The present invention provides methods to promote the differentiation of pluripotent stem cells and the products related to or resulting from such methods. In particular, the present invention provides an improved method for the formation of pancreatic hormone expressing cells and pancreatic hormone secreting cells. In addition, the present invention also provides methods to promote the differentiation of pluripotent stem cells without the use of a feeder cell layer and the products related to or resulting from such methods. The present invention also provides methods to promote glucose-stimulated insulin secretion in insulin-producing cells derived from pluripotent stem cells.

Disclosed herein are cell cultures comprising dorsal and/or ventral PDX1-positive foregut endoderm cells and methods of producing the same. Also disclosed herein are cell populations comprising substantially purified dorsal and/or ventral PDX1-positive foregut endoderm cells as well as methods for enriching, isolating and purifying dorsal and/or ventral PDX1-positive foregut endoderm cells from other cell types. Methods of identifying differentiation factors capable of promoting the differentiation of dorsal and/or ventral PDX1-positive foregut endoderm cells, are also disclosed.

The disclosure relates to methods, systems and compositions for use in the production of milk. More specifically, the disclosure is directed to systems, compositions and methods for in-vitro production of milk using an array of mammary organoids seeded on tertiary-branched, resilient duct scaffolding.

The present disclosure provides cell-based compositions for treating diabetes, methods for identifying cells that preferentially differentiate into endoderm cells, and methods for preparing insulin-producing pancreatic cells, as well as related methods of use for treating diseases related to insulin deficiency.

The present disclosure provides cell-based compositions for treating diabetes, methods for identifying cells that preferentially differentiate into endoderm cells, and methods for preparing insulin-producing pancreatic cells, as well as related methods of use for treating diseases related to insulin deficiency.

A method for producing an epithelial cell sheet, comprising culturing cells derived from oral mucosal epithelial cells on a substrate in a serum-free medium, wherein the serum-free medium comprises (i) EGF protein or KGF protein, (ii) B-27 supplement, and (iii) a ROCK inhibitor.

Provided herein are novel organoid culture media, organoid culture systems, and methods of culturing tumor organoids using the subject organoid culture media. Also provided herein are tumor organoids developed using such organoid culture systems, methods for assessing the clonal diversity of the tumor organoids, and methods for using such tumor organoids, for example, for tumor modelling and drug development applications. In particular embodiments, the tumor organoid culture media provided herein is substantially free of R-spondins (e.g., R-spondin1).

The present invention relates to a cryopreserved in vitro cell culture comprising human pancreatic progenitor cells that co-express pancreatic-duodenal homeobox factor-1 (PDX1) and NK6 homeobox 1 (NKX6.1) and are chromogranin negative. The present invention also relates to a method for cryopreserving an in vitro population of human pancreatic progenitor cells that co-express PDX1 and NKX6.1 and are chromogranin negative.

The present description provides improved methods for generating thymic epithelial progenitor (TEP) cells from pluripotent stem (PS) cells in vitro. Also provided are isolated invitro cell populations, compositions, and systems comprising TEP cells produced in vitro. Compositions and systems of cell populations of thymic epithelial cells and subpopulations thereof, as well as cells formed during different stages of differentiation of PS cells into thymic epithelial cells and subpopulations thereof are provided.

Provided herein are methods of producing β cells and precursors thereof utilizing a Wnt signaling inhibitor or PKC activator, or both. Also provided herein are in vitro cultures comprising said cells, methods of treating a subject with a disease characterized by high blood sugar levels over a prolonged period of time by administering said cells, and devices for encapsulating said cells.