TFG and cervical carcinoma: Figure S1 shows the outcome of a transient knockout of TFG using this approach, but we have been unable to amplify cells showing this phenotype. Figure 1 demonstrates an effective knockdown of TFG expression in three human cell lines used in this study: HeLa (cervical carcinoma), RPE-1 (telomerase immortalized retinal pigment epithelial cells), and IMR-90 (fibroblasts) cells.