Patents by Inventor Salman R. Khetani

Salman R. Khetani 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: 11407979
    Abstract: The present disclosure relates to compositions and methods for culturing a population of hepatocytes in vitro, comprising co-culturing the population of hepatocytes with at least one non-parenchymal cell population and incubating the co-culture in culture medium, wherein the co-culture is periodically incubated in culture medium that does not comprise serum (serum-free culture medium).
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: August 9, 2022
    Assignee: COLORADO STATE UNIVERSITY RESEARCH FOUNDATION
    Inventors: Salman R. Khetani, Matthew D. Davidson
  • Patent number: 10717966
    Abstract: The present disclosure provides co-cultures of human pluripotent stem cell derived hepatocytes and at least one non-parenchymal cell population in vitro, methods of preparing the co-cultures and methods of using the co-cultures for high throughput screening and evaluation of drug candidates. The stem cell derived hepatocyte co-culture system provides an in vitro model in which cell viability and relatively mature hepatocyte phenotype of stem cell derived hepatocytes are maintained for extended periods relative to conventional monoculture.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: July 21, 2020
    Assignee: COLORADO STATE UNIVERSITY RESEARCH FOUNDATION
    Inventors: Salman R. Khetani, Dustin R. Berger, Brenton R. Ware
  • Patent number: 10266806
    Abstract: The present disclosure provides co-cultures of human pluripotent stem cell derived hepatocytes and at least one non-parenchymal cell population in vitro, methods of preparing the co-cultures and methods of using the co-cultures for high throughput screening and evaluation of drug candidates. The stem cell derived hepatocyte co-culture system provides an in vitro model in which cell viability and relatively mature hepatocyte phenotype of stem cell derived hepatocytes are maintained for extended periods relative to conventional monoculture.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: April 23, 2019
    Assignee: Colorado State University Research Foundation
    Inventors: Salman R. Khetani, Dustin R. Berger, Brenton R. Ware
  • Publication number: 20190071638
    Abstract: The present disclosure relates to compositions and methods for culturing a population of hepatocytes in vitro, comprising co-culturing the population of hepatocytes with at least one non-parenchymal cell population and incubating the co-culture in culture medium, wherein the co-culture is periodically incubated in culture medium that does not comprise serum (serum-free culture medium).
    Type: Application
    Filed: August 31, 2018
    Publication date: March 7, 2019
    Applicant: Colorado State University Research Foundation
    Inventors: Salman R. Khetani, Matthew D. Davidson
  • Publication number: 20190048315
    Abstract: The present disclosure provides co-cultures of human pluripotent stem cell derived hepatocytes and at least one non-parenchymal cell population in vitro, methods of preparing the co-cultures and methods of using the co-cultures for high throughput screening and evaluation of drug candidates. The stem cell derived hepatocyte co-culture system provides an in vitro model in which cell viability and relatively mature hepatocyte phenotype of stem cell derived hepatocytes are maintained for extended periods relative to conventional monoculture.
    Type: Application
    Filed: October 11, 2018
    Publication date: February 14, 2019
    Applicant: Colorado State University Research Foundation
    Inventors: Salman R. Khetani, Dustin R. Berger, Brenton R. Ware
  • Publication number: 20180321224
    Abstract: The present disclosure provides a culture medium formulation comprising human serum that can enhance functions of primary human hepatocytes, improve morphology, promote bile canaliculi formation and extend hepatocyte functional lifetime in vitro for over 10 weeks as compared to ˜3-4 weeks when using a conventional culture medium containing serum from bovine sources. The provided long-term culture model can be used to screen drugs for their efficacious and/or toxic effects over several weeks, improve drug-transporter assays via the larger bile canaliculi network, and to model several chronic liver diseases such as hepatitis, type 2 diabetes, malaria, liver fibrosis, liver cancer, and fatty liver disease.
    Type: Application
    Filed: November 11, 2016
    Publication date: November 8, 2018
    Applicant: Colorado State University Research Foundation
    Inventors: Salman R. Khetani, Matthew D. Davidson
  • Publication number: 20180223253
    Abstract: The disclosure relates to in vitro cultures of human hepatocytes, and in particular co-cultures systems including human hepatocytes, non-parenchymal cells, and human endothelial cells, and the use of the co-cultures in developing and screening drugs.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 9, 2018
    Applicant: Colorado State University Research Foundation
    Inventors: Salman R. Khetani, Mitchell J. Durham, Brenton R. Ware
  • Publication number: 20180172668
    Abstract: The present disclosure provides co-cultures of a population of hepatocytes, at least one non-parenchymal cell population, and a population of hepatic stellate cells in vitro, methods of preparing the co-cultures, and methods of using the co-cultures for high throughput screening and evaluation of drug candidates. The hepatocytes co-culture system provides an in vitro model in which both cell viability and phenotype are maintained for extended periods relative to conventional monoculture.
    Type: Application
    Filed: June 23, 2016
    Publication date: June 21, 2018
    Applicant: Colorado State University Research Foundation
    Inventors: Salman R. Khetani, Matthew D. Davidson
  • Patent number: 9441202
    Abstract: This invention relates to methods to stabilize and/or improve the function of parenchymal cells. Also provided are systems of co-cultures of hepatocyte-stabilizing non-parenchymal cells used in bioreactor microenvironments to identify hepatic stabilizing factors by gene-expression profiling.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: September 13, 2016
    Assignee: The Regents of the University of California
    Inventors: Salman R. Khetani, Sangeeta N. Bhatia
  • Publication number: 20160252494
    Abstract: The disclosure provides an in vitro culture systems. The invention provides methods and systems useful for developing in vitro an engineered tissue, method of using the tissue and compositions comprising the tissue.
    Type: Application
    Filed: September 28, 2015
    Publication date: September 1, 2016
    Inventors: Sangeeta N. BHATIA, Salman R. KHETANI
  • Publication number: 20150268223
    Abstract: Cell cultures are provided that include a population of micropatterened hepatocytes and one or more non-parenchymal cell populations, where the hepatocytes are infected with a virus or parasite and include a reporter of virus or parasite infection. Methods of making and using the cell cultures are also provided.
    Type: Application
    Filed: December 17, 2014
    Publication date: September 24, 2015
    Inventors: Sangeeta N. BHATIA, Salman R. KHETANI
  • Publication number: 20150240203
    Abstract: The present disclosure provides co-cultures of human pluripotent stem cell derived hepatocytes and at least one non-parenchymal cell population in vitro, methods of preparing the co-cultures and methods of using the co-cultures for high throughput screening and evaluation of drug candidates. The stem cell derived hepatocyte co-culture system provides an in vitro model in which cell viability and relatively mature hepatocyte phenotype of stem cell derived hepatocytes are maintained for extended periods relative to conventional monoculture.
    Type: Application
    Filed: January 14, 2015
    Publication date: August 27, 2015
    Inventors: Salman R. Khetani, Dustin R. Berger, Brenton R. Ware
  • Publication number: 20150184125
    Abstract: This invention relates to methods to stabilize and/or improve the function of parenchymal cells. Also provided are systems of co-cultures of hepatocyte-stabilizing non-parenchymal cells used in bioreactor microenvironments to identify hepatic stabilizing factors by gene-expression profiling.
    Type: Application
    Filed: August 7, 2014
    Publication date: July 2, 2015
    Inventors: Salman R. KHETANI, Sangeeta N. BHATIA
  • Publication number: 20150079673
    Abstract: The present disclosure provides a human hepatocyte co-culture which maintains the phenotype of cells from human donors with diabetes, and methods of using same. The hepatocyte co-culture system provides an in vitro model in which both cell viability and phenotype are maintained for extended periods relative to primary human hepatocyte monocultures, and is used in methods for high throughput screening and evaluation of drug candidates, and kits for performing such testing.
    Type: Application
    Filed: July 3, 2014
    Publication date: March 19, 2015
    Inventors: Salman R. Khetani, Michael D. Lehrer
  • Patent number: 8617815
    Abstract: This invention relates to methods to stabilize and/or improve the function of parenchymal cells. Also provided are systems of co-cultures of hepatocyte-stabilizing non-parenchymal cells used in bioreactor microenvironments to identify hepatic stabilizing factors by gene-expression profiling.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: December 31, 2013
    Assignee: The Regents of the University of California
    Inventors: Salman R. Khetani, Sangeeta N. Bhatia
  • Publication number: 20090202471
    Abstract: This invention relates to methods to stabilize and/or improve the function of parenchymal cells. Also provided are systems of co-cultures of hepatocyte-stabilizing non-parenchymal cells used in bioreactor microenvironments to identify hepatic stabilizing factors by gene-expression profiling.
    Type: Application
    Filed: August 4, 2005
    Publication date: August 13, 2009
    Applicant: The Regents of the University of California
    Inventors: Salman R. Khetani, Sangeeta N. Bhatia