Mastócitos e síndrome de ativação mastocitária: o que há de novo?
Mast cells and mast cell activation syndrome: what’s new?
Sofia Couto; Tiago Rama; Catarina Martins; Luís Miguel Borrego
Resumo
Os mastócitos são as principais células efetoras da resposta alérgica aguda, desempenhando também um papel importante na angiogênese, tolerância imunológica, regulação da fibrinólise, regeneração neuronal e osteoclastogênese. Localizam-se maioritariamente na pele e nas mucosas do intestino e pulmões, onde exercem uma função “sentinela”. As síndromes de ativação mastocitária são caracterizadas pela ocorrência de episódios recorrentes de manifestações clínicas resultantes da libertação de mediadores mastocitários. Esta constitui-se como entidade complexa com um espectro de sintomas associados, representando um desafio diagnóstico e terapêutico. Nesta revisão, os autores pretendem apresentar uma visão geral sobre a estrutura e função dos mastócitos e sobre os critérios diagnósticos e abordagem terapêutica da síndrome de ativação mastocitária.
Palavras-chave
Abstract
Mast cells are the main effector cells of acute allergic response, also playing an important role in angiogenesis, immune tolerance, regulation of fibrinolysis, neuronal regeneration, and osteoclastogenesis. They are generally located in the skin and mucous membranes of the intestines and lungs, where they perform a “sentinel” function. Mast cell activation syndrome is characterized by recurrent clinical manifestations resulting from the release of mast cell mediators. This complex entity, which involves a spectrum of associated symptoms, is a diagnostic and therapeutic challenge. In this article we overview of the structure and function of mast cells, in addition to the diagnostic criteria and therapeutic approaches to mast cell activation syndrome.
Keywords
References
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Submitted date:
02/28/2022
Accepted date:
02/20/2023


