Homeodomain Proteins/immunology; Interleukin-2/genetics; Kruppel-Like Transcription Factors/immunology; Repressor Proteins/immunology; T-Lymphocytes/metabolism; Alcohol Oxidoreductases; Animals; Binding Sites/immunology; Cell Line, Tumor; Co-Repressor Proteins; DNA-Binding Proteins/immunology; DNA-Binding Proteins/metabolism; Feedback, Physiological/genetics; Feedback, Physiological/immunology; Histone Deacetylase 1; Histone Deacetylases/immunology; Histone Deacetylases/metabolism; Homeodomain Proteins/genetics; Homeodomain Proteins/metabolism; Homeostasis/immunology; Interleukin-2/immunology; Interleukin-2/metabolism; Kruppel-Like Transcription Factors/genetics; Kruppel-Like Transcription Factors/metabolism; Mice; Mice, Inbred C57BL; Phosphoproteins/immunology; Phosphoproteins/metabolism; Promoter Regions, Genetic/immunology; Protein Binding; Protein Interaction Domains and Motifs/immunology; Repressor Proteins/genetics; Repressor Proteins/metabolism; T-Lymphocytes/immunology; Transcriptional Activation/genetics; Transcriptional Activation/immunology; Transfection; Transgenes; Zinc Finger E-box-Binding Homeobox 1