The qPCR analysis indicated that while the expression of IL‐10 increased, the expression of Type I collagen, α‐Sma, and Timp1 significantly decreased both in the Ad‐IL10 group and the Ad‐IL10 + CMC group, compared with that in the fibrosis model group, although the decrease in the Ad‐IL10 + CMC group was more pronounced than that in the Ad‐IL10 group (Figure S5C). The gene discussed is TIMP1; the disease is fibrosis.