LESSON 5 · Poison, Cure & Everything Between
Targeted Drug Delivery
Traditional chemotherapy poisons every fast-dividing cell in the body, which is why it causes such harsh side effects. The goal of targeted delivery is to hit only the cancer.
Nanoparticles can carry a drug straight to tumor tissue and release it there, largely sparing healthy cells.
Antibody-drug conjugates take this further: a powerful toxin is attached to an antibody that recognizes a cancer-specific protein. The antibody acts like a guided missile, delivering its payload directly to cancer cells while leaving healthy tissue alone.