apoptosis human 185 human cell controlled study 159 Humans 151 article 133 Apoptosis 128 priority journal 113 cell proliferation 76 protein expression 76 Cell Line, Tumor 74 metabolism 60 nonhuman 59 unclassified drug 55 signal transduction 52 Animals 48 Article 48 female 48 cell survival 44 in vitro study 44 Mice 42 cell death 41 caspase 3 40 mouse 40 Female 38 tumor cell line 37 male 36 Cell Proliferation 35 animal cell 35 drug effects 32