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Article

Rapamycin inhibits Toll-like receptor 4-induced pro-oncogenic function in head and neck squamous cell carcinoma

  • Authors:
    • Guoxin Ren
    • Jingzhou Hu
    • Runxiang Wang
    • Wei Han
    • Mei Zhao
    • Ge Zhou
    • Chenping Zhang
    • Zhiyuan Zhang
  • View Affiliations / Copyright

    Affiliations: Department of Oral and Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China, Department of Oral and Maxillofacial Surgery, Stomatological Hospital Affiliated Medical School, Nanjing University, Nanjing 210008, P.R. China, Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
  • Pages: 2804-2810
    |
    Published online on: April 11, 2014
       https://doi.org/10.3892/or.2014.3134
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Abstract

Toll-like receptor 4 (TLR4) is expressed in head and neck squamous cell carcinoma (HNSCC) cells and is associated with HNSCC cancer progression. Rapamycin has been proven to be efficient for the treatment of HNSCC in vivo, yet the mechanism is not understood and rapamycin demonstrates little effect in vitro. In the present study, the HNSCC cell lines CAL27 and SCC4 were pre-treated with rapamycin then stimulated with a TLR4 ligand lipopolysaccharide (LPS). Cell proliferation, migration, invasion, resistance to TRAIL-induced apoptosis, cytokine production, NF-κB and p65 activation were determined. The results indicated that LPS significantly stimulated HNSCC cell proliferation, cytokine production, migration, invasion and resistance to apoptosis induced by tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL). Pretreatment with rapamycin significantly attenuated LPS-induced pro-oncogenic effects by inhibiting the activation of NF-κB by LPS. siRNA knockdown of TLR4 in HNSCC cells demonstrated that rapamycin attenuated LPS-induced pro-oncogenic effects via TLR4. Hence, this study suggests rapamycin may be efficient for the treatment of HNSCC by attenuating TLR4-induced pro-oncogenic effects.
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Copy and paste a formatted citation
Spandidos Publications style
Ren G, Hu J, Wang R, Han W, Zhao M, Zhou G, Zhang C and Zhang Z: Rapamycin inhibits Toll-like receptor 4-induced pro-oncogenic function in head and neck squamous cell carcinoma. Oncol Rep 31: 2804-2810, 2014.
APA
Ren, G., Hu, J., Wang, R., Han, W., Zhao, M., Zhou, G. ... Zhang, Z. (2014). Rapamycin inhibits Toll-like receptor 4-induced pro-oncogenic function in head and neck squamous cell carcinoma. Oncology Reports, 31, 2804-2810. https://doi.org/10.3892/or.2014.3134
MLA
Ren, G., Hu, J., Wang, R., Han, W., Zhao, M., Zhou, G., Zhang, C., Zhang, Z."Rapamycin inhibits Toll-like receptor 4-induced pro-oncogenic function in head and neck squamous cell carcinoma". Oncology Reports 31.6 (2014): 2804-2810.
Chicago
Ren, G., Hu, J., Wang, R., Han, W., Zhao, M., Zhou, G., Zhang, C., Zhang, Z."Rapamycin inhibits Toll-like receptor 4-induced pro-oncogenic function in head and neck squamous cell carcinoma". Oncology Reports 31, no. 6 (2014): 2804-2810. https://doi.org/10.3892/or.2014.3134
Copy and paste a formatted citation
x
Spandidos Publications style
Ren G, Hu J, Wang R, Han W, Zhao M, Zhou G, Zhang C and Zhang Z: Rapamycin inhibits Toll-like receptor 4-induced pro-oncogenic function in head and neck squamous cell carcinoma. Oncol Rep 31: 2804-2810, 2014.
APA
Ren, G., Hu, J., Wang, R., Han, W., Zhao, M., Zhou, G. ... Zhang, Z. (2014). Rapamycin inhibits Toll-like receptor 4-induced pro-oncogenic function in head and neck squamous cell carcinoma. Oncology Reports, 31, 2804-2810. https://doi.org/10.3892/or.2014.3134
MLA
Ren, G., Hu, J., Wang, R., Han, W., Zhao, M., Zhou, G., Zhang, C., Zhang, Z."Rapamycin inhibits Toll-like receptor 4-induced pro-oncogenic function in head and neck squamous cell carcinoma". Oncology Reports 31.6 (2014): 2804-2810.
Chicago
Ren, G., Hu, J., Wang, R., Han, W., Zhao, M., Zhou, G., Zhang, C., Zhang, Z."Rapamycin inhibits Toll-like receptor 4-induced pro-oncogenic function in head and neck squamous cell carcinoma". Oncology Reports 31, no. 6 (2014): 2804-2810. https://doi.org/10.3892/or.2014.3134
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