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Edible mRNA vaccine in lettuce chloroplasts

Messenger RNA (mRNA) vaccines hold promise for creating new and improved immunizations; however, their delivery is challenging in terms of compliance, reactogenicity, cost and scalability. In response to ‘the ultimate bioengineering challenge’ competition, we propose an edible mRNA vaccine platform using lettuce chloroplasts.

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Fig. 1: Edible vaccine design.

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The authors contributed equally to the preparation of this manuscript.

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Correspondence to Carson Campbell or Esteban Azagra.

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The authors declare no competing interests.

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Campbell, C., Azagra, E. Edible mRNA vaccine in lettuce chloroplasts. Nat Rev Bioeng 3, 264–266 (2025). https://doi.org/10.1038/s44222-025-00299-1

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