How does the immune system normally recognize and fight cancer?
The immune system plays a crucial role in identifying and eliminating cancer cells through a process known as immune surveillance. Immune cells such as T cells, natural killer cells, and macrophages can recognize and destroy abnormal cells. T cells, for example, identify cancer cells by detecting specific antigens presented on the cell surface. If the immune system is functioning properly, it can often eliminate early-stage cancer cells before they proliferate.
