Researchers use genetically engineered immune cells to put a child's metastatic cancer into remission

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Something to look forward to: Some of the most promising cancer treatments involve genetically modifying a patient's own immune cells. As a recent study involving a pediatric patient demonstrates, the immune system can be trained to become a highly effective weapon against cancer.

A young boy with metastatic cancer was treated with an innovative immunotherapy technique, and after 12 months, the cancer appears to be completely gone. The technique is known as chimeric antigen receptor (CAR) T-cell therapy and is designed to fight cancer cells from inside the body rather than relying on external procedures.

CAR-T therapy requires physicians to take a patient's own immune cells, genetically engineer them, and then reintroduce them into the body, where they can hunt down cancer cells. The method has shown promise in the past, but...

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