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Background

Current study investigates the role of Oct4, Nanog and CD24 in locally-advanced oral squamous cell carcinoma (OSCC), to evaluate whether the expression of these markers can predict efficacy of neoadjuvant-chemo-radiotherapy and survival of patients.

Methods

Biomarker expression was evaluated in 50 homogenously treated patients of locally-advanced OSCC.

Results

Clinical response was complete in 30% (n=15), partial response in 46% (n=23), no response in 24% (n=12). Pathologically, 74% patents (n=37) were responders and 26% were non-responders (n=13). Biomarker-overexpression was seen in 46% cases for Oct4, 54% cases for Nanog and 58% cases for CD24. Oct4, Nanog and CD24 expression showed significant correlation with clinical and pathological response (p <0.05). Three year recurrence-free survival was 71%, overall survival was 66%. Post-treatment advanced pathological N (ypN), post treatment advanced pathological TNM (ypTNM) stage, clinical non-response, pathologic non-response, positive/high expression of all three biomarkers had a significant negative impact on recurrence-free and overall survival.

Conclusions

Expressions of Oct4, Nanog and CD24 have significant association with treatment response and survival in patients with locally advanced OSCC treated with neoadjuvant chemo-radiation. Survival of these patients is significantly affected by ypN stage, ypTNM stage, expression of all three biomarkers, clinical and pathological response to neoadjuvant therapy.
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http://purl.uniprot.org/citations/32986350http://purl.uniprot.org/core/title"Increased Expression of Oct4, Nanog and CD24 Predicts Poor Response to Chemo-Radiotherapy and Unfavourable Prognosis in Locally Advanced Oral Squamous Cell Carcinoma."xsd:string
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