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Questions and Answers
What are the major subsets of CD4+ effector T cells?
What are the major subsets of CD4+ effector T cells?
- Th1 and Treg cells
- Th1 and Th2 cells (correct)
- Treg and Th17 cells
- Th2 and Th17 cells
How do CD8+ CTLs kill cells infected with viruses?
How do CD8+ CTLs kill cells infected with viruses?
- By releasing perforin and granzymes (correct)
- By triggering phagocytosis of infected cells
- By secreting cytokines to induce cell death
- By inducing apoptosis through Fas-FasL interaction
What are the mechanisms by which T cells activate macrophages?
What are the mechanisms by which T cells activate macrophages?
- Production of tumor necrosis factor
- Secretion of interleukin-4
- Expression of CD40 ligand
- Release of interferon-gamma (correct)
Which cytokines are associated with Th1 cells?
Which cytokines are associated with Th1 cells?
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What are the roles of Th2 cells in defense against pathogens?
What are the roles of Th2 cells in defense against pathogens?
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What is the primary function of CD4+ Treg cells?
What is the primary function of CD4+ Treg cells?
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What is the response of macrophages that result in the killing of ingested microbes?
What is the response of macrophages that result in the killing of ingested microbes?
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How do CD4+ cells play a role in killing cells infected with viruses?
How do CD4+ cells play a role in killing cells infected with viruses?
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Which cytokines play a role in the activation of macrophages by T cells?
Which cytokines play a role in the activation of macrophages by T cells?
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What are the types of T lymphocyte–mediated immune reactions that eliminate microbes sequestered in phagocyte vesicles or infected host cells?
What are the types of T lymphocyte–mediated immune reactions that eliminate microbes sequestered in phagocyte vesicles or infected host cells?
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