Toxins can affect antigen receptor function in several ways. Some toxins may alter the expression or structure of antigen receptors, impairing the immune system's ability to recognize antigens. Others may mimic antigens, leading to inappropriate activation or suppression of the immune response. Additionally, some chemicals can act as immunosuppressants, reducing the number of antigen receptors available on immune cells and weakening the body's defense mechanisms against infections and cancer.
