Dose-Response (Dec 2019)

Radiation Responses of Human Mesenchymal Stem Cells Derived From Different Sources

  • Ningning He,
  • Changyan Xiao,
  • Yuxiao Sun,
  • Yan Wang,
  • Liqing Du,
  • Yu Feng,
  • Yang Liu,
  • Qin Wang,
  • Kaihua Ji,
  • Jinhan Wang,
  • Manman Zhang,
  • Chang Xu,
  • Qiang Liu

DOI
https://doi.org/10.1177/1559325819893210
Journal volume & issue
Vol. 17

Abstract

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Mesenchymal stem cells (MSCs) derived from different tissues may aid in the regeneration of radiation-induced organ lesions; however, the radiation responses of human MSCs from different sources are unknown. In our study, a comparison of the results from cell proliferation, apoptosis, cell cycle, DNA damage, and DNA repair assays consistently showed that MSCs derived from adipose tissue possess a significantly stronger radiation resistance capacity than MSCs derived from umbilical cord and gingival, which is accompanied by a higher level of phosphorylated signal transducer and activator of transcription 3 (Stat3) expression. This reminds us Stat3 could be a potential biomarker of radiation resistance. These findings provide a better understanding of radiation-induced biologic responses in MSCs and may lead to the development of better strategies for stem cell treatment and cancer therapy.