably linked to a transcriptional regulatory sequence. The invention also provides for transgenic plants comprising recombinant barley thioredoxin h. The invention also provides methods of expressing and purifying barley thioredoxin h.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: April 30, 2002
    Assignee: The Regents of the University of California
    Inventors: Myeong-Je Cho, Gregorio del Val, Maxime Caillau, Peggy G. Lemaux, Bob B. Buchanan
  • Patent number: 5952034
    Abstract: Thioredoxin, a small dithiol protein, is a specific reductant for major food proteins, allergenic proteins and particularly allergenic proteins present in widely used foods from animal and plant sources. All targeted proteins contain disulfide (S--S) bonds that are reduced to the sulfhydryl (SH) level by thioredoxin. The proteins are allergenically active and less digestible in the oxidized (S--S) state. When reduced (SH state), they lose their allergenicity and/or become more digestible. Thioredoxin achieved this reduction when activated (reduced) either by NADPH via NADP-thioredoxin reductase (physiological conditions) or by dithiothreitol, a chemical reductant. Skin tests and feeding experiments carried out with sensitized dogs showed that treatment of the food with reduced thioredoxin prior to ingestion eliminated or decreased the allergenicity of the food. Studies showed increased digestion of food and food proteins by pepsin and trypsin following reduction by thioredoxin.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: September 14, 1999
    Assignee: The Regents of the University of California
    Inventors: Bob B. Buchanan, Gregorio del Val, Rosa M. Lozano, Jin-an Jiao, Joshua H. Wong, Boihon C. Yee