Transfection article 146 priority journal 140 Animals 106 nonhuman 102 Humans 92 controlled study 92 genetic transfection 84 animal cell 78 human 76 Mice 70 human cell 64 Cell Line 58 mouse 50 protein expression 50 Cell Line, Tumor 40 RNA, Messenger 40 messenger RNA 40 metabolism 40 Transcription, Genetic 38 Animalia 36 unclassified drug 36 promoter region 34 Promoter Regions (Genetics) 32 protein protein interaction 32 transcription regulation 32 gene expression 30 Blotting, Western 28 Genes 28 Molecular Sequence Data 28