has subject area Animals Animals, Newborn B-Lymphocyte Subsets Cells, Cultured Dendritic Cells Down-Regulation Immunity, Innate Interleukin-12 Subunit p40 Lipopolysaccharides Mice Mice, Inbred A Mice, Inbred BALB C Mice, Inbred C57BL Mice, Knockout Skin Transplantation Spleen Toll-Like Receptors Up-Regulation