Neutrophil-epithelial interactions augment infectivity and pro-inflammatory responses to SARS-CoV-2 infection.

We have developed a model to study neutrophil-epithelial interactions which better reflects the in vivo situation than monocultures Neutrophils significantly augment SARS-CoV-2 mediated, pro-inflammatory cytokine release from the epithelium indicating a key interactionSARS-CoV-2 infection leads to a polarized inflammatory response in differentiated airway epitheliumDisruption of the epithelial barrier via addition of neutrophils or cytokines leads to increased infectionStudy reveals a key role for neutrophil-epithelial interactions in determining outcome/infectivity.