The immortal jellyfish (Turritopsis dohrnii) possesses genetic switches within its cells that enable mature cells to revert to a primitive, stem-cell-like state, a process called transdifferentiation that can occur in as little as 3 days, allowing the jellyfish to potentially avoid aging and death by restarting its life cycle.
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So, how does it work? Inside the jellyfish's cells are genetic switches that tell them to revert to a more primitive state, similar to stem cells in humans. In the lab, scientists have seen this process happen in as little as 3 days. The ability to completely reprogram mature cells has fascinated researchers studying age, tissue repair, and regenerative medicine.
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