The present invention provides compositions and methods of preparing airway cells. In one aspect, an epithelial airway cell derived from an induced pluripotent stem (iPS) cell characterized by expression of airway cell surface markers and an ability to proliferate is described. In another aspect, methods of differentiating an iPS into an epithelial airway cell is provided. Engineered lungs, methods of making such engineered lungs comprising the epithelial airway cells and treating respiratory disorders are also disclosed.

The present disclosure describes methods and systems for use in the production of adeno-associated virus (AAV) particles, compositions and formulations, including recombinant adeno-associated viruses (rAAV). The present disclosure presents cell culture mediums for use in producing adeno-associated viruses (AAV), such as AAV which comprise a polynucleotide encoding a payload. In certain embodiments, the cell culture medium comprises a hydrolysate mixture, L-glutamine, poloxamer 188 (e.g. 10% pluronic F-68), a lipid emulsion, and a cholesterol mixture. In certain embodiments, the production process and system use Spodoptera frugiperda insect cells (such as Sf9 or Sf21) as viral production cells (VPCs). In certain embodiments, the production process and system use Baculoviral Expression Vectors (BEVs) and/or Baculoviral Infected Insect Cells (BIICs) in the production of rAAVs.

The present invention discloses a composition of an albumin-free, serum-free medium suited for culturing human hematopoietic stem cells and an albumin-free culturing method. According to the present invention, a method of culturing human hematopoietic stem cells is provided which comprises bringing human hematopoietic stem cells into contact with PVA and a PI3K activator.

The present invention provides compositions and methods of preparing airway cells. In one aspect, an epithelial airway cell derived from an induced pluripotent stem (iPS) cell characterized by expression of airway cell surface markers and an ability to proliferate is described. In another aspect, methods of differentiating an iPS into an epithelial airway cell is provided. Engineered lungs, methods of making such engineered lungs comprising the epithelial airway cells and treating respiratory disorders are also disclosed.

The present disclosure provides an in vitro method of generating bovine monocyte-derived macrophages from monocytes that produce nitric oxide and use as an indicator of innate immune response potential. The culture system includes culturing bovine monocytes in serum-free media supplemented with granulocyte-macrophage stimulating factor (GM-CSF) to generate monocyte-derived macrophages that produce nitric oxide.

The invention provides a method for culturing mammalian cells. The method provides greater control over cell growth to achieve high product titer cell cultures.

The invention provides a method for culturing mammalian cells. The method provides greater control over cell growth to achieve high product titer cell cultures by changing the temperature of the cell culture and/or by starving the cells in their asparagine supply.

The present invention provides a method for producing neural cells or a neural tissue, including the following steps (1)-(3):

(1) a first step of culturing pluripotent stem cells in the absence of feeder cells and in a medium containing 1) a TGFβ family signal transduction pathway inhibiting substance and/or a Sonic hedgehog signal transduction pathway activating substance, and 2) a factor for maintaining undifferentiated state,
(2) a second step of culturing the cells obtained in the first step in suspension to form a cell aggregate, and
(3) a third step of culturing the aggregate obtained in the second step in suspension in the presence or absence of a differentiation-inducing factor to obtain an aggregate containing neural cells or a neural tissue.

A compound additive having a biological activation function. The compound additive contains water or phosphate buffer, and multiple proteins and various factors dissolved therein. The compound additive can be added into a culture medium for cell cultivation, and can also be directly used or added into a skin repair product or a cosmetic product so as to achieve certain skin repair and cosmetic effects.

Embodiments of the present disclosure relate generally to the production of therapeutic mesenchymal stem cells (MSCs). More particularly, the present disclosure relates to the use of cell culture compositions and methods for generating MSCs that secrete neurotrophic factors and synaptic organizing agents for the treatment of neurodegenerative diseases such as Amyotrophic Lateral Sclerosis (ALS). As such, the present disclosure addresses the need for establishing a reliable source of therapeutic stem cells useful for the treatment of neurodegenerative diseases.