摘要:
The present invention provides a culture substrate which enables maintenance culture of human pluripotent stem cells in a pluripotent state under a feeder-free culture environment, and a culture method of human pluripotent stem cells using the culture substrate. By seeding human pluripotent stem cells dissociated into single cells at a cell density of 4×104 to 10×104 cells/cm2 onto a culture substrate coated with human laminin α5β1γ1 E8 fragment or human laminin α3β3γ2 E8 fragment preferably at a concentration of 0.5 to 25 μg/cm2, the human pluripotent stem cells can be rapidly expanded in a pluripotent state.
摘要翻译:本发明提供一种培养基质,其能够在无饲养细胞培养环境下使多能干细胞维持培养,使用培养基质培养人多能干细胞的培养方法。 通过将以4×10 4〜10×10 4个细胞/ cm 2的细胞密度分离为单个细胞的人多能干细胞接种到涂有人层粘连蛋白α5和bgr1Y1E8片段或人层粘连蛋白α3和bgr3Y3E8片段的培养基上,优选浓度 0.5至25μg/ cm 2,人多能干细胞可以在多能状态下快速扩张。
摘要:
The present invention provides a culture substrate which enables maintenance culture of human pluripotent stem cells in a pluripotent state under a feeder-free culture environment, and a culture method of human pluripotent stem cells using the culture substrate. By seeding human pluripotent stem cells dissociated into single cells at a cell density of 4×104 to 10×104 cells/cm2 onto a culture substrate coated with human laminin α5β1γ1 E8 fragment or human laminin α3β3γ2 E8 fragment preferably at a concentration of 0.5 to 25 μg/cm2, the human pluripotent stem cells can be rapidly expanded in a pluripotent state.
摘要翻译:本发明提供一种培养基质,其能够在无饲养细胞培养环境下使多能干细胞维持培养,使用培养基质培养人多能干细胞的培养方法。 通过将以4×10 4〜10×10 4个细胞/ cm 2的细胞密度分离为单个细胞的人多能干细胞接种到涂有人层粘连蛋白α5和bgr1Y1E8片段或人层粘连蛋白α3和bgr3Y3E8片段的培养基上,优选浓度 0.5至25μg/ cm 2,人多能干细胞可以在多能状态下快速扩张。
摘要:
A culture medium for preparation of feeder cells for embryonic stem cells, which can efficiently establish feeder cells for use in culture of embryonic stem cells including human's from limited donor-derived materials and culture them in a condition of a reduced risk of infection, is provided. Further, a preparation method of feeder cells, which is relatively safe even when subjected to coculture with embryonic stem cells including human's, and the resulting feeder cells therefrom are provided. With the culture medium for preparation of feeder cells for embryonic stem cells comprising at least a serum albumin and insulin in a basal medium, a cell population comprising at least one kind of cells selected from fetal skin fibroblasts, fetal myofibroblasts, fetal lung fibroblasts, fetal epithelial cells, fetal endothelial cells, adult skin fibroblasts, adult lung fibroblasts, adult epithelial cells and endothelial cells which can become feeder cells for embryonic stem cells can be stably proliferated.
摘要:
A cryopreservation medium and a cryopreservation method which make it possible to cryopreserve ES cells from primates simply with high viability are provided. A cryopreservation medium containing a cryoprotectant at a Concentration of from 12% (W/V) to 50% (W/V) and a cryopreservation method for primate embryonic stem cells, which comprises a step of suspending primate embryonic stem cells in the cryopreservation medium, and a refrigeration step of freezing the suspension of the primate embryonic stem cells in the cryopreservation medium by cooling it to −80° C. or below at a rate of from 0.5° C. to 10° C. per minute, and a preservation step of storing the frozen suspension of primate embryonic stem cells in the cryopreservation medium enable simple cryopreservation of primate embryonic stem cells with high viability.
摘要:
It is intended to provide a regenerable cell in which a desired chromosome has been deleted, a method for producing the cell, and a gene cassette and a kit to be used for the method. More particularly, it is intended to obtain an individual corresponding pluripotent stem cell easily and simply. More specifically, it is intended to efficiently establish a cell, tissue or organ that can be a donor for treating a disease without causing immune rejection response, without newly obtaining and establishing a stem cell such as ES cell from the individual, and without using an ovum as a material. It was achieved by a gene cassette in which not two recombinase recognition sites in a cis orientation are inserted, but one recombinase recognition site or two recombinase recognition sites in an opposite orientation is/are inserted and a marker gene is connected, and by application of the gene cassette to a cell fusion technique.
摘要:
A method for producing a monkey-derived embryonic stem cell comprising the steps of carrying out fertilization by insemination by in vitro fertilization or intracytoplasmic sperm injection using a monkey ovum and monkey sperms, thereby giving a fertilized ovum, allowing the fertilized ovum to differentiate into a blastocyst by in vitro culture, and establishing an ES cell line using the blastocyst; the monkey ES cell obtained by the method, a method for screening a reagent for specific differentiation into cell or tissue by using the ES cell; and a differentiated cell or differentiated tissue each differentiated from the ES cell. According to the present invention, applications of the embryonic stem cells to embryological studies clinical applications, experimental models, and the like on primates, studies of diseases, are expected.
摘要:
The present invention provides a prophylactic or therapeutic agent for amyotrophic lateral sclerosis, containing a 1,3-diphenylurea derivative or multikinase inhibitor.
摘要:
An object of the present invention is to efficiently establish cells, tissues, and organs capable of serving as donors for treating diseases, without eliciting immune rejection reactions, without starting with an egg cell. This object was achieved by providing a pluripotent stem cell having a desired genome. The cell was produced by treating with a reprogramming agent, producing a fusion cell of an MHC deficient stem cell with a somatic cell, or after producing a fusion cell of a stem cell with a somatic cell, removing a gene derived from the stem cell by performing genetic manipulation with a retrovirus.
摘要:
A gene is provided, which can be used as a marker for determining whether a certain cell, particularly an undifferentiated cell including a tissue stem cell, has pluripotency or an undifferentiated state. The gene is called Stm and includes a Stm1 gene, which is expressed specifically in a cell under an undifferentiated state if the cell has pluripotency. A kit for determining a differentiated state of a cell is also provided. The kit comprises (a) an agent capable of reacting specifically with a Stm gene or a Stm gene product; and (b) means for determining whether or not the Stm gene is expressed in the cell.
摘要:
The present invention provides a method for preparing a mature hepatocyte from an embryonic stem cell in vitro, comprising: (a) culturing the embryonic stem cell so as to differentiate into an endodermal cell; (b) isolating the endodermal cell from a population of the differenciated cell; and (c) culturing the isolated endodermal cell in the presence of a Thy 1-positive mesenchymal cell.