Microbiology and Immunology

Mucosal Immunology and Regional Immunology

Mucosal immunology is the study of immune system reactions at mucosal membranes in the intestines, urogenital tract, and respiratory system. The mucous membranes are constantly in touch with germs, food, and allergens inhaled. The mucosal immune system defends the body against infectious pathogens and maintains tolerance to non-harmful commensal bacteria and benign environmental chemicals in healthy conditions. Disruption of this equilibrium between pathogen tolerance and pathogen deprivation can result in pathological diseases such as food allergies, irritable bowel syndrome, infection susceptibility, and more.

The mucosal immune system is made up of a cellular component, humoral immunity, and defensive mechanisms that prevent bacteria and dangerous foreign substances from entering the body. Physical barriers and chemical components are two types of defensive systems