Chemokine receptor 7 promotes tumor migration and invasiveness via the RhoA/ROCK pathway in metastatic squamous cell carcinoma of the head and neck

  • Authors:
    • Zhongfei Xu
    • Xiaojiao Zheng
    • Liangliang Yang
    • Fayu Liu
    • Enjiao Zhang
    • Weiyi Duan
    • Shuang Bai
    • Jawad Safdar
    • Zhenning Li
    • Changfu Sun
  • View Affiliations

  • Published online on: November 27, 2014     https://doi.org/10.3892/or.2014.3631
  • Pages:849-855
0

Abstract

Metastatic squamous cell carcinoma of the head and neck (SCCHN) has been shown to express chemokine receptor 7 (CCR7), which can activate signaling pathways to promote invasion and survival of SCCHN cells. We hypothesized that the RhoA/Rho-associated kinase (ROCK) pathway is involved in the CCR7-induced invasion and migration of metastatic SCCHN cells. Thus, using migration, matrigel invasion and scrape wound-healing assays, we elucidated the role of RhoA in mediating CCR7-associated cellular mobility. Pull-down assays and western blotting were used to measure RhoA and its downstream expression. Immunohistochemical staining and analysis were useful in identifying the correlation between CCR7 and RhoA expression and clinicopathological factors. The results showed that inhibition of RhoA/ROCK reduced the tumor cell migration and invasiveness induced by CCL19. Activated RhoA, proline-rich tyrosine kinase-2 (Pyk2) and cofilin induced by CCL19 were elevated, and increased RhoA, Pyk2 and cofilin activity was eliminated by CCR7mAb, RhoA/ROCK and Pyk2 inhibitors, indicating involvement of the RhoA/ROCK-Pyk2-cofilin cascade. In summary, CCR7 via RhoA/ROCK-Pyk2 cofilin pathway promotes invasion and migration of metastatic SCCHN cells.

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February 2015
Volume 33 Issue 2

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

2016 Impact Factor: 2.662
Ranked #31/217 Oncology
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Copy and paste a formatted citation
APA
Xu, Z., Zheng, X., Yang, L., Liu, F., Zhang, E., Duan, W. ... Sun, C. (2015). Chemokine receptor 7 promotes tumor migration and invasiveness via the RhoA/ROCK pathway in metastatic squamous cell carcinoma of the head and neck. Oncology Reports, 33, 849-855. https://doi.org/10.3892/or.2014.3631
MLA
Xu, Z., Zheng, X., Yang, L., Liu, F., Zhang, E., Duan, W., Bai, S., Safdar, J., Li, Z., Sun, C."Chemokine receptor 7 promotes tumor migration and invasiveness via the RhoA/ROCK pathway in metastatic squamous cell carcinoma of the head and neck". Oncology Reports 33.2 (2015): 849-855.
Chicago
Xu, Z., Zheng, X., Yang, L., Liu, F., Zhang, E., Duan, W., Bai, S., Safdar, J., Li, Z., Sun, C."Chemokine receptor 7 promotes tumor migration and invasiveness via the RhoA/ROCK pathway in metastatic squamous cell carcinoma of the head and neck". Oncology Reports 33, no. 2 (2015): 849-855. https://doi.org/10.3892/or.2014.3631