The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.
Human Endometrial Mucin MUC1 Is Up-Regulated by Progesterone and Down-Regulated In Vitro by the Human Blastocyst1
Abstract
Expression of MUC1 in endometrial epithelium has been suggested to create a barrier to embryo attachment that must be lifted at the time of implantation. In this study, we investigated the hormonal regulation of human endometrial MUC1 in hormone replacement therapy cycles and in the human blastocyst. We also analyzed the embryonic regulation of MUC1 in human endometrial epithelial cells (EECs) during the apposition and adhesion phases of human implantation using two different in vitro models. Our results indicate that endometrial MUC1 mRNA and immunoreactive protein increase in receptive endometrium compared to nonreceptive endometrium. Human blastocysts express MUC1, as demonstrated by reverse transcription-polymerase chain reaction and immunocytochemistry, localized at the trophectoderm. In vitro, MUC1 was present at the surface of primary cultures of human EEC, and presence of a human blastocyst (i.e., apposition phase) increases EEC MUC1 protein and mRNA compared to control EEC lacking embryos. Interestingly, when human blastocysts were allowed to attach to the EEC monolayer (i.e., adhesion phase), MUC1 was locally removed in a paracrine fashion on EEC at the implantation site. These results demonstrate a coordinated hormonal and embryonic regulation of EEC MUC1. Progesterone combined with estradiol priming induces an up-regulation of MUC1 at the receptive endometrium. During the apposition phase, presence of a human embryo increases EEC MUC1. However, at the adhesion phase, the embryo induces a paracrine cleavage of EEC MUC1 at the implantation site. These findings strongly suggest that MUC1 may act as an endometrial antiadhesive molecule that must be locally removed by the human blastocyst during the adhesion phase.
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Cites
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Cited by
Inflammation and pregnancy: the role of the immune system at the implantation site
Mor, G., Cardenas, I., Abrahams, V., & Guller, S. (2011) · Annals of the New York Academy of Sciences · doi:10.1111/j.1749-6632.2010.05938.x · Cited by 1,110
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REVIEW ARTICLE: Inflammation and Implantation
Dekel, N., Gnainsky, Y., Granot, I., & Mor, G. (2010) · American Journal of Reproductive Immunology · doi:10.1111/j.1600-0897.2009.00792.x · Cited by 302
Control of human trophoblast function
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Metadata
- Authors
- Meseguer, M., Aplin, J. D., Caballero-Campo, P., O’Connor, J. E., Martín, J. C., Remohí, J., Pellicer, A., & Simón, C.
- Venue
- Biology of Reproduction
- Publisher
- Oxford University Press (OUP)
- Published
- 2001-02-01
- Volume
- 64
- Issue
- 2
- Pages
- 590-601
- ISSN
- 0006-3363 (ISSN-L)
- 1529-7268
- OpenAlex
- W2153653822
- Cited by
- 326
- References
- 38
- FWCI
- 5.32
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Human Endometrial Mucin MUC1 Is Up-Regulated by Progesterone and Down-Regulated In Vitro by the Human Blastocyst1. https://app.cochat.ai/papers/10.1095/biolreprod64.2.590
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- Meseguer, M., Aplin, J. D., Caballero-Campo, P., O’Connor, J. E., Martín, J. C., Remohí, J., Pellicer, A., & Simón, C. (2001). Human Endometrial Mucin MUC1 Is Up-Regulated by Progesterone and Down-Regulated In Vitro by the Human Blastocyst1. Biology of Reproduction. https://doi.org/10.1095/biolreprod64.2.590
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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