Abstract

Exosomes (Exo) have emerged as potent amplifiers of pro-tumorigenic signals to distant cells. The knowledge of their role in colorectal cancer (CRC) is continuously up-growing, although their contribution to metastasis remains largely unclear. Liu et al. (Clinical Science (2020) 134, https://doi.org/10.1042/CS20191087) in their work have described a novel mechanism by which CRC-derived Exo promote metastasis through the down-regulation of the deleted in liver cancer-1 (DLC-1), a gene involved in the epithelial-to-mesenchymal transition (EMT) event in cancer cells. The Authors also demonstrated an increase in serum exosomal miR-106b-3p in patients with metastatic CRC, suggesting its potential implication as a prognostic biomarker. These findings may be of great effort in clarifying the underlying mechanisms of CRC metastasis and provide new targets for future researches.

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