NK

Natural Killer (NK) cells are a type of immune cell that plays a crucial role in the body's defense against infections and cancer. They can recognize and destroy infected or abnormal cells directly without needing prior exposure or specific antibodies. NK cells patrol the body, scanning for cells that show signs of stress or transformation, and release chemicals to eliminate them. They act quickly and are an essential part of the innate immune system, providing a first line of defense to help maintain health and prevent disease progression.