Identification of LTBP-2 as a plasma biomarker for right ventricular dysfunction in human pulmonary arterial hypertension

Olivier Boucherat, Tetsuro Yokokawa, Vinod Krishna, Shanker Kalyana-Sundaram, Sandra Martineau, Sandra Breuils-Bonnet, Nabil Azhar, Fany Bonilla, David Gutstein, François Potus, Allan Lawrie, Jey Jeyaseelan, Steeve Provencher, Sebastien Bonnet

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Although right ventricular (RV) function is the primary determinant of morbidity and mortality in pulmonary arterial hypertension (PAH), the molecular mechanisms of RV remodeling and the circulating factors reflecting its function remain largely elusive. In this context, the identification of new molecular players implicated in maladaptive RV remodeling along with the optimization of risk stratification approaches in PAH are key priorities. Through combination of transcriptomic and proteomic profiling of RV tissues with plasma proteome profiling, we identified a panel of proteins, mainly related to cardiac fibrosis, similarly upregulated in the RV and plasma of patients with PAH with decompensated RV. Among these, we demonstrated that plasma latent transforming growth factor beta binding protein 2 (LTBP-2) level correlates with RV function in human PAH and adds incremental value to current risk stratification models to predict long-term survival in two independent PAH cohorts.

Original languageEnglish
Pages (from-to)748-760
Number of pages13
JournalNature Cardiovascular Research
Volume1
Issue number8
DOIs
StatePublished - Aug 2022
Externally publishedYes

Fingerprint

Dive into the research topics of 'Identification of LTBP-2 as a plasma biomarker for right ventricular dysfunction in human pulmonary arterial hypertension'. Together they form a unique fingerprint.

Cite this