Cell-modified bioprinted microspheres for vascular regeneration

Jian Shen, Yongli Ji, Mingjun Xie, Haiming Zhao, Wanling Xuan, Li Yin, Xiaohua Yu, Fangfang Xu, Shengan Su, Jing Nie, Yao Xie, Qing Gao, Hong Ma, Xueying Ke, Zhenyu Shi, Jianzhong Fu, Zhenjie Liu, Yong He, Meixiang Xiang

Research output: Contribution to journalArticle

Abstract

Cell therapy is a promising strategy in which living cells or cellular materials are delivered to treat a variety of diseases. Here, we developed an electrospray bioprinting method to rapidly generate cell-laden hydrogel microspheres, which limit the migration of the captured cells and provide an immunologically privileged microenvironment for cell survival in vivo. Currently, therapeutic angiogenesis aims to induce collateral vessel formation after limb ischemia. However, the clinical application of gene and cell therapy has been impeded by concerns regarding its inefficacy, as well as the associated risk of immunogenicity and oncogenicity. In this study, hydrogel microspheres encapsulating VEGF-overexpressing HEK293T cells showed good safety via subcutaneously injecting into male C57BL/6 mice. In addition, these cell-modified microspheres effectively promoted angiogenesis in a mouse hind-limb ischemia model. Therefore, we demonstrated the great therapeutic potential of this approach to induce angiogenesis in limb ischemia, indicating that bioprinting has a bright future in cell therapy.

Original languageEnglish (US)
Article number110896
JournalMaterials Science and Engineering C
Volume112
DOIs
StatePublished - Jul 2020

Keywords

  • 3D bioprinting
  • Cell therapy
  • Therapeutic angiogenesis
  • VEGF control release

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Shen, J., Ji, Y., Xie, M., Zhao, H., Xuan, W., Yin, L., Yu, X., Xu, F., Su, S., Nie, J., Xie, Y., Gao, Q., Ma, H., Ke, X., Shi, Z., Fu, J., Liu, Z., He, Y., & Xiang, M. (2020). Cell-modified bioprinted microspheres for vascular regeneration. Materials Science and Engineering C, 112, [110896]. https://doi.org/10.1016/j.msec.2020.110896