Immunological tolerance – Induction of immunological tolerance in autoimmune diseases

The present invention provides a novel preventive and therapeutic approach based on the induction of tolerance, which is a key mechanism for the prevention of autoimmunity. The induction of tolerance is achieved through the oral administration of antigen-expressing microorganisms.

In an animal model of multiple sclerosis, the severity and occurrence of the disease symptoms could be significantly reduced by feeding the mice with the safe fodder yeast Candida utilis (Torula yeast) expressing Myelin oligodendrocyte glycoprotein (MOG). Thus, the oral administration of antigen-expressing Candida utilis suppresses the cellular and humoral immune responses taking place in the gut-associated lymphoid tissue. Furthermore, the described treatment is considered to be safe, effective and simple.

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