A1 Refereed original research article in a scientific journal
Vascular Adhesion Protein-1 Determines the Cellular Properties of Endometrial Pericytes
Authors: Gharanei Seley, Fishwick Katherine, Durairaj Ruban Peter, Jin Tianrong, Siamantouras Eleftherios, Liu Kuo-Kang, Straube Anne, Lucas Emma S, Weston Christopher J, Rantakari Pia, Salmi Marko, Jalkanen Sirpa, Brosens Jan J, Tan Bee Kang
Publisher: FRONTIERS MEDIA SA
Publication year: 2021
Journal: Frontiers in cell and developmental biology
Journal name in source: FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
Journal acronym: FRONT CELL DEV BIOL
Article number: ARTN 621016
Volume: 8
Number of pages: 11
ISSN: 2296-634X
DOI: https://doi.org/10.3389/fcell.2020.621016
Web address : https://www.frontiersin.org/articles/10.3389/fcell.2020.621016/full
Self-archived copy’s web address: https://research.utu.fi/converis/portal/Publication/53390372
Vascular adhesion protein-1 (VAP-1) is an inflammation-inducible adhesion molecule and a primary amine oxidase involved in immune cell trafficking. Leukocyte extravasation into tissues is mediated by adhesion molecules expressed on endothelial cells and pericytes. Pericytes play a major role in the angiogenesis and vascularization of cycling endometrium. However, the functional properties of pericytes in the human endometrium are not known. Here we show that pericytes surrounding the spiral arterioles in midluteal human endometrium constitutively express VAP-1. We first characterize these pericytes and demonstrate that knockdown of VAP-1 perturbed their biophysical properties and compromised their contractile, migratory, adhesive and clonogenic capacities. Furthermore, we show that loss of VAP-1 disrupts pericyte-uterine natural killer cell interactions in vitro. Taken together, the data not only reveal that endometrial pericytes represent a cell population with distinct biophysical and functional properties but also suggest a pivotal role for VAP-1 in regulating the recruitment of innate immune cells in human endometrium. We posit that VAP-1 could serve as a potential biomarker for pregnancy pathologies caused by a compromised perivascular environment prior to conception.
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