This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammation & Repair, Subject name: Pathology
Interleukin secreted by Th17 cells 
Select and explain. 
A. IFN Gamma, B. IL22, C. IL6, D. 1L16
B: IL22
Answer: B: IL22 
Explanation: Ans. (b) IL22(Ref: Immunity 2008 Apr. 28(4): 454-467IL-22 is one of the IL-10 family cytokines, which also include IL-10, IL-19, IL-20, IL-24, and IL-26, as well as more distally related IL-28 and IL-29.It has a role in autoimmune diseases, tissue-repair and wound-healing apart from being proinflammatory