The immune system generated in the process of evolution, provides the body a high level of protection, and its disorders are the cause of several diseases.
In recent times the development and study of specific tools that stimulate or suppress the immune response, attach great importance. It became apparent that the positive effect of many drugs due to an increase in the overall resistance of the organism, its nonspecific immunity, as well as the activation of specific immune responses. Immunomodulators, Immunostimulants, immunosuppressants — substances that modify the immune response and affect immune cells. The sources are very diverse: microorganisms, plants, tissues, and organs of animals, chemical synthesis. Immunostimulants and immunosuppressants may be antigens and panthenole, specific or nonspecific change the operation of the entire system or its separate parts (the immune cells and cellular formations).