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How do I know that the hES cells from Cellartis are undifferentiated and pluripotent?

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How do I know that the hES cells from Cellartis are undifferentiated and pluripotent?

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In order to guarantee that the hES cells delivered from Cellartis exhibit the fundamental properties of undifferentiated hES cells, a LOT procedure is employed for hES cell production. Basically this means that the hES cell lines are propagated and expanded until a substantial number of vials (>100) can be frozen at one time. The simultaneously frozen vials of a specific cell line are referred to as one LOT. All characterization analyses of each LOT are performed on hES cells sampled from the frozen LOT. This procedure assures the quality and pluripotency of the cells delivered from Cellartis. Yet another advantage with the LOT procedure is that researchers repeatedly can receive new hES cells from the same passage and freezing day.

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