The MTT assay was used to measure the effects of pamidronate, clodronate and mevastatin on the cell viability of Ewing's sarcoma cell lines 6647, CADO-ES-1, ES-2, ES-3, RD-ES, SK-ES-1, STA-ET-2.1 and VH-64. Treatment of these cells with pamidronateā¦