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Revolutionary Gene Editing Tool Targets Toxic DNA Sequences

9/27/2025

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Summary

Story summary

Arc Institute researchers developed bridge recombinases enabling genomic rearrangements in human DNA, for programmable insertion, excision, and inversion.
They achieved over 80% excision of toxic repeat sequences linked to Friedreich’s ataxia.
The approach could mirror therapies targeting the BCL11A enhancer for sickle cell.
Future work will optimize delivery and broaden use in immune, stem, and plant cells, reflecting collaborative progress.

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Story summary

Arc Institute researchers developed bridge recombinases enabling genomic rearrangements in human DNA, for programmable insertion, excision, and inversion.
They achieved over 80% excision of toxic repeat sequences linked to Friedreich’s ataxia.
The approach could mirror therapies targeting the BCL11A enhancer for sickle cell.
Future work will optimize delivery and broaden use in immune, stem, and plant cells, reflecting collaborative progress.