Cited by 82Tissue Engineering and Regenerative Medicine3D Printing in Biomedical ResearchBone Tissue Engineering Materials

Hemocompatibility improvement of perfusion-decellularized clinical-scale liver scaffold through heparin immobilization

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Bao, Ji, Wu, Qiong, Sun, Jiu, Zhou, Yongjie, Wang, Yujia, Jiang, Xin, Li, Li, Shi, Yujun +1 more·2015·Scientific Reports

Abstract

Whole-liver perfusion-decellularization is an attractive scaffold-preparation technique for producing clinical transplantable liver tissue. However, the scaffold's poor hemocompatibility poses a major obstacle. This study was intended to improve the hemocompatibility of perfusion-decellularized porcine liver scaffold via immobilization of heparin. Heparin was immobilized on decellularized liver scaffolds (DLSs) by electrostatic binding using a layer-by-layer self-assembly technique (/h-LBL scaffold), covalent binding via multi-point attachment (/h-MPA scaffold), or end-point attachment (/h-EPA scaffold). The effect of heparinization on anticoagulant ability and cytocompatibility were investigated. The result of heparin content and release tests revealed EPA technique performed higher efficiency of heparin immobilization than other two methods. Then, systematic in vitro investigation of prothrombin time (PT), thrombin time (TT), activated partial thromboplastin time (APTT), platelet adhesion and human platelet factor 4 (PF4, indicates platelet activation) confirmed the heparinized scaffolds, especially the /h-EPA counterparts, exhibited ultralow blood component activations and excellent hemocompatibility. Furthermore, heparin treatments prevented thrombosis successfully in DLSs with blood perfusion after implanted in vivo. Meanwhile, after heparin processes, both primary hepatocyte and endothelial cell viability were also well-maintained, which indicated that heparin treatments with improved biocompatibility might extend to various hemoperfusable whole-organ scaffolds' preparation.

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Authors
Bao, J., Wu, Q., Sun, J., Zhou, Y., Wang, Y., Jiang, X., Li, L., Shi, Y., & Bu, H.
Affiliations
Sichuan University (CN)
Corresponding author
Bu, Hong
Venue
Scientific Reports
Published
2015-06-01
Volume
5
Issue
1
Pages
10756-10756
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2261148770
Cited by
82
References
32
Citations by year
2026: 7 · 2025: 1 · 2024: 5 · 2023: 9 · 2022: 5 · 2021: 11 · 2020: 7 · 2019: 8 · 2018: 12 · 2017: 7 · 2016: 9 · 2015: 1
FWCI
9.74
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • China Postdoctoral Science Foundation (2011M501413, 2013T60855, 81200315, 2011SCU11044)
  • Sichuan University (2011SCU11044, 2013T60855, 2011M501413, 81200315)
Topics
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
  • Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
Keywords
hemocompatibility, decellularized liver scaffold, heparin immobilization, perfusion decellularization, porcine liver, anticoagulant activity, platelet activation, thromboprophylaxis, layer-by-layer assembly, covalent binding, electrostatic binding, hepatocyte viability, endothelial cell viability, liver transplantation, blood perfusion
MeSH terms
Animals, Anticoagulants, Antigens, Blood Platelets, Heparin, Liver, Perfusion, Platelet Aggregation, Swine, Platelet Activation, Cell Transplantation, Tissue Engineering, Tissue Scaffolds

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