Maternal uterine NK cell–activating receptor KIR2DS1 enhances placentation
نویسندگان
چکیده
منابع مشابه
Uterine NK cells: active regulators at the maternal-fetal interface.
Pregnancy presents an immunological conundrum because two genetically different individuals coexist. The maternal lymphocytes at the uterine maternal-fetal interface that can recognize mismatched placental cells are T cells and abundant distinctive uterine NK (uNK) cells. Multiple mechanisms exist that avoid damaging T cell responses to the fetus, whereas activation of uNK cells is probably phy...
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Over one-fifth of North American women of childbearing age are obese, putting these women at risk for a variety of detrimental chronic diseases. In addition, obesity increases the risk for developing major complications during pregnancy. The mechanisms by which obesity contributes to pregnancy complications and loss remain unknown. Increasing evidence indicates that obesity results in major cha...
متن کاملNK cell tolerance of self-specific activating receptor KIR2DS1 in individuals with cognate HLA-C2 ligand.
NK cells are regulated by inhibiting and activating cell surface receptors. Most inhibitory receptors recognize MHC class I Ags and protect healthy cells from NK cell-mediated autoaggression. However, certain activating receptors, including the human activating killer cell Ig-like receptor (KIR) 2DS1, also recognize MHC class I. This fact raises the question of how NK cells expressing such acti...
متن کاملThe influence of the maternal uterine immune response on placentation in human subjects.
The immunological relationship between the mammalian fetus and its mother during pregnancy has been considered similar to that between a transplanted allograft and its recipient ever since Medawar (1953) first proposed the concept of the 'fetus as an allograft' in the early 1950s. Based on this analogy, it has been assumed that implantation of the fetal placenta in the uterus would be controlle...
متن کاملMaternal activating KIRs protect against human reproductive failure mediated by fetal HLA-C2.
Many common disorders of pregnancy are attributed to insufficient invasion of the uterine lining by trophoblast, fetal cells that are the major cell type of the placenta. Interactions between fetal trophoblast and maternal uterine NK (uNK) cells--specifically interactions between HLA-C molecules expressed by the fetal trophoblast cells and killer Ig-like receptors (KIRs) on the maternal uNK cel...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 2013
ISSN: 0021-9738
DOI: 10.1172/jci68991