World regulators have recognized immunotherapy as the fourth modality of cancer treatment. Body's immune response has a vital role to play in the cure of any disease that inflicts human body and the same hypothesis holds good for cancer. Immunotherapy has it origin from cancer immunology. Immuno-editing plays a significant role in cancer immunology. It is a process by which a person is protected from cancer growth and development of tumor immunogenicity.
Dendritic cells are special immune cells in the body that help the immune system recognize cancer cells. They break down cancer cells into smaller pieces (including antigens), then hold out these antigens so that other immune cells called T cells can see them. This makes it easier for the immune system cells to recognize and attack cancer cells.