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. 2014 Jan 28;20(4):908–922. doi: 10.3748/wjg.v20.i4.908

Figure 3.

Figure 3

Environmental triggers, such as diet, aging and pathogen infections, can force microbiota changings that, in a genetically susceptible host, can drive to chronic inflammation in the gut. Inflammation shifts the gut microbiota towards a pro-inflammatory configuration, supporting colorectal cancer (CRC) drivers as pathobionts at the expense of health-promoting CRC-protective microbiota components. As a consequence, a pro-inflammatory loop is established in the gut, directly supporting CRC onset and favoring colonization by toxigenic bacterial drivers directly involved in CRC promotion.