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Article

Transducer of erbB2.1 is a potential cellular target of gefitinib in lung cancer therapy

  • Authors:
    • Ke‑Kang Sun
    • Yang Yang
    • Lin Zhao
    • Li‑Li Wang
    • Yang Jiao
  • View Affiliations / Copyright

    Affiliations: Department of Gastrointestinal Surgery Division of Thoracic Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu 215300, P.R. China, Key Laboratory of Radiation Biology, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
  • Pages: 373-377
    |
    Published online on: October 15, 2012
       https://doi.org/10.3892/ol.2012.969
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Abstract

Gefitinib, the specific inhibitor of the epidermal growth factor receptor (EGFR), may cause growth delay in cancer cell lines. Thorough understanding of the downstream cellular signaling of gefitinib will facilitate the discovery of biomarkers for predicting outcomes and monitoring anti‑EGFR therapies, and provide information for key targets for therapeutic intervention. In this study, we investigated the role of transducer of erbB2.1 (TOB1) in gefitinib therapy. Using the lung carcinoma cell lines A549 and NCI‑H1975, the results suggested that gefitinib might mediate cell cycle arrest in lung cancer cells at least by targeting TOB1 expression. Gefitinib treatment caused cell cycle arrest predominantly at the G1 phase, which is associated with TOB1 nuclear translocation and its interaction with cyclin D1. We also showed that knockdown of TOB1 expression by RNAi rescued lung cancer cells from gefitinib‑induced cell‑proliferative arrest. These results suggest that TOB1 interaction with cyclin D1 and nuclear translocation is directly involved in the gefitinib‑induced anti‑proliferative cell cycle arrest.
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Copy and paste a formatted citation
Spandidos Publications style
Sun KK, Yang Y, Zhao L, Wang LL and Jiao Y: Transducer of erbB2.1 is a potential cellular target of gefitinib in lung cancer therapy. Oncol Lett 5: 373-377, 2013.
APA
Sun, K., Yang, Y., Zhao, L., Wang, L., & Jiao, Y. (2013). Transducer of erbB2.1 is a potential cellular target of gefitinib in lung cancer therapy. Oncology Letters, 5, 373-377. https://doi.org/10.3892/ol.2012.969
MLA
Sun, K., Yang, Y., Zhao, L., Wang, L., Jiao, Y."Transducer of erbB2.1 is a potential cellular target of gefitinib in lung cancer therapy". Oncology Letters 5.1 (2013): 373-377.
Chicago
Sun, K., Yang, Y., Zhao, L., Wang, L., Jiao, Y."Transducer of erbB2.1 is a potential cellular target of gefitinib in lung cancer therapy". Oncology Letters 5, no. 1 (2013): 373-377. https://doi.org/10.3892/ol.2012.969
Copy and paste a formatted citation
x
Spandidos Publications style
Sun KK, Yang Y, Zhao L, Wang LL and Jiao Y: Transducer of erbB2.1 is a potential cellular target of gefitinib in lung cancer therapy. Oncol Lett 5: 373-377, 2013.
APA
Sun, K., Yang, Y., Zhao, L., Wang, L., & Jiao, Y. (2013). Transducer of erbB2.1 is a potential cellular target of gefitinib in lung cancer therapy. Oncology Letters, 5, 373-377. https://doi.org/10.3892/ol.2012.969
MLA
Sun, K., Yang, Y., Zhao, L., Wang, L., Jiao, Y."Transducer of erbB2.1 is a potential cellular target of gefitinib in lung cancer therapy". Oncology Letters 5.1 (2013): 373-377.
Chicago
Sun, K., Yang, Y., Zhao, L., Wang, L., Jiao, Y."Transducer of erbB2.1 is a potential cellular target of gefitinib in lung cancer therapy". Oncology Letters 5, no. 1 (2013): 373-377. https://doi.org/10.3892/ol.2012.969
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