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Related Experiment Video

Updated: Apr 27, 2026

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Novel transgenic rice-based vaccines.

Tatsuhiko Azegami1, Hiroshi Itoh, Hiroshi Kiyono

  • 1Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan.

Archivum Immunologiae Et Therapiae Experimentalis
|July 17, 2014
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Summary

Plant-based oral vaccines, like the rice-based MucoRice-CTB, offer a safe and scalable approach to combat mucosal infectious diseases. Studies in mice and primates demonstrate its efficacy and stability for future human use.

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Area of Science:

  • Vaccinology
  • Molecular Biology
  • Immunology

Background:

  • Mucosal infectious diseases necessitate novel oral vaccine strategies.
  • Plant-based vaccines present advantages in cost, safety, and scalability over traditional methods.
  • Rice seeds offer a stable and digestion-resistant platform for oral vaccine development.

Purpose of the Study:

  • To evaluate the efficacy, safety, and stability of a rice-based cholera toxin B subunit vaccine (MucoRice-CTB).
  • To assess the potential of MucoRice-CTB in primate models for human application.
  • To review transgenic rice as a mucosal vaccine delivery system for future oral vaccines.

Main Methods:

  • Development and testing of a rice-based cholera toxin B subunit vaccine (MucoRice-CTB).
  • Efficacy and safety assessments were conducted in mouse models.
  • Further evaluation of efficacy and safety was performed in primate models.

Main Results:

  • The rice-based MucoRice-CTB vaccine demonstrated efficacy and safety in mouse models.
  • The vaccine also showed promising efficacy and safety profiles in primate studies.
  • Transgenic rice exhibits potential as a viable mucosal vaccine delivery system.

Conclusions:

  • MucoRice-CTB is a promising candidate for an oral vaccine against cholera.
  • Transgenic rice technology holds significant potential for developing future effective oral vaccines.
  • Further research and development are warranted to advance plant-based oral vaccines for human use.