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. 2017 Jul 20;7:5987. doi: 10.1038/s41598-017-05553-0

Figure 2.

Figure 2

TNF-α secretion by γδ T cells stimulated with tumor cells pretreated with BP prodrugs and their acids. TNF-α production by γδ T cells in response to EJ-1 bladder cancer cells pretreated with various concentrations of bisphosphonate prodrugs was compared with that in response to EJ-1 bladder cancer cells pretreated with their corresponding acids: (A) compounds 3 (⚫) and 10 (⚪), (B) 5 (⚫) and 12 (⚪), (C) 6 (⚫) and 13 (⚪), (D) 7 (⚫) and 14 (⚪).