Sulfatase 2-Induced Carcinoma-Associated Fibroblasts Promoted Epithelial-to-Mesenchymal Transition of Hepatocellular Carcinoma Cells by Upregulating SNAI1 and Activating the SDF-1/CXCR4 Signaling Pathway. The gene discussed is CXCR4; the disease is hepatocellular carcinoma.