The TGFβ family of cytokines has been shown to promote EMT during cancer progression [31], [34], [35] and this is in accordance with the present study showing a strong down-regulation of Tgfβ1, Tgfβ2 and the receptors Tgfβr1 and 2 (Table 2) after HBO treatment. Here, TGFB2 is linked to cancer.