Therapeutic blockade of granulocyte macrophage colony-stimulating factor in COVID-19-associated hyperinflammation: challenges and opportunities

Mehta, P., Porter, J. C., Manson, J. J., Isaacs, J. D., Openshaw, P. J.M., McInnes, I. B. , Summers, C. and Chambers, R. C. (2020) Therapeutic blockade of granulocyte macrophage colony-stimulating factor in COVID-19-associated hyperinflammation: challenges and opportunities. Lancet Respiratory Medicine, 8(8), pp. 822-830. (doi: 10.1016/S2213-2600(20)30267-8) (PMID:32559419)

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Abstract

The COVID-19 pandemic is a global public health crisis, with considerable mortality and morbidity exerting pressure on health-care resources, including critical care. An excessive host inflammatory response in a subgroup of patients with severe COVID-19 might contribute to the development of acute respiratory distress syndrome (ARDS) and multiorgan failure. Timely therapeutic intervention with immunomodulation in patients with hyperinflammation could prevent disease progression to ARDS and obviate the need for invasive ventilation. Granulocyte macrophage colony-stimulating factor (GM-CSF) is an immunoregulatory cytokine with a pivotal role in initiation and perpetuation of inflammatory diseases. GM-CSF could link T-cell-driven acute pulmonary inflammation with an autocrine, self-amplifying cytokine loop leading to monocyte and macrophage activation. This axis has been targeted in cytokine storm syndromes and chronic inflammatory disorders. Here, we consider the scientific rationale for therapeutic targeting of GM-CSF in COVID-19-associated hyperinflammation. Since GM-CSF also has a key role in homoeostasis and host defence, we discuss potential risks associated with inhibition of GM-CSF in the context of viral infection and the challenges of doing clinical trials in this setting, highlighting in particular the need for a patient risk-stratification algorithm.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:McInnes, Professor Iain
Authors: Mehta, P., Porter, J. C., Manson, J. J., Isaacs, J. D., Openshaw, P. J.M., McInnes, I. B., Summers, C., and Chambers, R. C.
College/School:College of Medical Veterinary and Life Sciences > School of Infection & Immunity
Research Centre:College of Medical Veterinary and Life Sciences > School of Infection & Immunity > Centre for Immunobiology
Journal Name:Lancet Respiratory Medicine
Publisher:The Lancet Publishing Group
ISSN:2213-2600
ISSN (Online):2213-2619
Published Online:16 June 2020

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