試題詳解

複選題
37. Which of the following statements are correct? (Select all that apply.)
(A) Naive I cells differentiate into effector T cells after T cell priming has occurred
(B) Naive T cells being activated by specific antigen receive co-stimulatory signals through CD28
(C) Dendritic cells can process and present antigen in the context of either MHC class I or MHC class II
(D) Regulatory CD4 T cells are generated during antigen/MHC recognition in the absence of co-stimulation
(E) The frequency of antigen-specific naive and memory CD8 T cells specific for an antigen are the same after infection with a pathogen containing that antigen