The Laboratory is a pioneer in the use of immunomodulatory probiotic lactic acid bacteria (immunobiotics) and their cell fractions to increase respiratory defenses, both in immunocompetent and immunocompromised hosts. It is dedicated to the research and development of new immunobiotic products for the treatment and prevention of bacterial and viral respiratory infectious diseases. The working group has made significant contributions to the knowledge of the beneficial effects of immunobiotics on respiratory mucosal immunity. Likewise, physiological systems closely related to the immune response are studied, such as the hematopoietic and hemostatic systems. A line of research on the immunomodulatory effects in inflammatory liver diseases was recently incorporated. The study of the cellular and molecular interactions of lactic acid bacteria and their immunomodulatory molecules with host cells has contributed significantly to the understanding of the mode of action of immunobiotic microorganisms. The laboratory maintains close contact with international research groups such as Japan, Chile, Russia and the United States, to collaborate in the investigation of the mechanisms involved in its effects.
Some of the basic research of the immunobiotechnology group was successfully transferred to the socio-productive sector in the form of social probiotic foods, such as Yogurito and Chocolet.

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