METHOD OF PRODUCING PANCREATIC HORMONE-PRODUCING CELLS

• Main Authors: SHOJI, MASANOBU, HOSOYA, MASAKI
• Format: Patent
• Language: English; French; German
• Published: 19.03.2014
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS OR TEST PAPERS THEREFOR; COMPOSITIONS THEREOF; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES; CULTURE MEDIA; ENZYMOLOGY; HUMAN NECESSITIES; HYGIENE; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PHYSICS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PROCESSES OF PREPARING SUCH COMPOSITIONS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS; SPIRITS; TESTING; VINEGAR; WINE

The present invention aims to provide a production method of pancreatic hormone-producing cells in a form more mimicking the pancreatogenesis. A method of producing pancreatic hormone-producing cells, comprising subjecting stem cells to the following steps (1) - (6) : (1) a step of cultivating stem cells in a medium containing a Rho kinase inhibitor (2) a step of cultivating the cells obtained in the aforementioned step (1) in a medium containing a GSK3 inhibitor (3) a step of cultivating the cells obtained in the aforementioned step (2) in a medium containing GSK3 inhibitor and an activator of activin receptor-like kinase-4,7 (4) a step of forming a cell mass from the cells obtained in the aforementioned (3), and cultivating the cell mass in a suspension state in a medium (5) a step of cultivating the cells obtained in the aforementioned step (4) in a medium containing a retinoic acid receptor agonist, an inhibitor of AMP-activated protein kinase and/or activin receptor-like kinase-2,3,6, an inhibitor of activin receptor-like kinase-4,5,7 and a cell growth factor (6) a step of cultivating the cells obtained in the aforementioned step (5).