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Demonstration of the expression of CD95 ligand transcript and protein in human placenta
Zorzi, Willy; Thellin, Olivier; Coumans, Bernard et al.
1998In Placenta, 19 (4), p. 269-277
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Keywords :
tolerance; cd95; placenta
Abstract :
[en] Tolerance of the fetal allograft enables the human conceptus to implant itself into the maternal uterus and survive and grow there. This tolerance phenomenon remains largely obscure, notably because it appears to be controlled by multiple mechanisms. CD95 ligand (CD95-L), which can trigger death of CD95-positive cells by apoptosis, may participate in inducing anti-fetus-sensitized CD95-positive T lymphocytes to enter apoptosis. Using immunohistochemistry (first trimester and term placentae), FAGS assays (term placenta) and RT-PCR assays (term placenta), the presence of CD95-L protein and mRNA has been shown in crude placental tissue preparations and isolated placental cells. Among the latter, CD95-L expression was detected in trophoblastic cells, fetal blood cells (mRNA only) and also the Hofbauer macrophages. No CD95-L was detected in fibroblasts or fetal endothelial cells. Thus trophoblastic cells, Hofbauer macrophages, and perhaps also fetal blood cells could form a sequential barrier blocking maternal activated defence cells bearing CD95 molecules. (C) 1998 W. B. Saunders Company Ltd.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Zorzi, Willy ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Histologie humaine
Thellin, Olivier ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Histologie humaine
Coumans, Bernard ;  Université de Liège - ULiège > CNCM/ Centre fac. de rech. en neurobiologie cell. et moléc.
Mélot, France ;  Université de Liège - ULiège > Services généraux (Faculté de médecine) > Service administratif de la Faculté (Médecine)
Hennen, Georges ;  Centre Hospitalier Universitaire de Liège - CHU > Endocrinologie clinique
Lakaye, Bernard ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biochimie et physiologie humaine et pathologique
Igout, Ahmed ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Département des sciences biomédicales et précliniques
Heinen, Ernst ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Histologie humaine
Language :
English
Title :
Demonstration of the expression of CD95 ligand transcript and protein in human placenta
Publication date :
1998
Journal title :
Placenta
ISSN :
0143-4004
eISSN :
1532-3102
Publisher :
W.B. Saunders, London, United Kingdom
Volume :
19
Issue :
4
Pages :
269-277
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 22 September 2009

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