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. Author manuscript; available in PMC: 2016 Feb 28.
Published in final edited form as: J Control Release. 2015 Jan 7;200:179–187. doi: 10.1016/j.jconrel.2015.01.003

Figure 2.

Figure 2

Sensitivity of the MSC-TKSR39-Luc, MSC-TK007-Luc, MSC-NTR-Luc and MSC-yCD: UPRT-Luc clones to prodrugs as measured by a cell toxicity assay. Naïve unmodified MSCs which do not express any suicide gene were used as control.