Summary
Several studies have previously demonstrated tissue factor (TF) expression in solid
tumors. In our study, we evaluated by immunohistochemical staining TF expression in
79 cases of colorectal cancer and 17 cases of metastatic cancer of the liver from
colorectal cancer, and investigated the relationship between the clinicopathological
features and TF expression.
TF was detected in the tumor of 57% of colorectal cancer patients, and its expression
was significantly increased (p = 0.01) in metastatic tumors (88%). TF expression was
more commonly observed in meta-static tumors than in any Dukes’ stage of primary cancer.
In primary cancer, the detection of TF was more frequent in cases with lymph node
metastasis (Dukes’ C, 63%) or with hematogenous metastasis (Dukes’ D, 82%) than in
tumors without lymph node or hematogenous metastasis (Dukes’ A and B, 46%, p = 0.03).
These results suggest that the expression of TF is related with the metastatic potential
of colorectal cancer.