Abstract: We describe a cell culture medium comprising a basal medium supplemented with a CDK1/2/9 inhibitor and a Bcr-Abl/Src kinase inhibitor. The CDK1/2/9 inhibitor may comprise AZD5438 and the Bcr-Abl/Src kinase inhibitor may comprise Dasatinib. The cell culture medium may be capable of maintaining or increasing pluripotency in a cell cultured in the cell culture medium in the absence of co-culture such as feeder cells. We describe the use of such a medium for feeder-free culture of a naïve pluripotent stem cell as well as re-programming of a primed pluripotent stem cell into a naïve pluripotent stem cell.

Abstract: The present invention relates to a cell culture medium for preparing liver, gastric, pancreatic, colon or intestinal adult stem cell isolated from adult tissue, as well as for maintaining such stem cell in the undifferentiated state. The cell culture medium comprises a base medium; an ABL and SRC dual kinase inhibitor/an ABL kinase inhibitor and a SRC kinase inhibitor; a mitogenic factor; a WNT signalling pathway activator; a stimulator for NAD+ and NADP+ generation; and a cAMP/P KA pathway activator. In a particular embodiment, the ABL and SRC dual kinase inhibitor is Dasatinib; the mitogenic factor is EGF; the WNT signalling pathway activator is R-Spondin 1; the stimulator for NAD+ and NADP+ generation is nicotinamide; and the cAMP/PKA pathway activator is cholera endotoxin.