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← Human Body & HealthA previously healthy individual receives a kidney transplant. Despite initial immune suppression, chronic rejection occurs over several years. Why does this rejection process accelerate despite ongoing immunosuppression?
A)Donor antigen presentation halts quickly
B)Innate immune cells become tolerant
C)T-regulatory cells maintain stable tolerance
D)Antibody-mediated injury amplifies inflammation✓
💡 Explanation
The rejection accelerates because antibody-mediated injury amplifies inflammation through complement activation and Fc receptor engagement on innate immune cells, therefore increasing tissue damage. This process circumvents initial T-cell suppression, rather than being directly controlled by T-cells; because the antibody production sustains inflammation, rather than antigen halting.
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