title: Transforming growth factor-β (TGF-β) activates cytosolic phospholipase A2α (cPLA2α)-mediated prostaglandin E2 (PGE)2/EP1 and peroxisome proliferator-activated-γ (PPAR-γ)/Smad signaling pathways in human liver cancer cells. A novel mechanism for subversion of tgf-β-induced mitoinhibition.