FAS and Fulminant hepatic failure: TNF-alpha and Fas (CD95) binding Fas ligand (FasL) expression are activated in fulminant hepatic failure by CD8+-cells, NK-cells, and KCs (Miyagawa-Hayashino et al., 2007; Malhi and Gores, 2008) and share common molecular pathways of instigation of apoptosis (Tacke et al., 2009).