Improving the viability of tissue-resident stem cells using an organ-preservation solution

Takaya Suzuki, Chiharu Ota, Naoya Fujino, Yukiko Tando, Satoshi Suzuki, Mitsuhiro Yamada, Takashi Kondo, Yoshinori Okada, Hiroshi Kubo

Research output: Contribution to journalArticlepeer-review

Abstract

Human clinical specimens are a valuable source of tissue-resident stem cells, but such cells need to be collected immediately after tissue collection. To extend the timescale for collection from fresh human samples, we developed a new extracellular fluid (ECF)-type preservation solution based on a high-sodium and low-potassium solution containing low-molecular-weight dextran and glucose, which is used for preservation of organs for transplantation. In this study, we compared the preservation of tissue-resident stem cells using our ECF solution with that using three other solutions: PBS, Dulbecco’s modified Eagle’s medium and Euro-Collins solution. These solutions represent a common buffer, a common culture medium and a benchmark organ-preservation solution, respectively. Lung tissues were removed from mice and preserved for 72 h under low-temperature conditions. Of the solutions tested, only preservation in the ECF-type solution could maintain the proliferation and differentiation capacity of mouse lung tissue-resident stem cells. In addition, the ECF solution could preserve the viability and proliferation of human alveolar epithelial progenitor cells when stored for more than 7 days at 4 °C. The mean viability of human alveolar type II cells at 2, 5, 8 and 14 days of low-temperature preservation was 90.9%, 84.8%, 85.7% and 66.3%, respectively, with no significant differences up to 8 days. Overall, our findings show that use of our ECF-type preservation solution may maintain the viability and function of tissue-resident stem cells. Use of this preservation solution may facilitate the investigation of currently unobtainable human tissue specimens for human stem cell biology.

Original languageEnglish
Pages (from-to)2093-2104
Number of pages12
JournalFEBS Open Bio
Volume9
Issue number12
DOIs
Publication statusPublished - 2019 Dec 1

Keywords

  • mesenchymal stem cell
  • organ preservation
  • preservation solution
  • progenitor cell
  • stem cell
  • tissue transport

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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