Yonsei Med J.  2016 Mar;57(2):298-305. 10.3349/ymj.2016.57.2.298.

The Expression of MicroRNA-155 in Plasma and Tissue Is Matched in Human Laryngeal Squamous Cell Carcinoma

Affiliations
  • 1Department of Otolaryngol Head Neck Surgery, General Hospital of Tianjin Medical University, Tianjin, China.
  • 2Department of Otolaryngol Head Neck Surgery, Tianjin First Central Hospital, Tianjin, China. dr_shiwenjie@hotmail.com

Abstract

PURPOSE
Tumor-associated microRNAs have been detected in cancer, though whether plasma microRNA-155 (miR-155) could be a potential biomarker for laryngeal squamous cell carcinoma (LSCC) prognosis is unclear. We aimed to determine how miR-155 can be used to predict the clinical characteristics of patients with LSCC and correctly diagnose them.
MATERIALS AND METHODS
We collected tissue samples and peripheral blood samples before and after treatment from 280 LSCC cases and 560 controls. Real-time quantitative reverse transcription PCR was employed in this study to compare the relative expression of miR-155.
RESULTS
A total of 280 LSCC patients and 560 age- and sex-matched controls were included in the study. The miR-155 level was more up-regulated in LSCC tissue than in the non-tumor tissues (13.6+/-2.4 vs. 3.1+/-0.80, p<0.001). Additionally, a significantly higher miR-155 level in plasma samples from LSCC patients than in those of the controls (8.9+/-1.25 vs. 1.8+/-0.8, p<0.001) was reported. Tissue miR-155 showed an area under the curve (AUC) of 0.933, with a sensitivity of 82.6% and a specificity of 89.2%. The AUC for plasma miR-155 was 0.757, with a sensitivity of 58.4% and a specificity of 69.5%. When early LSCC in TNM I stage was considered, tissue miR-155 showed an area under the curve of 0.804, with a sensitivity of 85.2% and a specificity of 87.3%.
CONCLUSION
The expression of tissue and plasma miR-155 were significantly up-regulated in patients with LSCC. Our work will serve as a basis for further investigation, preferably large-scale validation in clinical trials.

Keyword

MiR-155; laryngeal squamous cell carcinoma; diagnosis; biomarker

MeSH Terms

Aged
Biomarkers, Tumor/blood/*genetics
Carcinoma, Squamous Cell/blood/diagnosis/*genetics
Case-Control Studies
Early Diagnosis
Female
Gene Expression Profiling
Gene Expression Regulation, Neoplastic
Head and Neck Neoplasms
Humans
Laryngeal Neoplasms/blood/diagnosis/*genetics
Male
MicroRNAs/*blood
Middle Aged
Prognosis
Real-Time Polymerase Chain Reaction
Up-Regulation
Biomarkers, Tumor
MicroRNAs
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