DSS exposure resulted in a survival rate of 43.7%, whereas the survival rate of mice with DSS-induced colitis was significantly improved in the low-dose IL-2 groups (the survival rates for 16K IU/day and 32K IU/day recombinant IL-2-groups were 88.9% and 68.0%, respectively) (Figure 1B). The gene discussed is IL2; the disease is colitis.