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HOME > J Pathol Transl Med > Volume 33(9); 1999 > Article
Original Article Expression of Sialosyl Tn Mucin Antigen in Gastric Adenocarcinoma and Its Relationship with Prognostic Factors.
Sun Hee Chang, Ho Jung Kim, Sun Hee Sung, Hea Soo Koo, Woon Sub Han
Journal of Pathology and Translational Medicine 1999;33(9):695-701
DOI: https://doi.org/
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Department of Pathology, College of Medicine, Ewha Womans University, Seoul 110-126, Korea.

Sialosyl Tn mucin antigen (STn) is a carbohydrate antigen of tumor associated mucin formed by the premature 2~6 sialation of N-acetylgalactosamine. STn has been expressed in several tumor types and showed prognostic significance in colonic carcinoma. The authors evaluated the expression of STn immunohistochemically and correlated its expression with clinicopathologic variables in 100 gastric cancers. In early gastric cancer, STn was expressed in 24 cases out of 50 cases (48%). In advanced gastric cancer, STn was expressed in 48 of 50 (96%). The difference in STn expression between advanced gastric cancer and early gastric cancer was statistically significant. The difference in STn expression between tumors with lymph node metastasis and those without lymph node metastasis, between tubular adenocarcinoma and signet ring cell carcinoma, and between intestinal type and diffuse type adenocarcinoma was statistically insignificant in early or advanced gastric adenocarcinoma. These results suggest that the STn expression plays a role in the tumor progression in both early and advanced gastric adenocarcinomas.

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