A prominent mucinous phenotype is observed in 10–15% of all colorectal cancers (CRCs). They are associated with a proximal location, and more commonly observed among tumors with mismatch repair defects and a promoter CpG methylator phenotype. However, none of these features has been clearly linked mechanistically to this mucinous subtype. Here, we propose that bacterial biofilms could represent a currently unappreciated contributor to mucinous CRC formation. The colonic microbiome and biofilms in particular, are emerging as important factors in tumor initiation and progression. Intriguingly, biofilms preferentially accompany proximal tumors, suggesting that there may be a direct mechanistic link with mucinous CRCs.

Additional Metadata
Keywords Biofilm, Colorectal cancer, Microbiome, Mucinous neoplasm, Mucus
Persistent URL dx.doi.org/10.1016/j.bbcan.2019.05.009, hdl.handle.net/1765/117316
Journal BBA - Reviews on Cancer
Li, S. (Shan), Peppelenbosch, M.P, & Smits, M.J.M. (2019). Bacterial biofilms as a potential contributor to mucinous colorectal cancer formation. BBA - Reviews on Cancer (Vol. 1872, pp. 74–79). doi:10.1016/j.bbcan.2019.05.009