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Cardiac glycoside | Antitumor activity in mice xenografted with human cancer cells | Selective cytotoxicity against human cells versus rodent cells | Selective cytotoxicity against human cancer cells versus human nonmalignant cells |
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Arenobufagin | Liver HepG2/ADM [28] | N.D. | N.D. |
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Bufalin | Breast MDA-MB-231 [19], osteosarcoma U2OS/MTX300 [50], and pancreatic Mia Paca-2 [49] | >1000-fold [29] | NO: breast cancer versus breast nonmalignant [23]; 10-fold: ovarian cancer versus endometrial nonmalignant [53] |
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Bufotalin | Liver R-HepG2 [51] | >100-fold [54] | N.D. |
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Digitoxin | N.D. | >1000-fold [29]; >700-fold [24]
| 10-fold: lung cancer versus lung nonmalignant [24]; 3-fold: lung cancer versus lung nonmalignant [55]; 7-fold: ALL versus PBMCs nonmalignant [15]; 4-fold: AML versus PBMCs nonmalignant [15]; 2-fold: CLL versus PBMCs nonmalignant [15]; 2-fold: breast cancer versus breast nonmalignant [24]; NO: breast cancer versus breast nonmalignant [23]; NO: skin cancer versus skin nonmalignant [24] |
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Digoxin | Brain SH-SY5Y [33], brain SK-N-AS [33], breast MDA-MB-231 [36, 37], breast MDA-MB-435 [35], liver Hep3B [17], prostate PC3 [17], prostate PPC-1 [34], and transformed human B-lymphocytes P493-Myc [17] | >1000-fold [24, 29] | NO: breast cancer versus breast nonmalignant [24]; 8- fold: lung cancer versus lung nonmalignant [24]; NO: skin cancer versus skin nonmalignant [24]; 8-fold: brain cancer versus umbilical vein endothelial nonmalignant [33]; NO: breast cancer versus umbilical vein endothelial nonmalignant [33]; NO: colorectal cancer versus umbilical vein endothelial nonmalignant [33] |
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Lanatoside C | Brain U87 [48] | >100-fold [29] | N.D. |
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Ouabain | Brain SH-SY5Y [27], ocular Y79LUC [39], pancreatic BON1 [40], promyelocytic leukemia HL-60 [18], and prostate PPC-1 [40] | >1000-fold [24, 29, 44] | NO: breast cancer versus breast nonmalignant [23, 24]; 5- fold: lung cancer versus lung nonmalignant [24]; NO: skin cancer versus skin nonmalignant [24]; 2-fold: ALL versus PBMCs nonmalignant [15]; 2-fold: AML versus PBMCs nonmalignant [15]; NO: CLL versus PBMCs nonmalignant [15] |
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Periplocin | Liver Huh-7 [47] and lung A549 [46] | >1000-fold [47]*; NO: [46] | >1000-fold: liver cancer versus PBMCs nonmalignant [47]* |
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UNBS1450 | Brain U373-MG [44], lung A549 [41, 42], lung NCI-H727 [41, 42], prostate PC-3 [43], and skin VM-48 [45] | >100-fold [44] | 10-fold: brain cancer versus lung and skin nonmalignant [44]; 100-fold: prostate cancer versus lung and skin nonmalignant [43] |
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