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Gatsiou A, Sopova K, Tselepis A, Stellos K. Interleukin-17A Triggers the Release of Platelet-Derived Factors Driving Vascular Endothelial Cells toward a Pro-Angiogenic State. Cells 2021; 10:1855. [PMID: 34440624 PMCID: PMC8392697 DOI: 10.3390/cells10081855] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/16/2021] [Accepted: 07/20/2021] [Indexed: 01/26/2023] Open
Abstract
Platelets comprise a highly interactive immune cell subset of the circulatory system traditionally known for their unique haemostatic properties. Although platelets are considered as a vault of growth factors, cytokines and chemokines with pivotal role in vascular regeneration and angiogenesis, the exact mechanisms by which they influence vascular endothelial cells (ECs) function remain underappreciated. In the present study, we examined the role of human IL-17A/IL-17RA axis in platelet-mediated pro-angiogenic responses. We reveal that IL-17A receptor (IL-17RA) mRNA is present in platelets transcriptome and a profound increase is documented on the surface of activated platelets. By quantifying the protein levels of several factors, involved in angiogenesis, we identified that IL-17A/IL17RA axis selectively induces the release of vascular endothelial growth factor, interleukin -2 and -4, as well as monocyte chemoattractant protein -1 from treated platelets. However, IL-17A exerted no effect on the release of IL-10, an anti-inflammatory factor with potentially anti-angiogenic properties, from platelets. Treatment of human endothelial cell two-dimensional tubule networks or three-dimensional spheroid and mouse aortic ring structures with IL-17A-induced platelet releasate evoked pro-angiogenic responses of ECs. Our findings suggest that IL-17A may critically affect platelet release of pro-angiogenic factors driving ECs towards a pro-angiogenic state.
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Affiliation(s)
- Aikaterini Gatsiou
- RNA Metabolism and Vascular Inflammation Group, Center of Molecular Medicine, Institute of Cardiovascular Regeneration, Johann Wolfgang Goethe University, 60596 Frankfurt am Main, Germany; (A.G.); (K.S.)
- Laboratory of Clinical Biochemistry, Atherothrombosis Research Center, University of Ioannina, 45110 Ioannina, Greece;
- Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne NE1 3BZ, UK
| | - Kateryna Sopova
- RNA Metabolism and Vascular Inflammation Group, Center of Molecular Medicine, Institute of Cardiovascular Regeneration, Johann Wolfgang Goethe University, 60596 Frankfurt am Main, Germany; (A.G.); (K.S.)
- Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne NE1 3BZ, UK
- Department of Cardiology, Freeman Hospital, Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne NE7 7DN, UK
| | - Alexandros Tselepis
- Laboratory of Clinical Biochemistry, Atherothrombosis Research Center, University of Ioannina, 45110 Ioannina, Greece;
| | - Konstantinos Stellos
- RNA Metabolism and Vascular Inflammation Group, Center of Molecular Medicine, Institute of Cardiovascular Regeneration, Johann Wolfgang Goethe University, 60596 Frankfurt am Main, Germany; (A.G.); (K.S.)
- Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne NE1 3BZ, UK
- Department of Cardiology, Freeman Hospital, Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne NE7 7DN, UK
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