The invention discloses a miRNA marker for diagnosing and treating
colorectal cancer and application of the miRNA marker in preparation of medicines for preventing and treating
colorectal cancer, and belongs to the technical field of biological medicines. The miRNA is selected from one or more of the following components: hsa-miR-4488, hsa-miR-4525, hsa-miR-3130-3p, hsa-miR-6805-5p, hsa-miR-365b-3p, hsa-miR-3529-3p, hsa-miR-1255b-5p, hsa-miR-23b-3p, hsa-miR-652-5p, and hsa-miR-514b-5p, and the miRNA is selected from one or more of the following components: a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, the invention also provides application of the miRNA as a
colorectal cancer detection or treatment target. The novel miRNA has the beneficial effects that the novel miRNA can be used as a colorectal
cancer detection or treatment target, and whether a subject suffers from the colorectal
cancer or is at the risk of colorectal
cancer can be diagnosed by measuring the expression level of the miRNA. The diagnosis efficiency of the colorectal cancer is improved, and a new treatment target is provided for treating the colorectal cancer. The invention provides the application of
liquiritin in preparation of medicines for preventing and treating colorectal cancer by regulating the expression quantity of miRNA or miR-23b, provides a new medical application of
liquiritin, has better application prospect and medical value, and provides a new research direction for treatment of colorectal cancer.