Immortal Sea Creature's Regenerative Secrets Uncovered

Scarlet sea anemone's stem cells could hold key to anti-aging breakthroughs.

Jan. 28, 2026 at 9:07am

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Researchers from the University of Vienna have identified a large population of multipotent stem cells in the scarlet sea anemone (Nematostella vectensis), a sea creature known for its remarkable regenerative abilities and potential immortality. By studying the anemone's genome, the scientists discovered regulatory proteins involved in stem cell differentiation and gametogenesis, which could provide insights into how these animals are able to continuously renew themselves and resist the aging process.

Why it matters

Understanding the regenerative mechanisms of sea anemones and other cnidarians could lead to breakthroughs in anti-aging research and therapies for humans, who have more limited regenerative abilities compared to these marine invertebrates. As 'model organisms' for studying immortality, these creatures offer a window into biological pathways that may one day be harnessed to slow or reverse aging in people.

The details

The researchers used a new method called 'single cell genomics' to identify a large population of multipotent stem cells in the scarlet sea anemone. They focused on highly-conserved genes nanos and piwi, which are involved in stem cell differentiation and gametogenesis. When they mutated the nanos2 gene using CRISPR, they found it was necessary for forming both germ cells and somatic cells, likely evolving around 600 million years ago.

  • The study was published in the journal Science Advances in January 2026.

The players

Ulrich Technau

The senior author of the study and a researcher at the University of Vienna.

Andreas Denner

The first author of the study and a researcher at the University of Vienna.

Nematostella vectensis

The scarlet sea anemone, a member of the sea-dwelling phylum Cnidaria known for its remarkable regenerative abilities and potential immortality.

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What they’re saying

“By combining single-cell gene expression analyses and transgenesis, we have now been able to identify a large population of cells in the sea anemone that form differentiated cells such as nerve cells and glandular cells and are therefore candidates for multipotent stem cells.”

— Andreas Denner, First author of the study

What’s next

Future studies will delve deeper into the mechanisms that make cnidarians, such as the scarlet sea anemone, adept at fighting against the ravages of aging.

The takeaway

The discovery of multipotent stem cells in the scarlet sea anemone offers exciting new avenues for anti-aging research, as these creatures possess remarkable regenerative abilities that far surpass those of humans. Understanding their biological pathways could unlock breakthroughs in slowing or reversing the aging process.