Fasudil, a Rho kinase inhibitor, suppresses tumor growth by inducing CXCL14/BRAK in head and neck squamous cell carcinoma

Biomedical Research
Chihiro MiyamotoMasaichi-Chang-il Lee

Abstract

CXCL14/BRAK (BRAK) is a secreted chemokine with anti-tumor activity, and its expression is suppressed in tumor cells. We previously reported the anti-tumor activity of BRAK in cell lines of head and neck squamous cell carcinoma (HNSCC) and the suppression of BRAK secretion in these cells. BRAK secretion in fibrosarcoma cells is restored by Fasudil, which is a Rho-kinase (ROCK) inhibitor. In this study, we examined the anti-tumor effect of BRAK by evaluating its gene expression and protein secretion in HNSCC cell lines. We found that BRAK mediated the suppressive effect of Fasudil against HNSCC cells. Tumor development in female BALB/cAJclnu/nu mice was suppressed by Fasudil. Also secretion of BRAK protein by tumor cell lines in vitro was significantly stimulated by Fasudil treatment. Similarly, the production of BRAK protein was significantly increased by the addition of Fasudil to cultured tumor cells. Furthermore Fasudil significantly increased BRAK gene expression at the mRNA level in HNSCC cell line. Inhibition of the RhoA/ROCK pathway by siRNAs significantly stimulated BRAK gene expression. These results show that the tumor-suppressive effect of Fasudil was mediated by BRAK, suggesting that Fasudil may therefore be useful ...Continue Reading

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Citations

May 28, 2019·Experimental Biology and Medicine·Reza AbbasgholizadehRobert J Schwartz
Jan 7, 2016·Journal of Inflammation·Jing LuMeinrad Gawaz
Jul 30, 2020·Pharmacological Research : the Official Journal of the Italian Pharmacological Society·Graziella Ribeiro de SousaMaría Sol Brassesco
May 2, 2021·International Immunopharmacology·Arezoo Gowhari ShabgahJamshid Gholizadeh Navashenaq

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