CLDN1 and neoplasm: Though H226 cells exhibited morphological changes similar to those observed in UM-UC-5 cells, such as the formation of actin stress fibres, following treatment with the supernatants of tumour cell-platelet reactants, EMT marker expression profile in H226 cells already indicated a mesenchymal-like status including low-level expression levels of E-cadherin and Claudin-1 and high-level expression level of N-cadherin.