lymphocyte activation Lymphocyte Activation 40 immunology 32 human 30 Humans 26 gamma interferon 26 article 24 controlled study 24 cytokine production 20 human cell 20 metabolism 20 priority journal 20 Signal Transduction 18 Animals 16 animal 16 dendritic cell 16 in vitro study 16 signal transduction 16 Article 14 Cells, Cultured 14 Female 14 T lymphocyte 14 cell culture 14 female 14 interleukin 4 14 natural killer cell 14 nonhuman 14 upregulation 14 Dendritic Cells 12 Interferon-gamma 12