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Clinical Trial Summary

To identify epigenetic-sensitive modifications and novel biomarkers linked to pathogenesis of pulmonary arterial hypertension (PAH), we will perform the first study analyzing differentially-methylated regions (DMRs) in circulating T cells (CD04+ and CD08+) isolated from peripheral blood of patients undergoing right heart catheterization. Moreover, we will perform RNA deep sequencing on lung tissue biopsies to validate if DNA methylation signatures in circulating T cells could reflect perturbations of gene expression in lung tissues.


Clinical Trial Description

Pulmonary arterial hypertension (PAH) is characterized by remodeling of pulmonary arteries caused by an inbalance of proliferation/apoptosis rate within the vascular wall. This pathological phenotype seems to be triggered by different environmental stress and injury events such as increased inflammation, DNA damage, and epigenetic deregulation. Many immune cells are increased in PAH, such as T and B lymphocytes. Remarkably, T cells are essential players of adaptive immunity and may be relevant initiators ("initial hit") of vascular remodelling. We will perform the first multi-omics study to: 1) investigate DNA methylome of circulating T cells isolated from peripheral blood of PAH patients, 2) detect transcriptomic profiles of lung tissues, 3) to assess if DNA methylation of distinct genomic regions in circulating T cells could reflect modifications of lung gene expression programs. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04282434
Study type Observational
Source University of Campania "Luigi Vanvitelli"
Contact
Status Completed
Phase
Start date June 14, 2019
Completion date October 14, 2020

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