Loughborough University
Gomez et al., 2020 - Nature Communications.pdf (7.33 MB)

Neutrophil microvesicles drive atherosclerosis by delivering miR-155 to atheroprone endothelium

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posted on 2020-01-24, 16:11 authored by Ingrid Gomez, Ben Ward, Celine Souilhol, Chiara Recarti, Mark Ariaans, Jessica Johnston, Amanda Burnett, Marwa Mahmoud, Le Anh Luong, Laura West, Merete Long, Sion Parry, Rachel Woods, Carl Hulston, Birke Benedikter, Chiara Niespolo, Rohit Bazaz, Sheila Francis, Endre Kiss-Toth, Marc van Zandvoort, Andreas Schober, Paul Hellewell, Paul C Evans, Victoria Ridger
Neutrophils are implicated in the pathogenesis of atherosclerosis but are seldom detected in atherosclerotic plaques. We investigated whether neutrophil-derived microvesicles may influence arterial pathophysiology. Here we report that levels of circulating neutrophil microvesicles are enhanced by exposure to a high fat diet, a known risk factor for atherosclerosis. Neutrophil microvesicles accumulate at disease-prone regions of arteries exposed to disturbed flow patterns, and promote vascular inflammation and atherosclerosis in a murine model. Using cultured endothelial cells exposed to disturbed flow, we demonstrate that neutrophil microvesicles promote inflammatory gene expression by delivering miR-155, enhancing NF-κB activation. Similarly, neutrophil microvesicles increase miR-155 and enhance NF-κB at disease-prone sites of disturbed flow in vivo. Enhancement of atherosclerotic plaque formation and increase in macrophage content by neutrophil microvesicles is dependent on miR-155. We conclude that neutrophils contribute to vascular inflammation and atherogenesis through delivery of microvesicles carrying miR-155 to disease-prone regions.


British Heart Foundation Programme Grant (CS, PE)

British Heart Foundation Project Grants PG/09/067/27901 (AB, VR), PG/13/55/30365 (LW, SF), PG/14/38/30862 (CR, VR), PG/16/44/32146 (JJ, EKT, SF)

British Heart Foundation Studentship FS/14/8/30605 (BW, VR)

MRC Fellowship MR/K023977/1 (RB)

European Union’s Horizon 2020 Marie Skłodowska-Curie Innovative Training Network, TRAIN 721532 (CN)



  • Sport, Exercise and Health Sciences

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Nature Communications




Springer Nature


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Dr Carl Hulston. Deposit date: 23 January 2020

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