EGFR and pancreatic neoplasm: Since pancreatic cancer cell lines expressed very low levels of the TAp63 isoform, and since we found no correlation between ΔNp63α and TAp63γ expression in those cell lines (Fig. 1A), the dominant negative effect of ΔNp63α was an unlikely explanation of the changes in EGFR and 14-3-3σ expression.