Macrophage Activation in Follicular Conjunctivitis during the COVID-19 Pandemic

Autor: Carla Enrica Gallenga, Martina Maritati, Marco Mura, Francesco Di Virgilio, Pio Conti, Carlo Contini
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Microorganisms, Vol 11, Iss 9, p 2198 (2023)
Druh dokumentu: article
ISSN: 2076-2607
DOI: 10.3390/microorganisms11092198
Popis: Among the symptoms of SARS-CoV-2, follicular conjunctivitis has become relevant. The conjunctiva acts as an open lymph node, reacting to the viral antigen that binds the epithelial cells, forming follicles of B cells with activated T cells and NK cells on its surface, which, in turn, talk to monocyte-derived inflammatory infected macrophages. Here, the NLRP3 inflammasome is a major driver in releasing pro-inflammatory factors such as IL-6 and caspase-1, leading to follicular conjunctivitis and bulbar congestion, even as isolated signs in the ‘asymptomatic’ patient.
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