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A review of gene expression in porcine endometrial lymphocytes, endothelium and trophoblast during pregnancy success and failure

Tayade, C.(University of Guelph, Ontario (Canada)) ; Fang, Y ; Croy, B.A

Journal of Reproduction and Development, 2007, Vol.53(3), pp.455-463 [Periódico revisado por pares]

Japan: THE SOCIETY FOR REPRODUCTION AND DEVELOPMENT

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Título:
A review of gene expression in porcine endometrial lymphocytes, endothelium and trophoblast during pregnancy success and failure
Autor: Tayade, C.(University of Guelph, Ontario (Canada)) ; Fang, Y ; Croy, B.A
Assuntos: Angiogenesis ; ANIMAL EMBRYOS ; Animals ; BLOOD VESSELS ; CELLS ; CELLULE ; CELULAS ; CERDAS ; CITOQUINAS ; CYTOKINE ; CYTOKINES ; EMBRIONES ANIMALES ; Embryo Loss - immunology ; Embryo Loss - metabolism ; Embryo Loss - physiopathology ; EMBRYON ANIMAL ; Endometrium - blood supply ; Endometrium - immunology ; Endometrium - metabolism ; Endothelium - metabolism ; Endothelium - physiology ; Female ; Fetal Death - immunology ; Fetal Death - metabolism ; Fetal Death - physiopathology ; Fetal loss ; FETO ; FOETUS ; Gene Expression ; GESTACION ; GESTATION ; Killer Cells, Natural - physiology ; LINFOCITOS ; Litter Size - immunology ; Litter Size - physiology ; LYMPHOCYTE ; LYMPHOCYTES ; Lymphocytes - metabolism ; Lymphocytes - physiology ; Neovascularization, Physiologic - immunology ; Neovascularization, Physiologic - physiology ; PREGNANCY ; Pro-inflammatory cytokines ; SOWS ; Swine - immunology ; Swine - metabolism ; Swine - physiology ; Trophoblasts - metabolism ; Trophoblasts - physiology ; TRUIE ; Uterine natural killer cells ; UTERO ; UTERUS ; VAISSEAU SANGUIN ; VASOS SANGUINEOS
É parte de: Journal of Reproduction and Development, 2007, Vol.53(3), pp.455-463
Notas: 2008002628
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Descrição: Meat pig breeds used commercially in North America lose significant numbers of genetically-normal fetuses in the peri-implantation (attachment) period and at mid-gestation (day 50 of the ll4 day gestation interval). Fetal demand that is in excess to the placental blood supply is thought to underlie these waves of fetal loss. In many species, the endometrium of early normal pregnancy is enriched in innate immune cells, particularly uterine natural killer (uNK) cells. In pigs, a species with epitheliochorial placentation, conceptuses mediate about a three-fold enrichment in uNK cells at attachment sites but the functions of these cells are unknown. In species with hemochorial placentation, uNK cells are highly enriched during the process of decidualization and promote endometrial angiogenesis. We have conducted molecular analyses using pure samples of endometrial lymphocytes or endothelium and trophoblast from healthy and arresting conceptus attachment sites in Yorkshire gilts immediately post-attachment [gestation day (GD) 20] and at mid pregnancy (GD50). In healthy sites, angiogenesis was more robustly promoted by lymphocytes than by trophoblasts. An early sign of impending fetal arrest was loss of vascular endothelial growth factor (VEGF) transcription from the lymphocytes and elevation in transcription of the pro-inflammatory gene Interferon (IFN)-gamma. We have postulated that newly differentiated endometrial endothelial cells, not fetal trophoblasts, are damaged by the maternal withdrawal of vascular support and onset of inflammation and that this endometrial damage contributes significantly to peri-implantation fetal death.
Editor: Japan: THE SOCIETY FOR REPRODUCTION AND DEVELOPMENT
Idioma: Inglês

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A review of gene expression in porcine endometrial lymphocytes, endothelium and trophoblast during pregnancy success and failure

Tayade, C.(University of Guelph, Ontario (Canada)) ; Fang, Y ; Croy, B.A

Japan: THE SOCIETY FOR REPRODUCTION AND DEVELOPMENT

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