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|Title:||The trophoblast as an integral component of a macrophage-cytokine network|
|Citation:||Immunology and Cell Biology, 1993; 71(1):49-57|
|Publisher:||Nature Publishing Group|
|Larry Guilbert, Sarah A Robertson and Thomas G Wegmann|
|Abstract:||The trophoblast, an epithelial cell of fetal origin that forms the physical barrier between the mother and developing conceptus, becomes a component of the host immune system during pregnancy. Of the classical immune cells, it most closely resembles the macrophage, also present in high numbers in the pregnant uterus. The macrophage and trophoblast, as cell classes, share characteristics such as phagocytosis, cyncytialization, invasiveness, expression of the proteins CD4, CD14, IgG receptor (FcR), non-specific esterase, granulocyte macrophage-CSF (GM-CSF), colony stimulating factor 1 (CSF-1), interleukin-1 (IL-1), interleukin-6 (IL-6), tumour necrosis factor (TNF-α), transforming growth factors (TGF), platelet-α derived growth factor (PDGF) and receptors for these cytokines. In the uterus both cell types appear regulated by a common element, the uterine epithelium, that secretes cytokines such as CSF-1, GM-CSF, TNFα, TGFβ, IL-6, and leukaemia inhibitory factor (LIF) that target both macrophages and trophoblasts. The common characteristics and regulation that make teleological sense in terms of co-ordinating local uterine immunity during pregnancy may also be important in transmission of congenital diseases such as AIDS. The production by the uterine epithelium of a number of cytokines previously only associated with mononuclear phagocyte production and function predicts the existence of a similar, but broader, shared cytokine network encompassing trophoblast and the principal immune regulatory cell, the T lymphocyte.|
|Keywords:||AIDS; cytokine; macrophage; phagocytosis; syncytialization; T lymphocytes; trophoblast|
|Rights:||Copyright status unknown|
|Appears in Collections:||Obstetrics and Gynaecology publications|
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