Stem cell exosome-containing compositions are provided, along with methods for their preparation and use for repair of soft tissue damage including treatment of skin conditions and periodontitis. The compositions provided contain isolated stem cell exosomes having increased levels of heat shock stress-response molecules. Uses of the exosome-containing compositions include treating a wound, a burn, a burn resulting from radiation treatment, a discoloration, a scar, and a keloid.

This invention relates to the differentiation of pluripotent cells (PSCs) into foregut stem cells (FSCs) using a definitive endoderm induction medium comprising a TGFfi ligand, fibroblast growth factor (FGF), bone morphogenetic protein (BMP) and a PI3K inhibitor to differentiate the pluripotent cells into definitive endoderm cells and a foregut induction medium comprising a TGF ligand to differentiate the definitive endoderm cells into foregut stem cells (FSCs). Methods of differentiation, populations of foregut stem cells, culture media and kits are provided.

Improved stem cell exosome-containing compositions are provided, along with methods for their preparation and use for regulating skin condition. The compositions provided contain isolated stem cell exosomes having increased levels of heat shock stress-response molecules. Uses of the exosome-containing compositions for regulating human skin include inducing increased skin integrity by cell renewal, enhancing water content or moisture of skin, reducing trans epidermal water loss, skin flaking, and scaling, improving skin thickness, enhancing skin tensile properties, reducing the appearance of dermal fine lines and wrinkles, improving skin texture, reducing skin pores size, enhancing skin smoothness, improving skin age spots, improving skin tone, and improving the appearance of scars and skin abrasions.

A medium is described for the protein-free and serum-free cultivation of cells, especially mammalian cells, whereby the medium contains a proportion of soy hydrolysate.

The invention provides improved methods for preparing hematopoietic cells for transplantation and the resulting improved hematopoietic cell compositions. The invention further relates to improved culture media and methods of culturing, processing, modulating, and expanding blood cell products for hematopoietic transplantation.

Alveolar-like macrophages and a method for generating alveolar-like macrophages from hemangioblasts is provided. The method comprises the steps of: i) culturing the hemangioblasts in a hematopoietic-inducing medium comprising vascular endothelial growth factor (VEGF), stem cell factor (SCF) and interleukin-3 (IL-3) for a sufficient period of time to generate macrophages, and ii) culturing the macrophages in an alveolar macrophage-inducing medium comprising granulocyte macrophage colony stimulating factor (GM-CSF), and optionally macrophage colony stimulating factor (M-CSF), under suitable conditions and for a sufficient period of time to yield alveolar-like macrophages.

The present invention relates to animal protein-free cell culture media comprising polyamines and a plant- and/or yeast-derived hydrolysate. The invention also relates to animal protein-free culturing processes, wherein cells can be cultivated, propagated and passaged without adding supplementary animal proteins in the culture medium. These processes are useful in cultivating cells, such as recombinant cells or cells infected with a virus, and for producing biological products by cell culture processes.

The present disclosure relates to the use of laminin-521 in obtaining retinal pigment epithelium (RPE) cells. Pluripotent human embryonic stem cells are cultured on plates coated with recombinant laminin-521 (laminin-11), in totally defined and xeno-free conditions. A first cell culture medium contains a growth factor, and a second cell culture medium does not contain growth factor. The stem cells are first exposed to the first cell culture medium, then exposed to the second cell culture medium for a longer time period. After a number of weeks, clinical grade RPE cells are obtained from the stem cells.

The present invention relates to animal protein-free cell culture media comprising polyamines and a plant- and/or yeast-derived hydrolysate. The invention also relates to animal protein-free culturing processes, wherein cells can be cultivated, propagated and passaged without adding supplementary animal proteins in the culture medium. These processes are useful in cultivating cells, such as recombinant cells or cells infected with a virus, and for producing biological products by cell culture processes.

The present invention relates to animal protein-free cell culture media comprising polyamines and a plant- and/or yeast-derived hydrolysate. The invention also relates to animal protein-free culturing processes, wherein cells can be cultivated, propagated and passaged without adding supplementary animal proteins in the culture medium. These processes are useful in cultivating cells, such as recombinant cells or cells infected with a virus, and for producing biological products by cell culture processes.