eLife (Oct 2017)

Diagnostic potential for a serum miRNA neural network for detection of ovarian cancer

  • Kevin M Elias,
  • Wojciech Fendler,
  • Konrad Stawiski,
  • Stephen J Fiascone,
  • Allison F Vitonis,
  • Ross S Berkowitz,
  • Gyorgy Frendl,
  • Panagiotis Konstantinopoulos,
  • Christopher P Crum,
  • Magdalena Kedzierska,
  • Daniel W Cramer,
  • Dipanjan Chowdhury

DOI
https://doi.org/10.7554/eLife.28932
Journal volume & issue
Vol. 6

Abstract

Read online

Recent studies posit a role for non-coding RNAs in epithelial ovarian cancer (EOC). Combining small RNA sequencing from 179 human serum samples with a neural network analysis produced a miRNA algorithm for diagnosis of EOC (AUC 0.90; 95% CI: 0.81–0.99). The model significantly outperformed CA125 and functioned well regardless of patient age, histology, or stage. Among 454 patients with various diagnoses, the miRNA neural network had 100% specificity for ovarian cancer. After using 325 samples to adapt the neural network to qPCR measurements, the model was validated using 51 independent clinical samples, with a positive predictive value of 91.3% (95% CI: 73.3–97.6%) and negative predictive value of 78.6% (95% CI: 64.2–88.2%). Finally, biologic relevance was tested using in situ hybridization on 30 pre-metastatic lesions, showing intratumoral concentration of relevant miRNAs. These data suggest circulating miRNAs have potential to develop a non-invasive diagnostic test for ovarian cancer.

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