Expression and localisation of thioredoxin during early implantation in the marmoset monkey

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Title Expression and localisation of thioredoxin during early implantation in the marmoset monkey
Author Lopata, A.; Sibson, M.C.; Enders, A.C.; Bloomfield, Kelly; Gregory, Mary Sarah-Jane; Di Trapani, Jenny; Perkins, Anthony Vincent; Tonissen, Kathryn Fay; Clarke, Francis Michael
Journal Name Molecular Human Reproduction
Editor R Ivell
Year Published 2001
Place of publication UK
Publisher Oxford University Press
Abstract Thioredoxin is a powerful redox protein expressed in invasive cytotrophoblasts and essential for blastocyst implantation in mice. Isolated marmoset thioredoxin cDNA showed that the deduced amino acid sequence differed from the human sequence by four amino acids. The close homology of thioredoxin in the two species enabled us to use monoclonal antibodies against human thioredoxin to detect marmoset thioredoxin in implantation sites, blastocysts and culture medium. Immunocytochemistry on marmoset implantation sites, on pregnancy days 12 and 15, showed that thioredoxin is highly expressed in uterine luminal epithelium, glands and in some endometrial stromal cells. In attached blastocysts, thioredoxin staining was detected in mural and polar trophoblast cells and both visceral and parietal endoderm, whereas no staining was present in the inner cell mass. A similar pattern of thioredoxin expression was detected in hatched blastocysts attached to Matrigel in tissue culture. Trophoblastic vesicles derived from blastocysts expressed thioredoxin in inner endoderm-like cells and outer trophoblast-like cells and secreted thioredoxin into the culture medium. These experiments have demonstrated thioredoxin expression during early stages of embryomaternal interaction. We propose that thioredoxin protects the early placenta from oxidative damage and that the marmoset is a valuable model for studying thioredoxin regulation and function during implantation and blastocyst differentiation.
Peer Reviewed Yes
Published Yes
Publisher URI http://molehr.oxfordjournals.org/cgi/content/full/7/12/1159
Alternative URI http://molehr.oxfordjournals.org/cgi/content/abstract/7/12/1159
Copyright Statement This is a pre-copy-editing, author-produced PDF of an article accepted for publication in [insert journal title] following peer review. The definitive publisher-authenticated version [insert complete citation information here] is available online at: http://molehr.oxfordjournals.org/cgi/reprint/7/12/1159
Volume 7
Issue Number 12
Page from 1159
Page to 1165
ISSN 1360-9947
Date Accessioned 2002-04-24
Language en_AU
Research Centre Griffith Health Institute
Subject Science & Technology
URI http://hdl.handle.net/10072/3628
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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