Scientists discovered that amputated tissue from a cold-water sea cucumber can heal, and grow in natural seawater for over three years.
In Mary Shelley’s classic horror novel, Frankenstein’s monster is stitched together from dead tissue and shocked into a chaotic, artificial imitation of life. It is the ultimate science fiction trope.
But out on the cold seafloor, nature is pulling off a trick that makes Hollywood’s reanimation look remarkably primitive. It was found that amputated tissue from a cold-water sea cucumber survived, healed, and continued to grow in ordinary seawater for over three years. Normally, a severed limb decomposes rapidly. Here, the discarded tissue did something entirely unprecedented.
It took on a life of its own.
“The finding challenges assumptions of what’s possible for tissue immortality and opens up exciting possibilities in the biomedical field,” the researchers noted. A progression of tube foot tissue one year versus several years after excision showing increasing wound closure and healing at the wound site over time.
Credit: Sara JobsonThe research, led by scientists at the Memorial University of Newfoundland alongside Senior Research Scientist Rachel Sipler from the Bigelow Laboratory for Ocean Sciences, began with a stroke of accidental genius.
‘s tube foot hadn’t decayed after several weeks. Intrigued, they designed a series of long-term experiments. For the experiments, the creatures’ tiny sections from the feet, body walls, and tentacles were snipped and placed into flowing, non-sterile seawater. What happened next surprised everyone. yet, but we are seeing pretty stunning growth and diversification of cells literally years after this tissue was removed,” Sipler said.
“It’s like a lizard that loses its tail. We know some lizards can grow new tails; we’re talking about whether the tail can grow a new lizard. ”remained active for over three years, demonstrating cellular diversification, active immune defense, and structural reorganization. Lacking a mouth or digestive system, the tissue uniquely sustained itself by absorbing dissolved amino acids directly from natural seawater.
It establishes a resilient and unprecedented model for tissue-culture survival. For a long time, scientists have relied on “immortal” cell lines like HeLa cells for long-term research. But standard tissue cultures require strictly sterile, bacteria-free environments to survive and fail to exhibit independent movement, healing, or actual growth.like sea cucumbers are famous for regenerating lost body parts, scientists have long assumed that discarded tissue would simply decay.
“Natural seawater is just about the most microbially diverse, least clean approach we could take experimentally,” she“Yet, that rich environment full of bacteria and all this organic matter was actually feeding them and allowing this tissue to heal and grow. ” Instead of succumbing to infection, the tissue deployed its own active immune response. Specialized cells migrated directly to wound sites, fighting off germs while pulling in nearby organic matter for fuel.
If scientists can unlock the chemical blueprints that allow these independent cells to survive and rebuild without a central nervous system or blood supply, it could advance human wound healing, antimicrobial treatments, and Moreover, this invertebrate tissue maintains its complex structural integrity in culture without the strict regulatory constraints imposed on vertebrate cell lines. This absence of legal and biosafety hurdles makes it a highly accessible new model for research and education.
Biology Health Psolus Fabricii Sea Cucumber Seawater Tissue Immortality Tissue Regeneration
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