Method Of Co-culturing Cells Patents (Class 435/373)
  • Patent number: 11866734
    Abstract: The preset invention relates to a novel super-enhancer-bound Ash2l/OSN complex that can drive enhance activation, govern pluripotency network and sternness circuitry, and a reprogramming system or method through the regulation of this super-enhancer, Ash2l, to modulate pluripotency and cell fates. Ash2l directly binds to super-enhancers of several stemness genes to regulate pluripotency and self-renewal in pluripotent stem cells. Ash2l recruits Oct4/Sox2/Nanog (OSN) to form Ash2l/OSN complex at the super-enhancers of Jarid2, Nanog, Sox2, and Oct4, and further drives enhancer activation, upregulation of stemness genes, and maintains the pluripotent circuitry. Ash2l knockdown abrogates the OSN recruitment to all super-enhancers and further hinders the enhancer activation.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: January 9, 2024
    Assignee: TAIPEI VETERANS GENERAL HOSPITAL
    Inventors: Shih-Hwa Chiou, Ping-Hsing Tsai, Yueh Chien
  • Patent number: 11434459
    Abstract: Cell culture systems and methods provide improved immunotherapeutic product manufacturing with greater scalability, flexibility, and automation. Cell culture systems are configured with interchangeable cartridges, allowing versatility and scalability. Systems are configured to have multiple connected cell culture chambers, which allows parallel processing of different types of cells. Gas-impermeable cell culture chambers and methods for generating cells in closed systems prevent contamination and user error. Methods for recycling cell culture medium provide additional efficiencies.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: September 6, 2022
    Assignee: FLASKWORKS, LLC
    Inventors: Shashi K. Murthy, Andrew Kozbial
  • Patent number: 11345887
    Abstract: The present invention relates to a composition for preserving cells and a method for preserving cells and, more specifically, to: a composition for preserving cells, containing, as active ingredients, plant-derived recombinant human serum albumin and plant peptides, wherein the composition maintains a high cellular survival rate while maintaining animal-free and xeno-free properties and is stable without changes in cellular morphology or surface expression factors in the short-term preservation of cells such as stem cells or primary cultured cells; and a method for preserving cells by using the same.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: May 31, 2022
    Assignee: CEFO CO., LTD
    Inventors: Hyun Sook Park, Sun Ray Lee, Jin Yup Lee, Hyun Jung Mo
  • Patent number: 11266695
    Abstract: Methods for the in vitro production of enucleated red blood cells and the enucleated red blood cells thus prepared are provided. Such enucleated red blood cells may express a sortaggable surface protein, which allows for surface modification in the presence of a sortase. Also described herein are surface modified enucleated red blood cells, e.g., conjugated with an agent of interest such as a peptide, a detectable label, or a chemotherapeutic agent, and uses thereof in delivering the agent to a subject.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: March 8, 2022
    Assignee: Whitehead Institute for Biomedical Research
    Inventors: Harvey Lodish, Hidde L. Ploegh, Hsiang-Ying Sherry Lee, Jiahai Shi, Lenka Hoffman, Novalia Pishesha
  • Patent number: 11155778
    Abstract: Novel methods and apparatus are disclosed for cell culture and cell recovery. The methods and apparatus simplify the process of cell separation from media, minimize potential damage to gas permeable devices during fluid handling, and allow closed system automated cell culture and cell recovery from gas permeable devices.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 26, 2021
    Assignee: Wilson Wolf Manufacturing
    Inventors: Daniel P. Welch, John R. Wilson
  • Patent number: 10731135
    Abstract: A method for vascular regeneration comprises delivering endothelial cells to a lung scaffold, delivering perivascular cells to the lung scaffold, and providing a multiphase culture program to the scaffold. The multiphase culture program comprises a first phase including delivering an angiogenic medium, e.g., having 40-100 ng/ml of pro-angiogenic factors, and a second phase including delivering a stabilization medium, e.g., having 0.5-2% of serum and 1-20 ng/ml of angiogenic factors.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: August 4, 2020
    Assignee: The General Hospital Corporation
    Inventors: Xi Ren, Harald C. Ott
  • Patent number: 10640561
    Abstract: Methods are provided to manipulate phagocytosis of cells, including hematopoietic cells, e.g. circulating hematopoietic cells, bone marrow cells, acute leukemia cells, etc.; and solid tumor cells. In some embodiments of the invention the circulating cells are hematopoietic stem cells, or hematopoietic progenitor cells, particularly in a transplantation context, where protection from phagocytosis is desirable. In other embodiments the circulating cells are leukemia cells, particularly acute myeloid leukemia (AML), where increased phagocytosis is desirable.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: May 5, 2020
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Siddhartha Jaiswal, Irving L. Weissman, Ravindra Majeti, Mark P. Chao
  • Patent number: 10508264
    Abstract: The present invention relates to a method for culturing bone marrow cells, in which bone marrow cells are applied to a porous polyimide film and cultured. Moreover, the present invention relates to a porous polyimide film for healing a bone injury site.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: December 17, 2019
    Assignees: UBE INDUSTRIES, LTD., KURUME UNIVERSITY
    Inventors: Keisuke Ohta, Shingo Hirashima, Masahiko Hagihara, Motohisa Shimizu
  • Patent number: 10317395
    Abstract: Provided are compositions and methods that relate ex vivo organoids that contain B cells and stromal cells in a three dimensional material includes a hydrogel. The hydrogel can be formed without exposure to ultraviolet light from an electronic ultraviolet light source. The hydrogel contains silicate nanoparticles (SiNPs) that are ionically bonded to a polyampholytic gelatin. The three dimensional material can be held at a temperature of at least 37 degrees Celsius and does not liquefy. The organoids exhibit mechanical properties that are similar to certain lymphoid tissues, and can include a germinal center. Methods of making the organoids are included, as are high throughput screening approaches that use the organoids for screening a variety of test agents. The organoids can synthesize a variety of compounds that can be recovered from the organoids or the organoid culture medium.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: June 11, 2019
    Assignee: Cornell University
    Inventors: Ankur Singh, Alberto Purwada
  • Patent number: 10113150
    Abstract: Engineered cardiac tissues are provided herein. The tissues include cardiomyocyte cells derived from a pluripotent cell, fibroblast cells and extracellular matrix components. Methods of using the tissues described herein are also provided.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: October 30, 2018
    Assignee: InvivoSciences, Inc.
    Inventor: Tetsuro Wakatsuki
  • Patent number: 10054528
    Abstract: Disclosed is a method for demonstrating the capability of strengthening scalp and/or preventing dandruff of a personal care product or component thereof, the method comprising selecting a first portion of a solid porous article of non-animal origin, treating the first portion of the article with the personal care product or the component thereof, subjecting the treated first portion to a drying step and mechanically treating the dried first portion.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: August 21, 2018
    Assignee: Conopco, Inc.
    Inventors: Zihui Ling, Xiaoying Bian
  • Patent number: 9994868
    Abstract: Provided are a method for preparing a mammalian ovum or embryo in which zona pellucida has been thinned or eliminated, and a method for fertilization using the mammalian ovum prepared by the aforementioned method. The resulting mammalian ovum or embryo is capable of realizing an improved fertilization rate and development rate when used for in vitro fertilization, transplantation of a fertilized ovum, or for preparation of an embryo in the early stages of development used in the production of a genetically modified animal.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: June 12, 2018
    Assignee: NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Naomi Nakagata, Toru Takeo
  • Patent number: 9945854
    Abstract: Autologous bone marrow cells (BMC) are transplanted to a heterologous site in a patient after a sample of the patient's BMC has been tested and found to have a phenotypic profile which meets minimum criteria for transplantation. The phenotypic profile may be obtained by screening a sample of bone marrow cells (BMC) from the patient for the phenotypic profile, such as a CD profile, the phenotype profile may be assessed to determine the likelihood that the BMC will be suitable for transplantation to the heterologous tissue site without enriching particular phenotypic population(s) of the BMC.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 17, 2018
    Assignee: BioCardia Inc.
    Inventors: Peter Altman, Cheryl Wong Po Foo
  • Patent number: 9713629
    Abstract: The present invention provides novel compositions comprising multipotent cells or microvascular tissue, wherein the cells or tissue has been sterilized and/or treated to inactivated viruses, and related methods of using these compositions to treat or prevent tissue injury or disease in an allogeneic subject.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: July 25, 2017
    Assignee: MicroVascular Tissues, Inc.
    Inventors: Dale R. Peterson, Ralph-Heiko Mattern, Corey Wilson-Wirth, Kevin L. Ohashi
  • Patent number: 9655927
    Abstract: Disclosed herein are cell preparations useful for modulating various peripheral immune functions, methods for making said cell preparations, and methods for their use.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: May 23, 2017
    Assignee: SanBio, Inc.
    Inventors: Mo Dao, Casey C. Case
  • Patent number: 9533009
    Abstract: Human progenitor T cells that are able to successfully engraft a murine thymus and differentiate into mature human T and NK cells are described. The human progenitor T cells have the phenotype CD34+CD7+CD 1a?CD5? or CD34+CD7+CD1a?CD5+ and are derived from human hematopoietic stem cells, embryonic stem cells and induced pluripotent stem cells by coculture with cells expressing a Notch receptor ligand (OP9-DL1 or OP9-DL4). Such cells are useful in a variety of applications including immune reconstitution, the treatment of immunodeficiencies and as carriers for genes used in gene therapy.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: January 3, 2017
    Assignee: Sunnybrook Health Sciences Centre
    Inventors: Juan Carlos Zuniga-Pflucker, Geneve Awong, Ross La Motte-Mohs
  • Patent number: 9453197
    Abstract: A method of making a carrier for growing cells, including providing a polymer film; embossing a patterned surface one or more sides of the polymer film with an embossing roller; generating a pattern of structured indentations on the polymer film; and discretizing the patterned polymer film into a plurality of portions. The embossing pattern generates relief features on the carrier surface. An alternative method of making a carrier is also provided, including extruding a polymer film; embossing a patterned surface on the polymer film with a roller; generating a pattern of structured indentations on the polymer film; imparting a surface treatment to the film; and discretizing the treated polymer film into a plurality of portions.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: September 27, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Yosang Yoon, Slawomir Rubinsztajn, Joel Matthew Caraher, Gary Stephen Balch, Prameela Susarla
  • Patent number: 9453242
    Abstract: Provided are a method for preparing a mammalian ovum or embryo in which zona pellucida has been thinned or eliminated, and a method for fertilization using the mammalian ovum prepared by the aforementioned method. The method for thinning or eliminating zona pellucida of a mammalian ovum or embryo involves treating or culturing the mammalian ovum or embryo (such as an unfertilized ovum, a fertilized ovum, or an embryo in the early stages of development) in a culture medium containing a reducing agent having SH groups (such as reduced glutathione or DTT). The resulting mammalian ovum or embryo (such as an unfertilized ovum, a fertilized ovum, or an embryo in the early stages of development) in which zona pellucida has been thinned or eliminated is capable of realizing an improved fertilization rate and development rate when used for in vitro fertilization, transplantation of a fertilized ovum, or preparation of an embryo in the early stages of development used in the production of a genetically modified animal.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: September 27, 2016
    Assignee: NATIONAL UNIVERISTY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Naomi Nakagata, Toru Takeo
  • Patent number: 9206392
    Abstract: An isolated primate embryonic cell is provided as well as cell cultures and cell lines derived therefrom. Also provided are methods of generating and using such cells.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: December 8, 2015
    Assignee: Technion Research & Development Foundation Limited
    Inventors: Michal Amit, Joseph Itskovitz-Eldor
  • Patent number: 9050315
    Abstract: The present invention provides a therapeutic approach to maintain and expand HSCs in vivo using currently available medications that target GSK-3 and mTOR. The present invention also provides a system and method for the ex vivo culturing of HSCs, where an mTOR inhibitor is combined with a GSK-3 inhibitor within the culturing conditions.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: June 9, 2015
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Peter S. Klein, Jian Huang
  • Publication number: 20150147806
    Abstract: Disclosed is a method for preparing a transferable membrane having a nanometer scale dimension in thickness and pore size by non-solvent vapor-induced phase separation process, comprising spin-casting a polymer solution in a closed humid chamber and controlling the relative humidity (RH) of the chamber using at least one supersaturated salts solution whereby the density of the pores are controlled. Also provided is a TNT membrane prepared by the present method and its use. The present membrane can be advantageously used as co-culture platform facilitating versatile and controllable cell co-culture assays and further allowing the quantitative analysis of paracrine communications between cells for example between cancer cells and different types of stromal cells by providing an in vivo-like environment, which can offer more in-vivo-like results to identify key signaling molecules for therapeutic targets of a disease.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Applicant: SNU R&DB FOUNDATION
    Inventors: Kookheon CHAR, Jwa-Min NAM, Yeongseon JANG, Hyojin LEE
  • Patent number: 9028840
    Abstract: The present invention discloses an ex vivo method for producing a preparation containing CD4+ T cells specific for EBV structural antigens for use in the prophylaxis and treatment of patients with a reduced T cell activity in order to prevent or treat growth of EBV infected B cells.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: May 12, 2015
    Assignees: Helmholtz Zentrum Munchen Deutsches Forschungzentrum fur Gesundheit und Umwelt (GmbH), Deutsches Krebsforschungzentrum (DKFZ)
    Inventors: Dinesh Adhikary, Uta Behrends, Josef Mautner, Henri-Jacques Delecluse, Regina Feederle
  • Patent number: 9029139
    Abstract: Methods for generating and using omentum cells, and particularly stromal cells and/or omentum stem cells, in medical treatments such as tissue repair and regeneration to facilitate healing from traumatic injury to an abdominal organ, and immune modulation treatments such as suppression of immune responses and inflammation and prevention of tissue fibrosis. According to one aspect, a medical procedure is performed on a patient that involves harvesting omental tissue from the patient, and then transferring the omental tissue to an organ of the patient. At least a portion of the harvested omental tissue may be activated prior to transferring the omental tissue to the organ. Alternatively, the transferred omental tissue may comprise non-lymphoid cells isolated from the omentum tissue and obtained by homogenizing at least a portion of the harvested omental tissue.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: May 12, 2015
    Assignee: Loyola University of Chicago
    Inventors: Makio Iwashima, Robert Love, Rudolf Karl Braun, Perianna Sethupathi, Katherine Lathrop Knight
  • Publication number: 20150125540
    Abstract: A composition includes an isolated cell; at least one particle within said cell; and at least one active agent associated with the particle, wherein the active agent is capable of being released from the cell. A method includes administration of such a cell to a subject.
    Type: Application
    Filed: January 5, 2015
    Publication date: May 7, 2015
    Inventors: Jeffrey M. Karp, Debanjan Sarkar, Praveen Kumar Vemula
  • Publication number: 20150125880
    Abstract: The present invention relates to methods to elicit immature antigen-presenting cells loaded with apoptotic cells or apoptotic bodies. The present invention also relates to methods of obtaining antigen-specific regulatory T cells in vitro or in vivo. Cells loaded with apoptotic bodies/cells and regulatory T cells are obtainable by inducing apoptosis of antigen-presenting cells by cytolytic CD4+ T cells. The cells are used for suppressing or preventing diseases such as autoimmune diseases, graft rejection and allergic diseases, and medicaments related thereto. Further disclosed are the use of antigen-specific regulatory T cells for suppressing or preventing diseases such as autoimmune diseases, graft rejection and allergic diseases, and medicaments related thereto. Further disclosed are populations of antigen-specific regulatory T cells obtained by said method.
    Type: Application
    Filed: April 29, 2013
    Publication date: May 7, 2015
    Inventor: Jean-Marie Saint-Remy
  • Publication number: 20150104864
    Abstract: A method is described for generating a novel cancer stem cell line that possesses characteristics associated with stem cells, by co-culturing a human immortalized cell line and bone marrow-derived mesenchymal stem cells, and the novel cancer stem cell line established thereby. This method is able to readily generate cancer stem cells that are low in the level of structural chromosomal aberrations and are excellent in oncogenicity, and is effectively applicable to the development of anti-cancer drugs and personalized drugs.
    Type: Application
    Filed: March 24, 2014
    Publication date: April 16, 2015
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sunghoi Hong, Seung-Ick Oh, Hang-Soo Park
  • Publication number: 20150104431
    Abstract: Disclosed are compositions and methods for repairing and/or regenerating cardiac tissue by administering adult bone marrow-derived stem cells to an individual. These cells can be administered as a liquid injectible or as a preparation of cells in a matrix which is or becomes solid or semi-solid. The cells can be genetically modified to enhance myocardial differentiation and integration. Also disclosed is a method for replacing cells ex vivo in a heart valve for implantation.
    Type: Application
    Filed: September 23, 2014
    Publication date: April 16, 2015
    Inventors: Mark F. Pittenger, Stephen L. Gordon, Alastair Morgan Mackay
  • Patent number: 9006148
    Abstract: Methods of using a progressive cavity pump as a bioreactor are disclosed. Methods of isolating a biological product, such as pancreatic islet cells, using the bioreactor are also disclosed.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: April 14, 2015
    Inventor: Harvey Zar
  • Patent number: 9005966
    Abstract: Provided are methods and compositions useful for producing and propagating stem cells from fibroblasts.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: April 14, 2015
    Assignee: The Regents of the University of California
    Inventors: William E. Lowry, Kathrin Plath
  • Patent number: 9005965
    Abstract: Provided are systems and methods for providing human cell cultures. Further provided are cultures of feeder cells for use in stem cell technology, as well as cultures, culture systems and methods for maintenance and propagating of stem cells in an undifferentiated state as well as for the development of somatic cells cultures from stem cells, the somatic cell cultures being free of extraembryonic cells.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: April 14, 2015
    Assignee: Hadasit Medical Research Services & Development Limited
    Inventors: Etti Ben Shushan, Shelly Tannenbaum, Pavel Itsykson, Eyal Banin, Benjamin Reubinoff
  • Patent number: 9005885
    Abstract: Presented is an airway organ bioreactor apparatus, and methods of use thereof, as well as bioartificial airway organs produced using the methods, and methods of treating subjects using the bioartificial airway organs.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: April 14, 2015
    Assignee: The General Hospital Corporation
    Inventor: Harald C. Ott
  • Publication number: 20150099267
    Abstract: The present invention is directed towards methods of culturing non-keratinocyte epithelial cells, with the methods comprising culturing non-keratinocyte epithelial cells in the presence of feeder cells and a calcium-containing medium while inhibiting the activity of Rho kinase (ROCK) in the feeder cell, the non-keratinocyte epithelial cells or both during culturing.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 9, 2015
    Inventors: Richard Schlegel, Xuefeng Liu
  • Patent number: 8999167
    Abstract: There is provided a composite porous membrane comprising a porous membrane comprised of an organic polymeric compound, and a supporting porous membrane adjacent to the porous membrane, characterized in that the organic polymeric compound constituting the porous membrane penetrates in at least part of a surface adjacent to porous membrane of the supporting porous membrane, the porous membrane having specified opening ratio, average pore diameter, standard deviation of pore diameter, ratio of through pore, average membrane thickness, standard deviation of membrane thickness and internal structure, and that the supporting porous membrane has communicating pores of 0.5 D ?m or greater average pore diameter. Further, there are provided a blood filtration membrane comprising the composite porous membrane; a leukocyte removing filter unit comprising the composite porous membrane as a second filter; and, utilizing the composite porous membrane, a cell culturing diaphragm and method of cell culturing.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: April 7, 2015
    Assignee: Asahi Kasei Medical Co., Ltd.
    Inventors: Yasuhiro Nakano, Naoko Ishihara
  • Publication number: 20150086518
    Abstract: This document provides methods and materials related to tissue generation. For example, methods for generating pancreatic tissue and providing a population of hormone-secreting cells, e.g., insulin-producing cells in a human subject are provided.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 26, 2015
    Inventors: Harald C. Ott, Claudius Conrad
  • Publication number: 20150079584
    Abstract: A three dimensional cell culture and bioreactor system is provided. The system comprises one or more cell culture chamber. Each cell culture chamber comprises an inlet port and an outlet port in fluid communication with the cell culture chamber. The cell culture chambers may be segregated or in fluid communication with one another. The systems may be used to conduct drug efficacy test, isolate certain cell types from a complex tissue sample of multiple cell types, allow for the ex vivo culturing of patient tissue samples to help guide the course of treatment, and conduct co-culture experiments.
    Type: Application
    Filed: March 17, 2014
    Publication date: March 19, 2015
    Inventors: Matthew R. Gevaert, David E. Orr, Hal Crosswell
  • Patent number: 8980628
    Abstract: This invention relates to methods of producing hair folliclesin vitro, compositions for producing hair follicles in vitro, in vitro produced hair follicles, methods of providing an in vitro produced hair shaft at an interfollicular or intrafollicular site, methods of treating hair loss by providing an in vitro produced hair shaft at an interfollicular or intrafollicular site and assays for studying the effect of test agents on hair biology. The invention also provides the similar methods and products which are, or use, immature follicles (“defined herein as proto-hairs”). The invention provides a method for in vitro production of a hair follicle or a proto-hair comprising co-culturing dermal papilla cells with keratinocytes, and optionally with melanocytes.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: March 17, 2015
    Assignee: Aderans Research Institute, Inc.
    Inventors: Jizeng Qiao, Jeffrey Keeler Teumer, Erica Jean Philips
  • Publication number: 20150072422
    Abstract: The present invention relates to methods of enhancing proliferation and/or survival of mesenchymal precursor cells (MPC) and/or progeny derived therefrom in vitro or in vivo comprising exposing the MPC or progeny to SDF-1 or analog thereof. The invention also relates to compositions comprising isolated MPCs or progeny derived therefrom and SDF-1 or analogues thereof. The present invention also relates to using such methods and compositions for ex vivo or in vivo bone formation in mammals.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 12, 2015
    Applicant: ANGIOBLAST SYSTEMS, INC.
    Inventors: Stan Gronthos, Andrew Christopher William Zannettino
  • Patent number: 8956860
    Abstract: An improved method of culturing cells for cell therapy applications that includes growing desired cells in the presence of antigen-presenting cells and/or feeder cells and with medium volume to surface area ratio of up to 1 ml/cm2 if the growth surface is not comprised of gas permeable material and up to 2 ml/cm2 if the growth surface is comprised of gas permeable material. The desired cells are at a surface density of less than 0.5Ă—106 cells/cm2 at the onset of a production cycle, and the surface density of the desired cells plus the surface density of the antigen presenting cells and/or feeder cells are at least about 1.25Ă—105 cells/cm2.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: February 17, 2015
    Inventors: Juan F. Vera, Cliona M. Rooney, Ann M. Leen, John R. Wilson
  • Patent number: 8956865
    Abstract: The present invention relates generally to the fields of reproductive medicine. More specifically, the present invention relates to a novel human embryo co-culture system to improve human embryo growth in vitro and, consequently, increase pregnancy rates in infertile women undergoing in vitro fertilization (IVF) treatment. More particularly, the present invention relates to a method of growing an embryo to a blastocyst stage of development comprising the step of coculturing said embryo in the presence of a population of cumulus cells.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: February 17, 2015
    Assignees: Institut National de la Sante et de la Recherche Medicale (INSERM), Universite Montpellier 1, Centre Hospitalier Universitaire de Montpellier
    Inventors: Samir Hamamah, Said Assou
  • Patent number: 8956870
    Abstract: A method is provided, including obtaining a population of isolated immature antigen-presenting cells; enriching a population of isolated stem/progenitor cells within a larger population of cells; activating the population of immature antigen-presenting cells; and following the activating, inducing at least one process selected from the group consisting of: differentiation, expansion, activation, secretion of a molecule, and expression of a marker, by exposing the enriched stem/progenitor cell population to the population of activated antigen-presenting cells. Inducing the at least one process includes generating a lineage specific precursor/progenitor population (LSP) from the enriched stem/progenitor cell population.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: February 17, 2015
    Assignee: Biogencell, Ltd.
    Inventor: Yael Porat
  • Patent number: 8956868
    Abstract: The present invention provides a method for producing iPS cells, comprising reacting cells with at least one connexin inhibitor and at least one TGF? signaling inhibitor; iPS cells comprising at least one connexin inhibitor; an iPS cell inducer comprising at least one inhibitor selected from the group consisting of connexin inhibitors and TGF? signaling inhibitors; a medium for inducing iPS cells, comprising at least one inhibitor selected from the group consisting of connexin inhibitors and TGF? signaling inhibitors; and a kit for inducing iPS cells, comprising at least one inhibitor selected from the group consisting of connexin inhibitors and TGF? signaling inhibitors.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: February 17, 2015
    Assignee: LSIP, LLC
    Inventors: Tetsuro Takamatsu, Ping Dai
  • Patent number: 8945922
    Abstract: Provided are an iPS cell derived from a somatic cell such as an NKT cell, having the ?-chain region of the T cell antigen receptor gene rearranged to uniform V?-J? in an NKT cell receptor-specific way, NKT cells differentiated from the iPS cell, a method of creating the same, and an immune cell therapy agent prepared using cells differentiated from the iPS cell.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: February 3, 2015
    Assignee: Riken
    Inventors: Hiroshi Watarai, Haruhiko Koseki, Masaru Taniguchi, Shin-ichiro Fujii
  • Patent number: 8945920
    Abstract: The invention concerns a method for culturing cells derived from the adipose tissue and in particular the stromal vascular fraction (SVF) to induce formation of cardiomyocytes, the use of the cells obtained by said culture method to reconstitute an ischemized cardiac zone, in particular following an infarction, as well as a pharmaceutical composition containing said cells. The method for obtaining cardiac cells comprises at least the following steps: a) selecting cardiomyogenic cells from the stromal vascular fraction (SVF); b) culturing the cells selected at step a) in a liquid medium optimized for expanding ex vivo the cardiomyogenic cells; c) maintaining and expanding said cells by successive passes in the liquid medium; and d) obtaining cardiac cells.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: February 3, 2015
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Louis Casteilla, Valérie Planat-Benard, Luc Penicaud, Carine Chanut
  • Patent number: 8936650
    Abstract: Described is a scaffold that is strong enough to resist forces that exist inside a body, while possessing biocompatible surfaces. The scaffold is formed of a layer of mesh (e.g., Stainless Steel or Nitinol) that is tightly enclosed by a multi-layer biological matrix. The biological matrix can include three layers, such a first layer (smooth muscle cells) formed directly on the metal mesh, a second layer (fibroblast/myofibroblast cells) formed on the first layer, and a third layer (endothelial cells) formed on the second layer. The scaffold can be formed to operate as a variety of tissues, such as a heart valve or a vascular graft. For example, the mesh and corresponding biological matrix can be formed as leaflets, such that the scaffold is operable as a tissue heart valve.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: January 20, 2015
    Assignee: The Regents of the University of California
    Inventors: Seyedhamed Alavi, Arash Kheradvar
  • Patent number: 8927282
    Abstract: The present invention relates to cell and tissue culture. In particular, the present invention provides a method for preparing an organotypic culture using dissociated cells or microexplants obtained from an animal organ. The method for preparing an organotypic culture comprises culturing cells from an organ on a surface characterized in that the cells are compacted. The invention further relates to a high-throughput method for the preparation of a collection of organotypic cultures. The invention further relates to a device for carrying out a method of organotypic culture according to the invention.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: January 6, 2015
    Assignee: Capsant Neurotechnologies S.A.
    Inventor: Luc Stoppini
  • Patent number: 8927273
    Abstract: The present invention provides a method for preparing a cytotoxic lymphocyte characterized in that the method comprises the step of carrying out at least one step selected from induction, maintenance and expansion of a cytotoxic lymphocyte using a medium containing serum and plasma at a total concentration of 0% by volume or more and less than 5% by volume, in the presence of fibronectin, a fragment thereof or a mixture thereof.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: January 6, 2015
    Assignee: Takara Bio Inc.
    Inventors: Mitsuko Ideno, Nobuko Muraki, Kinuko Ogawa, Masayuki Kishimoto, Tatsuji Enoki, Hiroaki Sagawa, Ikunoshin Kato
  • Publication number: 20150004145
    Abstract: The disclosure relates to the development of methods for making hematopoietic stem cells from differentiated cells by introducing and expressing transcription factors. More particularly, the disclosure provides methods for redirecting differentiated cells to a hematopoietic stem cell state or to a hemogenic endothelial cell state by direct programming with specific combinations of transcription factors.
    Type: Application
    Filed: January 30, 2013
    Publication date: January 1, 2015
    Inventors: Ihor R. Lemischka, Kateri Moore, Carlos Filipe Pereira
  • Publication number: 20140377864
    Abstract: The present invention relates to methods for recellularization of blood vessels. This method is particularly useful for producing an allogeneic vein, wherein a donor vein is decellularized and then recellularized using whole blood or bone marrow stem cells. The allogeneic veins produced by the methods disclosed herein are particularly advantageous for implantation or transplantation into patients with vascular diseases.
    Type: Application
    Filed: March 1, 2013
    Publication date: December 25, 2014
    Inventors: Suchitra Sumitran-Holgersson, Michael Olausson
  • Publication number: 20140377232
    Abstract: Methods of generating an innervated muscle structures are disclosed as well as bioengineered structures for tissue repair or regeneration. The methods can include the steps of obtaining populations of smooth muscle cells and neuronal progenitor cells and then seeding the cells together onto a matrix material, followed by culturing the seeded cells to form an innervated smooth muscle cell construct of directionally oriented smooth muscle cells. In one embodiment, the neuronal progenitor cells can be seeded first as neurospheres in a biocompatible solution, e.g., a collagen/laminin solution, and allowed to gel. Next, a second suspension of smooth muscle cells can be deposited as separate layer. Multiple layer structures of alternating muscle or neuron composition can also be formed in this manner. Differentiation of the neuronal progenitor cells can be induced by exposure to a differentiation medium, such as Neurobasal A medium and/or exposure to a differentiating agent, such as B-27 supplement.
    Type: Application
    Filed: January 31, 2013
    Publication date: December 25, 2014
    Applicant: WAKE FOREST UNIVERSITY HEALTH SCIENCES
    Inventor: Khalil Bitar
  • Publication number: 20140377233
    Abstract: The present invention is directed to a method of preparing an artificial tooth primordium in vitro, comprising the steps: a) providing isolated mesenchymal dental pulp cells; and b) culturing the mesenchymal dental pulp cells under non-adherent conditions to form a cell aggregate representing an artificial tooth primordium; as well as to an artificial tooth primordium derived therefrom.
    Type: Application
    Filed: February 20, 2013
    Publication date: December 25, 2014
    Inventors: Roland Lauster, Uwe Marx, Jennifer Binder, Mark Rosowski