Screening of microRNA in patients with esophageal cancer at same tumor node metastasis stage with different prognoses

Asian Pac J Cancer Prev. 2013;14(1):139-43. doi: 10.7314/apjcp.2013.14.1.139.

Abstract

Patients at the same pathological stage of esophageal cancer (EC) that received the same surgical therapy by the same surgeon may have distinct prognoses. The current study aimed to explore the possibility of differentially- expressed microRNAs (miRNAs) underlying this phenomenon. Samples were collected from EC patients at the same tumor node metastasis (TNM) stage but with different prognoses. Paracancerous normal tissues were taken as controls. The specimens were histopathologically analyzed. Differentially-expressed miRNAs were analyzed using real-time quantitative reverse transcription polymerase chain reaction. Compared with patients with poor prognosis, those with good prognosis exhibited 88 two-fold or more than two-fold increased miRNA fragments and 4 half-decreased miRNAs. The most noticeably up-regulated miRNAs included hsa-miR-31, hsa-miR- 196b, hsa-miR-652, hsa-miR-125a-5p, hsa-miR-146b, hsa-miR-200c, hsa-miR-23b, hsa-miR-29a, hsa-miR-186, hsa-miR-205, hsa-miR-376a, hsa-miR-410, hsa-miR-532-3p, and hsa-miR-598, whereas the most significantly- downregulated miRNAs were hsa-let-7e, hsa-miR-130b, and hsa-miR-103. EC patients at same TNM stage but with different prognoses show differentially-expressed miRNAs.

MeSH terms

  • Carcinoma, Squamous Cell / genetics*
  • Carcinoma, Squamous Cell / pathology*
  • Esophageal Neoplasms / genetics*
  • Esophageal Neoplasms / pathology*
  • Female
  • Gene Expression Profiling
  • Gene Expression*
  • Humans
  • Male
  • MicroRNAs / genetics*
  • Middle Aged
  • Neoplasm Staging
  • Oligonucleotide Array Sequence Analysis
  • Prognosis

Substances

  • MicroRNAs