In addition to T cells,which cell type is required for initiation of all T cell-mediated immune responses?
A)Effector cells
B)Memory cells
C)Natural killer cells
D)Antigen-presenting cells
E)B lymphocytes

Question

Quizplus · Accepted Answer

T cell-mediated immune responses are initiated when naive T cells are activated.Antigen-presenting cells,such as dendritic cells,are required to display antigens (peptide-MHC molecule complexes)for naive T cell recognition and to express costimulatory molecules also needed for T cell activation.Memory cells,cytotoxic T cells,and B lymphocytes are not involved in the initial activation of naive T lymphocytes.

In Addition to T Cells,which Cell Type Is Required for Initiation