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International Journal of Molecular Medicine is an international journal devoted to molecular mechanisms of human disease.

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Article

Low level of 5-Hydroxymethylcytosine predicts poor prognosis in non-small cell lung cancer

  • Authors:
    • Yunfei Liao
    • Jie Gu
    • Yongbing Wu
    • Xiang Long
    • Di Ge
    • Jianjun Xu
    • Jianyong Ding
  • View Affiliations / Copyright

    Affiliations: Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China, Department of Thoracic Surgery, The Affiliated Zhongshan Hospital of Fudan University, Shanghai 200032, P.R. China
  • Pages: 3753-3760
    |
    Published online on: April 19, 2016
       https://doi.org/10.3892/ol.2016.4474
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Abstract

The loss of 5-hydroxymethylcytosine (5-hmC) has previously been demonstrated to be implicated in the initiation and progression of various tumors. However, its role in non‑small cell lung cancer (NSCLC) remains unknown. The present study aimed to determine the level of 5‑hmC in NSCLC and their adjacent normal lung tissues by immunohistochemistry and dot‑blot analysis; then the relationship between 5‑hmC level and the clinicopathological features of NSCLC and the prognostic significance of 5‑hmC level in NSCLC patients were analyzed. By employing the dot‑blot analysis, a significant reduction of 5‑hmC level in NSCLC tissues compared with the adjacent normal tissues was detected, which were further verified by the immunohistochemistry results on tissue microarrays. Further analyses demonstrated that 65.38% (136/208) presented with low 5‑hmC level, and low 5‑hmC level was significantly associated with lymph node metastasis (P<0.001), histological type (P<0.001) and large tumor size (P=0.031). Notably, the 5‑year overall survival rate of patients with low 5‑hmC levels were significantly lower than patients with high 5‑hmC levels (P<0.001). In addition, it was demonstrated that 5‑hmC level was identified as independent prognostic factor in patients' overall survival. In conclusion, downregulation of 5-hmC may serve as a useful biomarker for NSCLC prognosis evaluation.
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Copy and paste a formatted citation
Spandidos Publications style
Liao Y, Gu J, Wu Y, Long X, Ge D, Xu J and Ding J: Low level of 5-Hydroxymethylcytosine predicts poor prognosis in non-small cell lung cancer. Oncol Lett 11: 3753-3760, 2016.
APA
Liao, Y., Gu, J., Wu, Y., Long, X., Ge, D., Xu, J., & Ding, J. (2016). Low level of 5-Hydroxymethylcytosine predicts poor prognosis in non-small cell lung cancer. Oncology Letters, 11, 3753-3760. https://doi.org/10.3892/ol.2016.4474
MLA
Liao, Y., Gu, J., Wu, Y., Long, X., Ge, D., Xu, J., Ding, J."Low level of 5-Hydroxymethylcytosine predicts poor prognosis in non-small cell lung cancer". Oncology Letters 11.6 (2016): 3753-3760.
Chicago
Liao, Y., Gu, J., Wu, Y., Long, X., Ge, D., Xu, J., Ding, J."Low level of 5-Hydroxymethylcytosine predicts poor prognosis in non-small cell lung cancer". Oncology Letters 11, no. 6 (2016): 3753-3760. https://doi.org/10.3892/ol.2016.4474
Copy and paste a formatted citation
x
Spandidos Publications style
Liao Y, Gu J, Wu Y, Long X, Ge D, Xu J and Ding J: Low level of 5-Hydroxymethylcytosine predicts poor prognosis in non-small cell lung cancer. Oncol Lett 11: 3753-3760, 2016.
APA
Liao, Y., Gu, J., Wu, Y., Long, X., Ge, D., Xu, J., & Ding, J. (2016). Low level of 5-Hydroxymethylcytosine predicts poor prognosis in non-small cell lung cancer. Oncology Letters, 11, 3753-3760. https://doi.org/10.3892/ol.2016.4474
MLA
Liao, Y., Gu, J., Wu, Y., Long, X., Ge, D., Xu, J., Ding, J."Low level of 5-Hydroxymethylcytosine predicts poor prognosis in non-small cell lung cancer". Oncology Letters 11.6 (2016): 3753-3760.
Chicago
Liao, Y., Gu, J., Wu, Y., Long, X., Ge, D., Xu, J., Ding, J."Low level of 5-Hydroxymethylcytosine predicts poor prognosis in non-small cell lung cancer". Oncology Letters 11, no. 6 (2016): 3753-3760. https://doi.org/10.3892/ol.2016.4474
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