학술논문

Circulating trophoblast cell clusters for early detection of placenta accreta spectrum disorders.
Document Type
article
Source
Nature communications. 12(1)
Subject
Trophoblasts
Humans
Placenta Accreta
Diagnosis
Differential
Cohort Studies
Reproducibility of Results
ROC Curve
Cell Aggregation
Pregnancy
Nanostructures
Adult
Middle Aged
Female
Placenta Previa
Lab-On-A-Chip Devices
Maternal Serum Screening Tests
Biomarkers
Language
Abstract
Placenta accreta spectrum (PAS) is a high-risk obstetrical condition associated with significant morbidity and mortality. Current clinical screening modalities for PAS are not always conclusive. Here, we report a nanostructure-embedded microchip that efficiently enriches both single and clustered circulating trophoblasts (cTBs) from maternal blood for detecting PAS. We discover a uniquely high prevalence of cTB-clusters in PAS and subsequently optimize the device to preserve the intactness of these clusters. Our feasibility study on the enumeration of cTBs and cTB-clusters from 168 pregnant women demonstrates excellent diagnostic performance for distinguishing PAS from non-PAS. A logistic regression model is constructed using a training cohort and then cross-validated and tested using an independent cohort. The combined cTB assay achieves an Area Under ROC Curve of 0.942 (throughout gestation) and 0.924 (early gestation) for distinguishing PAS from non-PAS. Our assay holds the potential to improve current diagnostic modalities for the early detection of PAS.