Non-Invasive Approach for Evaluation of Pulmonary Hypertension Using Extracellular Vesicle-Associated Small Non-Coding RNA

Extracellular vesicles are released by numerous cell types of the human body under physiological but also under pathophysiological conditions. They are important for cell-cell communication and carry specific signatures of peptides and RNAs. In this study, we aimed to determine whether extracellular...

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Bibliographic Details
Published in:	Biomolecules (Basel, Switzerland) Vol. 9; no. 11; p. 666
Main Authors:	Lipps, Christoph, Northe, Philipp, Figueiredo, Ricardo, Rohde, Manfred, Brahmer, Alexandra, Krämer-Albers, Eva-Maria, Liebetrau, Christoph, Wiedenroth, Christoph B, Mayer, Eckhard, Kriechbaum, Steffen D, Dörr, Oliver, Nef, Holger, Hamm, Christian W, Keller, Till, Troidl, Christian
Format:	Journal Article
Language:	English
Published:	Switzerland MDPI 29-10-2019 MDPI AG
Subjects:	biomarker chronic thromboembolic pulmonary hypertension extracellular vesicles pulmonary disease right heart dysfunction small non-coding rna chronic thromboembolic pulmonary hypertension small non-coding RNA extracellular vesicles biomarker pulmonary disease right heart dysfunction
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Summary:	Extracellular vesicles are released by numerous cell types of the human body under physiological but also under pathophysiological conditions. They are important for cell-cell communication and carry specific signatures of peptides and RNAs. In this study, we aimed to determine whether extracellular vesicles isolated from patients with pulmonary hypertension show a disease specific signature of small non-coding RNAs and thus have the potential to serve as diagnostic and prognostic biomarkers. Extracellular vesicles were isolated from the serum of 23 patients with chronic thromboembolic pulmonary hypertension (CTEPH) and 23 controls using two individual methods: a column-based method or by precipitation. Extracellular vesicle- associated RNAs were analyzed by next-generation sequencing applying molecular barcoding, and differentially expressed small non-coding RNAs were validated by quantitative real-time polymerase chain reaction (qRT-PCR). We identified 18 microRNAs and 21 P-element induced wimpy testis (PIWI)-interacting RNAs (piRNAs) or piRNA clusters that were differentially expressed in CTEPH patients compared with controls. Bioinformatic analysis predicted a contribution of these piRNAs to the progression of cardiac and vascular remodeling. Expression levels of DQ593039 correlated with clinically meaningful parameters such as mean pulmonary arterial pressure, pulmonary vascular resistance, right ventricular systolic pressure, and levels of N-terminal pro-brain natriuretic peptide. Thus, we identified the extracellular vesicle- derived piRNA, DQ593039, as a potential biomarker for pulmonary hypertension and right heart disease.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2218-273X 2218-273X
DOI:	10.3390/biom9110666