The mammalian cell lines that are engineered to produce high-value recombinant-protein drugs also produce unwanted proteins that push up the overall cost to manufacture these drugs. These same proteins can also lower drug quality. In a new paper in Nature Communications, researchers from the University of California San Diego and the Technical University of Denmark showed that their genome-editing techniques could eliminate up to 70 percent of the contaminating protein by mass in recombinant-protein drugs produced by the workhorses of mammalian cells—Chinese Hamster Ovary (CHO) cells.
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Source: Phys.org