http://youtu.be/dVn9zEYiKM4 http://www.cancercenter.com/ What is immunotherapy? Immunotherapy is a growing area of cancer treatment that uses the body's own immune system to attack cancer. A new class of immunotherapy drugs work by exposing cancer cells that have been able to hide from the immune system by posing as normal cells. In this video, Dr. Bruce Gershenhorn, Medical Oncologist at Cancer Treatment Centers of America (CTCA) near Chicago, explains how immunotherapy is designed to strip away the cancer cells' disguise and expose them to the body's immune system. Learn more at http://www.cancercenter.com/treatments/immunotherapy/.