Transforming growth factor-β1 (TGF-β1) can combine with the TGF-beta receptor 2 (TGFβR2) to activate the TGFβ signal pathway which has been suggested to be an important regulator of proliferation, apoptosis, epithelial-to-mesenchymal transition (EMT) and metastasis in various cancers [6]–[8]. Here, TGFB1 is linked to cancer.