background: dendritic cells (dcs), as the managers of the immune response, have a crucial role in forming the direction and nature of the immune response. some compounds such as 1,25-dihydroxycholecalciferol affect the function of dcs and can be used to shift the immune functions toward favorite directions. the aim of this study was to investigate the in vivo effects of 1, 25- dihydroxycholecal...