Neutrophilia and NETopathy As Key Pathologic Drivers of Progressive Lung Impairment in Patients With COVID-19

Overview

Journal Front Pharmacol

Date 2020 Jun 26

PMID 32581816

Citations 77

Authors

Teluguakula Narasaraju

Benjamin M Tang

Martin Herrmann

Sylviane Muller

Vincent T K Chow

Marko Radic

Affiliations

Soon will be listed here.

Abstract

There is an urgent need for new therapeutic strategies to contain the spread of the novel coronavirus disease 2019 (COVID-19) and to curtail its most severe complications. Severely ill patients experience pathologic manifestations of acute respiratory distress syndrome (ARDS), and clinical reports demonstrate striking neutrophilia, elevated levels of multiple cytokines, and an exaggerated inflammatory response in fatal COVID-19. Mechanical respirator devices are the most widely applied therapy for ARDS in COVID-19, yet mechanical ventilation achieves strikingly poor survival. Many patients, who recover, experience impaired cognition or physical disability. In this review, we argue the need to develop therapies aimed at inhibiting neutrophil recruitment, activation, degranulation, and neutrophil extracellular trap (NET) release. Moreover, we suggest that currently available pharmacologic approaches should be tested as treatments for ARDS in COVID-19. In our view, targeting host-mediated immunopathology holds promise to alleviate progressive pathologic complications of ARDS and reduce morbidities and mortalities in severely ill patients with COVID-19.

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