apoptosis human protein expression 116 Humans 102 controlled study 90 human cell 82 Apoptosis 76 priority journal 76 article 68 nonhuman 54 signal transduction 52 metabolism 50 cell proliferation 48 female 44 Animals 42 Cell Line, Tumor 42 Female 38 cell survival 38 genetics 32 protein bcl 2 32 Mice 30 animal cell 30 mouse 30 Article 28 Cell Proliferation 28 male 28 protein function 28 Signal Transduction 26 protein phosphorylation 26 tumor cell line 26