Publication Date:
2003-01-18
Description:
Trophoblast adhesion to the uterine wall is the requisite first step of implantation and, subsequently, placentation. At the maternal-fetal interface, we investigated the expression of selectin adhesion systems that enable leukocyte capture from the bloodstream. On the maternal side, human uterine epithelial cells up-regulated selectin oligosaccharide-based ligands during the window of receptivity. On the fetal side, human trophoblasts expressed L-selectin. This ligand-receptor system was functional, because beads coated with the selectin ligand 6-sulfo sLe(x) bound to trophoblasts, and trophoblasts bound to ligand-expressing uterine luminal epithelium in tissue sections. These results suggest that trophoblast L-selectin mediates interactions with the uterus and that this adhesion mechanism may be critical to establishing human pregnancy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Genbacev, Olga D -- Prakobphol, Akraporn -- Foulk, Russell A -- Krtolica, Ana R -- Ilic, Dusko -- Singer, Mark S -- Yang, Zhi-Qiang -- Kiessling, Laura L -- Rosen, Steven D -- Fisher, Susan J -- DE 07244/DE/NIDCR NIH HHS/ -- HL 64597/HL/NHLBI NIH HHS/ -- R37GM23547/GM/NIGMS NIH HHS/ -- U01 HD 42283/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2003 Jan 17;299(5605):405-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Stomatology, Anatomy, and Pharmaceutical Chemistry, University of California, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12532021" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Antibodies
;
Blastocyst/physiology
;
Cell Adhesion
;
Cells, Cultured
;
*Embryo Implantation
;
Endometrium/cytology/metabolism/*physiology
;
Epithelial Cells/metabolism
;
Female
;
Follicular Phase
;
Humans
;
Immunoblotting
;
Jurkat Cells
;
L-Selectin/immunology/*metabolism
;
Ligands
;
Luteal Phase
;
Mice
;
Microspheres
;
Oligosaccharides/*metabolism
;
Organ Culture Techniques
;
Pregnancy
;
Trophoblasts/metabolism/*physiology
;
Up-Regulation
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
