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Questions and Answers
What is the primary function of chemokines, a subset of cytokines?
What is the primary function of chemokines, a subset of cytokines?
- To inhibit immune cell growth
- To stimulate immune cell movement towards a target (correct)
- To facilitate immune cell differentiation
- To regulate immune cell death
Which type of cells primarily produce interleukins?
Which type of cells primarily produce interleukins?
- Epithelial cells
- Fibroblasts
- Leukocytes (WBC) (correct)
- Endothelial cells
What is the primary mechanism by which interferons protect cells from viral infections?
What is the primary mechanism by which interferons protect cells from viral infections?
- By enhancing immune cell migration
- By inhibiting viral replication (correct)
- By inducing inflammation
- By stimulating immune cell proliferation
Which of the following cytokines is not primarily involved in immune cell regulation?
Which of the following cytokines is not primarily involved in immune cell regulation?
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Which cell types are capable of secreting cytokines?
Which cell types are capable of secreting cytokines?
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Study Notes
Cytokines
- Small proteins that play a crucial role in controlling the growth and activity of immune cells and blood cells
- Produced by various cell types, including leukocytes and fibroblasts
Subtypes of Cytokines
- Chemokines: a subset of cytokines that facilitate the movement of immune cells towards a target
- Interleukins: produced by leukocytes and act on leukocytes (White Blood Cells)
- Interferons: "interfere" with viral replication by protecting cells from virus infections
- TNF (Tumor Necrosis Factor)
- Growth Factors
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