从玉米种子中提纯抗体

与传统蛋白质药来源相比，从转基因植物中获取蛋白质生物药物有诸多的优点。到目前为止，在细菌或酵母中表达出来的蛋白质还没有能够实现后转译修饰（蛋白质）生物合成后进行的化学修饰），但是已能够运用于植物。植物表达系统具有成本低、贮存稳定、可无限按比例放大等特点，可在悬浮培养液、温室或野外实现规模化生产。而最重要的，植物中无动物和人源病原体。

Antibodies from corn seed

Producing protein biopharmaceuticals in transgenic plants offers several advantages over traditional sources. Posttranslation-the chemical modification of a protein after its biosynthesis - has so far not been achieved for proteins expressed in bacteria or yeast, but it can be done using plants. Plant systems are also cheaper to run, stable to store and can be scaled up almost boundlessly, either in suspension culture, in the greenhouse or in fields. And vitally, plants are free from animal and human pathogens.