Kwon OJ, Park JJ, Ko GH, Seo JH, Jeong BK, Kang KM, Woo SH, Kim JP, Hwa JS, Carey TE. HIF-1α and CA-IX as predictors of locoregional control for determining the optimal treatment modality for early-stage laryngeal carcinoma.
Head Neck 2014;
37:505-10. [PMID:
24677746 DOI:
10.1002/hed.23620]
[Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2013] [Revised: 11/19/2013] [Accepted: 02/06/2014] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND
The purpose of this study was to examine the predictive value of hypoxia-inducible factor (HIF)-1α, carbonic anhydrase (CA)-IX, glucose transporter (GLUT)-1, cyclooxygenase (COX)-2, Ki-67, and erythropoietin receptor (EPOR) as immunohistochemical markers for determining the optimal treatment modality for early stage laryngeal carcinoma.
METHODS
Tissue samples from 42 early stage laryngeal carcinomas treated with radiotherapy alone were analyzed immunohistochemically for the expression of 6 markers. The Kaplan-Meier method, univariate and multivariate analyses, and the Cox proportional hazards model were used to analyze the associations between patient and tumor characteristics and immunohistochemical results, and locoregional control.
RESULTS
Increased expression of HIF-1α and CA-IX was significantly correlated with residual tumor; no correlations were observed for the other immunohistochemical markers.
CONCLUSION
High levels of HIF-1α or CA-IX expression were significantly correlated with residual tumor after radiotherapy for early stage laryngeal carcinomas. Alternative treatment modalities to primary radiotherapy should be considered for early stage laryngeal carcinomas showing high HIF-1α or CA-IX expression.
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