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@ARTICLE{Mller:141725,
author = {O. J. Müller and M. B. Heckmann and L. Ding and K. Rapti
and A. Y. Rangrez and T. Gerken and N. Christiansen and U.
E. E. Rennefahrt and H. Witt and S. G. Maldonado and P.
Ternes and D. M. Schwab and T. Ruf and S. Hille and A. Remes
and A. Jungmann and T. M. Weis and J. Kreußer and H.-J.
Gröne$^*$ and J. Backs and P. Schatz and H. A. Katus and N.
Frey},
title = {{C}omprehensive plasma and tissue profiling reveals
systemic metabolic alterations in cardiac hypertrophy and
failure.},
journal = {Cardiovascular research},
volume = {115},
number = {8},
issn = {1755-3245},
address = {Oxford},
publisher = {Oxford University Press},
reportid = {DKFZ-2018-01994},
pages = {1296-1305},
year = {2019},
abstract = {Heart failure is characterized by structural and metabolic
cardiac remodelling. The aim of the present study is to
expand our understanding of the complex metabolic
alterations in the transition from pathological hypertrophy
to heart failure and exploit the results from a
translational perspective.Mice were subjected to transverse
aortic constriction (TAC) or sham surgery and sacrificed 2,
4, or 6 weeks after the procedure. Samples from plasma,
liver, skeletal muscle, and heart were collected and
analysed using metabolomics. Cardiac samples were also
analysed by transcriptional profiling. Progressive
alterations of key cardiac metabolic pathways and gene
expression patterns indicated impaired mitochondrial
function and a metabolic switch during transition to heart
failure. Similar to the heart, liver and skeletal muscle
revealed significant metabolic alterations such as depletion
of essential fatty acids and glycerolipids in late stages of
heart failure. Circulating metabolites, particularly fatty
acids, reflected cardiac metabolic defects and deteriorating
heart function. For example, inverse correlation was found
between plasma and the heart levels of triacylglycerol
(C18:1, C18:2, C18:3), and sphingomyelin (d18:1, C23:0)
already at an early stage of heart failure. Interestingly,
combining metabolic and transcriptional data from cardiac
tissue revealed that decreased carnitine shuttling and
transportation preceded mitochondrial dysfunction. We, thus,
studied the therapeutic potential of OCTN2 (Organic
Cation/Carnitine Transporter 2), an important factor for
carnitine transportation. Cardiac overexpression of OCTN2
using an adeno-associated viral (AAV) vector significantly
improved ejection fraction and reduced interstitial fibrosis
in mice subjected to TAC.Comprehensive plasma and tissue
profiling reveals systemic metabolic alterations in heart
failure, which can be used for identification of novel
biomarkers and potential therapeutic targets.},
cin = {G130},
ddc = {610},
cid = {I:(DE-He78)G130-20160331},
pnm = {317 - Translational cancer research (POF3-317)},
pid = {G:(DE-HGF)POF3-317},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30418544},
doi = {10.1093/cvr/cvy274},
url = {https://inrepo02.dkfz.de/record/141725},
}