Class / Patent application number | Description | Number of patent applications / Date published |
435370000 | Hepatic origin or derivative | 25 |
20080280357 | Cryopreservation of Hepatocytes - The invention relates to processes for the preparation of liver cells for cryopreservation, processes for cryopreservation of isolated liver cells and processes for the preparation of a culture of cryopreserved isolated liver cells. | 11-13-2008 |
20100003752 | Liver progenitor cells - The invention relates to human liver pluripotent progenitor cell lines which express hepatic cell markers such as albumin and α-fetoprotein and do not express some of the markers which are typical of oval stem cells. Also disclosed is a method of isolating the cell lines of the invention, methods for differentiating said cells into a plurality of different cell lineages, methods for conditional immortalization and metabolic selection of said cells, as well as the use of the cell lines of the invention for preparing a medicament with osteogenic differentiation activity or liver injury regeneration activity. | 01-07-2010 |
20100062527 | INDUCTION, PROPAGATION AND ISOLATION OF LIVER PROGENITOR CELLS - 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. | 03-11-2010 |
20100086999 | DIFFERENTIATION OF PRIMATE PLURIPOTENT CELLS TO HEPATOCYTE-LINEAGE CELLS - Methods for differentiating primate pluripotent stem cells into hepatocyte-lineage cells are provided. In certain embodiments, the methods utilize sequential culturing of the primate pluripotent stem cells in certain growth factors to produce hepatocyte-lineage cells. In certain embodiments, the population of cells produced by the methods is further enriched for hepatocyte-lineage cells. | 04-08-2010 |
20100087000 | HEPATIC PROGENITOR CELL AND METHOD OF ISOLATING SAME - The isolation and proliferation of stem cells, particularly, hepatic stem cells continues to face technical hurdles. For example, colonies of stem cells, once isolated, tend to stop, or at least substantially slow, proliferating. The present invention provides a method to overcome this limitation, in part. The present invention also provides a method of providing and isolating a novel hepatic progenitor cell. | 04-08-2010 |
20100112689 | METHOD OF OBTAINING VIABLE HUMAN CELLS, INCLUDING HEPATIC STEM/PROGENITOR CELLS - The present invention is directed toward a method for obtaining from whole liver or a resection thereof a population of cells comprising viable, functional liver cells enriched in hepatocytes and hepatocyte stem/progenitor cells, compositions thereof, and uses therefore. Compositions include a composition of liver cells enriched in hepatocytes and hepatocyte stem/progenitor cells and a pharmaceutical composition thereof. Uses include treatment of liver diseases, regeneration of liver, toxicity testing, and liver assist devices. | 05-06-2010 |
20100129908 | SPACED PROJECTION SUBSTRATES AND DEVICES FOR CELL CULTURE - An article for culturing cells includes a substrate on which cells can be cultured. The substrate has a base surface. An array of projections extends from the base surface. The projections have a height of about 1 micrometer to about 100 micrometers, and have a gap distance along the major surface from center to center between neighboring projections of about 10 micrometers to 80 micrometers. A plurality of arrays of projections may extend from the surface with gaps in the base surface between the arrays. Hepatocytes cultures on such microprojection array substrates maintained in vivo like morphology and membrane polarity. Hepatocytes co-cultured with helper cells on such substrates tended to grow in the area of the arrays, while the helper cells tended to grow in the areas between the arrays. | 05-27-2010 |
20100197015 | HUMAN LIVER PROGENITORS - Methods of isolating and cryopreserving progenitors from human liver are disclosed which include processing human liver tissue to provide a substantially single cell suspension comprising progenitors and non-progenitors of one or more cell lineages found in human liver; subjecting the suspension to a debulking step, which reduces substantially the number of non-progenitors in the suspension, and which provides a debulked suspension enriched in progenitors exhibiting one or more markers associated with at least one of the one or more cell lineages; and selecting from said debulked suspension those cells, which themselves, their progeny, or more mature forms thereof express one or more markers associated with at least one of the one or more cell lineages. Among these markers are CD14, CD34, CD38, CD45, and ICAM. Hepatic progenitors are characterized as being 6-15μ in diameter, diploid, glycophorin A | 08-05-2010 |
20100233808 | LIVER TISSUE SOURCE - The instant invention provides, for the first time, the use of cadaveric organs from donors with non-beating hearts as a source of functional cells such as progenitor or stem cells for various medical purposes. More specifically, a method is disclosed whereby a tissue source of progenitor cells is obtained comprising harvesting tissue from a donor, wherein the donor has a non-beating heart for as long as about thirty hours postmortem and processing the cadaveric tissue to provide progenitor cells. The instant progenitors are used for various medical purposes as means of cell therapy, gene therapy, artificial organs, bioreactors, organ regeneration and the like. | 09-16-2010 |
20110065188 | Paracrine signals from mesenchymal feeder cells and regulating expansion and differentiation of hepatic progenitors using same - A method is provided for controlling the survival, proliferation, and/or differentiation of hepatic progenitors in vitro by using specific types of mesenchymal feeder cells or one of more of the paracrine signals produced by those feeders. | 03-17-2011 |
20110117646 | ANTISENSE MODULATION OF C-REACTIVE PROTEIN EXPRESSION - Antisense compounds, compositions and methods are provided for modulating the expression of C-reactive protein. The compositions comprise antisense compounds, particularly antisense oligonucleotides, targeted to nucleic acids encoding C-reactive protein. Methods of using these compounds for modulation of C-reactive protein expression and for treatment of diseases associated with expression of C-reactive protein are provided. | 05-19-2011 |
20110256625 | Liver Engrafting Cells, Assays, and Uses Thereof - A substantially enriched mammalian hepatic liver engrafting cell population is provided. Methods are provided for the isolation and culture of this liver engrafting cell. The progenitor cells are obtained from a variety of sources, including fetal and adult tissues. The cells are useful in transplantation, for experimental evaluation, and as a source of lineage and cell specific products, including mRNA species useful in identifying genes specifically expressed in these cells, and as targets for the discovery of factors or molecules that can affect them. | 10-20-2011 |
20110294211 | HEPATOCYTE LINEAGE CELLS - Disclosed herein are methods for producing liver precursor cells as well as hepatocyte cells form pluripotent and/or multipotent cells. Also disclosed herein are methods of enriching isolating and/or purifying liver precursor cells and/or hepatocyte cells. Further disclosed are compositions comprising cell cultures and cell populations that are enriched for liver precursor cells or hepatocyte cells. | 12-01-2011 |
20120028353 | HEPATIC STELLATE CELL PRECURSORS AND METHODS OF ISOLATING SAME - The present invention relates to precursor cells to hepatic stellate cells, compositions comprising same and methods of isolating same. The surface antigenic profile of the precursors is MHC class Ia negative, ICAM-1 | 02-02-2012 |
20120178162 | POLYMER MATRICES FOR CELL CULTURE - Synthetic cell culture surfaces, including a hydrophobe modified cellulose or an hydroxylated acrylate polymer composition and optionally including a silica source, cell culture coating and cell culture articles incorporating the composition, and methods of making and using the articles for cell culture, as defined herein. | 07-12-2012 |
20120295349 | MAMMAL DEDICATED CELL LINE FROM HUMAN HEPATOCELLULAR CARCINOMA CELL - A mammal dedicated cell line is provided, which is a HepG2 hepatocellular carcinoma cell line (HepG2/NF-kB/Luc/sr39tk)1_18 obtained by co-transformation with NF-kB/Luc and NF-kB/sr39tk. Firstly, a successfully transformed pNF-kB/Luc HepG2 cell is obtained. Then, a dedicated cell line sensitive to TPA and MTX is generated by experimental screening Next, a plasmid construct carrying pNF-kB/sr39tk genome is introduced into the dedicated cell line by means of Superfect protocol. Finally, a HepG2 cell line co-expressing NF-kB/Luc and NF-kB/sr39tk is screened with G418 and ZEOCIN, and transformation result is confirmed by luminescence and radio activity. The (HepG2/NF-kB/Luc/sr39tk)1_18 obtained is suitable to screen drug for treating liver cancer and examine these cells by bioluminescence imaging and nuclear medicine imaging. | 11-22-2012 |
20130189779 | HEPATITIS C VIRUS GENE - Disclosed are an HCV gene having higher replication efficiency and higher reinfection efficiency than the known HCV gene of genotype 1b, an RNA replicon having this gene, a cell infected with this RNA replicon, which cell allows replication of HCV, and an HCV particle. The hepatitis C virus gene encodes an amino acid sequence wherein the 979th amino acid is threonine; the 1804th amino acid is leucine; and the 1966th amino acid is lysine. An HCV gene which can propagate in vitro and has higher replication efficiency and higher reinfection efficiency than the known HCV gene of genotype 1b was provided. | 07-25-2013 |
20130260458 | METHOD OF INDUCING DIFFERENTIATION OF HUMAN PLURIPOTENT STEM CELL INTO HEPATIC PROGENITOR CELL - The present invention relates to a differentiation inducing method comprising: introducing, into human induced pluripotent stem cells, a combination of genes of transcription factors which are possessed by fetal and adult hepatic cells, but are not possessed by human induced pluripotent stem cells; and adhering the human induced pluripotent stem cells to a substrate for monolayer culture in a medium containing a combination of growth-promoting agents for proliferation and differentiation, thereby enabling induction of the differentiation of the human induced pluripotent stem cells in large amounts in a short term, a hepatic progenitor cell produced by the method, and a cell composition for transplantation into the liver comprising the cell. The transcription factors include FOXA2, GATA4, HEX and C/EBPα, and the growth-promoting agents include oncostatin M, an epidermal growth factor, retinoic acid, dexamethasone, insulin, transferrin and a selenite ion. | 10-03-2013 |
20140295548 | BIOARTIFICIAL LIVER SYSTEM - A bioartificial liver system is described that incorporates a cell reservoir and hepatocyte spheroids to both increase the number of and longevity of cells in the system. Additional methods are also described for forming spheroid aggregates from isolated hepatocytes. | 10-02-2014 |
20140302601 | PRIMITIVE AND PROXIMAL HEPATIC STEM CELLS - Hepatic progenitors comprise two populations of human hepatic stem cells, primitive and proximal hepatic stem cells, and two populations of committed progenitors, one for biliary cells and one for hepatocytes. Human primitive hepatic stem cells are a very small fraction of the liver cell population and give rise to proximal hepatic stem cells constituting a much larger fraction of the liver. Human proximal hepatic stem cells give rise to biliary and hepatocyte committed progenitors. Primitive and proximal stem cells are the primary stem cells for the human liver. Human primitive hepatic stem cells may be isolated by immunoselection from human livers or culturing human liver cells under conditions which select for a human primitive hepatic stem cell. Proximal hepatic stem cells may be isolated by immunoselection, or by culturing human liver cells under conditions which include a developmental factor. Proximal hepatic stem cells may also be isolated by culturing colonies comprising a primitive hepatic stem cell under conditions which include a developmental factor. Resulting compositions may be used for treating liver disorders and for producing bioartificial organs. | 10-09-2014 |
20140377862 | CELL CULTIVATION METHOD AND CELL CULTURE - Provided is a cell cultivation method in which the cell is cultured using a peptide hydrogel as a scaffold, for carrying out high-dimensional culture of a cell such as porcine hepatocyte, human hepatocyte, porcine pancreatic islet or human pancreatic islet for a long period under conditions where cell survival, cell morphology and cell functions are maintained. Also provided are a cell culture including a cell and a peptide hydrogel obtained by the above-described cultivation method, a bioreactor including the cell culture, and a cell preparation including the cell culture. | 12-25-2014 |
20150072418 | HCV GENOTYPE 4D REPLICONS - Replicons of genotype 4d hepatitis C virus (HCV) are provided. These replicons contain adaptive mutations giving rise to the HCV's capability to replicate in vitro. Methods of preparing genotype 4d replicons and methods of using these replicons to screen antiviral agents are also provided. | 03-12-2015 |
20150307839 | MATURATION OF HEPATOCYTE-LIKE CELLS DERIVED FROM HUMAN PLURIPOTENT STEM CELLS - The present invention relates to directed differentiation and maturation of hepatocyte-like cells. In particular, the present invention relates to exposure of hepatocyte-like cells to an activator of a retinoic acid responsive receptor, such as retinoic acid (RA), optionally in combination with an inhibitor of GSK-3 (Glycogen synthase kinase 3) or activator of Wnt signalling and/or with the overlay of the cells with one or more components characteristic of the mammalian extracellular matrix (matrix overlay). The present invention also relates to exposure of hepatocyte-like cells to an activator of a retinoic acid responsive receptor, such as retinoic acid (RA), optionally in combination with an inhibitor of a cycline dependent kinase (CDK) and/or with the overlay of the cells with one or more components characteristic of the mammalian extracellular matrix (matrix overlay). The hepatocyte-like cells obtained in accordance with the present invention show a phenotype which is more similar to that of primary hepatocytes than previously shown. | 10-29-2015 |
20160160175 | CELL CULTURE KIT, SCREENING METHOD, AND METHOD OF MANUFACTURING CELL CULTURE KIT - To provide a cell culture kit including cultured living cells of various donors, and a manufacturing method thereof. The cell culture kit includes a culture plate and living cells cultured thereon. The culture plate includes a plurality of microchambers ( | 06-09-2016 |
20160251629 | COMPOSITIONS AND METHODS FOR REPROGRAMMING EUKARYOTIC CELLS | 09-01-2016 |