Panel of serum miRNAs as potential non-invasive biomarkers for pancreatic ductal adenocarcinoma

Sci Rep. 2021 Feb 2;11(1):2824. doi: 10.1038/s41598-021-82266-5.

Abstract

Early-stage diagnosis of pancreatic ductal adenocarcinoma (PDAC) is difficult due to non-specific symptoms. Circulating miRNAs in body fluids have been emerging as potential non-invasive biomarkers for diagnosis of many cancers. Thus, this study aimed to assess a panel of miRNAs for their ability to differentiate PDAC from chronic pancreatitis (CP), a benign inflammatory condition of the pancreas. Next-generation sequencing was performed to identify miRNAs present in 60 FFPE tissue samples (27 PDAC, 23 CP and 10 normal pancreatic tissues). Four up-regulated miRNAs (miR-215-5p, miR-122-5p, miR-192-5p, and miR-181a-2-3p) and four down-regulated miRNAs (miR-30b-5p, miR-216b-5p, miR-320b, and miR-214-5p) in PDAC compared to CP were selected based on next-generation sequencing results. The levels of these 8 differentially expressed miRNAs were measured by qRT-PCR in 125 serum samples (50 PDAC, 50 CP, and 25 healthy controls (HC)). The results showed significant upregulation of miR-215-5p, miR-122-5p, and miR-192-5p in PDAC serum samples. In contrast, levels of miR-30b-5p and miR-320b were significantly lower in PDAC as compared to CP and HC. ROC analysis showed that these 5 miRNAs can distinguish PDAC from both CP and HC. Hence, this panel can serve as a non-invasive biomarker for the early detection of PDAC.

Publication types

  • Observational Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Biomarkers, Tumor / blood*
  • Biomarkers, Tumor / metabolism
  • Carcinoma, Pancreatic Ductal / blood
  • Carcinoma, Pancreatic Ductal / diagnosis*
  • Carcinoma, Pancreatic Ductal / genetics
  • Case-Control Studies
  • Circulating MicroRNA / blood*
  • Circulating MicroRNA / metabolism
  • Diagnosis, Differential
  • Down-Regulation
  • Feasibility Studies
  • Female
  • Gene Expression Regulation, Neoplastic
  • Healthy Volunteers
  • High-Throughput Nucleotide Sequencing
  • Humans
  • Liquid Biopsy / methods
  • Male
  • Middle Aged
  • Pancreas / pathology
  • Pancreatic Neoplasms / blood
  • Pancreatic Neoplasms / diagnosis*
  • Pancreatic Neoplasms / genetics
  • Pancreatic Neoplasms / pathology
  • Pancreatitis, Chronic / blood
  • Pancreatitis, Chronic / diagnosis*
  • Pancreatitis, Chronic / genetics
  • Pancreatitis, Chronic / pathology
  • ROC Curve
  • Up-Regulation
  • Young Adult

Substances

  • Biomarkers, Tumor
  • Circulating MicroRNA