Human Blastocyst Secreted microRNA Regulate Endometrial Epithelial Cell Adhesion
AuthorCuman, C; Van Sinderen, M; Gantier, MP; Rainczuk, K; Sorby, K; Rombauts, L; Osianlis, T; Dimitriadis, E
PublisherELSEVIER SCIENCE BV
University of Melbourne Author/sDimitriadis, Evdokia
AffiliationObstetrics and Gynaecology
Document TypeJournal Article
CitationsCuman, C., Van Sinderen, M., Gantier, M. P., Rainczuk, K., Sorby, K., Rombauts, L., Osianlis, T. & Dimitriadis, E. (2015). Human Blastocyst Secreted microRNA Regulate Endometrial Epithelial Cell Adhesion. EBIOMEDICINE, 2 (10), pp.1528-1535. https://doi.org/10.1016/j.ebiom.2015.09.003.
Access StatusOpen Access
Successful embryo implantation requires synchronous development and communication between the blastocyst and the endometrium, however the mechanisms of communication in humans are virtually unknown. Recent studies have revealed that microRNAs (miRs) are present in bodily fluids and secreted by cells in culture. We have identified that human blastocysts differentially secrete miRs in a pattern associated with their implantation outcome. miR-661 was the most highly expressed miR in blastocyst culture media (BCM) from blastocysts that failed to implant (non-implanted) compared to blastocysts that implanted (implanted). Our results indicate a possible role for Argonaute 1 in the transport of miR-661 in non-implanted BCM and taken up by primary human endometrial epithelial cells (HEECs). miR-661 uptake by HEEC reduced trophoblast cell line spheroid attachment to HEEC via PVRL1. Our results suggest that human blastocysts alter the endometrial epithelial adhesion, the initiating event of implantation, via the secretion of miR, abnormalities in which result in implantation failure.
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