with thirty grams of protein, one-gram of sugar, and nutrients to support immune health! ( abbot sonic ) and nutrients to support immune health! dana-farber cancer institute discovered the pd-l1 pathway. pd-l1. they changed how the world fights cancer. blocking the pd-l1 protein, lets the immune system attack, attack, attack cancer. pd-l1 transformed, revolutionized, immunotherapy. pd-l1 saved my life. saved my life. saved my life. what we do here at dana-faber, changes lives everywhere.