Cited by 713D Printing in Biomedical ResearchMicrofluidic and Capillary Electrophoresis ApplicationsTissue Engineering and Regenerative Medicine

Human‐on‐Leaf‐Chip: A Biomimetic Vascular System Integrated with Chamber‐Specific Organs

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Mao, Mao, Bei, Ho Pan, Lam, Chun Hei, Chen, Pengyu, Wang, Shuqi, Chen, Ying, He, Jiankang, Zhao, Xin·2020·Small

Abstract

The vascular network is a central component of the organ‐on‐a‐chip system to build a 3D physiological microenvironment with controlled physical and biochemical variables. Inspired by ubiquitous biological systems such as leaf venation and circulatory systems, a fabrication strategy is devised to develop a biomimetic vascular system integrated with freely designed chambers, which function as niches for chamber‐specific vascularized organs. As a proof of concept, a human‐on‐leaf‐chip system with biomimetic multiscale vasculature systems connecting the self‐assembled 3D vasculatures in chambers is fabricated, mimicking the in vivo complex architectures of the human cardiovascular system connecting vascularized organs. Besides, two types of vascularized organs are built independently within the two halves of the system to verify its feasibility for conducting comparative experiments for organ‐specific metastasis studies in a single chip. Successful culturing of human hepatoma G2 cells (HepG2s) and mesenchymal stem cells (MSCs) with human umbilical vein endothelial cells (HUVECs) shows good vasculature formation, and organ‐specific metastasis is simulated through perfusion of pancreatic cancer cells and shows distinct cancer encapsulation by MSCs, which is absent in HepG2s. Given good culture efficacy, study design flexibility, and ease of modification, these results show that the bioinspired human‐on‐leaf‐chip possesses great potential in comparative and metastasis studies while retaining organ‐to‐organ crosstalk.

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Authors
Mao, M., Bei, H. P., Lam, C. H., Chen, P., Wang, S., Chen, Y., He, J., & Zhao, X.
Affiliations
  • Hong Kong Polytechnic University (HK)
  • Xi'an Jiaotong University (CN)
  • First Affiliated Hospital Zhejiang University (CN)
  • Guangdong University of Technology (CN)
Corresponding author
  • He, Jiankang
  • Zhao, Xin
Venue
Small
Publisher
Wiley
Published
2020-04-24
Volume
16
Issue
22
Pages
e2000546-e2000546
ISSN
  • 1613-6810 (ISSN-L)
  • 1613-6829
OpenAlex
W3020462440
Cited by
71
References
39
Citations by year
2026: 3 · 2025: 9 · 2024: 11 · 2023: 20 · 2022: 9 · 2021: 13 · 2020: 6
FWCI
3.77
Type
journal article
Language
en
Open access
Locations
  • Small (publishedVersion)
  • PubMed (publishedVersion)
  • PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion)
Funders
  • General Research Fund of Shanghai Normal University (15202119)
  • Hong Kong Polytechnic University
  • National Natural Science Foundation of China
  • Fundamental Research Funds for the Central Universities
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
  • Physical Sciences › Engineering › Biomedical Engineering › Microfluidic and Capillary Electrophoresis Applications
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
Keywords
organ-on-a-chip, leaf venation, organ-specific metastasis, human umbilical vein endothelial cells, mesenchymal stem cells, HepG2 cells, pancreatic cancer, organ perfusion
MeSH terms
Humans, Neoplasms, Plant Leaves, Biomimetics, Lab-On-A-Chip Devices, Tumor Microenvironment, Mesenchymal Stem Cells, Human Umbilical Vein Endothelial Cells

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