Provided are a method of preparing a spheroid of stem cells and a composition including the spheroid prepared by the method, the method including: culturing stem cells in a medium supplemented with matrilin-3 protein; and performing 3D cell culture on the cultured stem cells in the medium. The composition disclosed herein has effects of preventing or treating cartilage disease. In detail, the composition may be able to further promote cartilage differentiation of adult stem cells and reduce dedifferentiation and hypertrophy that may occur during cartilage regeneration, thereby providing a more effective cartilage tissue regeneration method.

Disclosed herein are synthetic leathers, artificial epidermal layers, artificial dermal layers, layered structures, products produced therefrom and methods of producing the same.

A method of generating retinal pigment epithelial (RPE) cells is disclosed. The method comprises: (a) culturing human pluripotent stem cells in a human feeder cell-conditioned medium to obtain a cultured population of human pluripotent stem cells; (b) culturing said cultured population of human pluripotent stem cells in a medium comprising a differentiating agent to obtain differentiating cells; and (c) culturing said differentiating cells in a medium comprising one or more members of the TGFβ superfamily.

An in vitro microfluidic gut-on-chip is described herein that mimics the structure and at least one function of specific areas of the gastrointestinal system in vivo. In particular, a multicellular, layered, microfluidic culture is described, allowing for interactions between lamina propria-derived cells and gastrointestinal epithelial cells and endothelial cells. This in vitro microfluidic system can be used for modeling inflammatory gastrointestinal tissue, e.g., Crohn's disease, colitis and other inflammatory gastrointestinal disorders. These multicellular, layered microfluidic gut-on-chip further allow for comparisons between types of gastrointestinal tissues, e.g., small intestinal deuodejeum, small intestinal ileium, large intestinal colon, etc., and between disease states of gastrointestinal tissue, i.e. healthy, pre-disease and diseased areas. Additionally, these microfluidic gut-on-chips allow identification of cells and cellular derived factors driving disease states and drug testing for reducing inflammation.

Provided are a method of preparing synovium-derived mesenchymal stem cells using a synovial tissue and a hydrogel, synovium-derived mesenchymal stem cells prepared by the method, a pharmaceutical composition for treating bone or cartilage damage, the pharmaceutical composition including the synovium-derived mesenchymal stem cells, and a composition and kit for culturing mesenchymal stem cells, the composition and kit including a synovial tissue and a hydrogel. When the preparation method of the present invention is used, stem cells may be effectively extracted and obtained from synovium, and the obtained synovium-derived mesenchymal stem cells may effectively treat bone or cartilage damage, and therefore, it will be able to greatly contribute to the development of a method of treating bone or cartilage damage.

Disclosed herein are synthetic leathers, artificial epidermal layers, artificial dermal layers, layered structures, products produced therefrom and methods of producing the same.

A tissue structure for enabling comprehensive understanding of gene patterns of mature cells and a method of preparing the tissue structure are provided. A tissue structure is obtained by co-culturing an endodermal, ectodermal, or mesodermal cell derived from a stem cell and at least one cell and/or factor selected from the group consisting of a vascular cell, a mesenchymal cell, a factor secreted by a vascular cell, a factor secreted by a mesenchymal cell, and a factor secreted when both a vascular cell and a mesenchymal cell exist. A value obtained by assay of a plurality of functions using a Pearson product-moment correlation coefficient is closer to a value of a cell or biological tissue sampled from an adult than a value of a cell or biological tissue sampled from a fetus.

Inducible engineered tissue constructs comprising at least one cell population comprising a genetic construct are provided. Methods of making and using said constructs are also provided.

A device for in vitro culture of embryos includes: an array having at least one well formed therein; and a bottom surface formed in the well and made of polydimethylsiloxane (PDMS). The use of the culture vessel having the well bottom surface made of PDMS has the effect of further increasing the blastocyst formation rate of embryos compared to the use of conventional arrays made of plastic.

The present invention provides A method of producing a decellularised extracellular matrix (ECM) scaffold of at least a portion of a lobular organ with no common artery, the method comprising: a) closing afferent blood vessels to substantially seal a target lobular organ or portion thereof with no common and/or major artery within a non-human donor or a dead/brain dead human donor; b) optionally: (i) cleaning coagulum and/or blood from at least a portion of the closed afferent blood vessels; and/or (ii) perfusing the organ or portion thereof to confirm closure of the afferent blood vessels; c) removing the sealed organ or portion thereof from the donor; and d) perfusing the sealed organ or portion thereof with detergent and enzymatic solutions to obtain the decellularised ECM scaffold. Methods for producing an artificial organ, and artificial organs produced by the methods are also provided.