![]() There are a number of immunotherapy drugs that work in different ways. Other immunotherapy drugs boost the immune cells’ natural ability to deal with cancer cells. Some immunotherapy drugs block the immune checkpoints, which usually prevent a person’s immune system from responding too strongly.īlocking these checkpoints allows the immune cells to respond more strongly than normal to cancer cells. Immunotherapy helps the immune system to be more effective when responding to cancer cells. Others can change the normal cells around the tumor, causing them to interfere with how the immune system works. However, cancer cells can have genetic changes that make them less visible to the immune system.Ĭancer cells may also have proteins on their surface that can turn off immune cells. The immune system can prevent and slow cancer growth. These cells are called tumor-infiltrating lymphocytes and can be a sign that the immune system is responding to the cancer. Immune cells can be present in and around tumors. It also prevents or curbs the growth of many cancers. How does it work?Ī person’s immune system detects and destroys abnormal cells. The treatment can boost the immune system or change how it functions, enabling it to find and attack cancer cells in the body. Immunotherapy is a treatment that helps the immune system fight cancer. ![]() They stop cells from dividing and can also damage cells in all phases of the cell cycle.
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