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. 2019 Jun 4;40(30):2507–2520. doi: 10.1093/eurheartj/ehz305

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© The Author(s) 2019. Published by Oxford University Press on behalf of the European Society of Cardiology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Ten discrete heterogeneous endothelial cell populations were identified in healthy and infarcted adult mouse hearts (A and B). Contributions of cells from both healthy and myocardial infarction hearts to each cluster were compared, and cluster 2, 3, 6, 8, and 10 were largely constituted by the cells from the myocardial infarction hearts. Cluster 7 was composed exclusively of cells from the myocardial infarction hearts (C). Broad expression of endothelial cell markers, such as Pecam1 and Kdr, and the rare presence of Pdpn and Ptprc expressing cells showed purity of the studied endothelial cell population (D). Top differentially expressed marker genes were shown for each of the 10 clusters in the heatmap (E).