XPO1 and neoplasm: XPO1 protein levels were assessed in 4 MIBC tumor derived cell lines (T24, TCCSUP, J82, and UM-UC-3) and in a non-transformed but immortalized bladder epithelial cell line (SV-HUC1) by immunofluorescence (IF) and western blot analyses (Figure 1C and 1D).