Patents Assigned to Koninklijke Nederlandse Akademie van Wetenschappen
  • Publication number: 20170342385
    Abstract: The invention relates to improved culture methods for expanding epithelial stem cells and obtaining organoids, to culture media involved in said methods, and to uses of said organoids.
    Type: Application
    Filed: November 27, 2015
    Publication date: November 30, 2017
    Applicant: Koninklijke Nederlandse Akademie Van Wetenschappen
    Inventors: Lars Norman Sachs, Ana Gracanin, Jarno Drost
  • Patent number: 9822336
    Abstract: A method for making an at least double layered cell aggregate and/or an artificial blastocyst, and/or a further-developed blastoid termed blastoid, by forming a double layered cell aggregate from at least one trophoblast cell and at least one pluripotent and/or totipotent cell, and culturing the aggregate to obtain an artificial blastocyst having a trophectoderm-like tissue that surrounds a blastocoel and an inner cell mass-like tissue. The cell aggregate can be formed from toti- or pluripotent stem cell types, or induced pluripotent stem cell types, in combination with trophoblast stem cells. Formation of a blastoid can be achieved by culturing the cell aggregate in a medium preferably comprising one or more of a Rho/ROCK inhibitor, a Wnt pathway modulator, a PKA pathway modulator, a PKC pathway modulator, a MAPK pathway modulator, a STAT pathway modulator, an Akt pathway modulator, a Tgf pathway modulator and a Hippo pathway modulator.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: November 21, 2017
    Assignees: UNIVERSITEIT MAASTRICHT, KONINKLIJKE NEDERLANDSE AKADEMIE VAN WETENSCHAPPEN
    Inventors: Nicolas Clément Rivron, Clemens Antoni Van Blitterswijk, Niels Geijsen, Erik Jacob Vrij
  • Publication number: 20170304348
    Abstract: The invention relates to the diagnostic and therapeutic uses of a miRNA molecule, an equivalent or a source thereof in a disease and condition associated with melanoma or a disease or a condition associated with activated BRAF pathway.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 26, 2017
    Applicants: INTERNA TECHNOLOGIES B.V., KONINKLIJKE NEDERLANDSE AKADEMIE VAN WETENSCHAPPEN
    Inventors: Eugene Berezikov, Jos Bernard Poell, Willemijn Maria Gommans, Rick Jan van Haastert, Andreas Alphons F.L. van Puijenbroek, Roeland Quirinus Jozef Schaapveld, Gregoire Pierre Andre Prevost
  • Publication number: 20170275592
    Abstract: The invention relates to improved culture methods for expanding epithelial stem cells and obtaining organoids, to culture media involved in said methods, and to uses of said organoids.
    Type: Application
    Filed: November 27, 2015
    Publication date: September 28, 2017
    Applicant: Koninklijke Nederlandse Akademie Van Wetenschappen
    Inventors: Lars Norman SACHS, Jarno DROST
  • Patent number: 9765301
    Abstract: The invention relates to a liver organoid, uses thereof and method for obtaining them.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: September 19, 2017
    Assignee: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Meritxell Huch Ortega, Johannes Carolus Clevers
  • Patent number: 9752124
    Abstract: The invention relates to a method for culturing epithelial stem cells, isolated tissue fragments comprising the epithelial stem cells, or adenoma cells, and culturing the cells or fragments in the presence of a Bone Morphogenetic Protein (BMP) inhibitor, a mitogenic growth factor, and a Wnt agonist when culturing epithelial stem cells and isolated tissue fragments. The invention further relates to a cell culture medium comprising a BMP inhibitor, a mitogenic growth factor, and a Wnt agonist, to the use of the culture medium, and to crypt-villus organoids, gastric organoids, pancreatic organoids, liver organoids, colon organoids, Barrett's Esophagus organoids, adenocarcinoma organoids and colon carcinoma organoids that are formed in the culture medium.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: September 5, 2017
    Assignee: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Toshiro Sato, Johannes C. Clevers, Meritxell Huch Ortega
  • Publication number: 20170210722
    Abstract: The present invention relates to novel compounds, comprising an 8-or 9-membered cyclic structure, wherein an (E)-1,4-dioxo-but-2-ene moiety is embedded in said cyclic structure and to pharmaceutical compositions comprising these compounds. The compounds may be used as medicaments, in particular as medicaments for treating and preventing microbial infections, such as infections by multidrug resistant and/or Gram-positive bacteria. The invention further relates to fermentation processes wherein fungi of the genus Ulocladium are used for producing the novel compounds.
    Type: Application
    Filed: July 30, 2015
    Publication date: July 27, 2017
    Applicant: Koninklijke Nederlandse Akademie Van Wetenschappen
    Inventors: Jeroen DEN HERTOG, Gisela Johanna VAN DER VELDEN, Jelmer HOEKSMA
  • Publication number: 20170191030
    Abstract: The invention relates to improved culture methods for expanding epithelial stem cells and obtaining organoids, to culture media involved in said methods, and to uses of said organoids.
    Type: Application
    Filed: May 15, 2015
    Publication date: July 6, 2017
    Applicant: KONINKLIJKE NEDERLANDSE AKADEMIE VAN WETENSCHAPPEN
    Inventors: Meritxell HUCH ORTEGA, Johannes Carolus CLEVERS, Sylvia FERNANDEZ BOJ
  • Publication number: 20170151308
    Abstract: The invention relates to the fields of biochemistry, pharmacy and oncology. The invention particularly relates to the use of novel stem cell markers for the isolation of stem cells. The invention further relates to the obtained stem cells and their use in for example research or treatment, for example, for the preparation of a medicament for the treatment of damaged or diseased tissue. In one of the embodiments, the invention provides a method for obtaining (or isolating) stem cells comprising optionally preparing a cell suspension from a tissue or organ sample, contacting said cell suspension with an Lgr 6 or 5 binding compound, identify the cells bound to said binding compound, and optionally isolating the stem cells from said binding compound. The invention further relates to means suitable for cancer treatment and even more specific for the treatment of cancer by eradicating cancer stem cells.
    Type: Application
    Filed: September 23, 2014
    Publication date: June 1, 2017
    Applicant: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Johannes C. Clevers, Nicholas Barker, Andrea Haegebarth, Marcus Lambertus Van de Wetering
  • Publication number: 20160273001
    Abstract: The invention relates to transduction compounds, buffers and methods for introducing molecules into cells. The invention also relates to methods of treatment, pharmaceutical compositions and other uses of the transduction compounds and buffers. The invention also relates to modified cells obtainable by the transduction compounds, buffers and methods of the invention.
    Type: Application
    Filed: August 28, 2014
    Publication date: September 22, 2016
    Applicant: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Niels Geijsen, Diego Sebastián D'Astolfo
  • Publication number: 20150276719
    Abstract: The invention relates to an assay for diagnosing a disease or affliction that affects fluid uptake or secretion or for studying the effectiveness of one or more drugs for treating the disease or affliction, wherein the assay comprises measuring swelling of one or more organoids.
    Type: Application
    Filed: December 19, 2012
    Publication date: October 1, 2015
    Applicants: UMC Utrecht Holding B.V., Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Jeffrey Matthijn Beekman, Johanna Florentia Dekkers, Cornelis Korstiaan Van Der Ent, Johannes C. Clevers
  • Publication number: 20150231201
    Abstract: The invention relates to the fields of biochemistry, pharmacy and oncology. The invention particularly relates to the use of novel stem cell markers for the isolation of stem cells. The invention further relates to the obtained stem cells and their use in for example research or treatment, for example, for the preparation of a medicament for the treatment of damaged or diseased tissue. In one of the embodiments, the invention provides a method for obtaining (or isolating) stem cells comprising optionally preparing a cell suspension from a tissue or organ sample, contacting said cell suspension with an Lgr 6 or 5 binding compound, identify the cells bound to said binding compound, and optionally isolating the stem cells from said binding compound. The invention further relates to means suitable for cancer treatment and even more specific for the treatment of cancer by eradicating cancer stem cells.
    Type: Application
    Filed: September 23, 2014
    Publication date: August 20, 2015
    Applicant: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Johannes C. Clevers, Nicholas Barker, Andrea Haegebarth, Marcus Lambertus Van de Wetering
  • Publication number: 20150011420
    Abstract: The invention relates to an assay for diagnosing a disease or affliction that affects fluid uptake or secretion or for studying the effectiveness of one or more drugs for treating the disease or affliction, wherein the assay comprises measuring swelling of one or more organoids.
    Type: Application
    Filed: December 19, 2012
    Publication date: January 8, 2015
    Applicants: UMC Utrecht Holding B.V., Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Jeffrey Matthijn Beekman, Johanna Florentia Dekkers, Cornelis Korstiaan Van Der Ent, Johannes C. Clevers
  • Patent number: 8906631
    Abstract: Described are the use of stem cell markers for the isolation of stem cells and the use of the obtained stem cells in, for example, research or treatment, such as for the preparation of a medicament for the treatment of damaged or diseased tissue. In one aspect, provided is a method for obtaining or isolating stem cells that comprises preparing a cell suspension from a tissue or organ sample, contacting the cell suspension with an Lgr 6 or 5 binding compound, identifying the cells bound to the binding compound, and isolating the stem cells from the binding compound. Further described are methods and compositions for cancer treatment, for example, by eradicating cancer stem cells.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: December 9, 2014
    Assignee: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Johannes Carolus Clevers, Nicholas Barker, Andrea Haegebarth, Marcus Lambertus Van de Wetering
  • Patent number: 8895720
    Abstract: The invention provides a method for characterising a sample comprising nucleic acid derived from a cell. The method comprises determining whether a sample comprises at least a minimal sequence of at least one new microRNA (miRNA) according to the invention or a mammalian ortholog thereof and characterizing the sample on the basis of the presence or absence of the miRNA. The invention further provides nucleic acid molecules and collections thereof and their use in therapeutic and diagnostic applications. The invention furthermore provides a method for identifying a miRNA molecule or a precursor molecule thereof.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: November 25, 2014
    Assignee: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Ronald H. A. Plasterk, Eugene Berezikov, Edwin Pieter Cuppen
  • Publication number: 20140256037
    Abstract: The invention relates to a method for culturing epithelial stem cells, isolated tissue fragments comprising said epithelial stem cells, or adenoma cells, and culturing the cells or fragments in the presence of a Bone Morphogenetic Protein (BMP) inhibitor, a mitogenic growth factor, and a Wnt agonist when culturing epithelial stem cells and isolated tissue fragments. The invention further relates to a cell culture medium comprising a BMP inhibitor, a mitogenic growth factor, and a Wnt agonist, to the use of said culture medium, and to crypt-villus organoids, gastric organoids and pancreatic organoids that are formed in said culture medium.
    Type: Application
    Filed: November 13, 2013
    Publication date: September 11, 2014
    Applicant: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Toshiro Sato, Johannes C. Clevers, Meritxell Huch Ortega
  • Publication number: 20140243227
    Abstract: Culture media and methods for expanding and differentiating populations of stem cells and for obtaining organoids. Expanded cell populations and organoids obtainable by methods of the invention and their use in drug screening, toxicity assays and regenerative medicine.
    Type: Application
    Filed: June 11, 2012
    Publication date: August 28, 2014
    Applicant: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Johannes C. Clevers, Toshiro Sato, Meritxell Huch Ortega, Wouter Richard
  • Publication number: 20140044713
    Abstract: The present invention relates to compounds that act as agonists of the Wnt signalling pathway, compositions comprising these compounds and the uses of these compounds, both therapeutic and in research. The invention also provides methods of identifying compounds that act as agonists of the Wnt signalling pathway.
    Type: Application
    Filed: April 16, 2012
    Publication date: February 13, 2014
    Applicant: KONINKLIJKE NEDERLANDSE AKADEMIE VAN WETENSCHAPPEN
    Inventors: Willibrordus Barend Maria De Lau, Johannes Carolus Clevers
  • Patent number: 8642339
    Abstract: The invention relates to a method for culturing epithelial stem cells, isolated tissue fragments comprising the epithelial stem cells, or adenoma cells, and culturing the cells or fragments in the presence of a Bone Morphogenetic Protein (BMP) inhibitor, a mitogenic growth factor, and a Wnt agonist when culturing epithelial stem cells and isolated tissue fragments. The invention further relates to a cell culture medium comprising a BMP inhibitor, a mitogenic growth factor, and a Wnt agonist, to the use of the culture medium, and to crypt-villus organoids, gastric organoids and pancreatic organoids that are formed in the culture medium.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: February 4, 2014
    Assignee: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventors: Toshiro Sato, Johannes Carolus Clevers
  • Publication number: 20130178387
    Abstract: The invention provides a method for characterising a sample comprising nucleic acid derived from a cell. The method comprises determining whether a sample comprises at least a minimal sequence of at least one new microRNA (miRNA) according to the invention or a mammalian ortholog thereof and characterizing the sample on the basis of the presence or absence of the miRNA. The invention further provides nucleic acid molecules and collections thereof and their use in therapeutic and diagnostic applications. The invention furthermore provides a method for identifying a miRNA molecule or a precursor molecule thereof.
    Type: Application
    Filed: December 20, 2012
    Publication date: July 11, 2013
    Applicant: Koninklijke Nederlandse Akademie van Wetenschappen
    Inventor: Koninklijke Nederlandse Akademie van Wetenschappen