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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2014 Dec 24;91(3):621–630. doi: 10.1016/j.ijrobp.2014.10.047

Figure 4.

Figure 4

(A) Proliferation of tumor EC 3 days after withdrawal of VEGF (No VEGF), RT (6 Gy), and/or low dose doxorubicin (Dox, 0.005 μM). (B) Colony formation of tumor EC 14 days after withdrawal of VEGF (No VEGF), RT (0, 2, 4 and 6 Gy), and/or low dose doxorubicin (Dox, 0.005 μM). (C) Immunofluorescence photos of Comet assay, γH2AX expression, and cleaved caspase 3. Experiments were performed in normoxia (21% O2) and hypoxia (1% O2). *p<0.05 compared to all other groups.