A microRNA profile associated with Opisthorchis viverrini-induced cholangiocarcinoma in tissue and plasma

Jordan Plieskatt, Gabriel Rinaldi, Yanjun Feng, Jin Peng, Samantha Easley, Xinying Jia, Jeremy Potriquet, Chawalit Pairojkul, Vajarabhongsa Bhudhisawasdi, Banchob Sripa, Paul J. Brindley, Jeffrey Bethony, Jason Mulvenna*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Citations (SciVal)

Abstract

Background: Intrahepatic cholangiocarcinoma (ICC) is a highly aggressive tumor of the bile duct, and a significant public health problem in East Asia, where it is associated with infection by the parasite Opisthorchis viverrini. ICC is often detected at an advanced stage and with a poor prognosis, making a biomarker for early detection a priority. Methods: We have comprehensively profiled miRNA expression levels in ICC tumor tissue using small RNA-Seq and validated these profiles using quantitative PCR on matched plasma samples. Results: Distinct miRNA profiles were associated with increasing histological differentiation of ICC tumor tissue. We also observed that histologically normal tissue adjacent to ICC tumor displayed miRNA expression profiles more similar to tumor than liver tissue from healthy donors. In plasma samples, an eight-miRNA signature associated with ICC, regardless of the degree of histological differentiation of its matched tissue, forming the basis of a circulating miRNA-based biomarker for ICC. Conclusions: The association of unique miRNA profiles with different ICC subtypes suggests the involvement of specific miRNAs during ICC tumor progression. In plasma, an eight-miRNA signature associated with ICC could form the foundation of an accessible (plasma-based) miRNA-based biomarker for the early detection of ICC.

Original languageEnglish
Article number309
JournalBMC Cancer
Volume15
Issue number1
DOIs
Publication statusPublished - 23 Apr 2015
Externally publishedYes

Keywords

  • Cholangiocarcinoma
  • Intrahepatic cholangiocarcinoma
  • MicroRNA
  • Opisthorchis viverrini
  • RNA-seq
  • Prognosis
  • Humans
  • Middle Aged
  • Molecular Sequence Annotation
  • Gene Expression Regulation, Neoplastic
  • Gene Expression Profiling
  • Cholangiocarcinoma/blood
  • Bile Duct Neoplasms/blood
  • Animals
  • MicroRNAs/blood
  • Biomarkers/blood
  • Female
  • Opisthorchis/pathogenicity

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