Contains A Growth Factor Or Growth Regulator Patents (Class 435/405)
  • Publication number: 20130217120
    Abstract: Disclosed are placenta-derived cell-conditioned culture media for stem cells. An animal-free, feeder-free method using the media is also provided for culturing stem cells. The media can prevent the stem cells from being contaminated with xenogeneic proteins or cells, and maintain human embryonic stem cells in an undifferentiated state for a long period of time in vitro with an economic benefit.
    Type: Application
    Filed: April 8, 2013
    Publication date: August 22, 2013
    Applicant: Korea University Research and Business Foundation
    Inventor: Korea University Research and Business Foundation
  • Publication number: 20130217129
    Abstract: Novel products comprising conditioned cell culture medium compositions and methods of use are described. The conditioned cell medium compositions of the invention may be comprised of any known defined or undefined medium and may be conditioned using any eukaryotic cell type. Once the cell medium of the invention is conditioned, it may be used in any state. Physical embodiments of the conditioned medium include, but are not limited to, liquid or solid, frozen, lyophilized or dried into a powder. Additionally, the medium is formulated with a pharmaceutically acceptable carrier as a vehicle for internal administration, applied directly to a food item or product, or formulated with a salve or ointment for topical applications. Also, the medium may be further processed to concentrate or reduce one or more factors or components contained within the medium.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 22, 2013
    Applicant: ALLERGAN, INC.
    Inventor: Allergan, Inc.
  • Publication number: 20130210725
    Abstract: Novel products comprising conditioned cell culture medium compositions and methods of use are described. The conditioned cell medium compositions of the invention may be comprised of any known defined or undefined medium and may be conditioned using any eukaryotic cell type. Once the cell medium of the invention is conditioned, it may be used in any state. Physical embodiments of the conditioned medium include, but are not limited to, liquid or solid, frozen, lyophilized or dried into a powder. Additionally, the medium is formulated with a pharmaceutically acceptable carrier as a vehicle for internal administration, applied directly to a food item or product, or formulated with a salve or ointment for topical applications. Also, the medium may be further processed to concentrate or reduce one or more factors or components contained within the medium.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 15, 2013
    Applicant: Allergan, Inc.
    Inventor: Allergan, Inc.
  • Publication number: 20130211186
    Abstract: The present invention relates to the production and culture of undifferentiated spermatogonial stem cells that can be maintained long term and are feeder free. The resultant feeder-free populations can be used in any of a number of protocols including the generation of progeny bulls. The present invention includes novel methods required for the successful enrichment of bovine spermatogonial stem cells, novel cell lines and other components used for the same, as well as the resultant stem cell compositions.
    Type: Application
    Filed: February 11, 2013
    Publication date: August 15, 2013
    Applicant: WASHINGTON STATE UNIVERSITY RESEARCH FOUNDATION
    Inventor: WASHINGTON STATE UNIVERSITY RESEARCH FOUNDATION
  • Publication number: 20130203169
    Abstract: Novel products comprising conditioned cell culture medium compositions and methods of use are described. The conditioned cell medium compositions of the invention may be comprised of any known defined or undefined medium and may be conditioned using any eukaryotic cell type. Once the cell medium of the invention is conditioned, it may be used in any state. Physical embodiments of the conditioned medium include, but are not limited to, liquid or solid, frozen, lyophilized or dried into a powder. Additionally, the medium is formulated with a pharmaceutically acceptable carrier as a vehicle for internal administration, applied directly to a food item or product, or formulated with a salve or ointment for topical applications. Also, the medium may be further processed to concentrate or reduce one or more factors or components contained within the medium.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 8, 2013
    Applicant: ALLERGAN, INC.
    Inventor: ALLERGAN, INC.
  • Publication number: 20130195959
    Abstract: The present disclosure is drawn to compositions and methods of making and using lyophilized platelet lysates. Specifically, a method of preparing a composition suitable for therapeutic use or as a culture medium can comprise steps of concentrating platelets from a platelet source to form a platelet rich portion of the platelet source, and lysing the platelets in the platelet rich portion to form a plurality of lysates. An additional step includes lyophilizing the lysates to form lyophilized platelet lysates in a composition with released concentrations of available growth factors, cytokines, and chemokines. In one example, at 30%, by platelet count, of platelets from a platelet source can be lysed using this process.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Inventor: Amit Patel
  • Publication number: 20130189327
    Abstract: The invention relates to a liver organoid, uses thereof and method for obtaining them.
    Type: Application
    Filed: July 29, 2011
    Publication date: July 25, 2013
    Applicant: KONINKIJIKE NEDERLANDSE AKADEMIE VAN WETENSCHAPPEN
    Inventors: Meritxell Huch Ortega, Johannes Carolus Clevers
  • Patent number: 8486700
    Abstract: The invention relates to methods and compositions for the differentiation of stromal cells from adipose tissue into hematopoietic supporting stromal cells and myocytes of both the skeletal and smooth muscle type. The cells produced by the methods are useful in providing a source of fully differentiated and functional cells for research, transplantation and development of tissue engineering products for the treatment of human diseases and traumatic tissue injury repair.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: July 16, 2013
    Assignee: Artecel Sciences Inc.
    Inventors: Jeffrey Martin Gimble, Yuan-Di Chang Halvorsen, William O. Wilkison
  • Publication number: 20130177537
    Abstract: Disclosed are methods for expanding stem cells that use a unique combination of environmental factors and cell culture conditions to produce stem cells having enhanced proliferation and differentiation characteristics. Also disclosed are methods for enhancing the engraftment and/or migratory potential of stem cells for therapeutic uses. Stem cells having unique proliferation, differentiation, migratory and engraftment characteristics are also disclosed.
    Type: Application
    Filed: March 6, 2013
    Publication date: July 11, 2013
    Applicant: STEMEDICA CELL TECHNOLOGIES, INC.
    Inventor: Stemedica Cell Technologies, Inc.
  • Patent number: 8481308
    Abstract: Methods for culturing undifferentiated mammalian cells, such as stem and progenitor cells, are provided. The methods involve incubating the cell in the presence of a sustained release composition containing at least one growth factor, wherein the sustained release composition continuously releases the growth factor(s), and wherein the presence of the sustained level of growth factor maintains the cell in an undifferentiated state.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: July 9, 2013
    Assignee: Regenerative Research Foundation
    Inventors: Jeffrey Stern, Sally Temple Stern
  • Publication number: 20130171110
    Abstract: Compositions and methods that employ various combinations of such factors as retinoic acid signaling inhibitors, antioxidants, BMP4, VEGF, prostaglandin E2 pathway stimulants, TPO, SCF, FLT-3, EPO, TGF?1, p38 MAPK inhibitors, beta adrenergic receptor agonists, cell cycle inhibitors, RXR agonists, Cripto, and chromatin remodelers to drive differentiation of pluripotent stem cells towards primitive blood cells. Uses of such primitive blood cells are provided.
    Type: Application
    Filed: December 5, 2012
    Publication date: July 4, 2013
    Applicant: DeWitt Ross & Stevens S.C.
    Inventor: DeWitt Ross & Stevens S.C.
  • Patent number: 8475788
    Abstract: The invention is directed to methods of promoting the healing of spinal cord injury. The invention is further directed to methods of minimizing the extent of scarring following spinal cord injury. Such methods utilize novel compositions, including but not limited to extraembryonic cytokine secreting cells (herein referred to as ECS cells), including, but not limited to, amnion-derived multipotent progenitor cells (herein referred to as AMP cells) and conditioned media derived therefrom (herein referred to as amnion-derived cellular cytokine solution or ACCS), each alone or in combination with each other and/or other agents.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: July 2, 2013
    Assignee: Stemnion, Inc.
    Inventors: George L. Sing, Diana L. Clarke, Vivienne S. Marshall
  • Patent number: 8476070
    Abstract: Well-defined, xeno-free culture media which comprise a TGF-beta isoform or the chimera formed between IL6 and the soluble IL6 receptor (IL6RIL6), which are capable of maintaining stem cells, and particularly, human embryonic stem cells, in an undifferentiated state are provided. Also provided are cell cultures comprising the culture media and the stem cells and methods of expanding and deriving embryonic stem cells in such well-defined, xeno-free culture media. In addition, the present invention provides methods of differentiating ESCs or EBs formed therefrom for the generation of lineage specific cells.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: July 2, 2013
    Assignee: Technion Research & Development Foundation Limited
    Inventors: Michal Amit, Joseph Itskovitz-Eldor
  • Patent number: 8476071
    Abstract: The present invention relates to methods for expanding a stem cell population. More particularly, the invention relates, inter alia, to methods and compositions for expanding a stem cell population, particularly a hematopoietic stem cell population.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: July 2, 2013
    Assignee: Stowers Institute for Medical Research
    Inventors: John M. Perry, Linheng Li, Justin C. Grindley
  • Publication number: 20130164849
    Abstract: The present invention relates to a medium for culturing mesenchymal stem cells, and more particularly to a medium composition for culturing mesenchymal stem cells, which contains basal medium, L-ascorbic acid 2-phosphate, fetal bovine serum, basic fibroblast growth factor (b-FGF), non-essential amino acids (NEAAs), insulin, N-acetyl-L-cysteine, calcium chloride, and hydrocortisone, and a method of culturing mesenchymal stem cells using the same. According to the present invention, a number of mesenchymal stem cells required for stem cell therapy can be obtained in a short time, and the ability of mesenchymal stem cells to differentiate is improved so that they are useful for stem cell therapy.
    Type: Application
    Filed: July 18, 2011
    Publication date: June 27, 2013
    Applicant: RNL Bio Co., Ltd.
    Inventors: Jeong Chan Ra, Sung Keun Kang, Ju Yeon Seo, Hyoeun Kim
  • Patent number: 8460929
    Abstract: Provided are methods and compositions for constructing stable mammalian embryonic epithelial tissues and organs as well as constructing kidney tissue, and treating renal failure. Disclosed are methods of using an active epithelial growth factor having the capability of effectuating induction of growth and morphogenesis is cells.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: June 11, 2013
    Assignee: The Regents of the University of California
    Inventors: Sanjay Kumar Nigam, Eran Rosines
  • Publication number: 20130130373
    Abstract: The present disclosure relates, in general to a kit comprising a serum replacement and one or more labile factors, such as growth factors, packaged separately in the kit. It is contemplated that the kit provides advantages to improve cell growth in culture compared to cells cultured not using the kit described herein.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 23, 2013
    Applicant: ESSENTIAL PHARMACEUTICALS, LLC
    Inventor: Essential Pharmaceuticals, LLC
  • Patent number: 8431399
    Abstract: The present invention provides a method for restoring native chondrocyte phenotype and functions of, and/or increasing type II collagen as well as aggrecan mRNA expression levels and GAG accumulation level in dedifferentiated chondrocytes which have been subcultured and expanded in vitro, which comprising culturing the said dedifferentiated chondrocytes in vitro with a medium comprising type II collagen, or its biologically active peptide fragment(s) or analogs with or without growth factor(s), wherein the type II collagen or its biologically active peptide fragment(s) or analogs are effective to restore chondrocyte phenotype and functions of, and/or to increase type II collagen and aggrecan expression levels and GAG accumulation level in the said dedifferentiated chondrocytes.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: April 30, 2013
    Assignee: Taipei Medical University
    Inventors: Yu-Hui Tsai, Li-Hsuan Chiu, Chin-Chean Wong, Wen-Fu Lai, Shih-Ching Chen
  • Patent number: 8426203
    Abstract: Previous methods for culturing primate pluripotent stem cells have required either fibroblast feeder cells or a medium which was exposed to fibroblast feeder cells to maintain the stem cells in an undifferentiated state. It has now been found that high levels of fibroblast growth factor in a medium together with at least one of gamma aminobutyric acid, pipecolic acid, and lithium, enables pluripotent stem cells to remain undifferentiated indefinitely through multiple passages, even without feeder cells or conditioned medium. Without beta-mercaptoethanol, the medium improves cloning efficiency. Also, a matrix of human proteins can be used to culture the undifferentiated cells without exposing the cells to animal products. Further disclosed are new primate pluripotent cell lines made using the defined culture conditions, including the medium and the matrix. Such new cell lines will have never been exposed to animal cells, animal products, feeder cells or conditioned medium.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: April 23, 2013
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: James A. Thomson, Tenneille Ludwig
  • Patent number: 8415155
    Abstract: Methods and composition for the production of cardiomyocytes from differentiation of pluripotent stem cells are provided. For example, in certain aspects methods including differentiating pluripotent stem cells in a large volume of suspension culture in the presence of ROCK inhibitors are described. In further aspects, methods for differentiation of stem cells into cardiomyocytes that overcome variability between different stem cell clones and different batch of culture medium are provided.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: April 9, 2013
    Assignee: Cellular Dynamics International, Inc.
    Inventors: Casey Stankewicz, Matt Riley, Nathaniel Beardsley, Wen Bo Wang, Peter Fuhrken, Steven Kattman
  • Patent number: 8415158
    Abstract: The present invention relates to cell culture methods and compositions that are essentially serum-free and comprise a basal salt nutrient solution and an ErbB3 ligand.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: April 9, 2013
    Assignee: ViaCyte, Inc.
    Inventors: Allan J Robins, Thomas C Schulz
  • Patent number: 8404482
    Abstract: The present invention is directed to an in vitro method for promoting differentiation and proliferation of human T helper lymphocytes that express IL17 (Th-IL17+ cells). The instant method may be used to generate a population of human T helper lymphocytes that express IL17 (Th-IL17+ cells) in vitro. Methods for screening to identify agents capable of modulating Th-IL17+ cell differentiation are also encompassed by the present invention. Isolated, pure populations of homogeneous Th-IL17+ cells that do not express cellular markers characteristic of Th1, Th2, or Treg cells are also encompassed herein.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: March 26, 2013
    Assignee: New York University
    Inventors: Nicolas Manel, Dan R. Littman
  • Publication number: 20130040390
    Abstract: The present invention provides a chemically defined culture system, by which induced pluripotent stem (iPS) cells are obtained with high efficiency. The culture medium supplement of the present invention includes vitamin C and a glycogen synthase kinase-3 inhibitor; another culture medium supplement of the present invention further includes, in addition to vitamin C and the glycogen synthase kinase-3 inhibitor, vitamin B12, insulin, a receptor tyrosine kinase, and an anti-oxidant; and the culture medium supplement of the present invention may further be a mixture of the above two culture medium supplements with a serum replacement cell growth promoter. The present invention further provides a complete culture medium for iPS cells, which is formed by one or more of a basal culture medium, serum, and a serum replacement supplement, and the above culture medium supplements, or formed only by the above culture medium supplements and a basal culture medium.
    Type: Application
    Filed: July 29, 2010
    Publication date: February 14, 2013
    Applicant: GUANGZHOU INSTITUTES OF BIOMEDICINE AND HEALTH, CHINESE ACADEMY OF SCIENCE
    Inventors: Duanqing Pei, Jiekai Chen, Jing Liu
  • Patent number: 8367406
    Abstract: Pluripotent cells that are immunopositive for both the neural progenitor marker nestin and a pluripotent cell marker are provided. The cells exhibit rapid doubling times and can be maintained in vitro for extended periods. Also provided are cell cultures containing the pluripotent cells, a method of transplanting human pluripotent cells to a host, and a method of reducing seizure activity in a subject. These pluripotent cells, when transplanted into the ventricle of a host animal, migrate to the site of damage and adopt a suitably corrective phenotype, resulting in both structural and functional restoration.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: February 5, 2013
    Assignee: Celavie Biosciences, LLC
    Inventor: Oleg V. Kopyov
  • Publication number: 20130029414
    Abstract: Albumin-supplemented and xenogeneic product-free cell culture media, cell culture media supplements, and cell culture media kits for the support of primary culture of normal non-hematopoietic cells of mesodermal origin suitable for both research and clinical applications.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Inventor: David K. Moscatello
  • Publication number: 20130017604
    Abstract: Methods and compositions for directing adipose-derived stromal cells cultivated in vitro to differentiate into cells of the chondrocyte lineage are disclosed. The invention further provides a variety of chondroinductive agents which can be used singly or in combination with other nutrient components to induce chondrogenesis in adipose-derived stromal cells either in cultivating monolayers or in a biocompatible lattice or matrix in a three-dimensional configuration. Use of the differentiated chondrocytes for the therapeutic treatment of a number of human conditions and diseases including repair of cartilage in vivo is disclosed.
    Type: Application
    Filed: September 30, 2011
    Publication date: January 17, 2013
    Applicant: ARTECEL SCIENCES INC.
    Inventors: Yuan-Di C. Halvorsen, William O. Wilkison, Jeffrey Martin Gimble
  • Publication number: 20120329152
    Abstract: The present invention relates to methods of induction and isolation of progenitor cells from stem cell cultures, specifically liver progenitor cells from human embryonic stem cell cultures. In one embodiment, the present invention provides a method of inducing hepatocyte-like progenitor cells by placing a quantity of human embryonic stem cells in a medium supplemented with an inhibitor of the MAPK/MEK/ERK signaling pathway, FGFR, GSK3 and/or BMP.
    Type: Application
    Filed: August 31, 2012
    Publication date: December 27, 2012
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Martin F. Pera, Tracy Zinberg, Kouichi Hasegawa
  • Patent number: 8338175
    Abstract: The present disclosure describes a tissue system with conjunctival cells, including conjunctival stem cells. The conjunctival tissue system is derived from isolated tissue comprising conjunctival cells, and is suitable for restoring ocular surface impairments, particularly those that result from damaged or diseased conjunctiva. The tissue system is generated using a simple single medium culture scheme, and a support material, such as human amniotic membrane. The conjunctival tissue system generate is suitable for transplantation to treat the ocular surface of an eye of a subject that is damaged or diseased.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: December 25, 2012
    Assignee: Reliance Life Sciences Pvt. Ltd.
    Inventors: Kashyap Subhadra Devi, Kishore Reddy, Viraf Vasania
  • Patent number: 8337829
    Abstract: The subject invention pertains to tumor cell lines useful for increasing the proliferation potential of any human or animal cell in culture, thereby providing immortalized or continuous cell lines and cultures. The invention also concerns proliferation factors, and compositions containing the factors, which are capable of increasing the proliferation potential of any human or other animal cell in culture. The subject invention further pertains to a method for proliferating cells in culture by contacting cells with the proliferation factors. The proliferated cells can range in plasticity and can include, for example, blast cells, fertilized ova, non-fertilized gametes, embryonic stem cells, adult stem cells, precursor or progenitor cells, and highly specialized cells. Optionally, the cells can be induced to cease proliferation.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: December 25, 2012
    Assignees: University of South Florida, University of Chile
    Inventors: Thomas B. Freeman, Pablo Caviedes, Raul Caviedes
  • Patent number: 8323973
    Abstract: A cell culture substrate having at least one area for culturing a cell on a substrate, characterized in that the culturing area comprises an area releasably holding a biologically active substance having a biological activity to the cell and an area for immobilizing a biologically active substance having a biological activity to the cell.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: December 4, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Qsamu Kanome, Kohei Watanabe, Takeshi Miyazaki, Tomoyo Fujiyama, Ryoichi Matsuda
  • Publication number: 20120264190
    Abstract: Compositions comprising decellularized and delipidized extracellular matrix derived from adipose or loose connective tissue, and therapeutic uses thereof. Methods for treating, repairing or regenerating defective, diseased, or damaged adipose or loose connective tissues or organs in a subject, preferably a human, and/or for tissue engineering, filing soft tissue defects, and cosmetic and reconstructive surgery, using a decellularized and delipidized adipose or loose connective tissue extracellular matrix of the invention are provided. Methods of preparing tissue culture surfaces and culturing cells with adsorbed decellularized and delipidized adipose or loose connective tissue extracellular matrix are also provided.
    Type: Application
    Filed: June 6, 2012
    Publication date: October 18, 2012
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Karen L. Christman, D. Adam Young
  • Publication number: 20120264215
    Abstract: Disclosed are placenta-derived cell-conditioned culture media for stem cells. An animal-free, feeder-free method using the media is also provided for culturing stem cells. The media can prevent the stem cells from being contaminated with xenogeneic proteins or cells, and maintain human embryonic stem cells in an undifferentiated state for a long period of time in vitro with an economic benefit.
    Type: Application
    Filed: March 15, 2012
    Publication date: October 18, 2012
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUDATION OF KOREA UNIVERSITY
    Inventors: Byung Soo KIM, Seung-Jin LEE, Yong PARK, Ji Hye JUNG, Ji Hye KIM
  • Patent number: 8278105
    Abstract: The present invention relates to methods of induction and isolation of progenitor cells from stem cell cultures, specifically liver progenitor cells from human embryonic stem cell cultures. In one embodiment, the present invention provides a method of inducing hepatocyte-like progenitor cells by placing a quantity of human embryonic stem cells in a medium supplemented with an inhibitor of the MAPK/MEK/ERK signaling pathway, FGFR, GSK3 and/or BMP.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: October 2, 2012
    Assignee: University of Southern California
    Inventors: Martin F. Pera, Tracy L. Zinberg, Kouichi Hasegawa
  • Publication number: 20120244567
    Abstract: Methods of culturing embryonic stem cells in a format suitable for high-throughput screening (HTS) are provided. In addition compounds that show differential cytotoxic/protective activity on embryonic stem cells (ESCs) and neurological stem cells (NSCs) are provided.
    Type: Application
    Filed: September 3, 2010
    Publication date: September 27, 2012
    Applicant: BUCK INSTITUTE FOR RESEARCH ON AGING
    Inventor: Xianmin Zeng
  • Publication number: 20120245097
    Abstract: Disclosed herein is a synthetic peptide, which has an amino acid sequence that has 20-39 amino acid residues. The synthetic peptide has at least 80% amino acid sequence identity to SEQ ID NO: 1, and includes at least 20 consecutive residues that has at least 90% amino acid sequence identity to residues 11-30 of SEQ ID NO: 1. Also disclosed herein are compositions containing the synthetic peptide and applications thereof. According to various embodiments of the present disclosure, the synthetic peptide is useful in promoting stem cells proliferation or wound healing.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 27, 2012
    Inventors: Yeou-Ping Tsao, Tsung-Chuan Ho
  • Publication number: 20120225814
    Abstract: A medium for growing vascular lineage cells is described. The vascular lineage cell growth medium includes an oligosaccharide-based hydrogel and a growth factor that promotes vascularization by vascular lineage cells.
    Type: Application
    Filed: November 10, 2010
    Publication date: September 6, 2012
    Applicant: The Johns Hopkins University
    Inventors: Donny Hanjaya-Putra, Sharon Gerecht
  • Publication number: 20120225480
    Abstract: Provided are serum-free culture media which comprise basic fibroblast growth factor (bFGF), transforming growth factor beta-3, ascorbic acid, xeno-free serum replacement and a lipid mixture. The media may also comprise an IL6R/IL6 chimera, or leukemia inhibitory factor (LIF); wherein the culture medium is capable of maintaining pluripotent stem cells in an undifferentiated state in the absence of feeder cell support. Also provided are cell cultures comprising pluripotent stem cells such as human embryonic stem cells and induced pluripotent stem (iPS) cells, and methods of using the same for expanding pluripotent stem cells in an undifferentiated state using two-dimensional or three-dimensional culture systems. Methods of expanding iPS cells in a suspension culture devoid of substrate adherence and cell encapsulation are also provided.
    Type: Application
    Filed: November 11, 2010
    Publication date: September 6, 2012
    Applicant: Technion Research & Development Foundatio Ltd.
    Inventors: Michal Amit, Joseph Itskovitz-Eldor
  • Publication number: 20120219535
    Abstract: Provided herein is a method to isolate a cranial neural crest stem cell and novel compositions containing the cell. Also provided are compositions and methods to clonally expand the population and differentiate the cells into various phenotypes. Therapeutic methods for the compositions are further provided.
    Type: Application
    Filed: August 31, 2010
    Publication date: August 30, 2012
    Inventors: Robert E. Maxson, JR., Mamoru Ishii
  • Publication number: 20120220032
    Abstract: The present invention provides a method of determining the optimal composition of a serum-free, eukaryotic cell culture medium supplement, using 2-level factorial design and the steepest ascent method. The invention further provides a method of making a serum-free eukaryotic cell culture medium supplement and the generated thereof. The invention further provides a method of making a serum-free, eukaryotic cell culture medium and the medium generated thereof. The invention further provides a kit containing the medium of the invention. The invention also provides a method of expanding CD34<+> hematopoietic cells and a composition comprising CD34<+> hematopoietic cells in a serum-free, eukaryotic cell culture medium of the invention.
    Type: Application
    Filed: May 10, 2012
    Publication date: August 30, 2012
    Applicant: SINO CELL TECHNOLOGIES INC.
    Inventors: Shiaw-Min Hwang, Chi-Hsien Liu, Chao-Ling Yao, I-Ming Chu, Tzu-Bou Hsieh
  • Patent number: 8252591
    Abstract: The invention provides tissue culture system for primary cells (e.g. normal mammalian primary epithelial progenitors). This system includes: a) a serum-free, chemically defined cell culture media; and, b) methods for isolation and in vitro long-term propagation of primary cells (e.g. primary epithelial cells). Primary cells so isolated and cultured can be kept undifferentiated and proliferate for many weeks (>15 weeks) or population doubling (>35 PD) without senescence, or any detectable genetic alterations. Upon changing media/culture conditions, these cells can be induced to differentiate. The invention also provides methods to transform normal primary cells so cultured into “cancer stem cells.” The genetically defined cancer stem cell tumor model mimics the behavior of the disease closely, e.g., the cells are invasive, hormone responsive and metastatic when injected into mice. The tumor cells express genes that are specific to cancer stem cells identified in patient samples.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: August 28, 2012
    Assignees: Whitehead Institute for Biomedical Research, The Brigham and Women's Hospital
    Inventors: Tan A. Ince, Robert A. Weinberg
  • Publication number: 20120196312
    Abstract: The invention relates to a method for culturing epithelial stem cells, isolated tissue fragments comprising the epithelial stem cells, or adenoma cells, and culturing the cells or fragments in the presence of a Bone Morphogenetic Protein (BMP) inhibitor, a mitogenic growth factor, and a Wnt agonist when culturing epithelial stem cells and isolated tissue fragments. The invention further relates to a cell culture medium comprising a BMP inhibitor, a mitogenic growth factor, and a Wnt agonist, to the use of the culture medium, and to crypt-villus organoids, gastric organoids, pancreatic organoids, liver organoids, colon organoids, Barrett's Esophagus organoids, adenocarcinoma organoids and colon carcinoma organoids that are formed in the culture medium.
    Type: Application
    Filed: July 29, 2011
    Publication date: August 2, 2012
    Inventors: Toshiro Sato, Johannes C. Clevers, Meritxell Huch Ortega
  • Patent number: 8232101
    Abstract: Multiple myeloma (MM) is a clonal B cell malignancy and remains essentially incurable by conventional anti-tumor therapy. Patients with MM have a median survival of only three years. MM is characterized by proliferation and accumulation of mature plasma cells in the bone marrow (BM) leading to bone destruction, BM failure, anemia, and reduced immune function. The identification of MHC Class I, HLA-A2, associated peptides presented on multiple myeloma cells is an important step in developing immunotherapies for MM. Presented here are methods for creating activated T lymphocytes that are cytotoxic to both peptide loaded T2 target cells and multiple myeloma cell lines.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: July 31, 2012
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Zeling Cai, Wei-Xing Shi, Xuejun P. Liu, Jiejun Wu
  • Patent number: 8227246
    Abstract: This invention provides an isolated disc stem cell population, compositions, and methods of obtaining and growing the same. Moreover, this invention provides an isolated discosphere, compositions, and methods of obtaining and growing the same. An artificial disc containing the cells of the present invention is provided together with methods of making the same. This invention also provides a method of treating a subject having a herniated disc utilizing the cells and methods of the invention.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: July 24, 2012
    Assignee: Discgenics
    Inventors: Valery Kukekeov, Christopher Duntsch, Tatyana Igantova
  • Patent number: 8222034
    Abstract: The present invention is of methods of establishing and propagating human embryonic stem cell lines using feeder cells-free, xeno-free culture systems and stem cells which are capable of being maintained in an undifferentiated, pluripotent and proliferative state in culture which is free of xeno contaminants and feeder cells.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: July 17, 2012
    Assignee: Technion Research & Development Foundation Ltd.
    Inventors: Michal Amit, Joseph Itskovitz-Eldor
  • Publication number: 20120178166
    Abstract: Fully defined media that support pluripotent cell viability, proliferation, cloning, and derivation, as well as methods and compositions including these media are described. Methods for deriving iPS cells from adult individuals under defined, xeno-free conditions are also described.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 12, 2012
    Inventors: Guokai Chen, James A. Thomson
  • Publication number: 20120171766
    Abstract: The present invention relates to a medium composition comprising neuropeptide Y, effective for proliferation and maintenance of undifferentiated pluripotent stem cells, and a method for culturing undifferentiated pluripotent stem cells using the same. The present invention improves the culture conditions for undifferentiated pluripotent stem cells, and ultimately, the present invention can be effectively used for the development of large-scale culture systems, thereby acquiring clinically applicable pluripotent stem cells. Further, the present invention relates to a dedifferentiation medium composition comprising neuropeptide Y (NPY), and a method for inducing dedifferentiation (or reprogramming) using the same. The present invention improves the culture conditions for dedifferentiation and contributes to develop technology of producing clinically applicable induced pluripotent stem cells, thereby being used for the development of stem cell therapy.
    Type: Application
    Filed: June 16, 2010
    Publication date: July 5, 2012
    Inventors: Yee Sook Cho, Mi-Young Son
  • Patent number: 8211699
    Abstract: The present invention relates to cell culture methods and compositions that are essentially serum-free and comprise a basal salt nutrient solution and an ErbB3 ligand.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: July 3, 2012
    Assignee: ViaCyte, Inc.
    Inventors: Allan J. Robins, Thomas C. Schulz
  • Patent number: 8206980
    Abstract: A method for culture of hair follicular dermal sheath cells or precursor cells thereof which are potent cellular materials for such as hair regeneration by cell transplantation is provided. That is, by performing culture in an animal cell culture medium supplemented with platelet-derived growth factor AA (PDGF-AA) and fibroblast growth factor 2 (FGF2), hair follicular dermal sheath cells are proliferated while sustaining their function, or hair follicular dermal sheath precursor cells are differentiated into dermal sheath cells and proliferated.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: June 26, 2012
    Assignees: Phoenixbio Co., Ltd., Biointegrence Inc.
    Inventors: Koei Toyoshima, Mikaru Matsunaga, Katsutoshi Yoshizato
  • Publication number: 20120156782
    Abstract: The present disclosure related to isolated laminin-521, methods for making recombinant laminin-521, host cells that express recombinant laminin-521, and compositions containing laminin-521. Laminin-521 can maintain stem cells in vitro pluripotency, enable self-renewal, and enable single cell survival of human embryonic stem cells. When pluripotent human embryonic stem cells are cultured on plates coated with recombinant laminin-521 (laminin-11), in the absence of differentiation inhibitors or feeder cells, the embryonic stem cells proliferate and maintain their pluripotency. It has also been discovered that human recombinant laminin-521 (laminin-11) provides single cell survival of stem cells after complete dissociation into a single cell suspension. Useful cell culture mediums containing at most 3.9 ng/ml of beta fibroblast growth factor (bFGF) are also described herein.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Applicant: BioLamina AB
    Inventors: Karl Tryggvason, Sergey Rodin
  • Patent number: 8192951
    Abstract: An improved system for large scale production of proteins and/or polypeptides in cell culture is provided. In accordance with the present invention, cells expressing the protein or polypeptide of interest are grown in media that comprise a glycolysis-inhibiting substance. Additionally and/or alternatively, cells expressing the protein or polypeptide of interest are grown in media in which glutamine is limited. The use of such a system allows high levels of protein or polypeptide production and lessens accumulation of undesirable metabolic waste products such as lactate. Proteins and polypeptides expressed in accordance with the present invention may be advantageously used in the preparation of pharmaceutical, immunogenic, agricultural or other commercial compositions.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: June 5, 2012
    Assignee: Wyeth LLC
    Inventors: Wenge Wang, Yen Tung Luan