Plasma microRNAs serve as biomarkers of therapeutic efficacy and disease progression in hypertension-induced heart failure.

Abstract:

AIMS:Recent studies have shown that microRNAs (miRNAs), besides being potent regulators of gene expression, can additionally serve as circulating biomarkers of disease. The aim of this study is to determine if plasma miRNAs can be used as indicators of disease progression or therapeutic efficacy in hypertension-induced heart disease. METHODS AND RESULTS:In order to define circulating miRNAs that change during hypertension-induced heart failure and that respond to therapeutic treatment, we performed miRNA arrays on plasma RNA from hypertensive rats that show signs of heart failure. Array analysis indicated that approximately one-third of the miRNAs on the array are detectable in plasma. Quantitative real-time polymerase chain reaction (PCR) analysis for a selected panel of miRNAs indicated that circulating levels of miR-16, miR-20b, miR-93, miR-106b, miR-223, and miR-423-5p were significantly increased in response to hypertension-induced heart failure, while this effect was blunted in response to treatment with antimiR-208a as well as an ACE inhibitor. Moreover, treatment with antimiR-208a resulted in a dramatic increase in one miRNA, miR-19b. A time course study indicated that several of these miRNA changes track with disease progression. CONCLUSIONS:Circulating levels of miRNAs are responsive to therapeutic interventions and change during the progression of hypertension-induced heart disease.

journal_name

Eur J Heart Fail

authors

Dickinson BA,Semus HM,Montgomery RL,Stack C,Latimer PA,Lewton SM,Lynch JM,Hullinger TG,Seto AG,van Rooij E

doi

10.1093/eurjhf/hft018

subject

Has Abstract

pub_date

2013-06-01 00:00:00

pages

650-9

issue

6

eissn

1388-9842

issn

1879-0844

pii

hft018

journal_volume

15

pub_type

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