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Article

ASAP1 mediates the invasive phenotype of human laryngeal squamous cell carcinoma to affect survival prognosis

  • Authors:
    • Minghua Li
    • Linli Tian
    • Hongchao Yao
    • Jianguang Lu
    • Jingchun Ge
    • Yan Guo
    • Ming Liu
    • Hui Xiao
  • View Affiliations / Copyright

    Affiliations: Service of Head and Neck Surgery, Department of Otolaryngology - Head and Neck Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China, Service of Laryngology, Department of Otolaryngology - Head and Neck Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
  • Pages: 2676-2682
    |
    Published online on: April 23, 2014
       https://doi.org/10.3892/or.2014.3150
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Abstract

ASAP1 helps regulate cellular structures such as actin cytoskeletal remodeling and focal adhesions that have a pivotal function in tumor progression. Overexpression of ASAP1 has proven to be a malignant indicator for a variety of tumors. To further determine the potential involvement of ASAP1 in laryngeal squamous cell carcinoma (LSCC), we evaluated the expression levels of ASAP1 by quantitative real-time reverse-transcriptase polymerase chain reaction (qRT-PCR) and immunohistochemistry in tissue samples of 64 LSCC patients. We then analyzed and correlated the results with clinicopathological features. Furthermore, we used small interfering RNA (siRNA) to inhibit ASAP1 expression in vitro. The potential function of ASAP1 in invasiveness was evaluated in the Hep-2 LSCC cell line. Kaplan-Meier method was utilized to determine the association of ASAP1 expression with survival of patients. We showed that ASAP1 was upregulated in primary LSCC tumors and was correlated with lymph node metastasis and clinical tumor stage. Similarly, higher levels of ASAP1 were detected in the Hep-2 cell line compared to the 16 human bronchial epithelial (16HBE) cell line. ASAP1 expression was downregulated by lentiviral vector transfection containing siRNA in vitro. The invasive potential of these cells was found to be significantly suppressed, while expression levels of Rac1 and Cdc42 positively correlated with the inhibition of ASAP1 expression. In Kaplan-Meier overall survival curves, higher ASAP1 mRNA levels were found to be associated with a shorter progression-free survival trend. Based on these results, ASAP1 appears to contribute to the malignant mechanism of LSCC and may represent a significant prognostic marker for LSCC patients.
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Copy and paste a formatted citation
Spandidos Publications style
Li M, Tian L, Yao H, Lu J, Ge J, Guo Y, Liu M and Xiao H: ASAP1 mediates the invasive phenotype of human laryngeal squamous cell carcinoma to affect survival prognosis. Oncol Rep 31: 2676-2682, 2014.
APA
Li, M., Tian, L., Yao, H., Lu, J., Ge, J., Guo, Y. ... Xiao, H. (2014). ASAP1 mediates the invasive phenotype of human laryngeal squamous cell carcinoma to affect survival prognosis. Oncology Reports, 31, 2676-2682. https://doi.org/10.3892/or.2014.3150
MLA
Li, M., Tian, L., Yao, H., Lu, J., Ge, J., Guo, Y., Liu, M., Xiao, H."ASAP1 mediates the invasive phenotype of human laryngeal squamous cell carcinoma to affect survival prognosis". Oncology Reports 31.6 (2014): 2676-2682.
Chicago
Li, M., Tian, L., Yao, H., Lu, J., Ge, J., Guo, Y., Liu, M., Xiao, H."ASAP1 mediates the invasive phenotype of human laryngeal squamous cell carcinoma to affect survival prognosis". Oncology Reports 31, no. 6 (2014): 2676-2682. https://doi.org/10.3892/or.2014.3150
Copy and paste a formatted citation
x
Spandidos Publications style
Li M, Tian L, Yao H, Lu J, Ge J, Guo Y, Liu M and Xiao H: ASAP1 mediates the invasive phenotype of human laryngeal squamous cell carcinoma to affect survival prognosis. Oncol Rep 31: 2676-2682, 2014.
APA
Li, M., Tian, L., Yao, H., Lu, J., Ge, J., Guo, Y. ... Xiao, H. (2014). ASAP1 mediates the invasive phenotype of human laryngeal squamous cell carcinoma to affect survival prognosis. Oncology Reports, 31, 2676-2682. https://doi.org/10.3892/or.2014.3150
MLA
Li, M., Tian, L., Yao, H., Lu, J., Ge, J., Guo, Y., Liu, M., Xiao, H."ASAP1 mediates the invasive phenotype of human laryngeal squamous cell carcinoma to affect survival prognosis". Oncology Reports 31.6 (2014): 2676-2682.
Chicago
Li, M., Tian, L., Yao, H., Lu, J., Ge, J., Guo, Y., Liu, M., Xiao, H."ASAP1 mediates the invasive phenotype of human laryngeal squamous cell carcinoma to affect survival prognosis". Oncology Reports 31, no. 6 (2014): 2676-2682. https://doi.org/10.3892/or.2014.3150
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