E-CD和p16在膀胱移行细胞癌组织中的表达及其临床意义

目的 探讨E-CD和p16在人膀胱移行细胞癌中的表达及其意义.方法 采用免疫组织化学方法检测50例膀胱移行细胞癌和10例正常膀胱组织中的E-CD和p16蛋白的表达.结果 E-CD和p16在膀胱癌中阳性表达率分别为44.0%及54.0%.病理分级:E-CD在Ⅰ、Ⅱ、Ⅲ级膀胱癌中阳性表达率分别为68.7%、57.7%、25.0%,p16为75.0%、53.8%、12.5%,差异均有统计学意义(P＜0.05);肿瘤侵袭程度:E-CD及p16在非浸润型膀胱癌中阳性表达率分别为72.7%和68.2%,在浸润型膀胱癌中为42.9%和42.8%,均有不同程度的降低;肿瘤转移:E-CD与p16在无淋巴结转移组阳性表达率为69.4%与63.9%,在淋巴结转移组分别降低至21.4%与28.6%,差异有统计学意义(P＜0.05).结论 E-CD和p16均在膀胱移行细胞癌的发生发展过程中起重要作用,且可能与肿瘤的恶性程度及预后有关.

Abstract：

Objective To investigate the expression of E-CD and p16 in transitional cell carcinoma (TCC) of bladder and the implication. Methods The expression of E-CD and p16 was detected in 50cases of TCC and 10 cases of normal bladder tissue by immunohistochemical technique. Results The positive expression rate of E-CD and p16 in nomal bladder tissue ( 100% ) was significantly higher than that in the TCC (44. 0% and 54. 0% ). The positive expression rate of E-CD in the TCC of grades Ⅰ , Ⅱ, Ⅲ was 68.7%, 57.7% and 25.0%, and that of p16 was 75.0%, 53. 8%, 12. 5%, respectively. The positive expression rate of E-CD and p16 in non-muscle invasive TCC (Tis-T1) was 72.7% and 68. 2%, and that in muscle invasive TCC was 42. 9% and 42. 8% respectively. The positive expression rate of E-CD and p16 in no-lymphatic metastasis was 69. 4% and 63.9%, and that in lympathic metastasis was significantly reduced to 21.4% and 28. 6%. Conclusion E-CD and p16 play an important role in the pathogenesis and development of the TCC and they are helpful to predicting the prognosis of the patients with TCC.

The expression and significance of E-CD and p16 in transitional cell carcinoma of bladder

Objective To investigate the expression of E-CD and p16 in transitional cell carcinoma (TCC) of bladder and the implication. Methods The expression of E-CD and p16 was detected in 50cases of TCC and 10 cases of normal bladder tissue by immunohistochemical technique. Results The positive expression rate of E-CD and p16 in nomal bladder tissue ( 100% ) was significantly higher than that in the TCC (44. 0% and 54. 0% ). The positive expression rate of E-CD in the TCC of grades Ⅰ , Ⅱ, Ⅲ was 68.7%, 57.7% and 25.0%, and that of p16 was 75.0%, 53. 8%, 12. 5%, respectively. The positive expression rate of E-CD and p16 in non-muscle invasive TCC (Tis-T1) was 72.7% and 68. 2%, and that in muscle invasive TCC was 42. 9% and 42. 8% respectively. The positive expression rate of E-CD and p16 in no-lymphatic metastasis was 69. 4% and 63.9%, and that in lympathic metastasis was significantly reduced to 21.4% and 28. 6%. Conclusion E-CD and p16 play an important role in the pathogenesis and development of the TCC and they are helpful to predicting the prognosis of the patients with TCC.