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Cardiac Hypertensive-Cmpd17b (therapeutic) - Cell treatment proteomics

ABSTRACT: Formyl peptide receptors (FPR) play a critical role in the regulation of resolution of inflammation, an important mediator of hypertension-induced cardiac damage. We have previously discovered an FPR small-molecule prototype Cmpd17b exhibit cardioprotective effects against acute and severe cardiac inflammatory insults, but its impact on chronic cardiac inflammatory insult, such as hypertension, has not been explored. To investigate the therapeutic potential of our FPR agonist on mean arterial pressure (MAP), cardiac remodelling and function in hypertensive mice. This dataset relates to cardiac fibroblasts (human) and smooth muscle aortic cells (SMAC) cell proteome remodelling following Ang-II and Cmp17b treatment

INSTRUMENT(S): Q Exactive HF-X

ORGANISM(S): Homo Sapiens (ncbitaxon:9606)

SUBMITTER: David Greening

PROVIDER: MSV000093917 | MassIVE | Wed Jan 24 17:28:00 GMT 2024

REPOSITORIES: MassIVE

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Project description:Despite recent improvements in management of idiopathic pulmonary arterial hypertension, mortality remains high. Understanding the alterations in the transcriptome–phenotype of the key lung cells involved could provide insight into the drivers of pathogenesis. In this study, we examined differential gene expression of cell types implicated in idiopathic pulmonary arterial hypertension from lung explants of patients with idiopathic pulmonary arterial hypertension compared to control lungs. After tissue digestion, we analyzed all cells from three idiopathic pulmonary arterial hypertension and six control lungs using droplet-based single cell RNA-sequencing. After dimensional reduction by t-stochastic neighbor embedding, we compared the transcriptomes of endothelial cells, pericyte/smooth muscle cells, fibroblasts, and macrophage clusters, examining differential gene expression and pathways implicated by analysis of Gene Ontology Enrichment. We found that endothelial cells and pericyte/smooth muscle cells had the most differentially expressed gene profile compared to other cell types. Top differentially upregulated genes in endothelial cells included novel genes: ROBO4, APCDD1, NDST1, MMRN2, NOTCH4, and DOCK6, as well as previously reported genes: ENG, ORAI2, TFDP1, KDR, AMOTL2, PDGFB, FGFR1, EDN1, and NOTCH1. Several transcription factors were also found to be upregulated in idiopathic pulmonary arterial hypertension endothelial cells including SOX18, STRA13, LYL1, and ELK, which have known roles in regulating endothelial cell phenotype. In particular, SOX18 was implicated through bioinformatics analyses in regulating the idiopathic pulmonary arterial hypertension endothelial cell transcriptome. Furthermore, idiopathic pulmonary arterial hypertension endothelial cells upregulated expression of FAM60A and HDAC7, potentially affecting epigenetic changes in idiopathic pulmonary arterial hypertension endothelial cells. Pericyte/smooth muscle cells expressed genes implicated in regulation of cellular apoptosis and extracellular matrix organization, and several ligands for genes showing increased expression in endothelial cells. In conclusion, our study represents the first detailed look at the transcriptomic landscape across idiopathic pulmonary arterial hypertension lung cells and provides robust insight into alterations that occur in vivo in idiopathic pulmonary arterial hypertension lungs.

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Cardiac Hypertensive-Cmpd17b (therapeutic) - Cell treatment proteomics

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