Journal
REPRODUCTIVE SCIENCES
Volume 28, Issue 2, Pages 305-320Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s43032-020-00364-7
Keywords
Trophoblast; Integrin; Cadherin; Immunoglobulin; Nectin; Selectin; Claudin; Occludin; Connexin; Preeclampsia
Categories
Funding
- National Key Research and Development Program of China [2018 YFC1004401]
- National Natural Science Foundation of China [81671493]
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Placentation is crucial for the success of pregnancy, and is regulated by molecules such as cell adhesion molecules, tight junctions, and gap junctions. Dysregulated expression of these molecules during placentation may lead to obstetric complications. This highlights the potential of these molecules as therapeutic targets for diseases related to malplacentation.
Placentation is a major determinant of the success of pregnancy. It is regulated by several factors such as cell adhesion molecules, tight junctions, and gap junctions. The cell adhesion molecules are integrins, cadherins, immunoglobulins, nectins, and selectins. The tight junctions are composed of claudins, occludin, and junction adhesion molecule proteins while the gap junctions are composed of connexins of varying molecular weights. During placentation, some of these molecules regulate trophoblast proliferation, trophoblast fusion, trophoblast migration, trophoblast invasion, trophoblast-endothelium adhesion, glandular remodeling, and spiral artery remodeling. There is a dysregulated placental expression of some of these molecules during obstetric complications. We have, hereby, indicated the expression patterns of the subunits of each of these molecules in the various trophoblast subtypes and in the decidua, and have highlighted their involvement in physiological and pathological placentation. The available evidence points to the relevance of these molecules as distinguishing markers of the various trophoblast lineages and as potential therapeutic targets in the management of malplacentation-mediated diseases.
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