Light Guides the Body’s Own ‘Killers’ Toward Tumors

Scientists light the way for immune system to attack cancer

A digital illustration of T-cells attacking a cancer cell. royaltystockphoto.com/Shutterstock

Researchers have discovered a simple, practical way to use light and optics to steer killer immune cells toward tumors. It’s a step in the complicated science behind harnessing the immune system to fight cancer.