A client's cell-mediated immune response has resulted in the release of regulator T cells. These cells will perform which of the following roles?
A) Suppressing the immune response to limit proliferation of potentially harmful lymphocytes
B) Presenting antigens to B cells to facilitate the production of antibodies
C) Differentiating into subpopulations of helper T cells
D) Destroying target cells by releasing cytolytic enzymes and other toxins
Ans: A
Feedback:
Regulatory T cells suppress immune responses by inhibiting the proliferation of other potentially harmful self-reactive lymphocytes. They do not present antigens to B cells, and activated CD4+ T cells differentiate into subpopulations of other helper T cells. Cytotoxic T cells participate in the active destruction of target cells.
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