Patents Examined by Kara D Johnson
  • Patent number: 11591571
    Abstract: The invention relates to a method for detecting residual, undifferentiated pluripotent stem cells (PSCs) in a culture of cells differentiated from PSCs, the method comprising: culturing the cells on a substrate coated with laminin-521 and E-cadherin in a medium comprising a ROCK inhibitor; quantitating in the cultured cells expression of a marker of residual, undifferentiated PSCs; and comparing the marker expression in the cultured cells with the marker expression in a reference culture of cells comprising a known proportion of PSCs, wherein lower marker expression in the culture of cells than marker expression in the reference culture of cells indicates absence of residual, undifferentiated PSCs in the cultured cells or presence of residual, undifferentiated PSCs in the cultured cells at a proportion lower than the known proportion of PSCs in the reference culture of cells.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: February 28, 2023
    Assignee: CYNATA THERAPEUTICS LIMITED
    Inventors: Igor Slukvin, Derek Hei, Diana Drier
  • Patent number: 11566233
    Abstract: The invention relates to a three-dimensional in vitro alveolar lung model comprising essentially the four cells types as follows: alveolar type II epithelial cells able to secrete (lung laying) surfactant, endothelial cells which forms the inner lining of capillaries providing a permeable barrier, dendritic-like cells, such as non-differentiated THP-1, linking innate and adaptive immunity and macrophage-like cells, able to participate to defense mechanisms by ingesting foreign materials by phagocytosis. The invention also relates to a process for preparing said model, and its use for assessing the irritation potential or toxicity of inhalable products such as particles or molecules on the alveolar barrier of lungs, and also for determining and/or predicting the sensitizing effects of inhalable products such as particles or molecules on the alveolar barrier of lungs.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: January 31, 2023
    Assignee: LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Aline Chary, Arno Gutleb, Tommaso Serchi, Brunhilde Blomeke
  • Patent number: 11566229
    Abstract: Methods for derivation, culture, and maturation of small hepatic progenitor cells are described.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: January 31, 2023
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: James A. Thomson, Srikumar Sengupta
  • Patent number: 11566232
    Abstract: The purpose of the invention is to provide novel cell culture substrates, cell culture vessels, and methods for cell culture. A cell culture substrate having a planar mesh structure, the substrate being coated with a polymer, is provided. Cells are cultured in a cell culture vessel having this substrate.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: January 31, 2023
    Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Maiko Tanabe, Shizu Takeda, Masahiro Okanojo, Hiroko Hanzawa, Masao Washizu, Kennedy Omondi Okeyo
  • Patent number: 11542475
    Abstract: The present invention relates generally to a three-dimensional cell and tissue culture system for the female reproductive tract. In particular provided herein the system includes individual female reproductive cultures in a dynamic microfluidic setting or integrated using a microfluidic microphysiologic system. In some embodiments, the present invention provides ex-vivo female reproductive tract integration in a three dimensional (3D) microphysiologic system.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: January 3, 2023
    Assignees: The Board of Trustees of the University of Illinois, Northwestern University
    Inventors: Teresa K. Woodruff, Ji-Yong Julie Kim, Joanna E. Burdette, Spiro Getsios, Sevim Yildiz Arslan, Shuo Xiao, Jie Zhu
  • Patent number: 11534529
    Abstract: Methods of producing and methods of treatment using a nipple areolar complex extracellular matrix. A method for processing tissue comprises harvesting a human nipple areolar complex tissue, treating the tissue with a stabilizing medium, wherein the medium stabilizes the tissue during transport, decellularizing the tissue, and sterilizing the tissue to form a human nipple areolar complex extracellular matrix scaffold (ECMS). A method of treating an individual with a need for a nipple reconstruction comprises forming an ECMS and applying the ECMS to the individual for nipple areolar regeneration.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: December 27, 2022
    Assignee: NOVOTHELIUM, LLC
    Inventors: Bianca G. Cerqueira, Lauren E. Cornell
  • Patent number: 11530387
    Abstract: The present invention provides a method for producing a unilocular adipocyte including inducing differentiation into unilocular adipocytes of mesenchymal cells having differentiation potency into adipocytes by culturing the mesenchymal cells in suspension in a liquid medium composition capable of culturing cells or tissues in suspension, wherein the liquid medium composition contains a polymer compound having an anionic functional group that binds via a divalent metal cation to form a structure capable of suspending cells or tissues, and the method wherein the polymer compound is polysaccharide, preferably polysaccharide containing a glucuronic acid moiety, more preferably deacylated gellan gum, diutan gum or xanthan gum or a salt thereof.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: December 20, 2022
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventor: Tatsuro Kanaki
  • Patent number: 11505784
    Abstract: The present invention provides a basal cell culture medium and a feed medium with novel amino acid ratios and/or iron choline citrate as iron carrier that result in improved performance of mammalian cell culture processes, such as CHO cultivation and protein production processes, in particular in increased product titer (e.g. of monoclonal antibodies). Also provided are methods for culturing mammalian cells and producing a protein of interest using said basal cell culture medium and optionally feed medium. The invention also provides for a medium platform that comprises (i) the basal cell culture medium and (ii) the feed medium.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 22, 2022
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Christoph Clemens, Jochen Schaub, Marie Link, Peter Schorn, Torsten Schulz
  • Patent number: 11492598
    Abstract: The present disclosure provides a substrate for cell culture. Systems comprising the substrate, and methods for using and manufacturing the substrate are also disclosed herein.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: November 8, 2022
    Assignee: ACADEMIA SINICA
    Inventor: Ying-Chih Chang
  • Patent number: 11485955
    Abstract: The present invention discloses formulation of a serum-free medium used for human pluripotent stem cells, which comprises the following raw materials: inorganic salt components, organic components, amino acids and amino acid salts, energy substances and metabolic intermediates, vitamins and antioxidants, proteins and polypeptides, trace elements and chromogenic substances; while the culture process comprises the following steps: selecting a basic formulation, performing combination screening, identifying and evaluating results, and testing a new formulation of culture; and proportioning according to the following methods: adding aforesaid raw materials into 950 ml of water for injection, stirring gently until dissolved, and finally adding 2.438 g of sodium bicarbonate, and stirring gently until dissolved, and then adding 1 liter of water for injection, adjusting the pH to the desired value with 1 mol/L sodium hydroxide solution or 1 mol/L hydrochloric acid solution, finally filtering sterilized with 0.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: November 1, 2022
    Inventor: Tao Yang
  • Patent number: 11466256
    Abstract: Provided herein are methods of producing ? cells and precursors thereof utilizing a Wnt signaling inhibitor or PKC activator, or both. Also provided herein are in vitro cultures comprising said cells, methods of treating a subject with a disease characterized by high blood sugar levels over a prolonged period of time by administering said cells, and devices for encapsulating said cells.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: October 11, 2022
    Assignee: VERTEX PHARMACEUTICALS INCORPORATED
    Inventors: Felicia J. Pagliuca, George Harb, Lillian Ye
  • Patent number: 11453863
    Abstract: The invention relates to a method of preparing pancreatic islet-like cell structures characterized by a unique combination of morphological and functional features which make them particularly suitable for use in both clinical and drug screening application, as well as to the pancreatic islet-like cell structures obtained therefrom.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: September 27, 2022
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Ciro Tetta, Giovanni Camussi, Sara Giunti, Victor Manuel Navarro Tableros
  • Patent number: 11447751
    Abstract: A method of circulating tumor cells isolation, using an isolating cultural system of circulating tumor cells, comprises the following steps: (1) providing a sample; (2) adding a cell culture medium to the isolating cultural system of circulating tumor cells; (3) adding the sample to the isolating cultural system of circulating tumor cells to cultivate; and (4) collecting the suspended circulating tumor cells in the cell culture medium; wherein the isolating cultural system of circulating tumor cells comprises a container including a cell adhesion portion, and cellulose coated on the cell adhesion portion.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: September 20, 2022
    Assignee: NATIONAL TAIWAN UNIVERSITY
    Inventors: Tai-Horng Young, Wan-Chen Huang, Hao-Ying Hsieh, Shyh-Chyi Lo, Ke-Cheng Chen, Jin-Shing Chen, Yin-Tzu Chen
  • Patent number: 11441119
    Abstract: Disclosed herein is a cell culture media containing L-glutamine from a set of N-acylated dipeptides Acyl-X-Q, and L-glutamine from a set of other glutamine-sources Qsource in a defined molar ratio R=n(Acyl-X-Q)/n(Qsource), wherein the variables X, Q, Acyl, R, n(Acyl-X-Q) and n(Qsource) are defined in the general disclosure. Processes of using the cell culture media are also described herein.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: September 13, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Guenter Knaup, Friedhelm Merz
  • Patent number: 11413358
    Abstract: The invention encompasses a rapid and safe preparation method of sperm nuclei, improved sperm nuclei and a method of using the improved sperm nuclei to calibrate a flow cytometer with higher accuracy.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: August 16, 2022
    Assignee: Inguran, LLC
    Inventors: Kenneth Michael Evans, Thomas B. Gilligan
  • Patent number: 11414648
    Abstract: The fallopian tube epithelium (FTE) has been recognized as a site of origin of high-grade serous ovarian cancer (HGSC). However, absence of relevant in vitro human models that can recapitulate tissue-specific architecture has hindered understanding of FTE transformation and initiation of HGSC. Here, induced pluripotent stem cells (iPSCs) were used to establish a novel 3-dimensional (3D) human FTE organoid in vitro model containing the relevant cell types of the human fallopian tube as well as a luminal architecture that closely reflects the organization of fallopian tissues in vivo. Modulation of Wnt and nodal/activin signaling pathways provided iPSC differentiation into Müllerian cells and subsequent use of pro-Müllerian growth factors promoted FTE precursors. The expression of Müllerian markers verified correct cellular differentiation. An innovative 3D growth platform, which enabled the FTE organoid to self-organize into a convoluted luminal structure, permitted final differentiation to a FTE lineage.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 16, 2022
    Assignee: Cedars-Sinai Medical Center
    Inventors: Clive N. Svendsen, Beth Y. Karlan, Nur Yucer, Marie Holzapfel, Tilly Jenkins Vogel
  • Patent number: 11414476
    Abstract: The present invention relates to a method for preparing a fusion protein having an IgG Fc domain and, specifically, to a method for preparing a fusion protein having an IgG Fc domain, the method additionally comprising a step of culturing cells, which produce the fusion protein, at a decreased culture temperature, thereby increasing cell growth and cell viability so as to increase fusion protein productivity and inhibiting aggregate generation so as to improve quality and production yield.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: August 16, 2022
    Assignee: ALTEOGEN, INC.
    Inventors: Soon Jae Park, Hye Shin Chung, Sun Ah You, Jeong Soo Cho
  • Patent number: 11413372
    Abstract: Compositions comprising unseparated amnion/chorion derived from the placenta and methods of preparing and using those compositions are provided. Washing or preservation of placental tissue according to the methods of the disclosure may allow for one or more benefits such as more efficient removal of blood remnants, retention of wound healing and tissue regeneration components, better handling characteristics, increased absorption potential, or improved healing capacity. The present invention also includes methods of healing a wound of the skin, eye, nerve, tendon, or dura comprising applying the compositions of the invention to the wound.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: August 16, 2022
    Assignee: StimLabs LLC
    Inventors: John Daniel, Sarah Griffiths, Richard Berg
  • Patent number: 11407978
    Abstract: The present invention discloses an extracellular matrix comprising a modified polysaccharide consisting of repeating disaccharide units whereby in at least 11% of the disaccharide units one primary alcohol group is oxidized into a carboxylic acid.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: August 9, 2022
    Assignee: Albert-Ludwigs-Universität Freiburg
    Inventors: V. Prasad Shastri, Aurelien Forget
  • Patent number: 11407980
    Abstract: A cell culture medium for culturing organoid containing at least two types of components selected from the group consisting of insulin-like growth factor 1 (IGF1), fibroblast growth factor 2 (FGF2) and epiregulin (EREG), and at least one type of component among the following components i) to iii): i) Wnt agonist, ii) bone morphogenetic protein (BMP) inhibitor, and iii) transforming growth factor-? (TGF-?) inhibitor.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: August 9, 2022
    Assignee: KEIO UNIVERSITY
    Inventors: Toshiro Sato, Mami Matano