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Updated: Mar 19, 2026

A Comparative Analysis of Recombinant Protein Expression in Different Biofactories: Bacteria, Insect Cells and Plant Systems
Published on: March 23, 2015
Recombinant biologic products versus nutraceuticals from plants - a regulatory choice?
Pascal M W Drake1, Tim H Szeto1, Mathew J Paul1
1Institute for Infection and Immunity, St. George's Hospital Medical School, London, SW17 0RE, UK.
Abstract:
Biotechnology has transformed the potential for plants to be a manufacturing source of pharmaceutical compounds. Now, with transgenic and transient expression techniques, virtually any biologic, including vaccines and therapeutics, could be manufactured in plants. However, uncertainty over the regulatory path for such new pharmaceuticals has been a deterrent. Consideration has been given to using alternative regulatory paths, including those for nutraceuticals or cosmetic agents. This review will consider these possibilities, and discuss the difficulties in establishing regulatory guidelines for new pharmaceutical manufacturing technologies.
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