In a World First, a Patient’s Antibody Cells Were Just Genetically Engineered

B cells are prolific producers of antibodies, but for the first time, scientists have modified them to make other proteins to counteract a serious genetic disease.

Our B cells help prevent us from getting sick. Their job is to make antibodies, immune system proteins that fight off viruses and other foreign invaders. And they make a lot of antibodies—thousands of them every second. What if these antibody factories could be harnessed to make other things the body needs?

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