It entails breeding genetically modified yeast, bacteria or hamster cells to spawn therapeutic proteins which then need to be purified and refined in successive procedures.

生产过程中需要培育转基因酵母，细菌或仓鼠细胞，大量生产对人体有益的蛋白质，然后经过多道工序提纯。

youdao

So far experiments have been done on E. coli bacterial cells, Tobacco Mosaic Virus cells, as well as human and hamster cells.

BBC: Cell infected with HIV

He inserted the human form of this gene into hamster ovary cells, which then churned out a genetically engineered version of the hormone.

FORBES: Biotech Behemoth