TY - JOUR TI - Embryonic stem cells differentiate into insulin-producing cells without selection of nestin-expressing cells AU - Blyszczuk, Przemyslaw AU - Asbrand, Christian AU - Rozzo, Aldo AU - Kania, Gabriela AU - St-onge, Luc AU - Rupnik, Marjan AU - Wobus, AnnaM. T2 - The International Journal of Developmental Biology AB - We present a new strategy for the differentiation of embryonic stem (ES) cells into insulin-producing cells via a multi-step process without selection and induction of nestin-positive cells. During ES cell differentiation, transcript levels of genes characteristic of early and mature beta cells including Pdx1, Pax4, insulin and islet amyloid pancreatic peptide are up regulated. Islet-like clusters are characterized by expression of C-peptide, insulin and partially cytokeratin 19 as well as by ion channel activity similar to that found in embryonic beta cells. Cells of islet-like clusters show glucose-dependent insulin release at terminal stage. At an intermediate stage, nestin is partially co-expressed with C-peptide and cytokeratin 19, whereas islet-like clusters at the terminal stage are nestin-negative. We conclude that expression of nestin and cytokeratin 19 is a normal property of ES cells preceding differentiation into C-peptide/insulin-producing cells without any selection for nestin-positive phenotypes. PY - 2004 DO - 10.1387/ijdb.041904pb VL - 48 IS - 10 SP - 1095 EP - 1104 J2 - Int. J. Dev. Biol. LA - en SN - 0214-6282 SN - 1696-3547 UR - https://ijdb.ehu.eus/article/041904pb Y2 - 2024/12/22/18:07:20 ER -