3D-Bioprinted GelMA Scaffold with ASCs and HUVECs for Engineering Vascularized Adipose Tissue

Ming Huei Cheng, Chien Wen Chang, Jerry Wang, Sasinan Bupphathong, Wei Huang, Chih Hsin Lin

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The purpose of tissue engineering is to reconstruct parts of injured tissues and to resolve the shortage of organ donations. However, the main concern is the limited size of engineered tissue due to insufficient oxygen and nutrition distribution in large three-dimensional (3D) tissue constructs. To provide better support for cells inside the scaffolds, the vascularization of blood vessels within the scaffold could be a solution. This study compared the effects of different culturing systems using human adipose tissue-derived stem/stromal cells (ASCs), human umbilical vein endothelial cells (HUVECs), and coculture of ASCs and HUVECs in 3D-bioprinted gelatin methacrylate (GelMA) hydrogel constructs. The in vitro results showed that the number of live cells was highest in the coculture of ASCs and HUVECs in the GelMA hydrogel after culturing for 21 days. Additionally, the tubular structure was the most abundant in the GelMA hydrogel, containing both ASCs and HUVECs. In the in vivo test, blood vessels were present in both the HUVECs and the coculture of ASCs and HUVECs hydrogels implanted in mice. However, the blood vessel density was the highest in the HUVEC and ASC coculture groups. These findings indicate that the 3D-bioprinted GelMA hydrogel coculture system could be a promising biomaterial for large tissue engineering applications.

Original languageEnglish
Pages (from-to)406-415
Number of pages10
JournalACS Applied Bio Materials
Volume7
Issue number1
DOIs
Publication statusPublished - Jan 15 2024

Keywords

  • 3D bioprinting
  • ASCs
  • gelatin methacrylate
  • HUVECs
  • vascularized adipose tissue

ASJC Scopus subject areas

  • Biomaterials
  • General Chemistry
  • Biomedical Engineering
  • Biochemistry, medical

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