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Human Body & Health

Why does chronic inflammation sometimes persist despite the presence of anti-inflammatory cytokines in tissues?

A)Increased pro-inflammatory cytokine half-life
B)Direct macrophage pro-inflammatory polarization shift
C)Regulatory T cell functional impairment
D)Reduced cytokine receptor expression on cells

💡 Explanation

Inflammation can persist if regulatory T cells, normally suppressing immune responses, become functionally impaired; because these cells lose their ability to effectively dampen inflammation, the anti-inflammatory cytokines become insufficient. Therefore, inflammation continues rather than being resolved by normal regulatory mechanisms.

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