Patents by Inventor Raphael Scharfmann

Raphael Scharfmann 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: 20200308548
    Abstract: The present invention provides an in vitromethod for obtaining cells of the pancreatic endocrine lineage, comprising a step of culturing pancreatic progenitor cells, wherein said pancreatic progenitor cells are in a cell culture medium comprising at least one BET inhibitor.
    Type: Application
    Filed: June 30, 2017
    Publication date: October 1, 2020
    Inventors: Lukas Huijbregts, Raphael Scharfmann, Christian Honore
  • Publication number: 20190136196
    Abstract: The present invention relates to a method for preparing commercial scale quantities of human functional Betacells and to the establishment of cell lines. It also relates to a method of diagnosis using Beta cell tumors or cells derived thereof. The method comprises sub-transplantation procedure to enrich the graft in proliferating Betacells, allowing to generate human Betacell lines. Such lines express little amount of insulin and have a gene expression profile that resembles to adult Betacells. In addition, the human Betacell lines are able to normalize glycemia of diabetic mice when transplanted, demonstrating their insulin secretion capabilities.
    Type: Application
    Filed: November 14, 2018
    Publication date: May 9, 2019
    Inventors: Paul CZERNICHOW, Raphaël SCHARFMANN, Philippe RAVASSARD
  • Patent number: 10167450
    Abstract: The present invention relates to a method for preparing commercial scale quantities of human functional Betacells and to the establishment of cell lines. It also relates to a method of diagnosis using Beta cell tumors or cells derived thereof. The method comprises sub-transplantation procedure to enrich the graft in proliferating Betacells, allowing to generate human Betacell lines. Such lines express little amount of insulin and have a gene expression profile that resembles to adult Betacells. In addition, the human Betacell lines are able to normalize glycemia of diabetic mice when transplanted, demonstrating their insulin secretion capabilities.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 1, 2019
    Assignees: SARL ENDOCELLS, INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Paul Czernichow, Raphaël Scharfmann, Philippe Ravassard
  • Patent number: 9493743
    Abstract: The present invention relates to a method for preparing commercial scale quantities of human functional beta cells and to the establishment of cell lines from non-foetal pancreatic tissues. It also relates to a method of diagnosis using beta cell tumors or cells derived thereof. The method comprises sub-transplantation procedure to enrich the graft in proliferating beta cells, allowing to generate human Beta cell lines. Such lines express, produce and secrete insulin upon glucose stimulation. They have a gene expression profile that resembles to adult beta cells. In addition, the human beta cell lines are able to normalize glycemia of diabetic mice when transplanted, demonstrating their insulin secretion capabilities.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: November 15, 2016
    Assignees: UNIVERCELL BIOSOLUTIONS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM)
    Inventors: Paul Czernichow, Philippe Ravassard, Raphael Scharfmann
  • Publication number: 20140302155
    Abstract: The present invention relates to a method for preparing commercial scale quantities of human functional beta cells and to the establishment of cell lines from non-foetal pancreatic tissues. It also relates to a method of diagnosis using beta cell tumors or cells derived thereof. The method comprises sub-transplantation procedure to enrich the graft in proliferating beta cells, allowing to generate human Beta cell lines. Such lines express, produce and secrete insulin upon glucose stimulation. They have a gene expression profile that resembles to adult beta cells. In addition, the human beta cell lines are able to normalize glycemia of diabetic mice when transplanted, demonstrating their insulin secretion capabilities.
    Type: Application
    Filed: October 18, 2012
    Publication date: October 9, 2014
    Inventors: Paul Czernichow, Philippe Ravassard, Raphael Scharfmann
  • Patent number: 8679842
    Abstract: The present invention discloses a method for increasing the pool of Ngn3+ endocrine progenitor cells obtained from stem cells, by contacting said stem cells with a SUR1/Kir6.2 channel inhibitor. The invention also relates to a method for increasing the mass of pancreatic endocrine cells, in particular of ? cells. The invention further concerns a method for treating diabetes.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: March 25, 2014
    Assignee: Assistance Publique—Hopitaux de Paris
    Inventors: Michel Polak, Raphaël Scharfmann, Samia Zertal-Zidani
  • Publication number: 20120219543
    Abstract: The invention is in the field of disorders of glucose homeostasis therapy. In particular the invention relates to a CFTR inhibitor or an inhibitor of CFTR gene expression for use in the treatment of disorders of glucose homeostasis. The present invention also relates to an in vitro methods for increasing the pool of Ngn3+ endocrine progenitor cells, pancreatic endocrine cells, or ? cell mass obtained from stem cells, wherein said methods comprises the step of contacting stem cells with a CFTR inhibitor or an inhibitor of CFTR gene expression. The present invention also relates to a method of testing a subject thought to have or be predisposed to having disorders of glucose homeostasis, which comprises the step of analyzing a sample of interest from said subject for: (i) detecting the presence of a mutation in the CFTR gene and/or its associated promoter, and/or (ii) analyzing the expression of the CFTR gene.
    Type: Application
    Filed: October 19, 2010
    Publication date: August 30, 2012
    Inventors: Raphael Scharfmann, Michael Polak, Samia Zertal
  • Publication number: 20110319870
    Abstract: The present invention discloses a method for increasing the pool of Ngn3+ endocrine progenitor cells obtained from stem cells, by contacting said stem cells with a SUR1/Kir6.2 channel inhibitor. The invention also relates to a method for increasing the mass of pancreatic endocrine cells, in particular of ? cells. The invention further concerns a method for treating diabetes.
    Type: Application
    Filed: March 2, 2010
    Publication date: December 29, 2011
    Applicant: ASSISTANCE PUBLIQUE- HOPITAUX DE PARIS
    Inventors: Michel Polak, Raphaël Scharfmann, Samia Zertal-Zidani
  • Publication number: 20110033930
    Abstract: The present invention relates to a method for obtaining Ngn3-expressing cells and insulin producing-beta cells by contacting a Pdx1-expressing pancreas explant with an amount of at least one histone deacetylase inhibitor (HDACi). The inventive methods have the advantage of being simple and quick, and of providing large amounts of Ngn3-expressing cells and insulin producing-beta cells, that are useful therapeutic tools. The invention also relates to a pharmaceutical composition for the treatment of diabetes which comprises an amount of at least one HDACi.
    Type: Application
    Filed: August 21, 2009
    Publication date: February 10, 2011
    Inventors: Raphael Scharfmann, Cecile Haumaitre-Sarron, Olivia Lenoir
  • Publication number: 20030219418
    Abstract: The invention provides a method of regenerating pancreas function in an individual by transplantation of an effective amount of functional pancreatic cells derived from embryonic pancreatic cells not older than 10 weeks of development. Also provided is the method of producing functional animal pancreatic cell, more precisely an immortalized human beta cell line. The invention also provides a method of treatment of diabetics. Also are provided pancreatic beta cells as a medicament to treat diabetics.
    Type: Application
    Filed: October 18, 2002
    Publication date: November 27, 2003
    Inventors: Paul Czernichow, Raphael Scharfmann, Philippe Ravassard, Jacques Mallet
  • Publication number: 20030077256
    Abstract: The invention provides a method of regenerating pancreas function in an individual by transplantation of an effective amount of functional pancreatic cells derived from embryonic pancreatic cells not older than 10 weeks of development. Also provided is the method of producing functional animal pancreatic cell.
    Type: Application
    Filed: October 19, 2001
    Publication date: April 24, 2003
    Inventors: Paul Czernichow, Raphael Scharfmann