Litcius/Paper detail

Low-Grade Inflammation in Long COVID Syndrome Sustains a Persistent Platelet Activation Associated With Lung Impairment

Marta Brambilla, F Fumoso, Maria Giulia Conti, Alessia Becchetti, Silvia Bozzi, Tatiana Mencarini, Piergiuseppe Agostoni, Maria Elisabetta Mancini, Nicola Cosentino, Alice Bonomi, Kevin Nallio, Arianna Galotta, Martino F. Pengo, Elena Tortorici, Miriam Bosco, Franco Cernigliaro, Chistian Pinna, Daniele Andreini, Marina Camera

2024JACC Basic to Translational Science14 citationsDOIOpen Access PDF

Abstract

In the present study, we provide evidence on the potential mechanisms involved in the residual pulmonary impairment described in long COVID syndrome. Data highlight that lung damage is significantly associated with a proinflammatory platelet phenotype, characterized mainly by the formation of platelet-leukocyte aggregates. In ex vivo experiments, long COVID plasma reproduces the platelet activation observed in vivo and highlights low-grade inflammation as a potential underpinning mechanism, exploiting a synergistic activity between C-reactive protein and subthreshold concentrations of interleukin-6. The platelet-activated phenotype is blunted by anti-inflammatory and antiplatelet drugs, suggesting a potential therapeutic option in this clinical setting.

Topics & Concepts

InflammationMedicineCoronavirus disease 2019 (COVID-19)Platelet activationLungPlatelet2019-20 coronavirus outbreakSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)ImmunologyInternal medicineCardiologyPathologyDiseaseInfectious disease (medical specialty)OutbreakLong-Term Effects of COVID-19Inflammasome and immune disordersCOVID-19 Clinical Research Studies