Drugmakers’ use of the tobacco plant as a fast and cheap way to produce novel biotechnology treatments is gaining global attention because of its role in an experimental Ebola therapy.
The treatment, which had been tested only in lab animals before being given to two American medical workers in Liberia, consists of proteins called monoclonal antibodies that bind to and inactivate the Ebola virus.
For decades biotech companies have produced such antibodies by growing genetically engineered mouse cells in enormous metal bioreactors. But in the case of the new Ebola treatment ZMapp, developed by Mapp Pharmaceuticals, the antibodies were produced in tobacco plants at Kentucky Bioprocessing, a unit of tobacco giant Reynolds American.
The tobacco-plant-produced monoclonals have been dubbed “plantibodies.”
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