Analysis of the NF-kappaB and Apoptosis Inducing Genes in Bladder Tumor.
10.4111/kju.2007.48.5.483
- Author:
Pildu JUNG
1
;
Kwang Hee HAN
;
Seok Joong YUN
;
Yong June KIM
;
Sang Cheol LEE
;
Hyung Lae LEE
;
Wun Jae KIM
Author Information
1. Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea. wjkim@chungbuk.ac.kr
- Publication Type:Original Article
- Keywords:
NF-kappaB;
BCL2-associated X protein;
BCL2-associated death protein;
BH3 interacting domain death agonist protein;
Bladder tumor
- MeSH:
Apoptosis*;
bcl-2-Associated X Protein;
BH3 Interacting Domain Death Agonist Protein;
Carcinoma, Transitional Cell;
Cell Line;
Humans;
Mucous Membrane;
NF-kappa B*;
Paraffin;
Transcription Factors;
Urinary Bladder Neoplasms*;
Urinary Bladder*
- From:Korean Journal of Urology
2007;48(5):483-488
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: A multi-subunit transcription factor NF-kappaB mediates the antiapoptotic signals in several cancer cell lines and it is activated in a broad range of human tumors. In this study, we investigated whether the expression levels of the NF-kappaB and the apoptosis inducing genes were related to the pathogenesis and clinical properties of human bladder tumor. MATERIALS AND METHODS: The expressions of NF-kappaB, BCL2-associated X protein (BAX), BCL2-associated death protein (BAD) and BH3-interacting domain death agonist protein (BID) were investigated by performing immunohistochemical staining on 133 archival bladder tissue paraffin blocks; these blocks included 122 transitional cell carcinomas of the urinary bladder and 11 normal bladder mucosae. RESULTS: The expression levels of NF-kappaB were significantly higher in the bladder tumors than those of the normal bladder mucosae (p=0.001). The expression levels of BAX in the superficial and low-grade (grade 1 and 2) bladder tumors were significantly enhanced more than those of the high-grade and invasive cases (p=0.042 and p=0.045, respectively), while the expression levels of BAD in the tumor tissues and low-grade tumors were significantly elevated compared with those of the normal mucosae and high grade tumor (p=0.007 and p=0.048, respectively). But the expressions of BID were not correlated with any pathologic and clinical properties. CONCLUSIONS: The expressions of the NF-kappaB and apoptosis inducing genes such as BAX and BAD are strongly associated with the pathogenesis and clinical properties of bladder tumor. (Korean J Urol 2007;48:483-488)
