In Vitro Proliferation of Cells Derived From Adult Human β-Cells Revealed By Cell-Lineage Tracing

Abstract
OBJECTIVE— Expansion of insulin-producing β-cells from adult human islets could alleviate donor shortage for cell-replacement therapy of diabetes. A major obstacle to development of effective expansion protocols is the rapid loss of β-cell markers in the cultured cells. Here, we report a genetic cell-lineage tracing approach for following the fate of cultured β-cells.