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Expression of HIF-1α and Glut-1 in human bladder cancer

Expression of HIF-1α and Glut-1 in human bladder cancer HIF-1 is a heterodimer consisting of the HIF-1α and HIF-1β subunits, and HIF-1α is the unique oxygen regulated subunit that determines HIF-1 activity. HIF-1α upgrades many gene products which include the glucose transporter protein 1 (Glut-1). Immunohistochemical studies using a monoclonal antibody specific for HIF-1α indicate that the overexpression of HIF-1α occurs in the most common forms of human cancer, including bladder cancer. The expression of Glut-1 in human bladder cancer is associated with poor prognosis and a low survival rate. To our knowledge, this is the first study to compare the expression of both HIF-1α and Glut-1 with clinicopathological characteristics in superficial and invasive human bladder cancer (all invasive bladder cancer patients received radical radiotherapy). The Kaplan-Meier survival analysis curve shows a significant association of HIF-1α expression with recurrence and survival in superficial bladder cancer and shows a significant association of Glut-1 with survival in invasive bladder cancer (chi2 (4)=10.52; Pr >chi2 =0.0012). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Oncology Reports Spandidos Publications

Expression of HIF-1α and Glut-1 in human bladder cancer

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Publisher
Spandidos Publications
Copyright
Copyright © Spandidos Publications
ISSN
1021-335X
eISSN
1791-2431
DOI
10.3892/or.14.4.909
Publisher site
See Article on Publisher Site

Abstract

HIF-1 is a heterodimer consisting of the HIF-1α and HIF-1β subunits, and HIF-1α is the unique oxygen regulated subunit that determines HIF-1 activity. HIF-1α upgrades many gene products which include the glucose transporter protein 1 (Glut-1). Immunohistochemical studies using a monoclonal antibody specific for HIF-1α indicate that the overexpression of HIF-1α occurs in the most common forms of human cancer, including bladder cancer. The expression of Glut-1 in human bladder cancer is associated with poor prognosis and a low survival rate. To our knowledge, this is the first study to compare the expression of both HIF-1α and Glut-1 with clinicopathological characteristics in superficial and invasive human bladder cancer (all invasive bladder cancer patients received radical radiotherapy). The Kaplan-Meier survival analysis curve shows a significant association of HIF-1α expression with recurrence and survival in superficial bladder cancer and shows a significant association of Glut-1 with survival in invasive bladder cancer (chi2 (4)=10.52; Pr >chi2 =0.0012).

Journal

Oncology ReportsSpandidos Publications

Published: Oct 1, 2005

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