Clinical Medicine of China 2011;27(1):82-85

doi:10.3760/cma.j.issn.1008-6315.2011.01.027

Expression of insulin-like growth factor Ⅱ mRNA-binding protein 3 in transitional cell carcinoma of bladder and its clinical significance

Xuejun HE ; Wengang LIU ; Shaoyi SHE ; Shangjin HE ; Qiancheng QIU ; Wenqiang LIU

Keywords

Bladder cancer; IMP3; Immunohistochemistry

Country

China

Language

Chinese

Abstract

Objective To investigate the expression of insulin-like growth factor Ⅱ mRNA-binding protein 3( IMP3 ) in transitional cell carcinoma of bladder( TCCB ) and its clinical significance. Methods The IMP3 expressions in 6 normal bladder tissues and 48 TCCB tissues were determined by immunohistochemistry staining, and the relationships between IMP3 expression and gender, age, pathological grading and staging were analyzed statistically. Results The positive expression rate of IMP3 was 62.5% ( 30/48 ) in bladder cancer,which were significantly higher than that in normal control ( 0/6 ) ( P ＜ 0. 05 ). The positive rate of IMP3 expression were significantly lower in superficial TCCB ( 46. 15%, 12/22 ) or early TCCB [ Grade Ⅰ 12. 5%(1/8) ,Grade Ⅱ 60. 0% (12/20) ] than that in invasive TCCB [T2 or above,81.8% (18/22) ] or advanced TCCB [ Grade Ⅲ ,85% ( 17/20 ) ] ( Ps ＜ 0. 05 ). Conclusion IMP3 is a promising biomarker for eraly detection and assessment of the malignancy degree in TCCB.