How CAR-T therapies work

• To start, a doctor removes some white blood cells, the part of our body's immune system responsible for combatting infections and foreign substances, from a patient. In a healthy body, the immune system can recognize abnormal, cancerous cells, but for people with cancer, it doesn't recognize that the cells are spreading.
• Then the cells are taken to a manufacturing facility at which point the cells are reengineered to recognize cancer cells and wipe them out.
• Those reprogrammed cells are sent back and administered to the patient.

'A big new field of medicine'