FDA approves gene therapy to treat a rare cancer
![T cells](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/08/083017_kt_tcells_genetherapy_main.jpg?fit=860%2C460&ssl=1)
A gene therapy treatment called CAR-T immunotherapy has been approved for use in a rare type of leukemia. Immune cells called T cells (shown) are engineered to seek and destroy specific types of cancer.
Alex Ritter, Jennifer Lippincott Schwartz, Gillian Griffiths/NIH/Flickr (CC BY-NC 2.0)