Patents by Inventor Etienne Sokal

Etienne Sokal 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).

  • Patent number: 9775890
    Abstract: The present invention relates to compositions and methods for cell transplantation. In particular, the present invention provides a composition comprising procoagulant cells and at least one factor Xa inhibitor, preferably rivaroxaban, as well as at least one thrombin inhibitor, preferably bivalirudin.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: October 3, 2017
    Assignee: UNIVERSITÉ CATHOLIQUE DE LOUVAIN
    Inventors: Xavier Stephenne, Etienne Sokal, Mustapha Najimi, Stéphane Eeckhoudt, Cédric Hermans
  • Publication number: 20170240863
    Abstract: Novel adult liver progenitor cells (called H2Stem Cells) have been have been characterized on the basis of a series of biological activities and markers. Methods for producing H2Stem Cells allow providing such cells in the form of adherent cells and three-dimensional cell clusters in suspension that can be differentiated into cells having strong liver-specific activities and/or that can be used for treating liver diseases or for evaluating the efficacy, the metabolism, and/or toxicity of a compound.
    Type: Application
    Filed: August 28, 2015
    Publication date: August 24, 2017
    Inventors: Etienne SOKAL, Sarah SNYKERS, Tuba BARAN, Kris GELLYNCK, Luca FALCIOLA
  • Publication number: 20170042940
    Abstract: The present invention relates to compositions and methods for cell transplantation. In particular, the present invention provides a composition comprising procoagulant cells and at least one antithrombin activator, preferably unfractionated heparin, as well as at least one thrombin inhibitor, preferably bivalirudin.
    Type: Application
    Filed: October 6, 2016
    Publication date: February 16, 2017
    Inventors: Xavier Stephenne, Etienne Sokal, Mustapha Najimi, Stéphane Eeckhoudt, Cédric Hermans
  • Publication number: 20160206664
    Abstract: Novel adult liver progenitor cells (called H2Stem Cells) have been have been characterized on the basis of a series of biological activities and markers. Methods for producing H2Stem Cells allow providing such cells in the form of adherent cells and three-dimensional cell clusters in suspension that can be differentiated into cells having strong liver-specific activities and/or that can be used for treating liver diseases or for evaluating the efficacy, the metabolism, and/or toxicity of a compound.
    Type: Application
    Filed: August 28, 2014
    Publication date: July 21, 2016
    Applicant: Promethera Biosciences S. A./N.V.
    Inventors: Etienne SOKAL, Sarah SNYKERS, Tuba BARAN, Kris GELLYNCK
  • Publication number: 20160129047
    Abstract: The invention relates to cell-free compositions obtained by culturing adult-derived human liver stem/progenitor cells (ADHLSC) in cell culture medium and isolating the resulting conditioned medium (ADHLSC-CM) that has advantageous property ties, such as anti-fibrotic effects. ADHLSC-CM, compositions based on ADHLSC-CM, and other related and derived products, can be used in cell culture processes or as a medicament, more particularly for the treatment of diseases involving organ injury, organ failure, in organ or cell transplantation or the pathological disruption, inflammation, degeneration, and/or proliferation of cells within a tissue or an organ, in particular within liver.
    Type: Application
    Filed: July 7, 2014
    Publication date: May 12, 2016
    Inventors: Mustapha Najimi, Etienne Sokal, Silvia Berardis
  • Publication number: 20150306147
    Abstract: A method of treating liver-based inborn, metabolic deficiencies is disclosed by treatment of an individual, such as a patient suffering from liver-based inborn, metabolic deficiencies, with human progenitor or stem cells, a cell population or their progeny. The cells used in the treatment have the following characteristics. They are positive for vimentin, ?-smooth muscle actin (ASMA), and for at least one mesenchymal marker such as CD90, CD29, CD73, and CD44. They are positive for at least one hepatocyte marker such as albumin, alpha-fetoprotein, alpha-1 antitrypsin, HNF-4 and MRP2 transporter. They express at least one hepatocyte-like property or function such as G6P, CYP1B1, CYP3A4, TDO, TAT, GS, GGT, CK8, and EAAT2. They are negative for at least one marker such as cytokeratin-19, CD45, CD34, CD49f, CD133, HLA-DR, and CD117. They have mesenchymal-like morphology. They originate from human adult liver cells.
    Type: Application
    Filed: July 9, 2015
    Publication date: October 29, 2015
    Inventors: Etienne Sokal, Mustapha Najimi
  • Patent number: 9107910
    Abstract: Isolated liver progenitor stem cells and cell populations of isolated liver progenitor stem cells are disclosed. The progenitor stem cells originate from adult liver, especially human adult liver. The isolated progenitor stem cells have uses in medicine, hepatology, inborn errors of liver metabolism transplantation, infectious diseases and liver failure. Methods of isolating these cells and their culture is described. The isolated cells are characterized before and after differentiation. Their use for transplantation and as animal models of human disease, toxicology and pharmacology is disclosed.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: August 18, 2015
    Assignee: UNIVERSITÉ CATHOLIQUE DE LOUVAIN
    Inventors: Etienne Sokal, Mustapha Najimi
  • Publication number: 20150037291
    Abstract: The present invention relates to compositions and methods for cell transplantation. In particular, the present invention provides a composition comprising procoagulant cells and at least one factor Xa inhibitor, preferably rivaroxaban, as well as at least one thrombin inhibitor, preferably bivalirudin.
    Type: Application
    Filed: June 15, 2012
    Publication date: February 5, 2015
    Applicant: UNIVERSITE CATHOLIQUE DE LOUVAIN
    Inventors: Xavier Stephenne, Etienne Sokal, Mustapha Najimi, Stéphane Eeckhoudt, Cédric Hermans
  • Publication number: 20140286917
    Abstract: Isolated liver progenitor stem cells and cell populations of isolated liver progenitor stem cells are disclosed. The progenitor stem cells originate from adult liver, especially human adult liver. The isolated progenitor stem cells have uses in medicine, hepatology, inborn errors of liver metabolism transplantation, infectious diseases and liver failure. Methods of isolating these cells and their culture is described. The isolated cells are characterized before and after differentiation. Their use for transplantation and as animal models of human disease, toxicology and pharmacology is disclosed.
    Type: Application
    Filed: June 3, 2014
    Publication date: September 25, 2014
    Applicant: Universite Catholique de Louvain
    Inventors: Etienne Sokal, Mustapha Najimi
  • Patent number: 8778607
    Abstract: A method of conducting in vitro toxicity testing is disclosed which includes the steps of exposing to a test agent a population of human liver progenitor or stem cells originated from human adult liver. The cells have the characteristics that the isolated human progenitor or stem cells express at least the mesenchymal markers vimentin and ?-smooth muscle actin (ASMA), the hepatocyte marker albumin (ALB), are negative for cytokeratin-19 (CK-19), and have mesenchymal-like morphology. One or more effects, if any, of the test agent on the population of human liver progenitor or stem cells are observed. Also disclosed are methods of conducting in vitro drug metabolism studies by exposing to a test agent a population of the human liver progenitor or stem cells and methods of testing infected human liver progenitor or stem cells for effects of a test agent.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: July 15, 2014
    Assignee: Universite Catholique de Louvain
    Inventors: Etienne Sokal, Mustapha Najimi
  • Publication number: 20140127676
    Abstract: A method of conducting in vitro toxicity testing is disclosed which includes the steps of exposing to a test agent a population of human liver progenitor or stem cells originated from human adult liver. The cells have the characteristics that the isolated human progenitor or stem cells express at least the mesenchymal markers vimentin and ?-smooth muscle actin (ASMA), the hepatocyte marker albumin (ALB), are negative for cytokeratin-19 (CK-19), and have mesenchymal-like morphology. One or more effects, if any, of the test agent on the population of human liver progenitor or stem cells are observed. Also disclosed are methods of conducting in vitro drug metabolism studies by exposing to a test agent a population of the human liver progenitor or stem cells and methods of testing infected human liver progenitor or stem cells for effects of a test agent.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicant: Universite Catholique de Louvain
    Inventors: Etienne Sokal, Mustapha Najimi
  • Patent number: 8673635
    Abstract: Isolated liver progenitor stem cells and cell populations of isolated liver progenitor stem cells are disclosed. The progenitor stem cells originate from adult liver, especially human adult liver. The isolated progenitor stem cells have uses in medicine, hepatology, inborn errors of liver metabolism transplantation, infectious diseases and liver failure. Methods of isolating these cells and their culture is described. The isolated cells are characterized before and after differentiation. Their use for transplantation and as animal models of human disease, toxicology and pharmacology is disclosed.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: March 18, 2014
    Assignee: Universite Catholique de Louvain
    Inventors: Etienne Sokal, Mustapha Najimi
  • Publication number: 20130302291
    Abstract: The present invention relates to compositions and methods for cell transplantation. In particular, the present invention provides a composition comprising procoagulant cells and at least one antithrombin activator, preferably unfractionated heparin, as well as at least one thrombin inhibitor, preferably bivalirudin.
    Type: Application
    Filed: January 25, 2012
    Publication date: November 14, 2013
    Applicant: UNIVERSITE CATHOLIQUE DE LOUVAIN
    Inventors: Xavier Stephenne, Etienne Sokal, Mustapha Najimi, Stephane Eeckhoudt, Cedric Hermans
  • Publication number: 20080311094
    Abstract: Isolated liver progenitor stem cells and cell populations of isolated liver progenitor stem cells are disclosed. The progenitor stem cells originate from adult liver, especially human adult liver. The isolated progenitor stem cells have uses in medicine, hepatology, inborn errors of liver metabolism transplantation, infectious diseases and liver failure. Methods of isolating these cells and their culture is described. The isolated cells are characterized before and after differentiation. Their use for transplantation and as animal models of human disease, toxicology and pharmacology is disclosed.
    Type: Application
    Filed: December 14, 2006
    Publication date: December 18, 2008
    Applicant: Universite Catholique de Louvain
    Inventors: Etienne Sokal, Mustapha Najimi