| 生长方案: |
For monolayer-based cardiomyocyte (CMs) differentiation, hESCs were passaged at a density of 3x105cells/well of 6-well plate and grown for 48 hours to 90% confluence in a humidified incubator with 5% CO2 at 37? On day 0, the medium was replaced with RPMI 1640 supplemented with B27 without insulin and 6 M CHIR99021. On day 1, the medium was changed to RPMI 1640 supplemented with B27 without insulin for 48 hr. Day 3, medium was refreshed to RPMI 1640 supplemented with B27 without insulin and 2 M C59 for another 48 hr. On day 5, the medium was changed back to RPMI-B27 without insulin for 48 hr, and then switched to RPMI 1640 plus normal B27 until day 12 with a medium change every 2 days. On day 12, the medium was transiently changed to RPMI 1640 without D-glucose containing ascorbic acid, human albumin and DL-Lactate for two days to allow metabolic purification of CMs. From that day on, fresh RPMI 1640-B27 was changed every two days. On day 21, cells were dissociated with Accutase at 37?followed by resuspending with fresh RPMI 1640-B27 plus Y-27632 and reseeding into 96-well plates. After 24 hr, then switched to RMPI 1640-B27 without Y-27632 for following virus confection tests.; For monolayer-based cardiomyocyte (CMs) differentiation, hESCs were passaged at a density of 3x105cells/well of 6-well plate and grown for 48 hours to 90% confluence in a humidified incubator with 5% CO2 at 37? On day 0, the medium was replaced with RPMI 1640 supplemented with B27 without insulin and 6M CHIR99021. On day 1, the medium was changed to RPMI 1640 supplemented with B27 without insulin for 48 hr. Day 3, medium was refreshed to RPMI 1640 supplemented with B27 without insulin and 2 M C59 for another 48 hr. On day 5, the medium was changed back to RPMI-B27 without insulin for 48 hr, and then switched to RPMI 1640 plus normal B27 until day 12 with a medium change every 2 days. On day 12, the medium was transiently changed to RPMI 1640 without D-glucose containing ascorbic acid, human albumin and DL-Lactate for two days to allow metabolic purification of CMs. From that day on, fresh RPMI 1640-B27 was changed every two days. On day 21, cells were dissociated with Accutase at 37?followed by resuspending with fresh RPMI 1640-B27 plus Y-27632 and reseeding into 96-well plates. After 24 hr, then switched to RMPI 1640-B27 without Y-27632 for following virus confection tests. |