Disclosed herein are compositions and methods related to differentiation of stem cells into pancreatic islet cells. In some aspects, the methods provided herein relate to generation of pancreatic β cell, α cell, δ cells, and EC cells in vitro. In some aspects, the disclosure provides pharmaceutical compositions including the cells generated according to the methods disclosed herein, as well as methods of treatment making use thereof.

Disclosed herein are methods for directing a differentiation protocol to produce cells of a desired cell fate, such as SC-β and/or SC-α cells.

This application relates to cell delivery articles and methods for delivering cells into the body in a manner that allows them to incorporate into surrounding tissue and express cell products. The cell delivery articles are generally capable of maintaining viability of the cells for a period of time that allows such incorporation to occur. Additionally, a cell delivery article may include a bio-ghost coating that prevents the cell delivery article from being recognized by the immune system, and/or minimizes or prevents development of fibrotic tissue which can interfere with nutrients and oxygen entering the cell delivery article and reaching the cells. A cell delivery article may be formulated for delivery by various routes of administration.

The disclosure relates to stem cells and their therapeutic use in the treatment and/or prevention of pancreatic diseases or disorders. Provided herein are compositions comprising c-kit positive pancreatic stem cells and methods of preparing and using c-kit positive pancreatic stem cells for the treatment and/or prevention of pancreatic diseases or disorders.

Among the various aspects of the present disclosure is the provision of a media for cryopreserved cells and methods of making and using same. An aspect of the present disclosure provides for a cell media formulation comprising (e.g., for day 0) one or more components selected from: MCDB 131; Glutamax; P/S; BSA; Glucose; ZnSO4; an enzyme for digesting DNA (e.g., DNASE1); and/or an apoptosis inhibitor (e.g., BI-6C9).

It is an object of the present invention to provide a new compound capable of efficiently inducing differentiation from pluripotent stem cells into insulin-producing cells. The object of the present invention is achieved by a compound represented by formula (I): ##STR00001## wherein R.sup.1, R.sup.2, R.sup.3, n and A have the same meanings as defined in the description, respectively, or a salt thereof.

In certain example embodiments, the invention provides a method of generating an ex vivo cell-based system comprising dissociating an original tissue sample obtained from a subject into a single cell population; determining an in vivo phenotype of the tissue sample by conducting single-cell RNA analysis on a first portion of the single cells; establishing an ex vivo cell-based system from a second portion of the single cells; and culturing the ex vivo cell-based system in a medium or conditions selected to maintain the in vivo phenotype. In some embodiments, the original tissue sample is a tumor tissue sample, such as a pancreatic ductal adenocarcinoma (PDAC) tumor sample.

An amplifying method of pancreatic cells is provided. The amplifying method includes performing digestion, resuspension, discontinuous density gradient centrifugation treatment and amplifying treatment sequentially. The mammalian pancreatic duct is used as the source of pancreatic precursor-like cells in the amplifying method, and islet cells and acinar cells in the cell clusters obtained by the discontinuous density gradient centrifugation treatment are removed. It is beneficial to improve the yield of the pancreatic precursor-like cells availably, and avoid the ethical restrictions and possible carcinogenic risks caused by using the embryonic stem cells. The amplifying medium used comprises a reprogramming substance composed of several small molecule compounds. It can avoid the risks of non-specific and off-target deletion that are easily caused by the use of the gene-editing methods to change the gene sequence. Also provided is a differentiation method and an application of the pancreatic precursor-like cells obtained by the amplifying method.

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.

Described here are methods, compositions, and systems for generating transgenic islet cells suitable for xenotransplantation.