Patents Assigned to Rijksuniversiteit te Leiden
  • Patent number: 7507800
    Abstract: The present invention relates generally to the field of human genetics, and more specifically to the detection of a specific type of germline mutations in the BRCA1 gene, which will predispose to breast and ovarian cancer. In addition, the invention relates to the molecular genetic mechanism that may have mediated the genesis of these mutations, in particular the role of Alu repetitive DNA elements present in the intronic regions of BRCA1. The invention further relates to somatic mutations of this type in the BRCA1 gene in human breast and ovarian cancer, and their use in the diagnosis and prognosis of human breast and ovarian cancer. The invention more particularly relates to the screening of this type of BRCA1 mutations in human genomic DNA, which are useful for the diagnosis of inherited predisposition to breast and ovarian cancer.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: March 24, 2009
    Assignee: Rijksuniversiteit te Leiden
    Inventors: Garrit-Jan Boudewijn van Ommen, Anne Petrij-Bos, Egbert Bakker, Peter Devilee
  • Patent number: 7205119
    Abstract: A peptide sequence of the so-called minor H antigen. The minor H antigens are associated with Graft versus Host disease. The peptide and its derivatives find many uses in bone marrow transplantation, organ transplantation, and in the treatment of leukemia. The peptide and its derivatives can be incorporated into vaccines and pharmaceutical formulations, and they can be used in diagnostic test kits. The peptide is derived from the HA-1 minor antigen, and has the sequence VLXDDLLEA (SEQ ID NO: 1), wherein X represents a histidine or arginine residue. Both donors and recipients in bone marrow transplantation can be treated with the peptides, optionally in combination with other peptides, coupled to carriers, and with suitable excipients and/or adjuvants.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: April 17, 2007
    Assignee: Rijksuniversiteit te Leiden
    Inventors: Els A. J. M. Goulmy, Donald F. Hunt, Victor H. Engelhard
  • Patent number: 7022526
    Abstract: The invention relates to the field of microorganisms and to the culturing of microorganisms. Means and methods are described for enhancing the culturing properties of filamentous microorganisms, particularly filamentous fungi. According to the invention, the means and methods generally comprise reducing the branching and/or enhancing the fragmentation of the microorganisms, so that their liquid culturing properties are improved. In one embodiment, this is achieved by providing the microorganisms with activity capable of enhancing fragmentation and/or reducing branching such as the activity which in, for example, Streptomyces griseus is encoded by ssgA.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: April 4, 2006
    Assignee: Rijksuniversiteit te Leiden
    Inventors: Gilles Philippus van Wezel, Barend Kraal, Rudolf Gijsbertus M. Luiten
  • Patent number: 7008922
    Abstract: The present invention relates to a peptide which is immunologically recognizable as a T cell epitope of the minor Histocompatibility antigen H-Y. The peptide comprises amino acid sequence SPSVDKARAEL (SEQ ID NO: 1) or FIDSYICQV (SEQ ID NO: 2). The peptide is obtainable from the minor Histocompatibility antigen H-Y. Providing a toxic moiety to the peptide eliminates T cells having specific binding affinity for the peptide. The peptide induces tolerance for transplantations when administered to H-Y-negative recipients.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: March 7, 2006
    Assignee: Rijksuniversiteit te Leiden
    Inventors: Els A. J. M. Goulmy, Donald F. Hunt, Victor H. Engelhard
  • Patent number: 6878375
    Abstract: A peptide sequence of the so-called minor H antigen. The minor H antigens are associated with Graft versus Host disease. The peptide and its derivatives find many uses in bone marrow transplantation, organ transplantation, and in the treatment of leukemia. The peptide and its derivatives can be incorporated into vaccines and pharmaceutical formulations, and they can be used in diagnostic test kits. The peptide is derived from the HA-1 minor antigen, and has the sequence VLXDDLLEA (SEQ. I.D. NO. 1), wherein X represents a histidine or arginine residue. Both donors and recipients in bone marrow transplantation can be treated with the peptides, optionally in combination with other peptides, coupled to carriers, and with suitable excipients and/or adjuvants.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: April 12, 2005
    Assignee: Rijksuniversiteit te Leiden
    Inventors: Els A. J. M. Goulmy, Donald F. Hunt, Victor H. Engelhard
  • Patent number: 6733966
    Abstract: The present invention relates generally to the field of human genetics, and more specifically to the detection of a specific type of germline mutations in the BRCA1 gene, which will predispose to breast and ovarian cancer. In addition, the invention relates to the molecular genetic mechanism that may have mediated the genesis of these mutations, in particular the role of Alu repetitive DNA elements present in the intronic regions of BRCA1. The invention further relates to somatic mutations of this type in the BRCA1 gene in human breast and ovarian cancer, and their use in the diagnosis and prognosis of human breast and ovarian cancer. The invention more particularly relates to the screening of this type of BRCA1 mutations in human genomic DNA, which are useful for the diagnosis of inherited predisposition to breast and ovarian cancer.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: May 11, 2004
    Assignee: Rijksuniversiteit Te Leiden
    Inventors: Garrit-Jan Boudewijn van Ommen, Anne Petrij-Bos, Egbert Bakker, Peter Devilee
  • Publication number: 20030181370
    Abstract: H-Y is a transplantation antigen that can lead to rejection of HLA-matched male organ and bone marrow grafts by female recipients, and may play a role in pregnancy and spermatogenesis. However, the origin and function of H-Y antigens has eluded researchers for 40 years. We show that one human H-Y peptide antigen presented by HLA-B7 is an 11 residue peptide derived from SMCY, an evolutionarily conserved Y chromosomal protein. A homologous gene on the X chromosome, SMCX, differs by two residues in the same region. We also show a peptide antigen recognized by two HLA-A2.1 restricted T cell clones, which is also encoded by SMCY. The identification of H-Y offers prospects for improvements in transplantation outcome, prenatal diagnosis and fertilization strategies.
    Type: Application
    Filed: December 24, 2002
    Publication date: September 25, 2003
    Applicant: RIJKSUNIVERSITEIT te LEIDEN
    Inventors: Els A.J.M. Goulmy, Donald F. Hunt, Victor H. Engelhard
  • Patent number: 6521598
    Abstract: The present invention relates to a peptide which is immunologically recognizable as a T cell epitope of the minor histocompatibility antigen H-Y. The peptide comprises amino acid sequence SPSVDKARAEL (SEQ ID NO:1), or FIDSYICQV (SEQ ID NO:2). The peptide is obtainable from the minor histocompatibility antigen H-Y. Providing a toxic moiety to the peptide eliminates T Cells having specific binding affinity for the peptide. The peptide induces tolerance for transplantations when administered to H-Y-negative recipients.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: February 18, 2003
    Assignee: Rijksuniversiteit te Leiden
    Inventors: Els A. J. M. Goulmy, Donald F. Hunt, Victor H. Engelhard
  • Patent number: 6379885
    Abstract: The invention relates to the coat proteins VP1 and VP2 of the human parvovirus B19 and virus-like particles consisting of VP2 or of VP1 and VP2. The invention further comprises genetic information in the form of recombinant expression vectors which contain the genes coding for said proteins, and organisms which through genetic manipulation using such vectors have acquired the ability to produce such proteins and/or particles. The invention further comprises uses of such proteins and virus-like particles for diagnostics or vaccination.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 30, 2002
    Assignee: Rijksuniversiteit te Leiden
    Inventor: Caroline Sarah Brown
  • Patent number: 6287815
    Abstract: The invention relates to the coat proteins VP1 and VP2 of the human parvovirus B19 and virus-like particles consisting of VP2 or of VP1 and VP2. The invention further comprises genetic information in the form of recombinant expression vectors which contain the genes coding for said proteins, and organisms which through genetic manipulation using such vectors have acquired the ability to produce such proteins and/or particles. The invention further comprises uses of such proteins and virus-like particles for diagnostics or vaccination.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 11, 2001
    Assignee: Rijksuniversiteit te Leiden
    Inventor: Caroline Sarah Brown
  • Patent number: 6087560
    Abstract: Plants are provided with improved resistance against pathogenic fungi. They are genetically transformed with one or more polynucleotides which essentially comprise one or more genes encoding plant chitinases and .beta.-1,3-glucanases. Preferred are the intracellular forms of the said hydrolytic enzymes, especially preferred are those forms which are targeted to the apoplastic space of the plant by virtue of the modification of the genes encoding the said enzymes. Particularly preferred are plants exhibiting a relative overexpression of at least one gene encoding a chitinase and one gene encoding a .beta.-1,3-glucanase.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: July 11, 2000
    Assignees: Rijksuniversiteit te Leiden, Mogen International, N.V.
    Inventors: Bernardus J. C. Cornelissen, Leo Sjoerd Melchers, Elisabeth J. S. Meulenhoff, Jeroen S. C. van Roekel, Marianne Beatrix Sela-Buurlage, Alexandra Aleida Vloemans, Charles Peter Woloshuk, John Ferdinand Bol, Hubertus J. M. Linthorst
  • Patent number: 6080590
    Abstract: The present invention relates to an on-line detection method comprising the on-line coupling of a fractionation and a biochemical detection technique, which method comprises the addition of a controlled amount of an affinity molecule to the effluent of the fractionation step to react with analytes in the effluent, the subsequent addition of a controlled amount of a detectable ligand capable of binding to the affinity molecule, and detection of the affinity molecule/detectable ligand complex.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: June 27, 2000
    Assignee: Rijksuniversiteit te Leiden
    Inventors: Jan Van Der Greef, Hubertus Irth, Aaike Johannes Oosterkamp, Eva Saskia Mareike Lutz
  • Patent number: 5993808
    Abstract: There is provided a method for inhibiting growth and/or germination of a fungus, by contacting the fungus, or causing the fungus to be contacted with a composition including an effective amount of a pathogenesis-related protein occurring naturally in a plant. The protein has endochitinase activity, antifungal activity and a molecular weight of about 40 to 43 kDa as judged by Sodium Dodecyl Sulphate Polyacrylamide electrophoresis. There is also provided a composition for inhibiting growth and/or germination of a fungus. The composition includes a pathogenesis-related protein occurring naturally in a plant. The protein has endochitinase activity, antifungal activity and a molecular weight of about 40 to 43 kDa as judged by Sodium Dodecyl Sulphate Polyacrylamide electrophoresis. The composition also includes .beta.-1,3-glucanase in an amount sufficient to enhance the effectiveness of the composition in inhibiting the growth or germination of the fungus.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: November 30, 1999
    Assignees: Mogen International NV, Rijksuniversiteit Te Leiden
    Inventors: Leo Sjoerd Melchers, Marion Apotheker-De Groot, John Ferdinand Bol, Bernardus Johannes Clemens Cornelissen, Hubertus Josephus Maria Linthorst, Anne Silene Ponstein, Marianne Beatrix Sela-Buurlage
  • Patent number: 5885968
    Abstract: Triantennary cluster glycoside, wherein each glycoside residue is attached to the branching point of the cluster by a spacer of a long, flexible, hydrophilic chain comprising at least 4 atoms in the chain. The glyciside spacer preferably comprises at least two hydrophilic groups. Use of the triantennary cluster glycoside in pharmaceutical preparations, for instance hypolipidemic medicines.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: March 23, 1999
    Assignees: Rijksuniversiteit te Leiden, Nederlandse Hartstichting
    Inventors: Ericus Anna Leonardus Biessen, Theodorus Josephus Cornelis van Berkel, Jacobus Hubertus van Boom
  • Patent number: 5670706
    Abstract: Plants are provided with improved resistance against pathogenic fungi. They are genetically transformed with one or more polynucleotides which essentially comprise one or more genes encoding plant chitinases and .beta.-1,3-glucanases. Preferred are the intracellular forms of the said hydrolytic enzymes, especially preferred are those forms which are targeted to the apoplastic space of the plant by virtue of the modification of the genes encoding the said enzymes. Particularly preferred are plants exhibiting a relative overexpression of at least one gene encoding a chitinase and one gene encoding a .beta.-1,3-glucanase.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: September 23, 1997
    Assignees: MOGEN International, n.v., Rijksuniversiteit te Leiden
    Inventors: Bernardus J. C. Cornelissen, Leo Sjoerd Melchers, Elisabeth J. S. Meulenhoff, Jeroen S. C. van Roekel, Marianne Beatrix Sela-Buurlage, Alexandra Aleida Vloemans, Charles Peter Woloshuk, John Ferdinand Bol, Hubertus J. M. Linthorst
  • Patent number: 5501967
    Abstract: The present invention provides a method for site-directed integration of DNA-sequences into the genome of plants via homologous recombination, by transforming said plants using the DNA-transfer system of Agrobacterium, in which the transforming DNA comprises in its most simple form a region homologous to the target locus, as well as a region which is different from the target locus either next to one or between two T-DNA borders.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: March 26, 1996
    Assignee: Mogen International, n.v./Rijksuniversiteit te Leiden
    Inventors: Remko Offringa, Marcellus J. A. De Groot, Paul J. J. Hooykaas, Petrus J. M. Van Den Elzen