[HTML][HTML] Redifferentiation of expanded human pancreatic β-cell-derived cells by inhibition of the NOTCH pathway

Y Bar, HA Russ, E Sintov, L Anker-Kitai… - Journal of Biological …, 2012 - ASBMB
In vitro expansion of β-cells from adult human pancreatic islets would overcome donor β-cell
shortage for cell replacement therapy for diabetes. Using a β-cell-specific labeling system
we have shown that β-cell expansion is accompanied by dedifferentiation resembling
epithelial-mesenchymal transition and loss of insulin expression. Epigenetic analyses
indicate that key β-cell genes maintain open chromatin structure in expanded β-cell-derived
(BCD) cells, although they are not transcribed. In the developing pancreas important cell …