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Revista alergia México

On-line version ISSN 2448-9190


RUIZ-SANCHEZ, Bibiana Patricia; CRUZ-ZARATE, David; ESTRADA-GARCIA, Iris  and  WONG-BAEZA, Isabel. Innate lymphoid cells and their role in immune response regulation. Rev. alerg. Méx. [online]. 2017, vol.64, n.3, pp.347-363. ISSN 2448-9190.

Innate lymphoid cells (ILCs) are lymphocytes lacking antigen recognition receptors and become activated in response to cytokines and through microbe-associated molecular pattern (MAMP) receptors. ILCs are found mainly in mucosal tissues and participate in the immune response against infections and in chronic inflammatory conditions. ILCs are divided in ILC-1, ILC-2 and ILC-3, and these cells have analogue functions to those of immune adaptive response lymphocytes Th1, Th2 and Th17. ILC-1 express T-bet, produce IFNγ, protect against infections with intracellular microorganisms and are related to inflammatory bowel disease immunopathology. ILC-2 express GATA3, produce IL-4, IL-5, IL-13 and amphiregulin, protect against parasitic infections and are related to allergy and obesity immunopathology. ILC-3 express ROR(γt), produce IL-17 and IL-22, protect against fungal infections and contribute to tolerance to intestinal microbiota and intestinal repair. They are related to inflammatory bowel disease and psoriasis immunopathology. In general terms, ILCs maintain homeostasis and coadjuvate in the protection against infections.

Keywords : Innate lymphoid cells; Infection; Immune response; Chronic inflammation.

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