T-cell activation requires antigen being displayed in the context of an APC and interaction between co-stimulatory molecules on the APC and the T cell. In addition to these two signals, T-cell activity is often influenced by cytokines. Which of the following is an example of how cytokines can influence T-cell activity in the presence of MHC presentation and co-stimulatory ligand interaction?

T-cell activation requires antigen being displayed in the context of an APC and interaction between co-stimulatory molecules on the APC and the T cell. In addition to these two signals, T-cell activity is often influenced by cytokines. Which of the following is an example of how cytokines can influence T-cell activity in the presence of MHC presentation and co-stimulatory ligand interaction?










A. CD28 causes memory NK cells to be produced.
B. CD8 triggers apoptosis in T cells that recognize self-antigens.
C. IL-2 triggers T-cell proliferation.
D. Opsonins recruit eosinophils to present carbohydrate antibodies to naïve TC cells.
E. TNF-a increases the production of IgM by activated T cells.













Answer: C


Biology

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