Patents by Inventor Robert Samuel Langer

Robert Samuel Langer 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: 11279928
    Abstract: The disclosure relates to compositions comprising and methods for chemical modification of single guide RNA (sgRNA), tracrRNA and/or crRNA used individually or in combination with one another or Cas system components. Compositions comprising modified ribonucleic acids have been designed with chemical modification for even higher efficiency as unmodified native strand of sgRNA. Administration of modified ribonucleic acids will allow decreased immune response when administered to a subject, increased stability, increased editing efficiency and facilitated in vivo delivery of sgRNA via various delivery platforms. The disclosure also relates to methods of decreasing off-target effect of CRISPR and a CRISPR complex.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: March 22, 2022
    Assignee: Massachusetts Institute of Technology
    Inventors: Hao Yin, Daniel G. Anderson, Robert Samuel Langer
  • Publication number: 20210363491
    Abstract: A population of enteroendocrine cells (EEC) is obtained from a mammalian post-natal cell population, such as a population including post-natal stem cells, by treating the population with a plurality of small molecules that upregulate ChgA and promote differentiation of the cells to form the enteroendocrine cells. The upregulation of ChgA is such that the fraction of cells expressing CGA in the obtained cell population, as measured by a ChgA Immunostaining Assay, is at least about 1.5%. Small molecules that can be used to differentiate the post-natal cells into the enteroendocrine cells can include at least one of a Wnt activator, a Notch inhibitor, a Wnt inhibitor, a MEK/ERK inhibitor, a growth factor, a HDAC inhibitor, a Histone Methylation Inhibitor, a Tgf-? inhibitor, and a NeuroD1 activator. Also, the insulin expression of a population of mammalian cells is increased by treating the population with a plurality of small molecules that increase the insulin expression.
    Type: Application
    Filed: May 31, 2021
    Publication date: November 25, 2021
    Inventors: Jeffrey Michael Karp, Robert Samuel Langer, Xiaolei Yin
  • Publication number: 20210301254
    Abstract: Described are cell culture solutions and systems for epithelial stem cell and organoid cultures, formation of epithelial constructs and uses of the same in transplantation.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 30, 2021
    Inventors: Jeffrey Michael Karp, Xiaolei Yin, Marc David Succi, Robert Samuel Langer
  • Patent number: 11021687
    Abstract: A population of enteroendocrine cells (EEC) is obtained from a mammalian post-natal cell population, such as a population including post-natal stem cells, by treating the population with a plurality of small molecules that upregulate ChgA and promote differentiation of the cells to form the enteroendocrine cells. The upregulation of ChgA is such that the fraction of cells expressing CGA in the obtained cell population, as measured by a ChgA Immunostaining Assay, is at least about 1.5%. Small molecules that can be used to differentiate the post-natal cells into the enteroendocrine cells can include at least one of a Wnt activator, a Notch inhibitor, a Wnt inhibitor, a MEK/ERK inhibitor, a growth factor, a HDAC inhibitor, a Histone Methylation Inhibitor, a Tgf-? inhibitor, and a NeuroD1 activator. Also, the insulin expression of a population of mammalian cells is increased by treating the population with a plurality of small molecules that increase the insulin expression.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: June 1, 2021
    Assignees: The Brigham And Women's Hospital, Inc., Massachusetts Institute Of Technology
    Inventors: Jeffrey Michael Karp, Robert Samuel Langer, Xiaolei Yin
  • Patent number: 10954490
    Abstract: Described are cell culture solutions and systems for epithelial stem cell and organoid cultures, formation of epithelial constructs and uses of the same in transplantation.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: March 23, 2021
    Assignees: The Brigham and Women's Hospital, Inc., Massachusetts Institute of Technology
    Inventors: Jeffrey Michael Karp, Xiaolei Yin, Marc David Succi, Robert Samuel Langer
  • Publication number: 20200237852
    Abstract: Leucine-rich repeat-containing G-protein coupled receptor 5-positive (LGR5+) intestinal cells are contacted with an inhibitor of exportin 1 (XPO1), thereby producing functionally differentiated intestinal cells. The LGR5+ cells can also be contacted with a Wnt agonist. The LGR5+ cells can also be contacted with a Notch inhibitor.
    Type: Application
    Filed: November 27, 2019
    Publication date: July 30, 2020
    Inventors: Benjamin Elliott Mead, Lauren Levy, Daphne Sze, Robert Samuel Langer, Jr., Jeffrey Michael Karp, Kazuki Hattori, Alexander Kann Shalek
  • Publication number: 20190233816
    Abstract: The disclosure relates to compositions comprising and methods for chemical modification of single guide RNA (sgRNA), tracrRNA and/or crRNA used individually or in combination with one another or Cas system components. Compositions comprising modified ribonucleic acids have been designed with chemical modification for even higher efficiency as unmodified native strand of sgRNA. Administration of modified ribonucleic acids will allow decreased immune response when administered to a subject, increased stability, increased editing efficiency and facilitated in vivo delivery of sgRNA via various delivery platforms. The disclosure also relates to methods of decreasing off-target effect of CRISPR and a CRISPR complex.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 1, 2019
    Inventors: Robert Samuel LANGER, Hao Yin, Daniel G. Anderson, Wen Xue, Chun-Qing Song
  • Publication number: 20190017015
    Abstract: Described are cell culture solutions and systems for epithelial stem cell and organoid cultures, formation of epithelial constructs and uses of the same in transplantation.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 17, 2019
    Inventors: Jeffrey Michael Karp, Xiaolei Yin, Marc David Succi, Robert Samuel Langer
  • Publication number: 20180256502
    Abstract: Provided herein are compositions for treating acute, chronic, or post-operative pain in a subject, said compositions comprising a Nav1.7 selective inhibitor and a biodegradable carrier, wherein the agent is incorporated within the biodegradable carrier. Methods of treating pain in a subject and kits for producing compositions for treating acute, chronic or post-operative pain in in a subject are also disclosed herein.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 13, 2018
    Inventors: Francis M. Reynolds, Jason M. Criscione, Robert Samuel Langer, Dana Tilley, Haining Dai
  • Patent number: 10041047
    Abstract: Described are cell culture solutions and systems for epithelial stem cell and organoid cultures, formation of epithelial constructs and uses of the same in transplantation.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: August 7, 2018
    Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Jeffrey Michael Karp, Xiaolei Yin, Marc David Succi, Robert Samuel Langer
  • Patent number: 10041046
    Abstract: Described are cell culture solutions and systems for epithelial stem cell and organoid cultures, formation of epithelial constructs and uses of the same in transplantation. A single layer of epithelial cells that actively self-renews and is organized into crypts and villi clothes the intestine. It has been recently shown that the renewal of intestinal epithelium is driven by Lgr5+ intestinal stem cells (ISC) that reside at the base of these crypts (Barker et al., 2007). Lgr5+ stem cells can be isolated and cultured in vitro to form organoids containing crypt-vcllus structures that recapitulates the native intestinal epithelium (Sato et al., 2009).
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 7, 2018
    Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Jeffrey Michael Karp, Xiaolei Yin, Marc David Succi, Robert Samuel Langer
  • Publication number: 20180187186
    Abstract: The disclosure relates to compositions comprising and methods for chemical modification of single guide RNA (sgRNA), tracrRNA and/or crRNA used individually or in combination with one another or Cas system components. Compositions comprising modified ribonucleic acids have been designed with chemical modification for even higher efficiency as unmodified native strand of sgRNA. Administration of modified ribonucleic acids will allow decreased immune response when administered to a subject, increased stability, increased editing efficiency and facilitated in vivo delivery of sgRNA via various delivery platforms. The disclosure also relates to methods of decreasing off-target effect of CRISPR and a CRISPR complex.
    Type: Application
    Filed: June 29, 2016
    Publication date: July 5, 2018
    Applicant: Massachusetts Institute of Technology
    Inventors: Hao Yin, Daniel G. Anderson, Robert Samuel Langer
  • Publication number: 20180098934
    Abstract: Described herein are systems and methods for transmucosal delivery of active agents. In some embodiments, a system may comprise one or more mucoadhesive devices configured for release of an active agent.
    Type: Application
    Filed: December 12, 2017
    Publication date: April 12, 2018
    Inventors: Baruch Z. HARRIS, Vijay M. K. MURTHY, David Adam STEINBERG, Rodney PEARLMAN, Howard Brian ROSEN, Robert Samuel LANGER, Hila ESPTEIN-BARASH, Jonathan Robert BEHR, Samir Suresh MITRAGOTRI
  • Publication number: 20170349884
    Abstract: A population of enteroendocrine cells (EEC) is obtained from a mammalian post-natal cell population, such as a population including post-natal stem cells, by treating the population with a plurality of small molecules that upregulate ChgA and promote differentiation of the cells to form the enteroendocrine cells. The upregulation of ChgA is such that the fraction of cells expressing CGA in the obtained cell population, as measured by a ChgA Immunostaining Assay, is at least about 1.5%. Small molecules that can be used to differentiate the post-natal cells into the enteroendocrine cells can include at least one of a Wnt activator, a Notch inhibitor, a Wnt inhibitor, a MEK/ERK inhibitor, a growth factor, a HDAC inhibitor, a Histone Methylation Inhibitor, a Tgf-? inhibitor, and a NeuroD1 activator. Also, the insulin expression of a population of mammalian cells is increased by treating the population with a plurality of small molecules that increase the insulin expression.
    Type: Application
    Filed: January 6, 2017
    Publication date: December 7, 2017
    Inventors: Jeffrey Michael Karp, Robert Samuel Langer, Xiaolei Yin
  • Publication number: 20170239183
    Abstract: Provided herein are compositions for treating acute, chronic, or post-operative pain in a subject, said compositions comprising a Nav1.7 selective inhibitor and a biodegradable carrier, wherein the agent is incorporated within the biodegradable carrier. Methods of treating pain in a subject and kits for producing compositions for treating acute, chronic or post-operative pain in a subject are also disclosed herein.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 24, 2017
    Inventors: Francis M. Reynolds, Jason M. Criscione, Robert Samuel Langer, Dana Tilley, Haining Dai
  • Publication number: 20170226477
    Abstract: Described are cell culture solutions and systems for epithelial stem cell and organoid cultures, formation of epithelial constructs and uses of the same in transplantation.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 10, 2017
    Inventors: Jeffrey Michael Karp, Xiaolei Yin, Marc David Succi, Robert Samuel Langer
  • Publication number: 20170196800
    Abstract: Described herein are systems and methods for transmucosal delivery of active agents. In some embodiments, a system may comprise one or more mucoadhesive devices configured for release of an active agent.
    Type: Application
    Filed: November 18, 2016
    Publication date: July 13, 2017
    Inventors: Baruch Z. HARRIS, Vijay M. K. MURTHY, David Adam STEINBERG, Rodney PEARLMAN, Howard Brian ROSEN, Robert Samuel LANGER, Hila ESPTEIN-BARASH, Jonathan Robert BEHR, Samir Suresh MITRAGOTRI
  • Publication number: 20160194604
    Abstract: Described are cell culture solutions and systems for epithelial stem cell and organoid cultures, formation of epithelial constructs and uses of the same in transplantation. A single layer of epithelial cells that actively self-renews and is organized into crypts and villi clothes the intestine. It has been recently shown that the renewal of intestinal epithelium is driven by Lgr5+ intestinal stem cells (ISC) that reside at the base of these crypts (Barker et al., 2007). Lgr5+ stem cells can be isolated and cultured in vitro to form organoids containing crypt-vcllus structures that recapitulates the native intestinal epithelium (Sato et al., 2009).
    Type: Application
    Filed: March 11, 2014
    Publication date: July 7, 2016
    Inventors: Jeffrey Michael Karp, Xiaolei Yin, Marc David Succi, Robert Samuel Langer
  • Publication number: 20160101056
    Abstract: Described herein are systems and methods for transmucosal delivery of active agents. In some embodiments, a system may comprise one or more mucoadhesive devices configured for release of an active agent.
    Type: Application
    Filed: September 28, 2015
    Publication date: April 14, 2016
    Inventors: Baruch Z. HARRIS, Vijay M. K. MURTHY, David Adam STEINBERG, Rodney PEARLMAN, Howard Brian ROSEN, Robert Samuel LANGER, Hila ESPTEIN-BARASH, Jonathan Robert BEHR, Samir Suresh MITRAGOTRI
  • Publication number: 20150174076
    Abstract: Described herein are systems and methods for transmucosal delivery of active agents. In some embodiments, a system may comprise one or more mucoadhesive devices configured for release of an active agent.
    Type: Application
    Filed: June 14, 2013
    Publication date: June 25, 2015
    Inventors: Baruch Z. Harris, Vijay M.K. Murthy, David Adam Steinberg, Rodney Pearlman, Howard Brian Rosen, Robert Samuel Langer, Hila Esptein-Barash, Jonathan Robert Behr, Samir Suresh Mitragotri