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Lipid profile of circulating placental extracellular vesicles during pregnancy identifies foetal growth restriction risk.


ABSTRACT: Small-for-gestational age (SGA) neonates exhibit increased perinatal morbidity and mortality, and a greater risk of developing chronic diseases in adulthood. Currently, no effective maternal blood-based screening methods for determining SGA risk are available. We used a high-resolution MS/MSALL shotgun lipidomic approach to explore the lipid profiles of small extracellular vesicles (sEV) released from the placenta into the circulation of pregnant individuals. Samples were acquired from 195 normal and 41 SGA pregnancies. Lipid profiles were determined serially across pregnancy. We identified specific lipid signatures of placental sEVs that define the trajectory of a normal pregnancy and their changes occurring in relation to maternal characteristics (parity and ethnicity) and birthweight centile. We constructed a multivariate model demonstrating that specific lipid features of circulating placental sEVs, particularly during early gestation, are highly predictive of SGA infants. Lipidomic-based biomarker development promises to improve the early detection of pregnancies at risk of developing SGA, an unmet clinical need in obstetrics.

SUBMITTER: Klemetti MM 

PROVIDER: S-EPMC10865917 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature

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Lipid profile of circulating placental extracellular vesicles during pregnancy identifies foetal growth restriction risk.

Klemetti Miira M MM   Pettersson Ante B V ABV   Ahmad Khan Aafaque A   Ermini Leonardo L   Porter Tyler R TR   Litvack Michael L ML   Alahari Sruthi S   Zamudio Stacy S   Illsley Nicholas P NP   Röst Hannes H   Post Martin M   Caniggia Isabella I  

Journal of extracellular vesicles 20240201 2


Small-for-gestational age (SGA) neonates exhibit increased perinatal morbidity and mortality, and a greater risk of developing chronic diseases in adulthood. Currently, no effective maternal blood-based screening methods for determining SGA risk are available. We used a high-resolution MS/MS<sup>ALL</sup> shotgun lipidomic approach to explore the lipid profiles of small extracellular vesicles (sEV) released from the placenta into the circulation of pregnant individuals. Samples were acquired fro  ...[more]

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