apoptosis human 134 Article 109 Humans 107 Apoptosis 101 controlled study 97 metabolism 87 nonhuman 68 human cell 66 cell proliferation 64 genetics 61 unclassified drug 56 Animals 52 animal 51 male 46 pathology 46 gene expression 41 protein expression 41 female 40 Cell Line, Tumor 39 Cell Proliferation 39 mouse 38 drug effect 37 tumor cell line 37 chemistry 35 upregulation 35 in vitro study 34 Male 33 Western blotting 33 animal experiment 33