We assessed the effect of the adoptive transfer of NK cells on the proportion and function of NK cells and the degree of liver fibrosis RT-qPCR showed that the relative expression levels of α-SMA and fibronectin were significantly lower in both Tigit-/- and WT NK cell adoptive transfer groups than in the control group at 6 weeks post infection. Here, FN1 is linked to Hepatic fibrosis.