期刊
DEVELOPMENT
卷 144, 期 6, 页码 1008-1017出版社
COMPANY OF BIOLOGISTS LTD
DOI: 10.1242/dev.143438
关键词
Cardiac microtissue (MT); Human pluripotent stem cell-derived endothelial cells; Human pluripotent stem cell-derived cardiomyocytes; Mesoderm induction; Three-dimensional culture model
资金
- European Research Council [323182]
- European Community's Seventh Framework Programme (FP7) [602423]
- European Union's Horizon Framework Programme [668724]
- National Centre for the Replacement, Refinement and Reduction of Animals in Research (CRACK-IT) [35911-259146]
- Cardiovasculair Onderzoek Nederland (HUSTCARE)
- European Research Council (ERC) [323182] Funding Source: European Research Council (ERC)
Cardiomyocytes and endothelial cells in the heart are in close proximity and in constant dialogue. Endothelium regulates the size of the heart, supplies oxygen to the myocardium and secretes factors that support cardiomyocyte function. Robust and predictive cardiac disease models that faithfully recapitulate native human physiology in vitro would therefore ideally incorporate this cardiomyocyte-endothelium crosstalk. Here, we have generated and characterized human cardiac microtissues in vitro that integrate both cell types in complex 3D structures. We established conditions for simultaneous differentiation of cardiomyocytes and endothelial cells from human pluripotent stem cells following initial cardiac mesoderm induction. The endothelial cells expressed cardiac markers that were also present in primary cardiac microvasculature, suggesting cardiac endothelium identity. These cell populations were further enriched based on surface markers expression, then recombined allowing development of beating 3D structures termed cardiac microtissues. This in vitro model was robustly reproducible in both embryonic and induced pluripotent stem cells. It thus represents an advanced human stem cell-based platform for cardiovascular disease modelling and testing of relevant drugs.
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