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. Author manuscript; available in PMC: 2010 Aug 1.
Published in final edited form as: Cancer Gene Ther. 2009 Sep 18;17(2):86–96. doi: 10.1038/cgt.2009.60

Table 1.

In vitro cytotoxicity and bystander response of rat C6 glioma cells expressing wild type, mutant HSVTKs, wild type fusion or mutant fusion constructs to GCV.

GCV IC50 (μM) Relative to HSVTK Percentage of cell killing achieved with ∼5% cell transfection
pUB 50 1 N.A
pUB:MGMK 65 0.77 N.A
pUB:HSVTK 50 1 N.D
pUB:30 0.4 125 23%
pUB:SR39 0.02 2,500 46%
pUB:MGMK/HSVTK 0.5 100 45%
pUB:MGMK/30 0.004 12,500 72%
pUB:MGMK/SR39 0.02 2,500 71%

N.A = Not Available

N.D = Not Detected