TCF4 and neoplasm: We found two deleted regions shared by both tumor types in three out of the four cell lines H23R, A2780R, and OVCAR3R, but not in H460 cells, located on 18q21.2–18q21.31 and 18q21.32, affecting the genes RAB27B, CCDC68, TCF4, TXNL1, WDR7, and BOD1P; and genes ZNF532, SEC11C, GRP, respectively (Figure 1 and Figure S1A).