Clearance kinetics of biomaterials affects stem cell retention and therapeutic efficacy

Chia Y. Lai, Pei J. Wu, Steve R. Roffler, Sho T. Lee, Shiaw M. Hwang, Shoei S. Wang, Kuan Wang, Patrick C.H. Hsieh

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


The use of biomaterial carriers to improve the therapeutic efficacy of stem cells is known to augment cell delivery, retention, and viability. However, the way that carrier clearance kinetics boosts stem cell delivery and impacts stem cell function remains poorly characterized. In this study, we designed a platform to simultaneously quantify carrier clearance and stem cell retention to evaluate the impact of carrier clearance kinetics on stem cell retention. Additionally, a murine model of hindlimb ischemia was employed to investigate the effects of various cell retention profiles on mitigating peripheral arterial disease. To image the in vivo behaviors of material and cells, we used biotinylated hyaluronan with fluorescently labeled streptavidin and Discosoma sp. Red (Ds-Red)-expressing human mesenchymal stem cells. We found that the retention of transplanted stem cells was closely related to the remaining biomaterial. Furthermore, therapeutic effectiveness was also affected by stem cell retention. These results demonstrate that low-molecularweight hyaluronan had a slow clearance and high cell retention profile, improving the therapeutic efficacy of human stem cells.

Original languageEnglish
Pages (from-to)564-573
Number of pages10
Issue number2
Publication statusPublished - Feb 10 2014
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Biomaterials
  • Polymers and Plastics
  • Materials Chemistry


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