The present application provides an in-vitro committed differentiation method for inducing human induced pluripotent stem cells (hiPSCs) into Leydig cells (LCs) by neural crest stem cells (NCSCs). The hiPS-derived LCs is verified by an animal model to have the capacity of regenerating senile or injured LCs, so that a new treatment for supplementing testosterone is provided for patients suffering from hypogonadism, particularly for patients suffering from late-onset hypogonadism (LOH).

A process of simply, cheaply, and reproducibly creating complex tissue models using screen printing and the tissue model prepared using the screen printing process. These models areamenable to high throughput screening. They will allow the study of components of disease progression and can be used for screening therapies.

The present invention provides a method for producing parasympathetic neurons from neural crest cells or autonomic neural progenitor cells derived therefrom, comprising a step of culturing the neural crest cells or autonomic neural progenitor cells derived therefrom in the presence of a cAMP production promoter, a BDNF signaling pathway activator, a GDNF signaling pathway activator, an NGF signaling pathway activator, an NT-3 signaling pathway activator, vitamin C, a protein kinase C activator, and a retinoic acid receptor agonist.

The present disclosure provides a medium and a method for inducing differentiation into functional cerebral cortical cells, wherein the medium comprises a neural medium and a nutritional supplement and the nutritional supplement is selected from a group consisting of SU5402, BIBF1120, IBMX and glucose. The method describes that specific factors such as an inhibitor of FGF signaling pathway, an inhibitor of VEGF signaling pathway and/or an activator of cAMP are added at specific time points during the induced differentiation process to accelerate the differentiation and maturation of the neural cells. Said method can produce stable and healthy neural cells with major functions at about 7 to 14 days after the initiation of the induced differentiation starting from human neural progenitor cells, with reduced manufacturing cost and shortened production time.

A process of simply, cheaply, and reproducibly creating complex tissue models using screen printing and the tissue model prepared using the screen printing process. These models are amenable to high throughput screening. They will allow the study of components of disease progression and can be used for screening therapies.

Described herein is a cell culture device and methods of use in three-dimensional cell co-cultures and for use in studying paracrine signaling in vitro.

A cell culture article includes a substrate having a polymer coating that is conducive to colony passaging of cells cultured on the coating. Example polymer coatings are formed from polygalacturonic acid (PGA), alginate, or combinations thereof. Cells cultured on the polymer coating can be separated from the substrate as a colony or layer of cells by exposing the polymer coating to (i) a chelating agent, (ii) a proteinase-free enzyme, or (iii) a chelating agent and a proteinase-free enzyme.

The present disclosure provides methods of generating germ layers from stem cells comprising culturing the stem cells in a culture medium having an osmolality less than 340 mOsm/kg. The present disclosure also includes a method to generate different cell lineages from the germ layers as well as to detect them by immunological methods. The present disclosure further provides methods for the generation, isolation, cultivation and propagation of committed progenitor cells and for the production of differentiated cells from the three germ layers. The present disclosure also provides culture media for use in inducing the three germ layers.

The present invention discloses a method of identifying agents that affect human astrocytes functionality using ex-vivo differentiated pluripotent stem cells (PSC). In addition, the use of human progenitor astrocytes or human astrocytes for the treatment of Amyotrophic Lateral Sclerosis (ALS) in a human subject is also disclosed.

The present invention relates to methods of culturing adherent cells, in particular adherent stem cells, to confluency at a liquid-liquid interface. The invention also provides cell culture systems useful in the culture of cells at liquid-liquid interfaces. The cell culture systems generally comprise an aqueous cell culture medium and an oil phase, there being a conditioning layer disposed between the cell culture medium and the oil phase comprising a peptide or polymer layer and a surfactant that assists in the culture of the adherent cells (in particular stem cells) at the interface between the two phases.