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MEDICAL ANIMATION TRANSCRIPT: Immuno-oncology, also known as immunotherapy, helps your immune system fight cancer. Cancer can sometimes hide from the immune cells that attack them. For example, both cancer and immune cells may have proteins called checkpoint proteins. When they attach, attack from other immune cells is stopped. Scientists are looking at one type of immunotherapy drug that blocks the checkpoint proteins from attaching to each other. As a result, the immune cell can attack and destroy the cancer cell. more