Which of the Following Is a Feature of Regulatory T

question 31

Multiple Choice

Which of the following is a feature of regulatory T cells (T_reg) ? (Select all that apply.)

• A)T_reg express CD8 and control effector cells by inducing apoptosis.
• B)T_reg express high levels of CD25 (IL-2 receptor α chain)and secrete pro-inflammatory cytokines such as IFN-γ.
• C)Physical association between T_reg and their target cells is mandatory for T_reg function.
• D)By interacting with dendritic cells in secondary lymphoid tissue,T_reg prevent the interaction and activation of naive T cells.
• E)T_reg secrete TGF-β and suppress effector T-cell function.

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