Molecular subtyping of hypertensive disorders of pregnancy

Hypertensive disorders of pregnancy (HDP), including preeclampsia, affect 1 in 6 pregnancies, are major contributors to maternal morbidity and mortality, yet lack precision medicine strategies. Analyzing transcriptomic data from a prospectively-collected diverse cohort (n = 9102), this study reveals distinct RNA subtypes in maternal blood, reclassifying clinical HDP phenotypes like early/late-onset preeclampsia. The placental gene PAPPA2 strongly predicts the most severe forms of preeclampsia in individuals without pre-existing high risk factors, months before symptoms, and its overexpression correlates with earlier delivery in a dose-dependent manner. Further, molecular subtypes characterized by immune genes are upregulated in less severe forms of HDP. These results reclassify HDP clinical phenotypes into two distinct molecular subtypes, placental-associated or immune-associated. Validation performance for placental-associated HDP yields an AUC of 0.88 in the advanced maternal age population without pre-existing high risk factors. Molecular subtypes create new opportunities to apply precision-based medicine in maternal health.

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Publication Details

Journal
Nature Communications
Published
2025-04-08
DOI
https://doi.org/10.1038/s41467-025-58157-y
Citations
17
Primary Topic
Pregnancy and preeclampsia studies
Type
article
Field-Weighted Citation Impact
34.97
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Molecular subtyping of hypertensive disorders of pregnancy

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Molecular subtyping of hypertensive disorders of pregnancy

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article en
17 citations

Abstract

Hypertensive disorders of pregnancy (HDP), including preeclampsia, affect 1 in 6 pregnancies, are major contributors to maternal morbidity and mortality, yet lack precision medicine strategies. Analyzing transcriptomic data from a prospectively-collected diverse cohort (n = 9102), this study reveals distinct RNA subtypes in maternal blood, reclassifying clinical HDP phenotypes like early/late-onset preeclampsia. The placental gene PAPPA2 strongly predicts the most severe forms of preeclampsia in individuals without pre-existing high risk factors, months before symptoms, and its overexpression correlates with earlier delivery in a dose-dependent manner. Further, molecular subtypes characterized by immune genes are upregulated in less severe forms of HDP. These results reclassify HDP clinical phenotypes into two distinct molecular subtypes, placental-associated or immune-associated. Validation performance for placental-associated HDP yields an AUC of 0.88 in the advanced maternal age population without pre-existing high risk factors. Molecular subtypes create new opportunities to apply precision-based medicine in maternal health.

Nature CommunicationsVol. 16(1)
University of North Carolina at Chapel Hill (US), Inova Health System (US), Brigham and Women's Hospital (US), Beth Israel Deaconess Medical Center (US), MultiCare Health System (US), Ochsner Health System (US), Harvard University (US), College of San Mateo (US), Thomas Jefferson University (US), Eastern Virginia Medical School (US), University of Pittsburgh (US), Washington University in St. Louis (US), AdventHealth Orlando (US), University of California System (US), University of California San Diego (US), Chan Zuckerberg Initiative (United States) (US), Women’s Health Care (US), International Women's Health Coalition (US), Woman's Hospital (US), The Ohio State University (US), The University of Texas Medical Branch at Galveston (US), Stanford University (US)
Good health and well-being
Openalex Percentile: Top 0%
Pregnancy and preeclampsia studies
34.97
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