The Cancer Comparative Index (CCI) [39], the ratio of the Fn/c of the protein in tumour compared to normal cells (where a CCI greater than 1 denotes increased nuclear accumulation in tumour cells), was 1.7 for GFP-tNTS (Figure 1D), consistent with previous observations [16,39], whilst GFP-H3 had a CCI of c. Here, FN1 is linked to neoplasm.