The invention discloses application of
trichoderma pseudokoningii exopolysaccharide in preventing and treating colon
cancer and application of a chemotherapeutic
drug combined with the
trichoderma pseudokoningii exopolysaccharide in treating the colon
cancer. The
trichoderma pseudokoningii exopolysaccharide (EPS) can significantly inhibit the growth of tumor masses in a mouse with the colon
cancer, and can improve mouse immune organ index and the levels of
interleukin-2 (IL-2) and
tumor necrosis factor-alpha (TNF-alpha) in mouse serum, increase the proportion of mouse cytotoxic T lymphocytes (CD8+T cells) in total
T lymphocyte calculation and significantly activate mouse T lymphocytes and B lymphocytes; therefore, the EPS has an effect on treating the colon cancer; and the EPS, when taken for a preventive purpose, can also effectively improve the antitumor capacity of a body. In addition, the EPS, when combined with an existing chemotherapeutic
drug, namely 5-
fluorouracil (5-FU), is significantly better than the single medication of the 5-FU in antitumor effect. Moreover, the EPS can improve the
life quality of the mouse with the colon cancer and can prolong the service life of the mouse.