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Interferon stimulated gene 15 expression at the human embryo−maternal interface

Schanz, Andrea, Baston-Büst, Dunja M., Heiss, Christian, Beyer, Ines M., Krüssel, Jan S. and Hess, Alexandra P. (2014) Interferon stimulated gene 15 expression at the human embryo−maternal interface Archives of Gynecology and Obstetrics, 290 (4). pp. 783-789.

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Abstract

Purpose

In early pregnancy the dialogue between maternal endometrium and embryo is a key process in establishing a receptive decidua and placental network. Decidual ISG15 induction is thought to promote pregnancy maintenance and development. ISG15 is involved in RNA splicing, cytoskeletal organization, stress response and further intracellular processes.

Methods

ISG15 expression was examined immunohistologically in paraffin-embedded human placental and decidual tissue samples of all pregnancy trimesters on adjacent sections (first trimester n = 5, second n = 5, third n = 3). Samples were processed using a protocol applying a rabbit polyclonal ISG15 antibody. A mouse monoclonal cytokeratin seven antibody was utilized to identify the different placental departments and decidual glands. Staining results and anatomical features were evaluated blindly with strict rating criteria.

Results

ISG15 expression was identified in first and second trimester tissue samples. ISG15 localized especially to the extravillous cytotrophoblasts in the maternal wall and in maternal blood vessel. Expression was detected in cytotrophoblast progenitor cells in the placental villi and the cell column with a maximum in the first trimester. The syncytial layer stained positive in first and second trimester samples. Third trimester samples showed no expression of ISG15 at all.

Conclusions

ISG15 abundance in the human placenta is an interesting finding, with implications for placental development, fetal growth and potential defense mechanism against infections. The maximal expression of ISG15 in the first and second trimester of pregnancy suggests that ISG function is needed when placental and embryo development is enormous and embryo susceptibility to external influences is high.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Biosciences and Medicine > Department of Clinical and Experimental Medicine
Faculty of Health and Medical Sciences > School of Health Sciences
Faculty of Health and Medical Sciences
Authors :
NameEmailORCID
Schanz, Andrea
Baston-Büst, Dunja M.
Heiss, Christianc.heiss@surrey.ac.uk
Beyer, Ines M.
Krüssel, Jan S.
Hess, Alexandra P.
Date : 5 July 2014
Identification Number : 10.1007/s00404-014-3290-9
Copyright Disclaimer : © Springer-Verlag Berlin Heidelberg 2014
Uncontrolled Keywords : ISG15; Implantation; Placenta; Cytotrophoblast
Depositing User : Diane Maxfield
Date Deposited : 17 Aug 2018 16:01
Last Modified : 17 Aug 2018 16:01
URI: http://epubs.surrey.ac.uk/id/eprint/849039

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