To confirm the hypothesis that PTX3 may affect primary cilium length via the FGF/FGFR system in cancer cells, we measured the length of primary cilium in TRAMP-C2 cells stably transfected with the N-terminal hPTX3 cDNA (N-term-hPTX3-TRAMP-C2 cells) or with the C-terminal hPTX3 cDNA (C-term-hPTX3-TRAMP-C2 cells) [37]. This evidence concerns the gene PTX3 and cancer.