Patents by Inventor Christian Gachet

Christian Gachet 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: 11773163
    Abstract: The present invention relates to methods and pharmaceutical compositions for the prophylactic treatment of metastases. The inventors showed in vivo that lung metastasis in GPVI deficient mice are reduced compared to controls. They demonstrated that GPVI is involved in platetet interaction with tumor cells and this interaction is mediated by EMMPRIN.). Using an anti-EMMPRIN antibody, they showed that the adhesion of platelets to tumors cells is decreased. In particular, the present invention relates to a method for the prophylactic treatment of metastases in a patient suffering from cancer comprising administering to the subject a therapeutically effective amount of an agent which inhibits the interaction between GPVI and EMMPRIN.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: October 3, 2023
    Assignees: INSERM (INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE), UNIVERSITÉ DE STRASBOURG, ETABLISSEMENT FRANçAIS DU SANG (EFS)
    Inventors: Pierre Mangin, Christian Gachet
  • Publication number: 20220135946
    Abstract: The invention relates to a method of producing CD34+CD41dim megakaryocyte (MK) progenitor cells, and a substantially pure cell population of megakaryocyte precursor cells obtained by said method and compositions thereof. The invention also relates to a method of producing proplatelet-bearing MKs and/or platelets using the CD34+CD41dim cells.
    Type: Application
    Filed: December 10, 2021
    Publication date: May 5, 2022
    Inventors: Catherine STRASSEL, Christian GACHET, François LANZA, Nathalie BROUARD
  • Patent number: 11236303
    Abstract: The invention relates to a method of producing CD34+CD4dim megakaryocyte (MK) progenitor cells, and substantially pure cell population of megakaryocyte precursor cells obtained by said method. The invention also relates to a method of producing proplatelet-bearing MKs and/or platelets using the CD34+CD4dim cells.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: February 1, 2022
    Assignees: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), ETABLISSMENT FRANçIS DU SANG, UNIVERSITÉ DE STRASBOURG
    Inventors: Catherine Strassel, Christian Gachet, François Lanza, Nathalie Brouard
  • Publication number: 20210148919
    Abstract: The present invention relates to a method for analyzing the platelets present in a blood sample, said method comprises the steps of (a) adding to said sample a ligand which binds to the MCH I coupled to a fluorochrome, (b) measuring the mean fluorescence intensity of the platelets (MFIplatelets) with a flow cytometer and c) measuring the mean “Forward Scatter” parameter (FSC) with said flow cytometer and determining the MFIplatelets/FSC ratio. The invention also relates to an in vitro method for diagnosing a peripheral or central thrombocytopenia in a subject.
    Type: Application
    Filed: July 29, 2019
    Publication date: May 20, 2021
    Inventors: Blandine MAITRE, Catherine ANGENIEUX, Henri DE LA SALLE, Christian GACHET
  • Publication number: 20190315862
    Abstract: The present invention relates to methods and pharmaceutical compositions for the prophylactic treatment of metastases. The inventors showed in vivo that lung metastasis in GPVI deficient mice are reduced compared to controls. They demonstrated that GPVI is involved in platetet interaction with tumor cells and this interaction is mediated by EMMPRIN.). Using an anti-EMMPRIN antibody, they showed that the adhesion of platelets to tumors cells is decreased. In particular, the present invention relates to a method for the prophylactic treatment of metastases in a patient suffering from cancer comprising administering to the subject a therapeutically effective amount of an agent which inhibits the interaction between GPVI and EMMPRIN.
    Type: Application
    Filed: November 21, 2017
    Publication date: October 17, 2019
    Inventors: Pierre MANGIN, Christian GACHET
  • Publication number: 20180216068
    Abstract: The invention relates to a method of producing CD34+CD4dim megakaryocyte (MK) progenitor cells, and substantially pure cell population of megakaryocyte precursor cells obtained by said method. The invention also relates to a method of producing proplatelet-bearing MKs and/or platelets using the CD34+CD4dim cells.
    Type: Application
    Filed: July 22, 2016
    Publication date: August 2, 2018
    Inventors: Catherine STRASSEL, Christian GACHET, François LANZA, Nathalie BROUARD
  • Patent number: 8802363
    Abstract: The present invention relates to a new method for the preservation of blood platelets. In particular, the present invention provides a method which includes submitting the platelets to zeodration carried out at temperatures between 18° C. and 24° C. The dried platelets thus obtained can be preserved at room temperature for long period of time. The invention also provides kits and compositions for using the preserved platelets.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: August 12, 2014
    Assignees: Inserm (Institut National de la Sante et de la Recherche Medicale), Universite de Strasbourg, Etablissement Francais du Sang
    Inventors: Francine Rendu, Thibault Donnet, Christian Gachet, Jean-Pierre Cazenave
  • Publication number: 20130078608
    Abstract: The present invention relates to a new method for the preservation of blood platelets. In particular, the present invention provides a method which includes submitting the platelets to zeodration carried out at temperatures between 18° C. and 24° C. The dried platelets thus obtained can be preserved at room temperature for long period of time. The invention also provides kits and compositions for using the preserved platelets.
    Type: Application
    Filed: November 26, 2010
    Publication date: March 28, 2013
    Applicant: ESTABLISSEMENT FRANCAIS DU SANG
    Inventors: Francine Rendu, Thibault Donnet, Christian Gachet, Jean-Pierre Cazenave
  • Patent number: 8153781
    Abstract: Disclosed are conjugates comprising a dendrimer and a ligand, which is a functionalized congener of an agonist or antagonist of a receptor of the G-protein coupled receptor (GPCR) superfamily, for example, wherein the functionalized congener is an A1 adenosine receptor agonist having a purine nucleoside moiety and a functional group at the N6 position of the purine nucleoside moiety, wherein the functional group has the formula (I): N6H—Ar1—CH2—C(?O)NH—R1 (I), wherein Ar1 and R1 as defined herein. Also disclosed are pharmaceutical compositions, methods of treating various diseases, and a diagnostic method employing such conjugates.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: April 10, 2012
    Assignees: The United States of America as represented by the Secretary, Department of Health and Human Services, Inserm
    Inventors: Kenneth A. Jacobson, Yoonkyung Kim, Athena Klutz, Beatrice Hechler, Christian Gachet
  • Publication number: 20090012035
    Abstract: Disclosed are conjugates comprising a dendrimer and a ligand, which is a functionalized congener of an agonist or antagonist of a receptor of the G-protein coupled receptor (GPCR) superfamily, for example, wherein the functionalized congener is an A1 adenosine receptor agonist having a purine nucleoside moiety and a functional group at the N6 position of the purine nucleoside moiety, wherein the functional group has the formula (I): N6H—Ar1—CH2—C(?O)NH—R1 (I), wherein Ar1 and R1 as defined herein. Also disclosed are pharmaceutical compositions, methods of treating various diseases, and a diagnostic method employing such conjugates.
    Type: Application
    Filed: June 20, 2008
    Publication date: January 8, 2009
    Applicants: GOVERNMENT OF THE UNITED STATES OF AMERICA, REPRESENTED BY THE SECRETARY, DEPA, INSERM U.311
    Inventors: Kenneth A. Jacobson, Yoonkyung Kim, Athena Klutz, Beatrice Hechler, Christian Gachet
  • Patent number: 5356846
    Abstract: The present invention relates to a hydrorefining catalyst containing ruthenium sulphide including the synthesis thereof and also to a process for hydrorefining hydrocarbon feedstocks using the aforementioned catalyst.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: October 18, 1994
    Assignee: Elf Antar France
    Inventors: Michele Breysse, Martine Cattenot, Thierry Des Courieres, Christian Gachet, Jean-Louis Portefaix