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Naked Mole-Rat Enzyme Unlocks DNA Repair Secrets

10/14/2025

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Summary

Story summary

Researchers from Tongji University found four amino acid changes in the enzyme cGAS in naked mole-rats that enhance DNA repair.
Unlike in humans and mice, where cGAS inhibits DNA repair, the naked mole-rat cGAS variant promotes it.
The study suggests potential avenues for extending human lifespan by harnessing similar cGAS-based mechanisms.
However, translating these findings into human applications remains a long-term goal.

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Story summary

Researchers from Tongji University found four amino acid changes in the enzyme cGAS in naked mole-rats that enhance DNA repair.
Unlike in humans and mice, where cGAS inhibits DNA repair, the naked mole-rat cGAS variant promotes it.
The study suggests potential avenues for extending human lifespan by harnessing similar cGAS-based mechanisms.
However, translating these findings into human applications remains a long-term goal.