We compared the expression profiles of α2,3- and α2,6-sialoglycans in the glycocalyx of the placental barrier structures in early and late forms of preeclampsia and fetal growth restriction using the method of lectin histochemistry. It was found that the expression of α2,3-sialoglycans in the syncytiotrophoblast and fetal endothelium of the terminal villi of the placenta was reduced in preeclampsia in comparison with normal placenta and, on the contrary, was increased in fetal growth restriction. Significant differences were found in both clinical phenotypes of preeclampsia and fetal growth restriction. Changes in the expression pattern of α2,6-sialoglycans in the endothelium of terminal villi were more pronounced than in syncytiotrophoblast. In early and late-onset preeclampsia, a significant increase in the expression of α2,6-sialoglycans was revealed only in the fetal endothelium; in early fetal growth restriction, the expression of α2,6-sialoglycans was reduced in the endothelium, but increased in syncytiotrophoblast in late fetal growth restriction. The features of the expression of sialoglycans in structures of the placental barrier in preeclampsia and fetal growth restriction were revealed, which may indicate the pathogenetic involvement of sialoglycans in the inflammatory activation cascade in fetal growth restriction, and in preeclampsia, apparently, they are associated with impaired fetal tolerance.
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http://dx.doi.org/10.1007/s10517-022-05532-0 | DOI Listing |
Arch Public Health
January 2025
School of Women's and Children's Health, University of New South Wales Sydney, Kensington, Australia.
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Laboratory of Veterinary Infectious Disease, College of Veterinary of Medicine, Jeonbuk National University, Iksan, Jeonbuk, 54596, Republic of Korea.
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View Article and Find Full Text PDFEpigenetics Chromatin
January 2025
Department of Maternal‑Fetal Biology, National Center for Child Health and Development, Tokyo, 157‑8535, Japan.
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View Article and Find Full Text PDFJ Transl Med
January 2025
Department of Anatomy & Embryology, Leiden University Medical Center, P.O. Box 9600, Postal Zone: S-1-P, 2300 RC, Leiden, The Netherlands.
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View Article and Find Full Text PDFBMC Womens Health
January 2025
Global Health Nursing, Graduate School of Nursing Science, St. Luke's International University, 10-1 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan.
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