IFN-γ

IFN-γ, or interferon-gamma, is a protein produced mainly by certain immune cells. It plays a crucial role in the body's defense against infections and cancer by activating immune cells and enhancing their ability to identify and destroy harmful invaders. It also helps regulate immune responses, ensuring they are effective without becoming excessive. In essence, IFN-γ acts as a signaling molecule that coordinates and amplifies the immune system's efforts to protect the body.