• @[email protected]
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      123 months ago

      Presumably they culture more, but obviously the first cells would have had to. Some of these companies have been very particular about sourcing their starting cells non-lethally from sanctuary animals or whatever, because why not.

    • Kata1yst
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      103 months ago

      Generally stem cell cultures these days are sourced once then replicated forever.

      • emmanuel_car
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        43 months ago

        That’s pretty incredible, with no noticeable degradation between replications? I know very little about stem cell cultures.

        • @[email protected]
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          13 months ago

          There’d have to be some degradation over time. Unless they’re repairing the DNA using computerized backups or something.

          • Kata1yst
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            73 months ago

            The stem cells themselves are self-repairing and self replicating. Quoting Wikipedia:

            Due to the self-renewal capacity of stem cells, a stem cell line can be cultured in vitro indefinitely.

            Currently all embryonic stem cell research and therapies in the US are conducted using only 486 cultures.