Changes in extracellular matrix in failing human non-ischemic and ischemic hearts with mechanical unloading.

Changes in extracellular matrix in failing human non-ischemic and ischemic hearts with mechanical unloading.
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机械负荷下衰竭的人非缺血和缺血心脏细胞外基质的变化。

DOI:
10.1016/j.yjmcc.2022.02.003
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发表时间:
2022-05
影响因子:
5
通讯作者:
Bouten, Carlijn V. C.
Bouten, Carlijn V. C.
中科院分区:
医学2区
文献类型:
--
作者:
Zhao, Yimu;Godier-Furnemont, Amandine;Brown, Lewis M.;Fine, Barry;Vunjak-Novakovic, Gordana;Bax, Noortje A. M.;Bouten, Carlijn V. C.

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Ischemic and non-ischemic cardiomyopathies have distinct etiologies and underlying disease mechanisms, which require in-depth investigation for improved therapeutic interventions. The goal of this study was to use clinically obtained myocardium from healthy and heart failure patients, and characterize the changes in extracellular matrix (ECM) in ischemic and non-ischemic failing hearts, with and without mechanical unloading. Using tissue engineering methodologies, we also investigated how diseased human ECM, in the absence of systemic factors, can influence cardiomyocyte function. Heart tissues from heart failure patients with ischemic and non-ischemic cardiomyopathy were compared to explore differential disease phenotypes and reverse remodeling potential of left ventricular assisted device (LVAD) support at transcriptomic, proteomic and structural levels. The collected data demonstrated that the differential ECM compositions recapitulated the disease microenvironment and induced cardiomyocytes to undergo disease-like functional alterations. In addition, our study also revealed molecular profiles of non-ischemic and ischemic heart failure patients and explored the underlying mechanisms of etiology-specific impact on clinical outcome of LVAD support and tendency towards reverse remodeling.
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