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1.
Nat Commun ; 10(1): 1448, 2019 03 28.
Article in English | MEDLINE | ID: mdl-30923344

ABSTRACT

The original version of this Article omitted the following from the Acknowledgements: 'This project was supported by CRC128/Project A03 of the Deutsche Forschungsgemeinschaft (DFG).'This has not been corrected in either the PDF or HTML versions.

2.
Nat Commun ; 8: 15700, 2017 06 16.
Article in English | MEDLINE | ID: mdl-28621310

ABSTRACT

G-protein-coupled receptor (GPCR) expression is extensively studied in bulk cDNA, but heterogeneity and functional patterning of GPCR expression in individual vascular cells is poorly understood. Here, we perform a microfluidic-based single-cell GPCR expression analysis in primary smooth muscle cells (SMC) and endothelial cells (EC). GPCR expression is highly heterogeneous in all cell types, which is confirmed in reporter mice, on the protein level and in human cells. Inflammatory activation in murine models of sepsis or atherosclerosis results in characteristic changes in the GPCR repertoire, and we identify functionally relevant subgroups of cells that are characterized by specific GPCR patterns. We further show that dedifferentiating SMC upregulate GPCRs such as Gpr39, Gprc5b, Gprc5c or Gpr124, and that selective targeting of Gprc5b modulates their differentiation state. Taken together, single-cell profiling identifies receptors expressed on pathologically relevant subpopulations and provides a basis for the development of new therapeutic strategies in vascular diseases.


Subject(s)
Cell Differentiation , Inflammation , Myocytes, Smooth Muscle/cytology , Receptors, G-Protein-Coupled/metabolism , Animals , Aorta/pathology , Atherosclerosis/metabolism , Cluster Analysis , Exons , Green Fluorescent Proteins/metabolism , Humans , Ligands , Mice , Mice, Inbred C57BL , Real-Time Polymerase Chain Reaction , Sepsis/metabolism , Sepsis/physiopathology , Single-Cell Analysis , Tissue Array Analysis
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