cyclinD_1表达与膀胱移行细胞癌生物学行为关系的研究

EXPRESSION AND RELATIVITY OF CYCLIND 1 IN THE BIOLOGICAL BEHAVIOUR OF TEANSITIONAL CELL CARCINOMA OF BLADDER

目的 :检测 cyclin D1 在膀胱移行细胞癌 (TCC)中的表达 ,探讨其与该肿瘤生物学行为的关系。方法 :应用免疫组化 SP法检测 45例膀胱 TCC和 12例正常膀胱 cyclin D1 组织的表达。结果 :膀胱 TCC组 cyclin D1 阳性表达率为 5 5 .5 6 % ,对照组无表达 ;临床分期 T0 ～ T1 为 78.5 % ,T2 ～ T4为 11.76 % ;肿瘤分级 G1 为 85 % ,G2 为46 .6 7% ,G3为 10 % ,随着肿瘤分期分级上升 ,阳性表达率逐渐升高 ;但在肿瘤初发和复发及单发和多发之间差异无显著性。结论 :cyclin D1 在膀胱 TCC形成的早期起重要的作用 ;在评估膀胱

Objective:To study the expression and significance of cyclinD 1 in 45 cases of transitional cell carcinoma of bladder.Methods:The expression of cyclinD 1 was detectde by immunohistochemistry(SP).Results: Expression of cyclinD 1 was found in 55.56% of TCCs and none of controls,and 78.57% of T a～T 1,11.76%of T 2～T 4.Approximately,85% of G 1,46.67% of G 2 and 10% of G 3 with the progress of tumors clinical stages and grades ,and the positive rates of cyclinD 1 expression decreased. There was no significant correlation between cyclinD 1 expression and number of lesions and postoperative reccurance.Conclusions: CyclinD 1 overexpression can play an important role in the early stage of bladder tumorgenesis.There was significant relativity between cyclinD 1 expression and the biological behaviour of bladder TCCs.