The upregulation of FGFR2 in liver fibrosis patients was confirmed by various methods, including immunohistochemistry (IHC) (Figure 1C), Western blot quantification (Figure 1D), and reverse transcription quantitative real-time PCR (RT-qPCR) quantification (Figure 1E) on liver tissue samples collected from clinical volunteers. The gene discussed is FGFR2; the disease is Hepatic fibrosis.