Format

Send to

Choose Destination
Nat Commun. 2016 Jun 15;7:11958. doi: 10.1038/ncomms11958.

Microvesicles provide a mechanism for intercellular communication by embryonic stem cells during embryo implantation.

Author information

1
Department of Molecular Medicine, Cornell University, Ithaca, New York 14853, USA.
2
Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, USA.
3
Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA.

Abstract

Communication between the inner cell mass (ICM) and the trophoblast layer of the blastocyst is known to occur, but its functional consequences on early developmental events is unclear. Here we demonstrate that embryonic stem (ES) cells derived from the ICM generate and shed microvesicles (MVs), a major class of extracellular vesicles (EVs), which influence trophoblast behaviour during the implantation process. The MV cargo proteins laminin and fibronectin interact with integrins along the surfaces of the trophoblasts, triggering the activation of two signalling kinases, JNK and FAK, and stimulating trophoblast migration. We further show that injecting MVs isolated from ES cells into blastocysts results in an increase in their implantation efficiency. Thus, these findings highlight a unique mechanism by which ES cells communicate with trophoblasts within the blastocyst to increase their ability to migrate into the uterus, thereby promoting one of the earliest and most important steps during pregnancy.

PMID:
27302045
PMCID:
PMC4912619
DOI:
10.1038/ncomms11958
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Nature Publishing Group Icon for PubMed Central
Loading ...
Support Center