Loss of S100A14 expression at the tumor‐invading front correlates with poor differentiation and worse prognosis in oral squamous cell carcinoma
Open Access
- 23 March 2020
- journal article
- research article
- Published by Wiley in Head & Neck
- Vol. 42 (8), 2088-2098
- https://doi.org/10.1002/hed.26140
Abstract
Background We previously showed a tumor‐suppressive function of S100A14 in oral squamous cell carcinoma (OSCC). This study aimed to examine the prognostic significance and differentiation‐related function of S100A14 in OSCC. Methods S100A14 expression was examined in 170 OSCCs from Norwegian and Nepalese populations using immunohistochemistry. Pro‐differentiation function was investigated by overexpressing and silencing S100A14 expression in OSCC‐derived cells. External transcriptomic datasets were used to validate association between S100A14 and differentiation markers in OSCC. Result Loss of S100A14 expression at the invading tumor fronts significantly correlated with poor differentiation and reduced 10‐years survival of OSCC‐patients. Multivariate Cox analysis identified S100A14 to be an independent prognostic factor. Modulation of S100A14 expression in OSCC‐derived cells positively correlated with the expression of differentiation markers. Analysis of external datasets supported the pro‐differentiation function of S100A14. Conclusion These results indicate that S100A14 is a pro‐differentiation protein and its expression might be useful as a prognostic marker in OSCC.Funding Information
- Senter for Internasjonalisering av Utdanning (CPEA‐LT‐2016/10106)
- Helse Vest (912260)
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