Journal
ORAL DISEASES
Volume 24, Issue 6, Pages 930-939Publisher
WILEY
DOI: 10.1111/odi.12872
Keywords
head and neck cancer; lymphatic metastasis; microRNA; neoplasms; outcome; prognosis
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Funding
- Fondo Nacional de Desarrollo Cientifico y Tecnologico [11140507]
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ObjectivesMicroRNAs play a role in the development and progression of head and neck squamous cell carcinomas (HNSCC). Our aim was to study the expression of miR-26, miR-107, miR-125b, and miR-203 in primary HNSCC with and without lymph node metastasis and their clinicopathological significance. Materials and MethodsThe expression of microRNAs in primary HNSCC with lymph node metastasis (n=16) and their matched lymph node, as well as primary tumors without metastasis (n=16), were determined by quantitative RT-PCR and analyzed with clinicopathological features and survival. ResultsThe expression levels of miR-26 (p<.05) and miR-125b (p<.01) were higher in metastatic primary HNSCC, while levels of miR-203 (p<.01) were lower. The expression of the microRNAs was associated with clinicopathological features, including miR-26 high expression and N stage (p=.04), poor differentiation (p=.005) and recurrence (p=.007), miR-125b high expression and N stage (p=.0005) and death (p=.02), and low levels of miR-203 and N stage (p=.04). The high expression of miR-26 was associated with shortened disease-free survival, and high miR-125b expression was an independent risk factor for poor disease-specific survival. ConclusionsThese findings suggest that miR-26 and miR-125b may be associated with the progression and metastasis of HNSCC and that miR-203 is associated with a more favorable prognosis.
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