GATA6 and Hepatic fibrosis: Furthermore, the expression of peroxisome proliferator-activated receptor (PPAR)γ, GATA-binding factor 6 (GATA6), GATA4, and transcription factor 21 (TCF21) appears to play a role in regulating HSC reversion to an inactive state in liver fibrosis (Figure 2) 42-44.