Methods and materials are described for human genome prophylaxis and therapy of diseases using myoblast transfer. These methods result in gene transcript changes in multiple pathways. Linking the myoblast transfer technology development from DMD, cardiomyopathy, and Type-II diabetes, the myoblast transfer demonstrably mediates its effect through transfer of the normal myoblast nuclei that supply the complete human genome, in addition to just replenishing the missing gene(s) or the aberrant gene(s). The replacement genes then transcribe to produce the necessary proteins or factors for genetic repair. A variety of uses of this technology are described, including that for disease treatment, disease prevention, drug discovery, and selection of superior cells and clones for therapy

The present invention relates to a method of isolating exosomes. Specifically, the invention relates to a method comprising the steps of providing a sample including exosomes; identifying a cell-surface polypeptide on the exosomes; and isolating the exosomes using the cell-surface polypeptide on the exosomes. The exosomes isolated from by the methods of the invention can be studied for the purposes of biomarker identification, for the understanding of biological function and disease, and to find ways to target them with therapeutics.

A method of producing a 3D tissue composite, comprising: a preparation step in which a multiple number of sheet-shaped first structures containing first cells are prepared, wherein at least one of the multiple number of first structures holds a second structure containing second cells; a stacking step in which the multiple number of first structures are stacked to form a 3D composite; and a culturing step in which the 3D composite is cultured to form a 3D tissue composite containing first tissues formed from the first cells and second tissues formed from the second cells.

The invention relates to the use of a growth factor composition comprising one or more recombinant animal growth factor and one or more plant seed protein for cultivating cells for the production of cell culture meat. The invention also relates to a method of cultivating cells for the production of cell culture meat using a growth factor composition that comprises one or more recombinant animal growth factor and one or more plant seed protein.

The present disclosure relates to methods for improving myogenic differentiation capacity of a cell line or an immortalized cell line. For example, the present disclosure relates to methods of exposing an immortalized cell line (e.g., an immortalized fibroblast cell line) to culture media comprising signaling pathway agonists, antagonist, or a combination thereof in order to improve differentiation capacity. In another example, the present disclosure relates to methods of improving differentiation capacity of a cell line or an immortalized cell line where the method includes transforming an immortalized cell line with one or more myogenic regulatory factors and exposing the immortalized cell line to culture media comprising signaling pathway agonists, antagonists, or a combination thereof.

The present invention relates to a stable method for introducing at least one inducible cassette into a cell, and permitting controllable transcription from within that inducible cassette. The method may be used for any cell type, from any eukaryotic organism, but has a particular application in the introduction of inducible cassettes into pluripotent stem cells, such as animal or human pluripotent stem cells (hPSCs). The inducible cassette is controllably inserted in such a way to ensure that the genetic material it contains is not silenced or subject to negative influences from the insertion site, and transcription of the genetic material is controlled.

The present invention provides a method for swiftly producing a layered cell sheet that is non-invasively obtained and is utilizable for transplantation, etc., the method including (1) a step of applying a centrifugal force to a first cell sheet on a temperature-responsive culture surface for a predetermined time in a temperature range from a lower critical solution temperature of the temperature-responsive culture surface to 45° C., (2) a step of further placing a second cell sheet on the first cell sheet, and (3) a step of applying a centrifugal force to the first cell sheet and the second cell sheet on the temperature-responsive culture surface for a predetermined time in the temperature range from the lower critical solution temperature to 45° C.; and also provides a layered cell sheet obtained by the method.

A method to increase the efficiency of myotube generation and maturation from pluripotent stem cells comprising: (a) differentiating pluripotent stem cells to myogenic progenitors; and (b) terminally differentiating said myogenic progenitors from (a) into myotubes in the presence of at least one gamma secretase inhibitor, wherein myotube generation is increased in the presence of at least one gamma secretase inhibitor, as compared to differentiation in the absence of gamma secretase inhibitors.

Disclosed herein are agents that enhance muscle stem cell engraftment, as well as methods and compositions using the same.

A plant fat-based scaffold for growing cell-based meat products for consumption. The scaffold comprises primarily plant fats or waxes in addition to cell binding proteins and optional additional components that assist in the growth of cultivated animal cells. The scaffold can exist in both a liquified state during sterilization and a solid state during the formation of the scaffold, the seeding of the cultivated cells, and the cellular growth phase. The scaffold is capable of remaining in the final product for consumption or is partially or completely melted out of the final product and recycled into raw material for forming new scaffolds.