Cytokine therapy is a medical treatment that uses cytokines, which are proteins that help regulate the immune system. These proteins can enhance the body's natural defenses against diseases, including certain types of cancer and autoimmune disorders. By administering specific cytokines, doctors aim to boost the immune response, helping the body to fight off infections or abnormal cells more effectively. This therapy can involve the use of various cytokines, such as interferons or interleukins, depending on the condition being treated. While cytokine therapy shows promise, it can also lead to side effects, as the immune system may become overly activated. Ongoing research continues to explore its potential benefits and risks.