Patents Examined by Peter Paras, Jr.
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Patent number: 11492591Abstract: Disclosed herein are universal donor stem cells and related methods of their use and production. The universal donor stem cells disclosed herein are useful for overcoming the immune rejection in cell-based transplantation therapies. In certain embodiments, the universal donor stem cells disclosed herein do not express one or more MHC-I and MHC-II human leukocyte antigens. Similarly, in certain embodiments, the universal donor stem cells disclosed herein do not express one or more human leukocyte antigens (e.g., HLA-A, HLA-B and/or HLA-C) corresponding to MHC-I and MHC-II human leukocyte antigens, thereby rendering such cells hypoimmunogenic.Type: GrantFiled: October 9, 2021Date of Patent: November 8, 2022Assignee: President and Fellows of Harvard CollegeInventors: Torsten B. Meissner, Leonardo M. R. Ferreira, Jack L. Strominger, Chad A. Cowan
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Patent number: 11492596Abstract: The invention is directed to methods for culturing cells so that the cells are induced to differentiate into cells that express a hepatic stellate phenotype. The invention is also directed to cells produced by the methods of the invention. The cells are useful, among other applications, for treatment of liver deficiencies, liver metabolism studies, and liver toxicity studies, fibrogenic studies, or to support hepatocyte function in co-culture setting.Type: GrantFiled: December 1, 2016Date of Patent: November 8, 2022Assignees: Katholieke Universiteit Leuven, Institut D'Investigacions Biomediques August PI | Sunyer (IDIBAPS)Inventors: Catherine Verfaillie, Ruben Boon, Pau Sancho Bru, Mar Col Loperena, Luis Perea Sanchez
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Patent number: 11484554Abstract: The present disclosure provides cell-based compositions for treating diabetes, methods for identifying cells that preferentially differentiate into endoderm cells, and methods for preparing insulin-producing pancreatic cells, as well as related methods of use for treating diseases related to insulin deficiency.Type: GrantFiled: February 8, 2019Date of Patent: November 1, 2022Assignee: Seraxis, Inc.Inventor: William L. Rust
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Patent number: 11459582Abstract: Suggested is a method for enhancing the expression of taste related receptor genes encompassing the following steps: (i) providing a culture of mammalian cells, the genome of said cells comprising at least one sweet receptor domain; (ii) designing at least one type of single-guide RNA (sgRNA), the 10 to 30 nt guide sequence of said sgRNA being complementary to stretches within the non-coding and/or putative regulatory region upstream of the translation start codon of at least one sweet receptor gene; (iii) preparing a vector comprising an expression cassette encompassing at least one optionally modified CRISPR-Cas9, preferably CRISPR-dCas9VP64, and at least one optionally modified sg-RNA optionally containing aptamer structures for binding activator proteins; (iv) transfecting said culture of mammalian cells with said vector to target the genome for the presence of a DNA sequence that is complementary to the 10 to 30 nt guide sequence of said sgRNA; and (v) measuring the transcriptional enhancement of the sweType: GrantFiled: September 23, 2016Date of Patent: October 4, 2022Assignee: B.R.A.I.N. AGInventors: Pul Ümit, Michael Krohn
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Patent number: 11401504Abstract: Provided is a method for inducing CD4?CD8+ T cells having an antigen specific cytotoxic activity from pluripotent stem cells, comprising the steps of: (1) differentiating pluripotent stem cells to give a cell culture comprising CD4?CD8? T cells and CD4+CD8+ T cells, (2) removing CD4?CD8? cells from the cell culture obtained in step (1), and (3) differentiating the CD4+CD8+ cells in the cell culture into CD4?CD8+ T cells.Type: GrantFiled: April 14, 2017Date of Patent: August 2, 2022Assignee: KYOTO UNIVERSITYInventors: Hiroshi Kawamoto, Takuya Maeda, Kyoko Masuda
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Patent number: 11390884Abstract: The methods and compositions described herein surprisingly increase CRISPR/Cas-mediated gene editing in stem cells by transiently treating the cells with a stem cell viability enhancer prior to and/or after contacting the cells with one or more CRISPR/Cas9 components. Further, this treatment also surprisingly results in increased engraftment of the stem cells into the target tissue of a subject. The present disclosure also provides one or more modified CRISPR/Cas9 components which, when used in combination with the stem cell viability enhancer, further increases the frequency of gene editing in stem cells, increases stem cell viability, and increases stem cell engraftment.Type: GrantFiled: May 6, 2016Date of Patent: July 19, 2022Assignee: Editas Medicine, Inc.Inventor: Jennifer Leah Gori
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Patent number: 11369641Abstract: Methods, compositions, and kits for producing functional blood vessels, and progenitors thereof are provided. Human disorders of the vascular system are treated by reconstitution of functional vessels in vivo through co-transplantation with supporting niche stromal cells for treatment of ischemic injury in the peripheral limbs and heart. The cell populations of the invention, when engrafted into a recipient, anastomose with host vasculature and regenerate functional blood vessels.Type: GrantFiled: August 25, 2017Date of Patent: June 28, 2022Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Charles K. F. Chan, Andrew Stephen Lee, Michael T. Longaker, Irving L. Weissman, Joseph Wu, Divya Nag, Eun Young Seo
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Patent number: 11363812Abstract: Provided in the present invention is a cell freezing medium for clinical use. In particular, the cell freezing medium of the present invention comprises the following components: (1) human albumin; (2) cryoprotectant: the cryoprotectant comprises a combination of one or more of dimethyl sulfoxide, glycerol, and ethylene glycol; (3) a saline buffer; wherein the salt buffer is a solution containing Na+, K+, Mg+, Cl?, and CH3COO? ions; (4) a vitamin; and (5) an amino acid, wherein the human albumin concentration is 1%-20% (w/v). The cell, after long-term cryopreservation with the freezing medium of the present invention, has a high viability, and the cellular efficiency maintains a high uniformity. The grade of purity of the freezing medium of the present invention is the pharmaceutical grade or USP grade; and the freezing medium is safe and reliable for clinical use, and can be used or conventional adherent and suspension cells.Type: GrantFiled: December 25, 2017Date of Patent: June 21, 2022Assignee: CELLULAR BIOMEDICINE GROUP HK LIMITEDInventors: Fei Wang, Jiaping He, Dijun Zhao, Victor Liu, Dingzhu Yang
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Patent number: 9901082Abstract: Genetically modified non-human animals are provided that may be used to model human hematopoietic cell development, function, or disease. The genetically modified non-human animals comprise a nucleic acid encoding human IL-6 operably linked to an IL-6 promoter. In some instances, the genetically modified non-human animal expressing human IL-6 also expresses at least one of human M-CSF, human IL-3, human GM-CSF, human SIRPa or human TPO. In some instances, the genetically modified non-human animal is immunodeficient. In some such instances, the genetically modified non-human animal is engrafted with healthy or diseased human hematopoietic cells. Also provided are methods for using the subject genetically modified non-human animals in modeling human hematopoietic cell development, function, and/or disease, as well as reagents and kits thereof that find use in making the subject genetically modified non-human animals and/or practicing the subject methods.Type: GrantFiled: November 5, 2013Date of Patent: February 27, 2018Assignees: Regeneron Pharmaceuticals, Inc., Yale University, Institute for Research in Biomedicine (IRB)Inventors: Richard Flavell, Till Strowig, Markus G. Manz, Chiara Borsotti, Madhav Dhodapkar, Andrew J. Murphy, Sean Stevens, George D. Yancopoulos
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Patent number: 9803219Abstract: Described is an adenovirus derived helper virus which may comprise the adenoviral DNA sequences for E2a, S4 (orf6), the VA1 RNA gene, and the parvovirus VP capsid gene unit. Also described is a method of efficiently preparing a recombinant parvovirus (particle) which is based on the use of various adenoviral derived helper viruses/vectors.Type: GrantFiled: September 26, 2012Date of Patent: October 31, 2017Assignee: DEUTSCHES KREBSFORSCHUNGSZENTRUMInventors: Nazim El-Andaloussi, Antonio Marchini, Jean Rommelaere, Barbara Leuchs, Max Endele
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Patent number: 9102914Abstract: This disclosure relates generally to methods, apparatuses, and cellular compositions and cellular products that use a unique trophoblast-containing 3D matrix as a compartmental chamber for growing embryoid bodies that can be induced to differentiate into organ-specific cell types.Type: GrantFiled: February 3, 2011Date of Patent: August 11, 2015Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Yansong Gu
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Patent number: 9045731Abstract: This invention provides an isolated stem cell that has been modified to provide, enhance or contain the functional characteristics of the sarcoplasmic reticulum (SR). The isolated stem cells are modified in one or more of the following manners: by expressing a calcium channel protein; by expressing a calcium pump protein such as the sarcro/endoplasmic reticulum Ca2+-ATPase (SERCA) protein; by inhibiting or downregulating expression of the Na+/Ca+ exchanger (NCX) protein; by expressing a calcium handling protein; by expressing a transverse (t-tubule; and/or by expressing a transverse (t-tubule biogenic protein. After the cell has been modified, it may be expanded to a substantially homogenous population of these cells or alternatively, differentiated to a more mature cell type. Compositions containing these cells and population of cells are also provided by this invention.Type: GrantFiled: September 11, 2008Date of Patent: June 2, 2015Assignee: The Regents of the University of CaliforniaInventors: Ronald Li, Chung-wah Siu, Deborah K. Lieu, Jing Liu
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Patent number: 9029141Abstract: Disclosure of a mammalian cytoplasmic donor cell line. Disclosure of a patient specific cell line. Methods to obtain a mammalian cytoplasmic donor cell line by fusing a differentiated mammalian cell and a functionally enucleated mammalian embryonic cell line. Methods to obtain a mammalian cytoplasmic donor cell line by fusing a differentiated mammalian cell and a functionally enucleated human cancer cell. Methods to obtain a patient specific cell line of a cell type similar to a mammalian cytoplasmic donor cell line by functionally enucleating the mammalian cytoplasmic donor cell line and fusing the functionally enucleated mammalian cytoplasmic donor cell line with a differentiated cell obtained from the patient. A method of treatment of a human patient by administering the patient-specific cell line to the patient.Type: GrantFiled: April 14, 2011Date of Patent: May 12, 2015Inventor: Thiru V. Gopal
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Patent number: 9029336Abstract: An isolated nucleic acid molecule comprising a nucleotide sequence encoding a transcriptional enhancer of cytochrome P450 (P450) CYP3A4 production or expression, and uses of the nucleic acid molecule for screening compounds for xenobiotic induction of CYP3A4 expression in cells and animals.Type: GrantFiled: December 2, 2009Date of Patent: May 12, 2015Assignee: The University of SydneyInventors: Christopher Liddle, Bryan James Goodwin
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Patent number: 8962587Abstract: The present invention provides a method for decreasing the level of methylation of Oct4 promoter in a target cell, comprising transfecting the target cell with the combination of Oct4 cDNA and SirT1 cDNA. The invention also provides a method for inducing cytoprotective responses of a target cell, comprising transfecting the target cell with the combination of Oct4 cDNA and SirT1 cDNA. The invention further provides a pharmaceutical composition comprising Oct4 cDNA and SirT1 cDNA, or a polynucleotide comprising Oct4 cDNA and SirT1 cDNA.Type: GrantFiled: August 31, 2012Date of Patent: February 24, 2015Assignee: Taipei Veterans General HospitalInventors: Shih-Hwa Chiou, Jong-Yuh Cherng
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Patent number: 8809617Abstract: The present invention relates to methods and compositions for high content drug screening in C. elegans which may be used to identify compounds that treat disorders associated with protein aggregation.Type: GrantFiled: September 14, 2010Date of Patent: August 19, 2014Assignee: The University of Pittsburgh—of the Commonwealth System of Higher EducationInventors: Stephen C. Pak, David H. Perlmutter, Gary A. Silverman
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Patent number: 8623645Abstract: Disclosed herein are cell cultures comprising definitive endoderm cells and methods of producing the same. Also disclosed herein are cell populations comprising substantially purified definitive endoderm cells as well as methods for enriching, isolating and purifying definitive endoderm cells from other cell types.Type: GrantFiled: March 30, 2009Date of Patent: January 7, 2014Assignee: Viacyte, Inc.Inventors: Kevin Allen D'Amour, Alan D. Agulnick, Emmanuel E. Baetge
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Patent number: 8603811Abstract: Disclosed herein are cell cultures and enriched cell populations of endocrine precursor cells, immature pancreatic hormone-expressing cells and mature pancreatic hormone-expressing cells. Also disclosed herein are methods of producing such cell cultures and cell populations.Type: GrantFiled: October 17, 2011Date of Patent: December 10, 2013Assignee: ViaCyte, Inc.Inventors: Kevin A. D'Amour, Anne Bang, Emmanuel E. Baetge
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Patent number: 8592642Abstract: Disclosed is an evaluation method which can rapidly discriminate a Dao?/? homozygote from a large number of animals produced in a mating experiment between a DAO enzyme deficient mouse and other disease model mice, to rapidly perform a quantitative measurement of the D-amino acids contained in a large number of samples. The invention provides a method for evaluating the effect of a test condition on a mouse tissue, or cultured tissue cells derived from the tissue. The method comprises the steps of: providing a Dao1?/? mouse or the like; exposing the tissue from the Dao1?/? mouse or the like, to the test condition; and analyzing the effect of exposing the tissue from the Dao1?/? mouse or the like, to the test condition.Type: GrantFiled: July 31, 2009Date of Patent: November 26, 2013Assignees: Kyushu University, National University Corporation, Shiseido Company, Ltd.Inventors: Kenji Hamase, Kiyoshi Zaitsu, Masashi Mita, Yutaka Ashida, Yousuke Toujo
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Patent number: 8586024Abstract: The present invention is directed to long-lasting therapeutic formulations and their methods of use wherein the formulation comprises a genetically modified micro-organ that comprises a vector which comprises a nucleic acid sequence operably linked to one or more regulatory sequences, wherein the nucleic acid sequence encodes a therapeutic polypeptide, such as erythropoietin or interferon alpha.Type: GrantFiled: June 30, 2011Date of Patent: November 19, 2013Assignee: Medgenics Medical Israel Ltd.Inventors: Andrew L. Pearlman, Baruch S. Stern