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Cytokines are ________________

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in Cell Biology by (121k points)
Cytokines are ________________

(a) antigens

(b) proteins

(c) polysaccharides

(d) carbohydrates

The question was posed to me in exam.

This interesting question is from Immune Response topic in section Immune Response of Cell Biology

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The correct option is (b) proteins

The explanation: Cytokines are small proteins that work at low concentrations; secreted by a wide variety of cells and include interferons (IFs), interleukins (ILs), and tumor necrosis factors (TNFs). In addition to cell-cell contact, the T-cells also mediate their interactions by cytokines.

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