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Article

Identification of DLC‑1 expression and methylation status in patients with non‑small‑cell lung cancer

  • Authors:
    • Hongxiang Feng
    • Zhenrong Zhang
    • Xiaowei Wang
    • Deruo Liu
  • View Affiliations / Copyright

    Affiliations: Department of Thoracic Surgery, China‑Japan Friendship Hospital, Beijing 100029, P.R. China
  • Pages: 249-254
    |
    Published online on: November 20, 2015
       https://doi.org/10.3892/mco.2015.681
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Abstract

In order to determine whether the deleted in liver cancer‑1 (DLC‑1) gene is deregulated in non‑small‑cell lung carcinoma (NSCLC) and to assess the contribution of molecular alterations in DLC‑1 to lung carcinogenesis, a total of 84 tissue specimens (30 NSCLC and 30 corresponding adjacent normal tissues; 5 benign tumor and 5 corresponding adjacent normal tissues; and 10 pulmonary bullae and 4 corresponding adjacent normal tissues), were obtained from 45 patients who underwent curative surgical resection. DLC‑1 mRNA expression was evaluated by reverse transcription‑quantitative polymerase chain reaction (PCR) and its protein level was assessed by western blot analysis. A significant downregulation of DCL‑1 at the mRNA and protein levels was observed in NSCLC tissues when compared to benign lung tumors and normal lung tissues (P<0.001). To further determine whether the decreased expression of DLC‑1 at the mRNA and protein levels is associated with the methylation of its promoter, methylation‑specific PCR was performed following extraction of genomic DNA from the samples. DLC‑1 promoter methylation was identified in 7 of the 30 (23.3%) NSCLC tissue samples, but not in the corresponding adjacent normal tissues from NSCLC patients or in lung tissues from non‑NSCLC patients. Our data indicated that DLC‑1 hypermethylation may play a crucial role in lung carcinogenesis and may be a target for the treatment of NSCLC.
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Copy and paste a formatted citation
Spandidos Publications style
Feng H, Zhang Z, Wang X and Liu D: Identification of DLC‑1 expression and methylation status in patients with non‑small‑cell lung cancer. Mol Clin Oncol 4: 249-254, 2016.
APA
Feng, H., Zhang, Z., Wang, X., & Liu, D. (2016). Identification of DLC‑1 expression and methylation status in patients with non‑small‑cell lung cancer. Molecular and Clinical Oncology, 4, 249-254. https://doi.org/10.3892/mco.2015.681
MLA
Feng, H., Zhang, Z., Wang, X., Liu, D."Identification of DLC‑1 expression and methylation status in patients with non‑small‑cell lung cancer". Molecular and Clinical Oncology 4.2 (2016): 249-254.
Chicago
Feng, H., Zhang, Z., Wang, X., Liu, D."Identification of DLC‑1 expression and methylation status in patients with non‑small‑cell lung cancer". Molecular and Clinical Oncology 4, no. 2 (2016): 249-254. https://doi.org/10.3892/mco.2015.681
Copy and paste a formatted citation
x
Spandidos Publications style
Feng H, Zhang Z, Wang X and Liu D: Identification of DLC‑1 expression and methylation status in patients with non‑small‑cell lung cancer. Mol Clin Oncol 4: 249-254, 2016.
APA
Feng, H., Zhang, Z., Wang, X., & Liu, D. (2016). Identification of DLC‑1 expression and methylation status in patients with non‑small‑cell lung cancer. Molecular and Clinical Oncology, 4, 249-254. https://doi.org/10.3892/mco.2015.681
MLA
Feng, H., Zhang, Z., Wang, X., Liu, D."Identification of DLC‑1 expression and methylation status in patients with non‑small‑cell lung cancer". Molecular and Clinical Oncology 4.2 (2016): 249-254.
Chicago
Feng, H., Zhang, Z., Wang, X., Liu, D."Identification of DLC‑1 expression and methylation status in patients with non‑small‑cell lung cancer". Molecular and Clinical Oncology 4, no. 2 (2016): 249-254. https://doi.org/10.3892/mco.2015.681
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