Question

Which of the following is the suppressive cytokine?

• A. IL-1
• B. IL-2
• C. IL-10
• D. IL-12

Hint:

IL-10 is a key anti-inflammatory cytokine that suppresses immune responses and inflammation.

Answer 1

The Correct Option is C

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.