Thromb Haemost 2016; 115(05): 1064-1072
DOI: 10.1160/TH15-08-0650
Atherosclerosis and Ischaemic Disease
Schattauer GmbH

Multi-analyte profiling in human carotid atherosclerosis uncovers pro-inflammatory macrophage programming in plaques

Joseph Shalhoub
1   Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, UK
2   Section of Vascular Surgery, Department of Surgery and Cancer, Imperial College London, Charing Cross Hospital, London, UK
,
Leena E. Viiri*
1   Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, UK
,
Amanda J. Cross
1   Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, UK
,
Scott M. Gregan
1   Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, UK
,
David M. Allin
2   Section of Vascular Surgery, Department of Surgery and Cancer, Imperial College London, Charing Cross Hospital, London, UK
,
Nagore Astola
1   Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, UK
,
Ian J. Franklin
2   Section of Vascular Surgery, Department of Surgery and Cancer, Imperial College London, Charing Cross Hospital, London, UK
,
Alun H. Davies
2   Section of Vascular Surgery, Department of Surgery and Cancer, Imperial College London, Charing Cross Hospital, London, UK
,
Claudia Monaco
1   Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, UK
› Institutsangaben
Financial Support: This study was funded by the Circulation Foundation, Royal College of Surgeons of England, Rosetrees Trust, Graham-Dixon Charitable Trust, Peel Medical Research Trust, and European Commission under Sixth Framework (LSHM-CT-2006–037400; IMMUNATH) and Seventh Framework Programs (FP7/2007–2013; 201668; AtheroRemo) and HEALTH.2012-1.2-1; Contract Number 305739 RiskyCAD.
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Publikationsverlauf

Received: 17. August 2015

Accepted after major revision: 17. Januar 2015

Publikationsdatum:
06. Dezember 2017 (online)

Summary

Molecular characterisation of vulnerable atherosclerosis is necessary for targeting functional imaging and plaque-stabilising therapeutics. Inflammation has been linked to atherogenesis and the development of high-risk plaques. We set to quantify cytokine, chemokine and matrix metalloproteinase (MMP) protein production in cells derived from carotid plaques to map the inflammatory milieu responsible for instability. Carotid endarterectomies from carefully characterised symptomatic (n=35) and asymptomatic (n=32) patients were enzymatically dissociated producing mixed cell type atheroma cell suspensions which were cultured for 24 hours. Supernatants were interrogated for 45 analytes using the Luminex 100 platform. Twenty-nine of the 45 analytes were reproducibly detectable in the majority of donors. The in vitro production of a specific network of mediators was found to be significantly higher in symptomatic than asymptomatic plaques, including: tumour necrosis factor α, interleukin (IL) 1β, IL-6, granulocytemacrophage colony-stimulating factor (GM-CSF), macrophage colonystimulating factor (M-CSF), CCL5, CCL20, CXCL9, matrix metalloproteinase (MMP)-3 and MMP-9. Ingenuity pathway analysis of differentially expressed analytes between symptomatic and asymptomatic patients identified a number of key biological pathways (p > 10–25). In conclusion, the carotid artery plaque culprit of ischaemic neurological symptoms is characterised by an inflammatory milieu favouring inflammatory cell recruitment and pro-inflammatory macrophage polarisation.

Supplementary Material to this article is available online at www.thrombosis-online.com.

* Current affiliation: BioMediTech, University of Tampere, 33014, Tampere, Finland.


 
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