Emerging advances in nanomedicine for breast cancer immunotherapy: opportunities and challenges.

Cancer that begins in the breast is referred to as breast cancer. It may originate in either one or both breasts. It is one of the main causes of cancer-related death among women worldwide. Cancer immunotherapy is a game-changing treatment that improves the ability of the host defense system to spot and eliminate cancer cells with pinpoint accuracy. Cancer immunotherapy, also referred to as immuno-oncology, is a type of treatment option for breast cancer that uses the body's natural defense system to prevent, regulate and eliminate breast cancer. Immunotherapy is used to enhance or alter the functioning of the immune system so that it can locate and destroy cancer cells. Knowing how immunotherapy works and what to anticipate can often offer peace of mind to the patient who can then make informed decisions about care, especially if immunotherapy is part of the treatment plan for a particular patient.