Types of antigen presenting cell and their main roles?

Expresses MHC I and MHC II - dendritic cells Antigen presentation to naive T cells in the initiation of T cell responses to protein antigens. - macrophages Antigen presentation to CD4+ effector T cells in the effector phase of cell mediated immune responses. - B lymphocytes Antigen presentation to CD4+ helper Tcells in humoral immune responses.( T cell-B cell interactions).