Immunosuppressive Agents/metabolism; Phosphatidylserines/metabolism; Receptors, Cell Surface/metabolism; Adoptive Transfer; Animals; Bone Marrow Cells/cytology; Bone Marrow Cells/drug effects; Bone Marrow Cells/immunology; Cell Differentiation/drug effects; Cell Differentiation/immunology; Cell Movement/drug effects; Cell Movement/immunology; Cells, Cultured; Cytokines/antagonists & inhibitors; Cytokines/biosynthesis; Dendritic Cells/cytology; Dendritic Cells/drug effects; Dendritic Cells/immunology; Epitopes, T-Lymphocyte/immunology; Germinal Center/drug effects; Germinal Center/immunology; Germinal Center/metabolism; Hybridomas; Immune Sera/administration & dosage; Immune Sera/blood; Immunosuppressive Agents/administration & dosage; Injections, Subcutaneous; Lipopolysaccharides/pharmacology; Liposomes; Lymph Nodes/drug effects; Lymph Nodes/immunology; Lymph Nodes/pathology; Male; Mice; Mice, Inbred BALB C; Mice, Inbred C57BL; Mice, Transgenic; Oligodeoxyribonucleotides/pharmacology; Ovalbumin/administration & dosage; Ovalbumin/immunology; Phosphatidylserines/administration & dosage; Receptors, Cell Surface/immunology; Spleen/drug effects; Spleen/immunology; Spleen/metabolism; Stereoisomerism; T-Lymphocyte Subsets/immunology; T-Lymphocyte Subsets/pathology; T-Lymphocyte Subsets/transplantation