Disease Immunity Engineering on the fly…

The doctors looking at Layla Richards saw a little girl with leukemia bubbling in her veins. She’d had bags and bags of chemotherapy and a bone marrow transplant. But...

The doctors looking at Layla Richards saw a little girl with leukemia bubbling in her veins. She’d had bags and bags of chemotherapy and a bone marrow transplant. But the cancer still thrived. By last June, the 12-month-old was desperately ill. Her parents begged—wasn’t there anything?

There was. In a freezer at her hospital—Great Ormond Street, in London—sat a vial of white blood cells. The cells had been genetically altered to hunt and destroy leukemia, but the hospital hadn’t yet sought permission to test them. They were the most extensively engineered cells ever proposed as a therapy, with a total of four genetic changes, two of them introduced by the new technique of genome editing.

Soon a doctor from Great Ormond was on the phone to Cellectis, a biotechnology company with French roots that is now located on the East Side of Manhattan. The company owned the cancer treatment, which it had devised using a gene-editing method called TALENs, a way of making cuts and fixes to DNA in living cells. “We got a call. The doctors said, ‘We’ve got a girl who is out of T cells and out of options,’” André Choulika, the CEO of Cellectis, remembers. “They wanted one of the vials made during quality-control testing.”

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10 Breakthrough Technologies 2016: Immune Engineering

The doctors looking at Layla Richards saw a little girl with leukemia bubbling in her veins. She’d had bags and bags of chemotherapy and a bone marrow transplant. But the cancer still thrived. By last June, the 12-month-old was desperately ill. Her parents begged-wasn’t there anything? There was.

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