Author(s): Mikschofsky H, Broer I
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Abstract Based on its high protein content and excellent storage capacity, pea (Pisum sativum), as well as other plants, is considered to be a suitable production platform for protein-based pharmaceuticals. Its capacity to produce high proportions of active recombinant proteins (up to 2\% total soluble protein corresponding to approximately 8 mg/g fresh weight) has been proven using pea-derived strong seed-specific promoters. The active antigens produced were also stable for more than 4 years. Pea can be used as a feed additive, up to a proportion of 30\% to total feed, despite the presence of lectins. Thus, a low dosage of recombinant pea-based pharmaceuticals is non-hazardous. In addition, it is independent of N-fertilisation, has excellent biosafety characteristics and is accessible to gene transfer. Growth systems with a capacity for high yield are available for the greenhouse (5 t/ha) and, to a limited extent, also in the field (2.3 t/ha). The practicable establishment of pea seed banks allows a continuous production process. Although the use of a pea system is limited by complex transformation procedures, these advantages render pea a promising plant for the production of pharmaceuticals.
This article was published in Transgenic Res
and referenced in Journal of Vaccines & Vaccination