Method Of Co-culturing Cells Patents (Class 435/373)
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Patent number: 12060581Abstract: The invention provides methods and compositions for producing a multi-layered cellular structure or blastocyst-like structure from a cell population of reprogrammed somatic cells.Type: GrantFiled: November 24, 2021Date of Patent: August 13, 2024Assignee: MONASH UNIVERSITYInventors: Jose Polo, Xiaodong Liu, Jia Ping Tan
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Patent number: 12060573Abstract: Stabilized amorphous calcium carbonate (ACC) as a supplement of cell culture media and the cell culture medium supplements comprising stabilized ACC are provided. In particular the stabilized ACC is useful for enhancing the growth of cell and tissue cultures, gametes and embryos in vitro.Type: GrantFiled: January 17, 2017Date of Patent: August 13, 2024Assignee: AMORPHICAL LTD.Inventors: Yosef Ben, Abraham Shahar, Amir Arav
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Patent number: 11866734Abstract: 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: GrantFiled: August 26, 2020Date of Patent: January 9, 2024Assignee: TAIPEI VETERANS GENERAL HOSPITALInventors: Shih-Hwa Chiou, Ping-Hsing Tsai, Yueh Chien
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Patent number: 11434459Abstract: 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: GrantFiled: October 20, 2020Date of Patent: September 6, 2022Assignee: FLASKWORKS, LLCInventors: Shashi K. Murthy, Andrew Kozbial
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Patent number: 11345887Abstract: 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: GrantFiled: August 6, 2015Date of Patent: May 31, 2022Assignee: CEFO CO., LTDInventors: Hyun Sook Park, Sun Ray Lee, Jin Yup Lee, Hyun Jung Mo
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Patent number: 11266695Abstract: 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: GrantFiled: March 23, 2018Date of Patent: March 8, 2022Assignee: Whitehead Institute for Biomedical ResearchInventors: Harvey Lodish, Hidde L. Ploegh, Hsiang-Ying Sherry Lee, Jiahai Shi, Lenka Hoffman, Novalia Pishesha
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Patent number: 11155778Abstract: 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: GrantFiled: October 5, 2017Date of Patent: October 26, 2021Assignee: Wilson Wolf ManufacturingInventors: Daniel P. Welch, John R. Wilson
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Patent number: 10731135Abstract: 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: GrantFiled: September 9, 2016Date of Patent: August 4, 2020Assignee: The General Hospital CorporationInventors: Xi Ren, Harald C. Ott
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Patent number: 10640561Abstract: 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: GrantFiled: July 18, 2017Date of Patent: May 5, 2020Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Siddhartha Jaiswal, Irving L. Weissman, Ravindra Majeti, Mark P. Chao
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Patent number: 10508264Abstract: 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: GrantFiled: April 20, 2018Date of Patent: December 17, 2019Assignees: UBE INDUSTRIES, LTD., KURUME UNIVERSITYInventors: Keisuke Ohta, Shingo Hirashima, Masahiko Hagihara, Motohisa Shimizu
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Patent number: 10317395Abstract: 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: GrantFiled: August 31, 2016Date of Patent: June 11, 2019Assignee: Cornell UniversityInventors: Ankur Singh, Alberto Purwada
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Patent number: 10113150Abstract: 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: GrantFiled: June 6, 2012Date of Patent: October 30, 2018Assignee: InvivoSciences, Inc.Inventor: Tetsuro Wakatsuki
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Patent number: 10054528Abstract: 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: GrantFiled: November 10, 2014Date of Patent: August 21, 2018Assignee: Conopco, Inc.Inventors: Zihui Ling, Xiaoying Bian
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Patent number: 9994868Abstract: 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: GrantFiled: August 17, 2016Date of Patent: June 12, 2018Assignee: NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITYInventors: Naomi Nakagata, Toru Takeo
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Patent number: 9945854Abstract: 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: GrantFiled: September 1, 2017Date of Patent: April 17, 2018Assignee: BioCardia Inc.Inventors: Peter Altman, Cheryl Wong Po Foo
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Patent number: 9713629Abstract: 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: GrantFiled: September 17, 2013Date of Patent: July 25, 2017Assignee: MicroVascular Tissues, Inc.Inventors: Dale R. Peterson, Ralph-Heiko Mattern, Corey Wilson-Wirth, Kevin L. Ohashi
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Patent number: 9655927Abstract: Disclosed herein are cell preparations useful for modulating various peripheral immune functions, methods for making said cell preparations, and methods for their use.Type: GrantFiled: June 6, 2014Date of Patent: May 23, 2017Assignee: SanBio, Inc.Inventors: Mo Dao, Casey C. Case
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Patent number: 9533009Abstract: 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: GrantFiled: May 22, 2014Date of Patent: January 3, 2017Assignee: Sunnybrook Health Sciences CentreInventors: Juan Carlos Zuniga-Pflucker, Geneve Awong, Ross La Motte-Mohs
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Patent number: 9453242Abstract: 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: GrantFiled: September 12, 2011Date of Patent: September 27, 2016Assignee: NATIONAL UNIVERISTY CORPORATION KUMAMOTO UNIVERSITYInventors: Naomi Nakagata, Toru Takeo
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Patent number: 9453197Abstract: 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: GrantFiled: November 2, 2011Date of Patent: September 27, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Yosang Yoon, Slawomir Rubinsztajn, Joel Matthew Caraher, Gary Stephen Balch, Prameela Susarla
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Patent number: 9206392Abstract: 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: GrantFiled: December 27, 2012Date of Patent: December 8, 2015Assignee: Technion Research & Development Foundation LimitedInventors: Michal Amit, Joseph Itskovitz-Eldor
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Patent number: 9050315Abstract: 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: GrantFiled: April 11, 2011Date of Patent: June 9, 2015Assignee: The Trustees of the University of PennsylvaniaInventors: Peter S. Klein, Jian Huang
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Publication number: 20150147806Abstract: 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: ApplicationFiled: November 20, 2014Publication date: May 28, 2015Applicant: SNU R&DB FOUNDATIONInventors: Kookheon CHAR, Jwa-Min NAM, Yeongseon JANG, Hyojin LEE
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Patent number: 9029139Abstract: 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: GrantFiled: March 24, 2010Date of Patent: May 12, 2015Assignee: Loyola University of ChicagoInventors: Makio Iwashima, Robert Love, Rudolf Karl Braun, Perianna Sethupathi, Katherine Lathrop Knight
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Patent number: 9028840Abstract: 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: GrantFiled: November 27, 2008Date of Patent: May 12, 2015Assignees: 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
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Publication number: 20150125880Abstract: 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: ApplicationFiled: April 29, 2013Publication date: May 7, 2015Inventor: Jean-Marie Saint-Remy
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Publication number: 20150125540Abstract: 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: ApplicationFiled: January 5, 2015Publication date: May 7, 2015Inventors: Jeffrey M. Karp, Debanjan Sarkar, Praveen Kumar Vemula
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Publication number: 20150104431Abstract: 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: ApplicationFiled: September 23, 2014Publication date: April 16, 2015Inventors: Mark F. Pittenger, Stephen L. Gordon, Alastair Morgan Mackay
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Publication number: 20150104864Abstract: 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: ApplicationFiled: March 24, 2014Publication date: April 16, 2015Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATIONInventors: Sunghoi Hong, Seung-Ick Oh, Hang-Soo Park
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Patent number: 9005966Abstract: Provided are methods and compositions useful for producing and propagating stem cells from fibroblasts.Type: GrantFiled: November 19, 2008Date of Patent: April 14, 2015Assignee: The Regents of the University of CaliforniaInventors: William E. Lowry, Kathrin Plath
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Patent number: 9006148Abstract: 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: GrantFiled: September 13, 2012Date of Patent: April 14, 2015Inventor: Harvey Zar
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Patent number: 9005965Abstract: 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: GrantFiled: January 13, 2011Date of Patent: April 14, 2015Assignee: Hadasit Medical Research Services & Development LimitedInventors: Etti Ben Shushan, Shelly Tannenbaum, Pavel Itsykson, Eyal Banin, Benjamin Reubinoff
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Patent number: 9005885Abstract: 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: GrantFiled: June 4, 2010Date of Patent: April 14, 2015Assignee: The General Hospital CorporationInventor: Harald C. Ott
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Publication number: 20150099267Abstract: 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: ApplicationFiled: September 26, 2014Publication date: April 9, 2015Inventors: Richard Schlegel, Xuefeng Liu
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Patent number: 8999167Abstract: 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: GrantFiled: August 4, 2004Date of Patent: April 7, 2015Assignee: Asahi Kasei Medical Co., Ltd.Inventors: Yasuhiro Nakano, Naoko Ishihara
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Publication number: 20150086518Abstract: 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: ApplicationFiled: December 3, 2014Publication date: March 26, 2015Inventors: Harald C. Ott, Claudius Conrad
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Publication number: 20150079584Abstract: 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: ApplicationFiled: March 17, 2014Publication date: March 19, 2015Inventors: Matthew R. Gevaert, David E. Orr, Hal Crosswell
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Patent number: 8980628Abstract: 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: GrantFiled: March 15, 2007Date of Patent: March 17, 2015Assignee: Aderans Research Institute, Inc.Inventors: Jizeng Qiao, Jeffrey Keeler Teumer, Erica Jean Philips
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Publication number: 20150072422Abstract: 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: ApplicationFiled: August 27, 2014Publication date: March 12, 2015Applicant: ANGIOBLAST SYSTEMS, INC.Inventors: Stan Gronthos, Andrew Christopher William Zannettino
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Patent number: 8956865Abstract: 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: GrantFiled: August 11, 2011Date of Patent: February 17, 2015Assignees: Institut National de la Sante et de la Recherche Medicale (INSERM), Universite Montpellier 1, Centre Hospitalier Universitaire de MontpellierInventors: Samir Hamamah, Said Assou
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Patent number: 8956860Abstract: 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 0.5×106 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 1.25×105 cells/cm2.Type: GrantFiled: May 18, 2012Date of Patent: February 17, 2015Inventors: Juan F. Vera, Cliona M. Rooney, Ann M. Leen, John R. Wilson
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Patent number: 8956870Abstract: 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: GrantFiled: January 17, 2013Date of Patent: February 17, 2015Assignee: Biogencell, Ltd.Inventor: Yael Porat
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Patent number: 8956868Abstract: 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: GrantFiled: December 27, 2011Date of Patent: February 17, 2015Assignee: LSIP, LLCInventors: Tetsuro Takamatsu, Ping Dai
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Patent number: 8945922Abstract: 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: GrantFiled: September 8, 2009Date of Patent: February 3, 2015Assignee: RikenInventors: Hiroshi Watarai, Haruhiko Koseki, Masaru Taniguchi, Shin-ichiro Fujii
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Patent number: 8945920Abstract: 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: GrantFiled: January 26, 2007Date of Patent: February 3, 2015Assignee: Centre National de la Recherche ScientifiqueInventors: Louis Casteilla, Valérie Planat-Benard, Luc Penicaud, Carine Chanut
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Patent number: 8936650Abstract: 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: GrantFiled: March 22, 2012Date of Patent: January 20, 2015Assignee: The Regents of the University of CaliforniaInventors: Seyedhamed Alavi, Arash Kheradvar
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Patent number: 8927282Abstract: 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: GrantFiled: June 15, 2006Date of Patent: January 6, 2015Assignee: Capsant Neurotechnologies S.A.Inventor: Luc Stoppini
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Patent number: 8927273Abstract: 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: GrantFiled: August 19, 2004Date of Patent: January 6, 2015Assignee: Takara Bio Inc.Inventors: Mitsuko Ideno, Nobuko Muraki, Kinuko Ogawa, Masayuki Kishimoto, Tatsuji Enoki, Hiroaki Sagawa, Ikunoshin Kato
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Publication number: 20150004145Abstract: 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: ApplicationFiled: January 30, 2013Publication date: January 1, 2015Inventors: Ihor R. Lemischka, Kateri Moore, Carlos Filipe Pereira
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Publication number: 20140377232Abstract: 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: ApplicationFiled: January 31, 2013Publication date: December 25, 2014Applicant: WAKE FOREST UNIVERSITY HEALTH SCIENCESInventor: Khalil Bitar