Mucin Carbohydrate Antigens (T, Tn, and Sialyl-Tn) in Human Ovarian Carcinomas : Relationship With Histopathology and Prognosis
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概要
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Altered glycosylation of mucins leading to the expression of T, Tn, and sialyl-Tn antigens has been shown in ovarian carcinoma, but its relationship with prognosis is still unclear. We investigated immunohistochemically the expression of these antigens in 38 (17 serous and 21 mucinous) ovarian carcinomas to assess their potential prognostic value as compared with stage of disease, histopathology of tumors, and survival time of patients. Eight benign ovarian tumors (four serous and four mucinous), and four normal ovarian tissues also were studied. Of the 38 carcinomas, 25 (66%) expressed T, 27 (71%) expressed Tn, and 33 (87%) expressed sialyl-Tn antigens. Most cases (83%) expressed two or all of the three types of antigens simultaneously. Normal ovarian epithelia showed no staining for these antigens, and benign ovarian tumors were either negative or occasionally expressed weak staining in less than 25% of epithelial cell areas. Statistical analyses showed strong associations between Tn and sialyl-Tn antigen expressions and disease stage as well as histological grade. In 19 ovarian carcinoma patients with available survival data, the overall survival times of patients with hight Tn or sialyl-Tn antigen expression were significantly worse than those of the patients with negative and low expression (P<.05 and P<.01). In multivariate stepwise regression analysis, disease stage (P=.000) and Tn antigen expression (P=.02) were found to be significant independent parameters associated with the overall survival time. These findings suggest that, with exception of T antigen expression, the expression of Tn and sialyl-Tn antigens in ovarian carcinomas may provide additional prognostic information on patient outcome.
- 日本医科大学の論文
- 1998-03-25
日本医科大学 | 論文
- 大腸癌・乳癌の遺伝解析(分子生物学国際シンポジウム(老人病研究所分子生物学部門主催)「多因子性疾患の遺伝解析」)
- 空間認知と不安,気分・感情状態との関連について
- 病理部門 : 大学院 分子細胞構造学分野
- 病理部門(研究概要:研究業績)
- 病理部門