Tldr:
Here we present evidence of cellular and molecular traits that may underlie cancer resistance and longevity in the bowhead whale. We show that bowhead whale cells are not more prone to apoptosis and do not require additional genetic hits for malignant transformation relative to human cells. Instead, the bowhead whale relies on improvements in DNA repair and the maintenance of genome stability. This more ‘conservative’ strategy that does not needlessly eliminate cells but repairs them may be beneficial for the long and cancer-free lifespan of the bowhead whale.
Abtract:
At more than 200 years, the maximum lifespan of the bowhead whale exceeds that of all other mammals. The bowhead is also the second-largest animal on Earth1, reaching over 80,000 kg. Despite its very large number of cells and long lifespan, the bowhead is not highly cancer-prone, an incongruity termed Peto’s paradox2. Here, to understand the mechanisms that underlie the cancer resistance of the bowhead whale, we examined the number of oncogenic hits required for malignant transformation of whale primary fibroblasts. Unexpectedly, bowhead whale fibroblasts required fewer oncogenic hits to undergo malignant transformation than human fibroblasts. However, bowhead whale cells exhibited enhanced DNA double-strand break repair capacity and fidelity, and lower mutation rates than cells of other mammals. We found the cold-inducible RNA-binding protein CIRBP to be highly expressed in bowhead fibroblasts and tissues. Bowhead whale CIRBP enhanced both non-homologous end joining and homologous recombination repair in human cells, reduced micronuclei formation, promoted DNA end protection, and stimulated end joining in vitro. CIRBP overexpression in Drosophila extended lifespan and improved resistance to irradiation. These findings provide evidence supporting the hypothesis that, rather than relying on additional tumour suppressor genes to prevent oncogenesis3,4,5, the bowhead whale maintains genome integrity through enhanced DNA repair. This strategy, which does not eliminate damaged cells but faithfully repairs them, may be contributing to the exceptional longevity and low cancer incidence in the bowhead whale.
Johnnygunnz on
Do we really NEED to extend our lives much more? Are we just extending lives or are they more healthy, productive lives? Or is it more years in a retirement home?
If 90 becomes the new 50, then sweet. It 95 becomes the new 85, is it worth it?
Zran on
Is this potentially what the last avatar movie was referencing with it’s whalealiens and the substance they harvested from them? I imagine ol‘ James with his interest in the ocean depths could know of this before most.
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Holy hell more old peole? Pass. Let us die at 90, please
Sounds like some Emperor Leto II action
Putin and Xi Jinping suddenly looking up recipes for whale.
The secret is eating a ton of krill every day. No more, no less.
People will do anything besides make peace with their own mortality.
Live longer only to continue fueling billionaires gluttony??? No thanks
Isn’t this the plot of Avatar 2?
Isn’t the leading theory that whales are so big that even their cancers get cancer? That’s what stuck with me at least, cuz it sounds metal af
TIL Americans hunt the endangered bowhead whale.
I got you fam
Evidence for improved DNA repair in long-lived bowhead whale
Firsanov, D. et al. Nature https://doi.org/10.1038/s41586-025-09694-5 (2025).
Tldr:
Here we present evidence of cellular and molecular traits that may underlie cancer resistance and longevity in the bowhead whale. We show that bowhead whale cells are not more prone to apoptosis and do not require additional genetic hits for malignant transformation relative to human cells. Instead, the bowhead whale relies on improvements in DNA repair and the maintenance of genome stability. This more ‘conservative’ strategy that does not needlessly eliminate cells but repairs them may be beneficial for the long and cancer-free lifespan of the bowhead whale.
Abtract:
At more than 200 years, the maximum lifespan of the bowhead whale exceeds that of all other mammals. The bowhead is also the second-largest animal on Earth1, reaching over 80,000 kg. Despite its very large number of cells and long lifespan, the bowhead is not highly cancer-prone, an incongruity termed Peto’s paradox2. Here, to understand the mechanisms that underlie the cancer resistance of the bowhead whale, we examined the number of oncogenic hits required for malignant transformation of whale primary fibroblasts. Unexpectedly, bowhead whale fibroblasts required fewer oncogenic hits to undergo malignant transformation than human fibroblasts. However, bowhead whale cells exhibited enhanced DNA double-strand break repair capacity and fidelity, and lower mutation rates than cells of other mammals. We found the cold-inducible RNA-binding protein CIRBP to be highly expressed in bowhead fibroblasts and tissues. Bowhead whale CIRBP enhanced both non-homologous end joining and homologous recombination repair in human cells, reduced micronuclei formation, promoted DNA end protection, and stimulated end joining in vitro. CIRBP overexpression in Drosophila extended lifespan and improved resistance to irradiation. These findings provide evidence supporting the hypothesis that, rather than relying on additional tumour suppressor genes to prevent oncogenesis3,4,5, the bowhead whale maintains genome integrity through enhanced DNA repair. This strategy, which does not eliminate damaged cells but faithfully repairs them, may be contributing to the exceptional longevity and low cancer incidence in the bowhead whale.
Do we really NEED to extend our lives much more? Are we just extending lives or are they more healthy, productive lives? Or is it more years in a retirement home?
If 90 becomes the new 50, then sweet. It 95 becomes the new 85, is it worth it?
Is this potentially what the last avatar movie was referencing with it’s whalealiens and the substance they harvested from them? I imagine ol‘ James with his interest in the ocean depths could know of this before most.