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Co-expression of CD44v3 and heparanase is correlated with metastasis of human colon cancer

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Heparanase is an enzyme that degrades extracellular glycoprotein to release heparan sulfate molecules. CD44 variant exon 3 (CD44v3), a receptor for heparan sulfate, generates intracellular signals for cell migration. Production of CD44v3 and expression of heparanase were detected by immunohistochemistry and in situ hybridization, respectively. In 145 cases of colon cancer, heparanase mRNA and CD44v3 protein were detected in 46% and 43%, respectively. Co-expression of heparanase and CD44v3 was found in cases of 12% of Dukes' B, 32% of Dukes' C, and 57% of Dukes' D cases. Survival analysis found a significantly poorer prognosis in patients showing concurrent expression of heparanase and CD44v3 than in patients not showing both (p<0.0001). Concurrent expression of heparanase and CD44v3 might be a mechanism of cancer invasion and metastasis in colon cancer.
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Document Type: Research Article

Affiliations: Department of Oncological Pathology, Nara Medical University Cancer Center, Kashihara, Nara 634-8521, Japan., Email: [email protected]

Publication date: January 1, 2002

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  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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