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Activation and inhibition of adaptive immune response mediated by mast cells.

Autori

Toniato E, Frydas I, Robuffo I, Ronconi G, Caraffa Al, Kritas SK, Conti P.

Riferimenti

Journal of biological regulators and homeostatic agents 31(3) 543-548, 2017

Autori CNR

ROBUFFO

Moduli

Abstract

Adaptive immune response plays an important role against bacteria and parasites, a reaction that also involves mast cell (MC) activation which participates in innate and adaptive immunity. In allergic reactions there is a TH2 immune response with generation of allergen-specific IgE antibodies. In MCs, IgE cross-link FcRI high affinity receptor and activate tyrosine kinase proteins, leading to stimulation of NF-_B and AP-1 resulting in the release of a number of cytokines/chemokines and other compounds. Through their proteolytic pathways, MCs may process the antigen for presentation to CD4+ cells which release TH2 cytokines and growth factors, which play an important role in asthma, allergy, anaphylaxis and inflammation. Thus, MCs can contribute to adaptive immunity. MCs may also be activated though the TLR-dependent pathway which is controlled by several proteins including myeloid differentiation factor 88 (MyD88) which can be inhibited by interleukin (IL)-37. Here, we describe the participation of MCs in adaptive immunity and inflammation, an effect that may be inhibited by IL-37.

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