After 7 days of the treatment with the MEISi-1 and MEISi-2, the UCB- and PB-MNCs were labeled with PE-conjugated anti-human CD34 (Biolegend, Cat.No. 343506), APC-conjugated anti-human CD133 (Miltenyibiotec, Order No. 130-090-826) antibodies as we have done previously14 (link),16 (link),25 . In addition, UCB mononuclear cells were treated with Aldefluor reagent according to the manufacturer’s manual (ALDEFLUOR™ Kit, Stemcell Technologies, Cat.No. 01700). The expressions of CD34, CD133 surface markers and ALDH (Aldehyde Dehydrogenase) enzyme activity in the labeled cells were analyzed by flow cytometry (BD FACSCalibur™, Cell Analyzer) as we have done previously14 (link),16 (link),25 .
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