The Irvine Lab showed a surprising new role for the immune-regulating protein STING in a study appearing in Science, done in collaboration with the Blainey Lab and the Broad Institute’s Hacohen group. The researchers found that in addition to turning on genes involved in cell defense, the STING protein also acts as an ion channel—mechanisms involved in cell signaling and bioelectrics. This is the first human immune sensor found to translate danger signals into ion flow. The findings could help researchers improve cancer therapies targeting STING, so that they stimulate the immune system to destroy tumors without damaging healthy tissues.