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Article

Hypoxia-inducible factor-1α overexpression indicates poor clinical outcomes in tongue squamous cell carcinoma

  • Authors:
    • Fei-Wu Kang
    • Yin Gao
    • Lin Que
    • Jing Sun
    • Zuo-Lin Wang
  • View Affiliations / Copyright

    Affiliations: Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Tongji University, Shanghai 200072, P.R. China, Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Wenzhou Medical College, Wenzhou 325035, P.R. China
  • Pages: 112-118
    |
    Published online on: October 30, 2012
       https://doi.org/10.3892/etm.2012.779
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Abstract

The aim of the present study was to investigate the expression of hypoxia-inducible factor‑1α (HIF‑1α) in tongue squamous cell carcinoma (TSCC) and to assess its possible impact on prognosis. A total of 49 tumor samples and 15 adjacent non‑tumor samples from 49 patients treated between January 2000 and December 2005 at the Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Tongji University (Shanghai, China) were obtained for investigation with immunohistochemistry and reverse transcription‑polymerase chain reaction (RT‑PCR). The expression of HIF‑1α was detected in 87.76% (43/49) of the TSCC samples and in 33.33% (5/15) of the adjacent non‑tumor tissues. The expression of vascular endothelial growth factor (VEGF) was also observed in 83.67% (41/49) of the TSCC samples and in only 20% (3/15) of the adjacent non‑tumor samples at a low level. RT‑PCR revealed that the mRNA expression of HIF‑1α and VEGF was present in the tumor tissues; however, it was barely detected in the corresponding adjacent normal tissues. The overexpression of HIF‑1α was significantly associated with T classification (P=0.01), lymphatic metastasis (P=0.05) and histological differentiation (P<0.001). Furthermore, HIF‑1α overexpression was significantly associated with poor overall (P=0.001) and disease‑free survival rates (P=0.01), independent of T stage and lymphatic metastasis. The Cox proportional hazards regression model demonstrated that the level of HIF‑1α expression may be an independent prognostic factor for TSCC. HIF‑1α overexpression was observed in TSCC and its overexpression suggests a poor prognosis. HIF‑1α may be a molecular marker for predicting the prognosis of TSCC.
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Copy and paste a formatted citation
Spandidos Publications style
Kang F, Gao Y, Que L, Sun J and Wang Z: Hypoxia-inducible factor-1α overexpression indicates poor clinical outcomes in tongue squamous cell carcinoma. Exp Ther Med 5: 112-118, 2013.
APA
Kang, F., Gao, Y., Que, L., Sun, J., & Wang, Z. (2013). Hypoxia-inducible factor-1α overexpression indicates poor clinical outcomes in tongue squamous cell carcinoma. Experimental and Therapeutic Medicine, 5, 112-118. https://doi.org/10.3892/etm.2012.779
MLA
Kang, F., Gao, Y., Que, L., Sun, J., Wang, Z."Hypoxia-inducible factor-1α overexpression indicates poor clinical outcomes in tongue squamous cell carcinoma". Experimental and Therapeutic Medicine 5.1 (2013): 112-118.
Chicago
Kang, F., Gao, Y., Que, L., Sun, J., Wang, Z."Hypoxia-inducible factor-1α overexpression indicates poor clinical outcomes in tongue squamous cell carcinoma". Experimental and Therapeutic Medicine 5, no. 1 (2013): 112-118. https://doi.org/10.3892/etm.2012.779
Copy and paste a formatted citation
x
Spandidos Publications style
Kang F, Gao Y, Que L, Sun J and Wang Z: Hypoxia-inducible factor-1α overexpression indicates poor clinical outcomes in tongue squamous cell carcinoma. Exp Ther Med 5: 112-118, 2013.
APA
Kang, F., Gao, Y., Que, L., Sun, J., & Wang, Z. (2013). Hypoxia-inducible factor-1α overexpression indicates poor clinical outcomes in tongue squamous cell carcinoma. Experimental and Therapeutic Medicine, 5, 112-118. https://doi.org/10.3892/etm.2012.779
MLA
Kang, F., Gao, Y., Que, L., Sun, J., Wang, Z."Hypoxia-inducible factor-1α overexpression indicates poor clinical outcomes in tongue squamous cell carcinoma". Experimental and Therapeutic Medicine 5.1 (2013): 112-118.
Chicago
Kang, F., Gao, Y., Que, L., Sun, J., Wang, Z."Hypoxia-inducible factor-1α overexpression indicates poor clinical outcomes in tongue squamous cell carcinoma". Experimental and Therapeutic Medicine 5, no. 1 (2013): 112-118. https://doi.org/10.3892/etm.2012.779
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