PUBLICATION

Single-nuclei multiomic analyses identify human cardiac lymphatic endothelial cells associated with coronary arteries in the epicardium

Authors
Travisano, S.I., Harrison, M.R.M., Thornton, M.E., Grubbs, B.H., Quertermous, T., Lien, C.L.
ID
ZDB-PUB-230908-52
Date
2023
Source
Cell Reports   42: 113106113106 (Journal)
Registered Authors
Harrison, Michael, Lien, Ching-Ling (Ellen)
Keywords
CP: Cell biology, CP: Developmental biology, human fetal heart, cardiac lymphatic progenitors, multiome, PROX1, ETV2
MeSH Terms
none
PubMed
37676760 Full text @ Cell Rep.
Abstract
Cardiac lymphatic vessels play important roles in fluid homeostasis, inflammation, disease, and regeneration of the heart. The developing cardiac lymphatics in human fetal hearts are closely associated with coronary arteries, similar to those in zebrafish hearts. We identify a population of cardiac lymphatic endothelial cells (LECs) that reside in the epicardium. Single-nuclei multiomic analysis of the human fetal heart reveals the plasticity and heterogeneity of the cardiac endothelium. Furthermore, we find that VEGFC is highly expressed in arterial endothelial cells and epicardium-derived cells, providing a molecular basis for the arterial association of cardiac lymphatic development. Using a cell-type-specific integrative analysis, we identify a population of cardiac lymphatic endothelial cells marked by the PROX1 and the lymphangiocrine RELN and enriched in binding motifs of erythroblast transformation specific (ETS) variant (ETV) transcription factors. We report the in vivo molecular characterization of human cardiac lymphatics and provide a valuable resource to understand fetal heart development.
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