학술논문
Discovery and verification of extracellular microRNA biomarkers for diagnostic and prognostic assessment of preeclampsia at triage
Document Type
article
Author
Morey, Robert; Poling, Lara; Srinivasan, Srimeenakshi; Martinez-King, Carolina; Anyikam, Adanna; Zhang-Rutledge, Kathy; To, Cuong; Hakim, Abbas; Mochizuki, Marina; Verma, Kajal; Mason, Antoinette; Tran, Vy; Meads, Morgan; Lamale-Smith, Leah; Roeder, Hilary; Horii, Mariko; Ramos, Gladys A; DeHoff, Peter; Parast, Mana M; Pantham, Priyadarshini; Laurent, Louise C
Source
Science Advances. 9(51)
Subject
Language
Abstract
We report on the identification of extracellular miRNA (ex-miRNA) biomarkers for early diagnosis and prognosis of preeclampsia (PE). Small RNA sequencing of maternal serum prospectively collected from participants undergoing evaluation for suspected PE revealed distinct patterns of ex-miRNA expression among different categories of hypertensive disorders in pregnancy. Applying an iterative machine learning method identified three bivariate miRNA biomarkers (miR-522-3p/miR-4732-5p, miR-516a-5p/miR-144-3p, and miR-27b-3p/let-7b-5p) that, when applied serially, distinguished between PE cases of different severity and differentiated cases from controls with a sensitivity of 93%, specificity of 79%, positive predictive value (PPV) of 55%, and negative predictive value (NPV) of 89%. In a small independent validation cohort, these ex-miRNA biomarkers had a sensitivity of 91% and specificity of 57%. Combining these ex-miRNA biomarkers with the established sFlt1:PlGF protein biomarker ratio performed better than either set of biomarkers alone (sensitivity of 89.4%, specificity of 91.3%, PPV of 95.5%, and NPV of 80.8%).