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. Author manuscript; available in PMC: 2013 Nov 27.
Published in final edited form as: Cancer Gene Ther. 2010 Aug 27;17(12):893–905. doi: 10.1038/cgt.2010.47

Figure 2.

Figure 2

Characterization of armed CRAds. A, B, MDA-MB-231 cells were infected with Ad5-Δ24-sOPG-Fc, Ad5-Δ24-sOPG-Fc-RGD or Adwt300. At the indicated times, cellular RNA was subjected to QRT-PCR to detect expression of: A, the sOPG-Fc gene (cells infected with Ad5-Δ24-sOPG-Fc or Ad5-Δ24-sOPG-Fc-RGD) or the 14.7k gene (cells infected with Adwt300); and B, the ADP gene. The copy number was normalized to total cellular RNA. C, Secretion of sOPG-Fc. MDA-MB-231 cells were infected with Ad5-Δ24, Ad5-Δ24RGD, Ad5-Δ24-sOPG-Fc or Ad5-Δ24-sOPG-Fc-RGD. At the indicated times, medium was harvested, diluted 1:300 and expression of sOPG-Fc was detected in an ELISA. D, sOPG-Fc binds RANKL. Medium from MDA-MB-231 cells 48 h postinfection was incubated in the presence (+) or absence (−) of sRANKL and pulled down with protein G-agarose. Proteins were released and subjected to immunoblot using anti-RANKL primary antibody. C: sRANKL.