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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.