Co-expression of Rho guanine nucleotide exchange factor 5 and Src associates with poor prognosis of patients with resected non-small cell lung cancer

  • Authors:
    • Ping He
    • Wei Wu
    • Haidong Wang
    • Kelong Liao
    • Wei Zhang
    • Gang Xiong
    • Feng Wu
    • Gang Meng
    • Kang Yang
  • View Affiliations

  • Published online on: October 14, 2013     https://doi.org/10.3892/or.2013.2797
  • Pages: 2864-2870
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Abstract

Specific and sensitive enough molecular biomarkers are lacking to accurately predict the survival of non-small cell lung cancer (NSCLC) patients. ARHGEF5 and Src have been shown to play an important role in tumorigenesis. However, the involvement of ARHGEF5 and Src in NSCLC remains unknown. Therefore, we evaluated the expression of ARHGEF5 and Src in resected NSCLC tissues and the correlation of co-expression of ARHGEF5 and Src and the prognosis of patients with resected NSCLC. Positive expression of ARHGEF5 was detected in 133 cases of 193 patients (68.91%). A total of 193 NSCLC patients (male: 145; female: 48; average age: 61.84 years; age range: 31-84) were enrolled in this study, of which 99 cases were squamous cell carcinomas (SCCs) (51.30%) and 94 cases were adenocarcinomas (ADCs) (48.70%). The expression of ARHGEF5 was mainly located in the cytoplasm of tumor cells, but not in the corresponding adjacent lung tissues. The levels of ARHGEF5 were significantly associated with age, differentiation and tumor stage. ARHGEF5 protein expression was associated with Src protein expression in NSCLC (χ2=11.874, P<0.01) and in ADC (χ2=12.194, P<0.01), but not in SCC. Co-immunoprecipitation revealed that there was a physical interaction between Src and ARHGEF5 in lung cancer cells. The patients with ARHGEF5(+)/Src(+) had a shorter survival time compared with the other patients (29.37 months versus 39.90 months, P=0.029). In conclusion, ARHGEF5/Src can be considered as a prognostic biomarker and a therapeutic target for patients with resected NSCLC.
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December 2013
Volume 30 Issue 6

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
He P, Wu W, Wang H, Liao K, Zhang W, Xiong G, Wu F, Meng G and Yang K: Co-expression of Rho guanine nucleotide exchange factor 5 and Src associates with poor prognosis of patients with resected non-small cell lung cancer. Oncol Rep 30: 2864-2870, 2013
APA
He, P., Wu, W., Wang, H., Liao, K., Zhang, W., Xiong, G. ... Yang, K. (2013). Co-expression of Rho guanine nucleotide exchange factor 5 and Src associates with poor prognosis of patients with resected non-small cell lung cancer. Oncology Reports, 30, 2864-2870. https://doi.org/10.3892/or.2013.2797
MLA
He, P., Wu, W., Wang, H., Liao, K., Zhang, W., Xiong, G., Wu, F., Meng, G., Yang, K."Co-expression of Rho guanine nucleotide exchange factor 5 and Src associates with poor prognosis of patients with resected non-small cell lung cancer". Oncology Reports 30.6 (2013): 2864-2870.
Chicago
He, P., Wu, W., Wang, H., Liao, K., Zhang, W., Xiong, G., Wu, F., Meng, G., Yang, K."Co-expression of Rho guanine nucleotide exchange factor 5 and Src associates with poor prognosis of patients with resected non-small cell lung cancer". Oncology Reports 30, no. 6 (2013): 2864-2870. https://doi.org/10.3892/or.2013.2797