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<p>An integrated microfluidic platform has been developed for the efficient generation of highly uniform alginate hydrogel microspheres (AHMs) encapsulating HeLa cells, enabling robust three dimensional (3D) cell culture and subsequent infection with Coxsackievirus B3 expressing enhanced green fluorescent protein (CVB3-eGFP). Our results demonstrate that AHMs support high cell viability and facilitated cell proliferation within a biomimetic 3D matrix. By systematically reducing the alginate concentration from 1.0% to 0.6%, we enhanced viral accessibility while maintaining microstructural integrity, thereby significantly improving CVB3-eGFP infection rates, as confirmed by fluorescence imaging and western blot analysis. This study establishes a tunable, reproducible, and physiologically relevant 3D model for studying virus–host interactions, with broad applications in antiviral drug screening and infectious disease modeling.</p> Graphical Abstract <p></p>

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3D alginate hydrogel microspheres with uniform micro-structure for cell culture and CVB3 infection

  • 期刊论文

  • 发表日期：

    2026年2月10日

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  • Tianyi Zhang,
  • Yuqing Xu,
  • Yiwei Sun,
  • Kun Ye,
  • Jiarong Liu,
  • Rui Zhang,
  • Sirong Yu,
  • Ziqiao Wang,
  • Min Li,
  • Hua Wang,
  • Hongxing Shen,
  • Xiaoxiang Zhou

摘要

An integrated microfluidic platform has been developed for the efficient generation of highly uniform alginate hydrogel microspheres (AHMs) encapsulating HeLa cells, enabling robust three dimensional (3D) cell culture and subsequent infection with Coxsackievirus B3 expressing enhanced green fluorescent protein (CVB3-eGFP). Our results demonstrate that AHMs support high cell viability and facilitated cell proliferation within a biomimetic 3D matrix. By systematically reducing the alginate concentration from 1.0% to 0.6%, we enhanced viral accessibility while maintaining microstructural integrity, thereby significantly improving CVB3-eGFP infection rates, as confirmed by fluorescence imaging and western blot analysis. This study establishes a tunable, reproducible, and physiologically relevant 3D model for studying virus–host interactions, with broad applications in antiviral drug screening and infectious disease modeling.

Graphical Abstract