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340,000 Mutations Uncovered: Lifestyle Impacts Cancer Risks

10/9/2025

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Summary

Story summary

Wellcome Sanger Institute researchers used targeted NanoSeq to reveal over 340,000 mutations in normal tissues from 1,042 participants.
Lifestyle factors yield distinct mutational signatures, with smoking linked to mutations in NOTCH1 gene.
Despite high mutation burden, most clones were small and did not proliferate.
The work supports links between environment and disease and highlights NanoSeq’s potential for cancer and aging.

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Story summary

Wellcome Sanger Institute researchers used targeted NanoSeq to reveal over 340,000 mutations in normal tissues from 1,042 participants.
Lifestyle factors yield distinct mutational signatures, with smoking linked to mutations in NOTCH1 gene.
Despite high mutation burden, most clones were small and did not proliferate.
The work supports links between environment and disease and highlights NanoSeq’s potential for cancer and aging.