Bouchareb R, Guauque-Olarte S, Snider J, Zaminski D, Anyanwu A, Stelzer P, Lebeche D. Proteomic Architecture of Valvular Extracellular Matrix: FNDC1 and MXRA5 Are New Biomarkers of Aortic Stenosis.
ACTA ACUST UNITED AC 2021;
6:25-39. [PMID:
33532664 PMCID:
PMC7838057 DOI:
10.1016/j.jacbts.2020.11.008]
[Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/05/2020] [Accepted: 11/05/2020] [Indexed: 12/15/2022]
Abstract
ECM proteins play an important role in maintaining the structural architecture and the mechanical behavior of the aortic valve.
Network analysis highlights a strong connection between metabolic markers and ECM proteins.
MXRA5 and FNDC1 were identified as new biomarkers of aortic stenosis in 2 independent cohorts
This study analyzed the expression of extracellular matrix (ECM) proteins during aortic valve calcification with mass spectrometry, and further validated in an independent human cohort using RNAseq data. The study reveals that valve calcification is associated with significant disruption in ECM and metabolic pathways, and highlights a strong connection between metabolic markers and ECM remodeling. It also identifies FNDC1 and MXRA5 as novel ECM biomarkers in calcified valves, electing them as potential targets in the development and progression of aortic stenosis.
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