Patents by Inventor Karen B. Chapman

Karen B. Chapman 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: 20230357829
    Abstract: The present disclosure relates to methods of identifying RNA targets of RNA binding proteins. In aspects, the disclosure relates to a method of identifying RNA molecules bound by RNA binding proteins. Some embodiments of the present disclosure relate to a method that can definitively identify direct RNA-target interactions with targeted proteins without the requirement for immunoprecipitation or gel extraction. In some embodiments, the method may include combining multiple antibodies in the same sample.
    Type: Application
    Filed: July 25, 2023
    Publication date: November 9, 2023
    Inventors: Daniel A. Lorenz, Karen B. Chapman
  • Patent number: 11795500
    Abstract: The present disclosure relates to methods of identifying RNA targets of RNA binding proteins. In aspects, the disclosure relates to a method of identifying RNA molecules bound by RNA binding proteins. Some embodiments of the present disclosure relate to a method that can definitively identify direct RNA-target interactions with targeted proteins without the requirement for immunoprecipitation or gel extraction. In some embodiments, the method may include combining multiple antibodies in the same sample.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: October 24, 2023
    Assignee: Eclipse Bioinnovations, Inc.
    Inventors: Daniel A. Lorenz, Karen B. Chapman
  • Publication number: 20230313177
    Abstract: The present disclosure relates to methods of enriching for nucleic acid sequence using a targeting proximity-base ligation. In some embodiments, the method comprises preparing nucleic acid from a sample, complexing the nucleic acid from a sample with the one or more targeting oligonucleotides comprising a targeting region linked to a reverse transcription region, and preparing a library of nucleic acids amplified from the oligonucleotides. Further, kits are disclosed for preparing and producing the methods described herein.
    Type: Application
    Filed: February 23, 2023
    Publication date: October 5, 2023
    Inventors: Daniel A. Lorenz, Karen B. Chapman
  • Publication number: 20230304076
    Abstract: The present disclosure relates to methods of identifying an RNA modification targets from a gene. In some embodiments, the method comprises preparing RNA from a sample, preparing one or more antibody conjugates comprising an antibody linked to an oligonucleotide, complexing the RNA from a sample with the one or more antibody conjugates, and preparing a library of nucleic acids amplified from the oligonucleotides. Further, kits are disclosed for preparing and producing the methods described herein.
    Type: Application
    Filed: December 29, 2022
    Publication date: September 28, 2023
    Inventors: Daniel A. Lorenz, Karen B. Chapman
  • Publication number: 20230250417
    Abstract: The present disclosure relates to methods of identifying RNA targets of ribosomes. Some embodiments of the present disclosure relate to a method that can look at multiple subunits and cofactors of the ribosome and the RNA transcripts that are associated with them. Further, kits are disclosed for preparing and producing the methods described herein.
    Type: Application
    Filed: December 29, 2022
    Publication date: August 10, 2023
    Inventors: Daniel A. Lorenz, Maya T. Kunkel, Alexander A. Shishkin, Karen B. Chapman
  • Publication number: 20230137823
    Abstract: Described herein are, at least in part, novel methods for enriching full length RNAs. In aspects of the disclosure, methods for enrichment of RNAs, kits for making such full length RNA reads, and composition for enriching RNAs or cDNA libraries derived therefrom are provided herein. In some embodiments, the method for enriching for full length RNA comprises isolating an RNA sample, contacting the RNA sample with a 5? exonuclease; and performing a reverse transcription reaction to convert the RNA to cDNA.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 4, 2023
    Inventors: DANIEL A. LORENZ, Anide Johansen, Karen B. Chapman
  • Publication number: 20230126137
    Abstract: The present disclosure relates to methods of identifying RNA targets of RNA binding proteins. In aspects, the disclosure relates to a method of identifying RNA molecules bound by RNA binding proteins. Some embodiments of the present disclosure relate to a method that can definitively identify direct RNA-target interactions with targeted proteins without the requirement for immunoprecipitation or gel extraction. In some embodiments, the method may include combining multiple antibodies in the same sample.
    Type: Application
    Filed: August 18, 2022
    Publication date: April 27, 2023
    Inventors: Daniel A. Lorenz, Karen B. Chapman
  • Publication number: 20220316013
    Abstract: The present invention relates to compositions and methods for the assay, diagnosis, prognosis or monitoring of the embryonic, fetal, and adult epigenetic states of a human genome. The disclosed methods are useful in monitoring the progress of in vitro and in vivo cellular reprogramming and the diagnosis, prognosis or monitoring of cancer in an individual. Specifically, the invention provides methods for the detection and interpretation of observed differential DNA methylation patterns and associated epigenetic modifications to core histones in determining the developmental status of human cells for the detection and characterization of cancer cells and determining optimum therapeutic modalities.
    Type: Application
    Filed: August 25, 2020
    Publication date: October 6, 2022
    Applicant: AgeX Therapeutics, Inc.
    Inventors: Michael D. West, Karen B. Chapman
  • Publication number: 20210102251
    Abstract: The generation of clinical-grade cell-based therapies from human embryonic stein cells or cells reprogrammed to pluripotency from somatic cells, requires stringent quality controls to insure that the cells have long enough telomeres and resulting cellular lifespan to be clinically useful, and normal gene expression and genomic integrity so as to insure cells with a desired and reproducible phenotype and to reduce the risk of the malignant transformation of cells. Assays useful in identifying human embryonic stem cell lines and pluripotent cells resulting from the transcriptional reprogramming of somatic cells that have embryonic telomere length are described as well as quality control assays for screening genomic integrity in cells expanded and banked for therapeutic use, as well as assays to identify cells capable of abnormal immortalization.
    Type: Application
    Filed: July 22, 2020
    Publication date: April 8, 2021
    Inventors: Michael G. WEST, Karen B. CHAPMAN, Walter D. FUNK
  • Patent number: 10745752
    Abstract: The generation of clinical-grade cell-based therapies from human embryonic stein cells or cells reprogrammed to pluripotency from somatic cells, requires stringent quality controls to insure that the cells have long enough telomeres and resulting cellular lifespan to be clinically useful, and normal gene expression and genomic integrity so as to insure cells with a desired and reproducible phenotype and to reduce the risk of the malignant transformation of cells. Assays useful in identifying human embryonic stem cell lines and pluripotent cells resulting from the transcriptional reprogramming of somatic cells that have embryonic telomere length are described as well as quality control assays for screening genomic integrity in cells expanded and banked for therapeutic use, as well as assays to identify cells capable of abnormal immortalization.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: August 18, 2020
    Inventors: Michael D. West, Karen B. Chapman, Walter D. Funk
  • Publication number: 20200181567
    Abstract: This invention generally relates to methods to obtain mammalian cells and tissues with patterns of gene expression similar to that of a developing mammalian embryo or fetus, and the use of such cells and tissues in the treatment of human disease and age-related conditions. More particularly, the invention relates to methods for identifying, expanding in culture, and formulating mammalian pluripotent stem cells and differentiated cells that differ from cells in the adult human in their pattern of gene expression, and therefore offer unique characteristics that provide novel therapeutic strategies in the treatment of degenerative disease.
    Type: Application
    Filed: October 25, 2019
    Publication date: June 11, 2020
    Applicant: Astellas Institute for Regenerative Medicine
    Inventors: Michael D. West, Karen B. Chapman, Roy Geoffrey Sargent
  • Patent number: 10501723
    Abstract: This invention generally relates to methods to obtain mammalian cells and tissues with patterns of gene expression similar to that of a developing mammalian embryo or fetus, and the use of such cells and tissues in the treatment of human disease and age-related conditions. More particularly, the invention relates to methods for identifying, expanding in culture, and formulating mammalian pluripotent stem cells and differentiated cells that differ from cells in the adult human in their pattern of gene expression, and therefore offer unique characteristics that provide novel therapeutic strategies in the treatment of degenerative disease.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: December 10, 2019
    Assignee: Astellas Institute for Regenerative Medicine
    Inventors: Michael D. West, Karen B. Chapman, Roy Geoffrey Sargent
  • Publication number: 20180170982
    Abstract: The vast differentiation potential of human embryonic and induced pluripotent stem cells, including their potential to cascade through all of the somatic cell lineages and to display the complete transcriptional regulatory network of human biology, has generated interest in deriving scalable, purified, and identified cell types and methods of discovering the precise structure of the human regulatory network. However, the innate capacity of pluripotent cells to display all these lineages is not necessarily reflected during their culture in vitro. The clonal isolation and propagation of progenitors greatly facilitates the generation of highly purified and indentified formulations for research and therapeutic purposes.
    Type: Application
    Filed: July 12, 2017
    Publication date: June 21, 2018
    Applicant: BioTime, Inc.
    Inventors: Michael D. West, Karen B. Chapman
  • Publication number: 20170335392
    Abstract: The generation of clinical-grade cell-based therapies from human embryonic stein cells or cells reprogrammed to pluripotency from somatic cells, requires stringent quality controls to insure that the cells have long enough telomeres and resulting cellular lifespan to be clinically useful, and normal gene expression and genomic integrity so as to insure cells with a desired and reproducible phenotype and to reduce the risk of the malignant transformation of cells. Assays useful in identifying human embryonic stem cell lines and pluripotent cells resulting from the transcriptional reprogramming of somatic cells that have embryonic telomere length are described as well as quality control assays for screening genomic integrity in cells expanded and banked for therapeutic use, as well as assays to identify cells capable of abnormal immortalization.
    Type: Application
    Filed: May 23, 2016
    Publication date: November 23, 2017
    Inventors: Michael D. West, Karen B. Chapman, Walter D. Funk
  • Patent number: 9732128
    Abstract: The vast differentiation potential of human embryonic and induced pluripotent stem cells, including their potential to cascade through all of the somatic cell lineages and to display the complete transcriptional regulatory network of human biology, has generated interest in deriving scalable, purified, and identified cell types and methods of discovering the precise structure of the human regulatory network. However, the innate capacity of pluripotent cells to display all these lineages is not necessarily reflected during their culture in vitro. The clonal isolation and propagation of progenitors greatly facilitates the generation of highly purified and identified formulations for research and therapeutic purposes.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: August 15, 2017
    Assignee: BioTime, Inc.
    Inventors: Michael D. West, Karen B. Chapman
  • Publication number: 20170226475
    Abstract: Methods for de-differentiating or altering the life-span of desired “recipient” cells, e.g., human somatic cells, by the introduction of cytoplasm from a more primitive, less differentiated cell type, e.g., oocyte or blastomere are provided. These methods can be used to produce embryonic stem cells and to increase the efficiency of gene therapy by allowing for desired cells to be subjected to multiple genetic modifications without becoming senescent. Such cytoplasm may be fractionated and/or subjected to subtractive hybridization and the active materials (sufficient for de-differentiation) identified and produced by recombinant methods.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 10, 2017
    Inventor: Karen B. Chapman
  • Publication number: 20170152475
    Abstract: This invention generally relates to methods to obtain mammalian cells and tissues with patterns of gene expression similar to that of a developing mammalian embryo or fetus, and the use of such cells and tissues in the treatment of human disease and age-related conditions. More particularly, the invention relates to methods for identifying, expanding in culture, and formulating mammalian pluripotent stem cells and differentiated cells that differ from cells in the adult human in their pattern of gene expression, and therefore offer unique characteristics that provide novel therapeutic strategies in the treatment of degenerative disease.
    Type: Application
    Filed: October 28, 2014
    Publication date: June 1, 2017
    Applicant: Advanced Cell Technology, Inc.
    Inventors: Michael D. West, Karen B. Chapman, Roy Geoffrey Sargent
  • Patent number: 9580683
    Abstract: Methods for de-differentiating or altering the life-span of desired “recipient” cells, e.g., human somatic cells, by the introduction of cytoplasm from a more primitive, less differentiated cell type, e.g., oocyte or blastomere are provided. These methods can be used to produce embryonic stem cells and to increase the efficiency of gene therapy by allowing for desired cells to be subjected to multiple genetic modifications without becoming senescent. Such cytoplasm may be fractionated and/or subjected to subtractive hybridization and the active materials (sufficient for de-differentiation) identified and produced by recombinant methods.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: February 28, 2017
    Assignee: Advanced Cell Technology, Inc.
    Inventor: Karen B. Chapman
  • Publication number: 20170003278
    Abstract: The invention relates to assays for screening growth factors, adhesion molecules, immunostimulatory molecules, extracellular matrix components and other materials, alone or in combination, simultaneously or temporally, for the ability to induce directed differentiation of pluripotent and multipotent stem cells.
    Type: Application
    Filed: April 29, 2016
    Publication date: January 5, 2017
    Inventors: Michael D. West, Raymond L. Page, Hans Schoeler, Karen B. Chapman
  • Publication number: 20160263203
    Abstract: The invention provides compositions and methods related to human telomerase reverse transcriptase (hTRT), the catalytic protein subunit of human telomerase. The polynucleotides and polypeptides of the invention are useful for diagnosis, prognosis and treatment of human diseases, for changing the proliferative capacity of cells and organisms, and for identification and screening of compounds and treatments useful for treatment of diseases such as cancers.
    Type: Application
    Filed: December 30, 2015
    Publication date: September 15, 2016
    Inventors: THOMAS R. CECH, JOACHIM LINGNER, TORU M. NAKAMURA, KAREN B. CHAPMAN, GREGG B. MORIN, CALVIN B. HARLEY, WILLIAM H. ANDREWS