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Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Hematopoietic recovery of acute radiation syndrome by human superoxide dismutase-expressing umbilical cord mesenchymal stromal cells.
Cytotherapy 2015 April
BACKGROUND AIMS: Acute radiation syndrome (ARS) leads to pancytopenia and multi-organ failure. Transplantation of hematopoietic stem cells provides a curative option for radiation-induced aplasia, but this therapy is limited by donor availability.
METHODS: We examined an alternative therapeutic approach to ARS with the use of human extracellular superoxide dismutase (ECSOD)-modified umbilical cord mesenchymal stromal cells (UCMSCs). This treatment combines the unique regenerative role of UCMSCs with the anti-oxidative activity of ECSOD.
RESULTS: We demonstrated that systemically administered ECSOD-UCMSCs are able to protect mice from sub-lethal doses of radiation and improve survival by promoting multilineage hematopoietic recovery. The therapeutic effect of this treatment is related to the decrease in radiation-induced O(2)(-) and apoptosis.
CONCLUSIONS: Our data highlight the clinical potential of this two-pronged approach to the treatment of ARS, thereby serving as a rapid and effective first-line strategy to combat the hematopoietic failure resulting from a radiation accident, nuclear terrorism and other radiologic emergencies.
METHODS: We examined an alternative therapeutic approach to ARS with the use of human extracellular superoxide dismutase (ECSOD)-modified umbilical cord mesenchymal stromal cells (UCMSCs). This treatment combines the unique regenerative role of UCMSCs with the anti-oxidative activity of ECSOD.
RESULTS: We demonstrated that systemically administered ECSOD-UCMSCs are able to protect mice from sub-lethal doses of radiation and improve survival by promoting multilineage hematopoietic recovery. The therapeutic effect of this treatment is related to the decrease in radiation-induced O(2)(-) and apoptosis.
CONCLUSIONS: Our data highlight the clinical potential of this two-pronged approach to the treatment of ARS, thereby serving as a rapid and effective first-line strategy to combat the hematopoietic failure resulting from a radiation accident, nuclear terrorism and other radiologic emergencies.
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