Neutrophils drive alveolar macrophage IL-1β release during respiratory viral infection.

ABSTRACT:

Background

Alveolar macrophages are sentinels of the airways that must exhibit immune restraint to innocuous antigens but elicit a robust inflammatory response to pathogenic threats. How distinction between these dichotomous functions is controlled is poorly defined.Neutrophils are the first responders to infection, and we hypothesised that they may free alveolar macrophages from their hyporesponsive state, promoting their activation. Activation of the inflammasome and interleukin (IL)-1β release is a key early inflammatory event that must be tightly regulated. Thus, the role of neutrophils in defining inflammasome activation in the alveolar macrophage was assessed.

Methods

Mice were infected with the X31 strain of influenza virus and the role of neutrophils in alveolar macr

SUBMITTER: Peiro T 

PROVIDER: S-EPMC5969338 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature