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Updated: Aug 7, 2026
07:50
Efficient Agroinfiltration of Plants for High-level Transient Expression of Recombinant Proteins
Published on: July 23, 2013
Engineered chloroplasts as vaccine factories to combat bioterrorism
1Applied Biotechnology Institute, 101 Gateway Boulevard, Suite 100, College Station, TX 77845, USA. sstreatfield@fraunhofer-cmb.org
Trends in Biotechnology
|July 4, 2006
Summary
Developing a new anthrax vaccine involves expressing protective antigen in tobacco chloroplasts. This plant-based approach shows promise for an affordable and effective biological weapon countermeasure.
Area of Science:
- Biotechnology
- Vaccinology
- Plant molecular biology
Background:
- Bacillus anthracis poses a significant bioweapon threat.
- Current anthrax vaccines have limitations for widespread use.
Purpose of the Study:
- To explore plant-based systems for producing anthrax vaccine components.
- To assess the immunogenicity and protective efficacy of plant-produced antigens.
Main Methods:
- Expression of anthrax protective antigen in tobacco chloroplasts.
- Immunization of mice with the recombinant antigen.
- Evaluation of protective immunity against anthrax challenge.
Main Results:
- Successfully expressed immunogenic anthrax protective antigen in tobacco chloroplasts.
- Plant-derived antigen conferred protection in mice.
Conclusions:
- Tobacco chloroplasts are a viable system for producing anthrax vaccine antigens.
- This technology offers a potential pathway for developing an improved, cost-effective anthrax vaccine.
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