Step 1: Understanding Suppressive Cytokines
Suppressive cytokines help regulate the immune system by dampening immune responses and preventing excessive inflammation.
Step 2: Evaluating the Options
- IL-1: Pro-inflammatory cytokine, not suppressive.
- IL-2: Stimulates T-cell proliferation, pro-inflammatory.
- IL-10: Correct, IL-10 is an anti-inflammatory cytokine that suppresses immune responses.
- IL-12: Stimulates Th1 response, pro-inflammatory.
Step 3: Conclusion
IL-10 is the key suppressive cytokine in immune regulation.