Trimester-specific Plasma Exosome MicroRNA Expression Profiles in Preeclampsia
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To identify microRNAs (miRNAs) differentially expressed in plasma exosomes collected in women diagnosed with preeclampsia compared with women with uncomplicated pregnancies. Exosomes were purified from plasma samples obtained at each trimester from four women subsequently diagnosed with preeclampsia and from five matched healthy controls. RNA was purified from the exosomes, and expression of 368 miRNAs was profiled using A-Set TaqMan low density array (TLDA). One-third of the 368 miRNAs profiled are not expressed in exosomes. Further, those that are not expressed tend to be evolutionarily younger and have a significantly different mature sequence signature than do miRNAs that are expressed in exosomes. Among miRNAs that are expressed in exosomes, a total of eight (, , and ) were found to display statistically significant differential expression between women who developed preeclampsia as compared with those who did not. Moreover, half of these miRNAs (, , and ) displayed statistically significant differential expression in the first trimester. Not all miRNAs are expressed in exosomes. Those that tend to be evolutionarily older and have a significantly different mature sequence signature than those that are not. A few exosome-expressed miRNAs do display expression patterns in women subsequently diagnosed with preeclampsia that are significantly different than in women having an uncomplicated and, among these, several appear in the first trimester. These miRNAs are potential early markers of preeclampsia risk.
Timofeeva A, Fedorov I, Tarasova A, Sukhova Y, Kolodko V, Ivanets T Biomolecules. 2025; 15(2).
PMID: 40001531 PMC: 11852485. DOI: 10.3390/biom15020228.
EV-miRNA associated with environmental air pollution exposures in the MADRES cohort.
Foley H, Eckel S, Yang T, Vigil M, Chen X, Marsit C Environ Epigenet. 2024; 10(1):dvae019.
PMID: 39529802 PMC: 11552520. DOI: 10.1093/eep/dvae019.
Gal L, Fothi A, Orosz G, Nagy S, Than N, Orban T Front Immunol. 2024; 15:1321191.
PMID: 38455065 PMC: 10917917. DOI: 10.3389/fimmu.2024.1321191.
Early prediction of pre-eclampsia using circulating placental exosomes: Newer insights.
Rao A, Shinde U, Das D, Balasinor N, Madan T Indian J Med Res. 2023; 158(4):385-396.
PMID: 37987999 PMC: 10793818. DOI: 10.4103/ijmr.ijmr_2143_22.
The Long Journey of Extracellular Vesicles towards Global Scientific Acclamation.
Pirisinu M Adv Pharm Bull. 2023; 13(3):489-501.
PMID: 37646064 PMC: 10460810. DOI: 10.34172/apb.2023.049.