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Clinicopathologic significance of ROCK2 expression in oral squamous cell carcinomas

Dourado, Mauricio R.; Oliveira, Carine E. de; Sawazaki-Calone, Iris; Sundquist, Elias; Coletta, Ricardo D.; Salo, Tuula (2017-11-07)

 
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URL:
https://doi.org/10.1111/jop.12651

Dourado, Mauricio R.
Oliveira, Carine E. de
Sawazaki-Calone, Iris
Sundquist, Elias
Coletta, Ricardo D.
Salo, Tuula
John Wiley & Sons
07.11.2017

Dourado MR, de Oliveira CE, Sawazaki‐Calone I, Sundquist E, Coletta RD, Salo T. Clinicopathologic significance of ROCK2 expression in oral squamous cell carcinomas. J Oral Pathol Med. 2018;47:121–127. https://doi.org/10.1111/jop.12651

https://rightsstatements.org/vocab/InC/1.0/
© 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. This is the peer reviewed version of the following article: Dourado MR, de Oliveira CE, Sawazaki‐Calone I, Sundquist E, Coletta RD, Salo T. Clinicopathologic significance of ROCK2 expression in oral squamous cell carcinomas. J Oral Pathol Med. 2018;47:121–127, which has been published in final form at https://doi.org/10.1111/jop.12651. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
https://rightsstatements.org/vocab/InC/1.0/
doi:https://doi.org/10.1111/jop.12651
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2017113055175
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Abstract

Background: Rho-associated coiled-coil kinase 2 (ROCK2) is an oncoprotein that controls cytoskeleton organization and acts as prognostic marker in different types of solid tumors. ROCK2 overexpression is also observed in cancer-associated fibroblasts (CAF), which suggests its relevance within the tumor microenvironment. This study aimed to access the prognostic value of ROCK2 in oral squamous cell carcinomas (OSCCs) and its association with CAF density.

Methods: Rho-associated coiled-coil kinase 2 immunohistochemical analysis was applied in 93 OSCC samples from 2 centers in Brazil and Finland. The samples were also stained for isoform α of smooth muscle actin (α-SMA) to characterize the presence of CAF in the tumor stroma. Clinicopathological associations were analyzed using Chi-squared test, survival curves were constructed according to the Kaplan-Meier method, and Cox proportional hazard model was applied for multivariate survival analysis.

Results: Advanced clinical stage (P = .002) and increased density of CAF (P = .002) were significantly associated with high ROCK2 expression. The high expression of ROCK2 was also associated with shortened disease-specific survival (HR: 2.22, 95% CI: 1.15–4.38, P = .04), but the association did not withstand the Cox multivariate survival analysis.

Conclusions: The findings suggest that high ROCK2 expression in OSCC is associated with advanced disease and follows the increase in CAF density, which may be important for tumor progression.

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