[Intestinal microbiota: a new target for early warning, prognosis prediction, prevention and treatment of colorectal cancer].

As the main composition of the gut microbiota, intestinal microbiota directly or indirectly regulate epigenetic modifications, a variety of metabolisms, mucosal and even systemic immune functions of the host, and exert a great influence on the biological behavior of colorectal cancer. Although the detailed mechanism of some enterobacteria involved in the progression of colorectal cancer remains unclear, they are possible markers for early warning and prognostic prediction of colorectal cancer, as well as potential targets for treatment and prevention, which provides us with new hope for the prevention and treatment of colorectal cancer.