TY  - JOUR
AU  - Biró, Orsolya
AU  - Alasztics, Bálint
AU  - Molvarec, Attila
AU  - Joó, József Gábor
AU  - Nagy, Bálint
AU  - Rigó, János
TI  - Various levels of circulating exosomal total-miRNA and miR-210 hypoxamiR in different forms of pregnancy hypertension
JF  - PREGNANCY HYPERTENSION
J2  - PREGNANCY HYPERTENS
VL  - 10
PY  - 2017
SP  - 207
EP  - 212
PG  - 6
SN  - 2210-7789
DO  - 10.1016/j.preghy.2017.09.002
UR  - https://m2.mtmt.hu/api/publication/3273020
ID  - 3273020
AB  - Introduction: Hypertension is a common complication during pregnancy, affecting 10% of pregnant women worldwide. Several microRNA (miRNA) were shown to be involved in hypertensive disorders of pregnancy. In preeclampsia (PE), placental dysfunction causes the enhanced release of extracellular vesicle-derived miRNAs. The hypoxia-sensitive hsa-mir-210 is the most common PE-associated miRNA, but its exosomal profile has not been investigated. Objectives: Our aims were to measure exosomal total-miRNA concentration and to perform expression analysis of circulating exosomal hsa-miR-210 in women affected by chronic hypertension (CHT) gestational hypertension (GHT) or PE. Materials and methods: We collected plasma samples from women with CHT, GHT, PE (moderate: mPE and severe: sPE) and from normotensive pregnancies. Exosomal miRNAs were extracted and miRNA concentration was measured. RT-PCR was carried out with hsa-miR-210-3p-specific primers and relative expression was calculated using the comparative Ct method. Results: The total-miRNA concentration was different in the disease subgroups, and was significantly higher in mPE and sPE compared to the other groups. We found a significant difference in the relative exosomal hsa-miR-210-3p expression between all hypertensive groups compared to the normotensive samples, but significant upregulation was only observed in case of mPE and sPE patients. Both the level of total-miRNA and hsa-miR-210 expression was higher in case of severe PE. Conclusions: The level of circulating exosomal total-miRNA and hsa-miR-210 was elevated in women with PE, and it was higher in the severe form. We showed that hsa-miR-210 is secreted via exosomes, which may have a role in the pathomechanism of the disease. © 2017 International Society for the Study of Hypertension in Pregnancy.
LA  - English
DB  - MTMT
ER  -