title: Moss bioreactors producing improved biopharmaceuticals.
abstract: Plants may serve as superior production systems for complex recombinant pharmaceuticals. Current strategies for improving plant-based systems include the development of large-scale production facilities as well as the optimisation of protein modifications. While post-translational modifications of plant proteins generally resemble those of mammalian proteins, certain plant-specific protein-linked sugars are immunogenic in humans, a fact that restricts the use of plants in biopharmaceutical production so far. The moss Physcomitrella patens was developed as a contained tissue culture system for recombinant protein production in photo-bioreactors. By targeted gene replacements, moss strains were created with non-immunogenic humanised glycan patterns. These were proven to be superior to currently used mammalian cell lines in producing antibodies with enhanced effectiveness.
authors.affiliation: Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, D-79104 Freiburg, Germany.
authors.forename: Eva L
authors.initials: EL
authors.lastname: Decker
authors.forename: Ralf
authors.initials: R
authors.lastname: Reski
mesh_terms: D001702:Biopharmaceutics / Q000295:instrumentation / Q000379:methods*; D019149:Bioreactors; D024861:Genetic Enhancement / Q000379:methods*; D006801:Humans; D030821:Plants, Genetically Modified / Q000378:metabolism*; D015202:Protein Engineering / Q000379:methods*; D011994:Recombinant Proteins / Q000378:metabolism*; D044003:Sphagnopsida / Q000502:physiology*
chemical_list: D011994:Recombinant Proteins