DOI: 10.1101/339341Jun 5, 2018Paper

TGFβ1-induced cell motility is mediated through Cten in colorectal cancer

BioRxiv : the Preprint Server for Biology
Abdulaziz AsiriMohammad Ilyas


Cten is a tensin which promotes epithelial-mesenchymal transition (EMT) and cell motility. The precise mechanisms regulating Cten are unknown, although Cten could be regulated by several cytokines and growth factors. Since Transforming growth factor beta 1 (TGF-β1) regulates integrin function and promotes EMT / cell motility, we investigated whether this happens through Cten signalling in colorectal cancer (CRC). TGF-β1 signalling was modulated by either stimulation or knockdown in the CRC cell lines SW620 and HCT116. The effect of this modulation on expression of Cten, EMT markers and cellular function was tested. Cten role as a direct mediator of TGF-β1 signalling was investigated in a CRC cell line with a deleted Cten gene (SW620ΔCten). When TGF-β1 was stimulated or inhibited, this resulted in, respectively, upregulation and downregulation of Cten expression and EMT markers. Cell migration and invasion were significantly increased following TGF-β1 stimulation and lost by TGF-β1 knockdown. TGF-β1 stimulation in W620ΔCten> resulted in selective loss of the effect of TGF-β1 signalling on EMT and cell motility whilst the stimulatory effect on cell proliferation was retained. These data suggested Cten may play an essential role i...Continue Reading

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