Additionally, almost all mice bearing tumour induced by HT29-Snail cells that were also injected with EVs released from HT29-Snail cells, presented the appearance of early interstitial pneumonias (Table 1, group VI), while injection of HT29-pcDNA-EV had no effect (Table 1, group V and IV, respectively). The gene discussed is SNAI1; the disease is neoplasm.