Human Cytomegalovirus Infection Changes the Pattern of Surface Markers of Small Extracellular Vesicles Isolated From First Trimester Placental Long-Term Histocultures.
congenital infection
early placenta
extracellular vesicles
human cytomegalovirus
placental histoculture
Journal
Frontiers in cell and developmental biology
ISSN: 2296-634X
Titre abrégé: Front Cell Dev Biol
Pays: Switzerland
ID NLM: 101630250
Informations de publication
Date de publication:
2021
2021
Historique:
received:
31
03
2021
accepted:
28
07
2021
entrez:
27
9
2021
pubmed:
28
9
2021
medline:
28
9
2021
Statut:
epublish
Résumé
Extracellular vesicles (EVs) have increasingly been recognized as key players in a wide variety of physiological and pathological contexts, including during pregnancy. Notably, EVs appear both as possible biomarkers and as mediators involved in the communication of the placenta with the maternal and fetal sides. A better understanding of the physiological and pathological roles of EVs strongly depends on the development of adequate and reliable study models, specifically at the beginning of pregnancy where many adverse pregnancy outcomes have their origin. In this study, we describe the isolation of small EVs from a histoculture model of first trimester placental explants in normal conditions as well as upon infection by human cytomegalovirus. Using bead-based multiplex cytometry and electron microscopy combined with biochemical approaches, we characterized these small EVs and defined their associated markers and ultrastructure. We observed that infection led to changes in the expression level of several surface markers, without affecting the secretion and integrity of small EVs. Our findings lay the foundation for studying the functional role of EVs during early pregnancy, along with the identification of new predictive biomarkers for the severity and outcome of this congenital infection, which are still sorely lacking.
Identifiants
pubmed: 34568315
doi: 10.3389/fcell.2021.689122
pmc: PMC8461063
doi:
Types de publication
Journal Article
Langues
eng
Pagination
689122Informations de copyright
Copyright © 2021 Bergamelli, Martin, Bénard, Ausseil, Mansuy, Hurbain, Mouysset, Groussolles, Cartron, Tanguy le Gac, Moinard, Suberbielle, Izopet, Tscherning, Raposo, Gonzalez-Dunia, D’Angelo and Malnou.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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