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Combined expression of urokinase-type plasminogen activator and proliferating cell nuclear antigen at the deepest invasive portion correlates with colorectal cancer prognosis

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To examine the relationship among the expression of urokinase-type plasminogen activator (u-PA), invasive/metastatic potential and prognosis of colorectal cancer (CRC), 58 patients with surgically resected advanced CRC were studied. u-PA expression and proliferating cell nuclear antigen labeling index (PCNA-LI) at the deepest invasive portion were examined immunohistochemically. u-PA expression was detected in 37 (63.8%) of 58 lesions. Lesions with liver metastasis showed a significantly (p < 0.01) higher incidence of u-PA expression than those without liver metastasis. Dukes staging also revealed a significant correlation with u-PA expression. The combination of u-PA expression and elevated PCNA-LI at the deepest invasive portion correlated significantly with prognosis. These results indicate that u-PA expression is an important predictor of CRC development and liver metastasis. Furthermore, combined analysis of u-PA expression and PCNA-LI at the deepest invasive portion is very useful in predicting CRC prognosis.
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Document Type: Research Article

Affiliations: HIROSHIMA UNIV,SCH MED,DEPT INTERNAL MED 1,MINAMI KU,HIROSHIMA 734,JAPAN. HIROSHIMA UNIV,SCH MED,DEPT PATHOL,HIROSHIMA 734,JAPAN.

Publication date: January 1, 1997

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  • The International Journal of Oncology provides an international forum for the publication of the latest, cutting-edge research in the broad area of oncology and cancer treatment. The journal accepts original high quality works and reviews on all aspects of oncology research including carcinogenesis, metastasis, epidemiology, chemotherapy and viral oncology. Through fair and efficient peer review, the journal is dedicated to publishing top tier research in the field, offering authors rapid publication as well as high standards of copy-editing and production. The International Journal of Oncology is published on a monthly basis in both print and early online.
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