Cited by 473D Printing in Biomedical ResearchTissue Engineering and Regenerative MedicinePluripotent Stem Cells Research

Human heart-on-a-chip microphysiological system comprising endothelial cells, fibroblasts, and iPSC-derived cardiomyocytes

Open access
Liu, Yun, Kamran, Rumaisa, Han, Xiaoxia, Wang, Mengxue, Li, Qiang, Lai, Daoyue, Naruse, Keiji, Takahashi, Ken·2024·Scientific Reports

Abstract

In recent years, research on organ-on-a-chip technology has been flourishing, particularly for drug screening and disease model development. Fibroblasts and vascular endothelial cells engage in crosstalk through paracrine signaling and direct cell-cell contact, which is essential for the normal development and function of the heart. Therefore, to faithfully recapitulate cardiac function, it is imperative to incorporate fibroblasts and vascular endothelial cells into a heart-on-a-chip model. Here, we report the development of a human heart-on-a-chip composed of induced pluripotent stem cell (iPSC)-derived cardiomyocytes, fibroblasts, and vascular endothelial cells. Vascular endothelial cells cultured on microfluidic channels responded to the flow of culture medium mimicking blood flow by orienting themselves parallel to the flow direction, akin to in vivo vascular alignment in response to blood flow. Furthermore, the flow of culture medium promoted integrity among vascular endothelial cells, as evidenced by CD31 staining and lower apparent permeability. The tri-culture condition of iPSC-derived cardiomyocytes, fibroblasts, and vascular endothelial cells resulted in higher expression of the ventricular cardiomyocyte marker IRX4 and increased contractility compared to the bi-culture condition with iPSC-derived cardiomyocytes and fibroblasts alone. Such tri-culture-derived cardiac tissues exhibited cardiac responses similar to in vivo hearts, including an increase in heart rate upon noradrenaline administration. In summary, we have achieved the development of a heart-on-a-chip composed of cardiomyocytes, fibroblasts, and vascular endothelial cells that mimics in vivo cardiac behavior.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/s41598-024-68275-0

Cites

60 of 60 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Coculture may improve hCM survival and limited proliferation, increasing the number of functional cardiomyocytes.

    “In addition, coculture may improve hCM survival and limited proliferation, increasing the number of functional cardiomyocytes.[ 57 , 58 , 59 ]”

    From Engineered in vitro multi-cell type ventricle model generates long-term pulsatile flow and modulates cardiac output in response to cardioactive drugs (2025) · cites this paper as [58]

    The Results section reports greater contractility and a higher percentage of cells expressing cardiomyocyte markers in the tri-culture group, supporting improved cardiac function under coculture. It does not show that coculture improved cardiomyocyte survival or proliferation, or establish an increase in their absolute number; searches for survival and proliferation found no such results in our copy. Page numbers were not provided. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Liu, Y., Kamran, R., Han, X., Wang, M., Li, Q., Lai, D., Naruse, K., & Takahashi, K.
Affiliations
Okayama University (JP)
Corresponding author
Takahashi, Ken
Venue
Scientific Reports
Published
2024-08-08
Volume
14
Issue
1
Pages
18063-18063
ISSN
2045-2322 (ISSN-L)
OpenAlex
W4401426824
Cited by
47
References
60
Citations by year
2026: 27 · 2025: 19 · 2024: 1
FWCI
5.16
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Okayama University Scientific Achievement Repository (Okayama University) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
Funders
Japan Society for the Promotion of Science (21H04960, 20H04518)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Pluripotent Stem Cells Research
Keywords
heart-on-a-chip, organ-on-a-chip, iPSC-derived cardiomyocytes, fibroblasts, vascular endothelial cells, microfluidics, endothelial cell alignment, shear flow, endothelial permeability, cardiomyocyte contractility, IRX4, noradrenaline response, cardiac tissue engineering
MeSH terms
Microphysiological Systems, Cell Differentiation, Cells, Cultured, Fibroblasts, Humans, Coculture Techniques, Myocytes, Cardiac, Endothelial Cells, Lab-On-A-Chip Devices, Induced Pluripotent Stem Cells

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review