O Papel da Imunidade Inata na COVID-19

Conteúdo do artigo principal

Luiz Henrique Silva de Sordi
https://orcid.org/0000-0003-3349-6025
Isabela Sales Oliveira Magalhães
https://orcid.org/0000-0001-5200-0414
Daniela Abreu Casselhas
Mariléia Chaves Andrade
https://orcid.org/0000-0002-4496-7331

Resumo

O sistema imune apresenta papel importante na pandemia da COVID-19, pois está envolvido na patogênese e agravamento da doença. O objetivo desta revisão é abordar os aspectos da imunidade inata na COVID-19, especialmente o papel dos neutrófilos. O sistema imune inato corresponde à primeira defesa do organismo, porém é necessário um equilíbrio para obter efetividade contra o invasor sem lesar excessivamente o hospedeiro. O desequilíbrio imune está relacionado com quadros mais graves e à ativação aberrante de neutrófilos, sendo a linfopenia e a neutrofilia preditores de pior prognóstico em pacientes com COVID-19.  Especula-se que a neutrofilia seja uma importante fonte para formação excessiva de NET (Neutrophil Extracellular Traps), levando ao aumento da resposta inflamatória e evolução desfavorável da doença. As NET também estão associadas à tempestade de citocinas, outro mecanismo relacionado a gravidade da COVID-19. Portanto, estratégias que envolvam a imunomodulação podem ter um papel importante no controle da doença.



Detalhes do artigo

Como Citar
1.
Silva de Sordi LH, Magalhães ISO, Casselhas DA, Andrade MC. O Papel da Imunidade Inata na COVID-19 . HSJ [Internet]. 2º de julho de 2020 [citado 22º de novembro de 2024];10(3):5-8. Disponível em: https://portalrcs.hcitajuba.org.br/index.php/rcsfmit_zero/article/view/997
Seção
REVISÃO NARRATIVA
Biografia do Autor

Luiz Henrique Silva de Sordi, Faculdade de Medicina de Itajubá

Acadêmico do 5° ano de Medicina da Faculdade de Medicina de Itajubá, Itajubá, MG, Brasil.

Isabela Sales Oliveira Magalhães, Faculdade de Medicina de Itajubá

Acadêmica do 5° ano de Medicina da Faculdade de Medicina de Itajubá, Itajubá, MG, Brasil; Graduação em Direito pelo Centro Universitário de Lavras, MG, Brasil.

Daniela Abreu Casselhas, Faculdade de Medicina de Itajubá

Acadêmica do 5° ano de Medicina da Faculdade de Medicina de Itajubá, Itajubá, MG, Brasil.

Mariléia Chaves Andrade, Faculdade de Medicina de Itajubá

Professora da Universidade Estadual de Montes Claros, Montes Claros, MG, Brasil; Pós-doutorado pela Universidade de Santiago de Compostela, USC, Espanha.

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