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- W3126586327 abstract "Recurrent miscarriage and pre-eclampsia are common reproductive disorders, but their causes are often unknown. Recent evidence has provided new insight into immune system influences in reproductive disorders. A subset of lymphocytes of the innate immune system known as uterine natural killer (uNK) cells are now recognized as fundamental to achieving embryo implantation and successful pregnancy, but were initially attributed a bad reputation. Indeed, immune therapies have been developed to treat the 'exaggerated' immune response from uNK cells. These treatments have been based on studies of peripheral blood natural killer (pbNK) cells. However, uNK cells and pbNK cells have different phenotypic and functional characteristics. The functions of uNK cells are closely related to their interactions with the extravillous trophoblast cells (EVTs) and spiral arteries, which underlie an essential role in regulating vascular function, controlling trophoblast invasion and promoting placental development. EVTs express MHC molecules of class I HLA-C/E/G/F, while uNK cells express, among other receptors, killer cell immunoglobulin-like receptors (KIRs) that bind to HLA-C or CD94/NKG2A inhibitory receptors, and then bind HLA-E. Associations of certain KIR/HLA-C combinations with recurrent miscarriage, pre-eclampsia, and foetal growth restriction and the interactions between uNK cells, trophoblasts and vascular cells have led to the hypothesis that uNK cells may play a role in embryo implantation.Our objective was to review the evolution of our understanding of uNK cells, their functions, and their increasingly relevant role in reproduction.Relevant literature through June 2020 was retrieved using Google Scholar and PubMed. Search terms comprised uNK cells, human pregnancy, reproductive failure, maternal KIR and HLA-C, HLA-E/G/F in EVT cells, angiogenic cytokines, CD56+ NK cells, spiral artery, oestrogen and progesterone receptors, KIR haplotype and paternal HLA-C2.This review provides key insights into the evolving conceptualization of uNK cells, from their not-so-promising beginnings to now, when they are considered allies in reproduction. We synthesized current knowledge about uNK cells, their involvement in reproduction and their main functions in placental vascular remodeling and trophoblast invasion. One of the issues that this review presents is the enormous complexity involved in studying the immune system in reproduction. The complexity in the immunology of the maternal-foetal interface lies in the great variety of participating molecules, the processes and interactions that occur at different levels (molecular, cellular, tissue, etc.) and the great diversity of genetic combinations that are translated into different types of responses.Insights into uNK cells could offer an important breakthrough for ART outcomes, since each patient could be assessed based on the combination of HLA and its receptors in their uNK cells, evaluating the critical interactions at the materno-foetal interface. However, owing to the technical challenges in studying uNK cells in vivo, there is still much knowledge to gain, particularly regarding their exact origin and functions. New studies using novel molecular and genetic approaches can facilitate the identification of mechanisms by which uNK cells interact with other cells at the materno-foetal interface, perhaps translating this knowledge into clinical applicability." @default.
- W3126586327 created "2021-02-15" @default.
- W3126586327 creator A5001422277 @default.
- W3126586327 creator A5020354928 @default.
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- W3126586327 creator A5068027672 @default.
- W3126586327 date "2021-02-02" @default.
- W3126586327 modified "2023-10-12" @default.
- W3126586327 title "Uterine natural killer cells: from foe to friend in reproduction" @default.
- W3126586327 cites W1485908840 @default.
- W3126586327 cites W1496091321 @default.
- W3126586327 cites W1519245034 @default.
- W3126586327 cites W1535865314 @default.
- W3126586327 cites W154927946 @default.
- W3126586327 cites W1572727383 @default.
- W3126586327 cites W1575333294 @default.
- W3126586327 cites W1619770660 @default.
- W3126586327 cites W1772147602 @default.
- W3126586327 cites W1884787470 @default.
- W3126586327 cites W1964462618 @default.
- W3126586327 cites W1964653209 @default.
- W3126586327 cites W1965034704 @default.
- W3126586327 cites W1967449098 @default.
- W3126586327 cites W1969814796 @default.
- W3126586327 cites W1969998172 @default.
- W3126586327 cites W1970508192 @default.
- W3126586327 cites W1970642967 @default.
- W3126586327 cites W1974753304 @default.
- W3126586327 cites W1975833165 @default.
- W3126586327 cites W1977320008 @default.
- W3126586327 cites W1979173807 @default.
- W3126586327 cites W1980369754 @default.
- W3126586327 cites W1984745726 @default.
- W3126586327 cites W1986672594 @default.
- W3126586327 cites W1988142062 @default.
- W3126586327 cites W1989175370 @default.
- W3126586327 cites W1989564158 @default.
- W3126586327 cites W1990284406 @default.
- W3126586327 cites W1991462195 @default.
- W3126586327 cites W1993188608 @default.
- W3126586327 cites W1994255893 @default.
- W3126586327 cites W1995418721 @default.
- W3126586327 cites W1997430840 @default.
- W3126586327 cites W1997849135 @default.
- W3126586327 cites W1998853454 @default.
- W3126586327 cites W2002316686 @default.
- W3126586327 cites W2003502536 @default.
- W3126586327 cites W2003676228 @default.
- W3126586327 cites W2003859187 @default.
- W3126586327 cites W2004101061 @default.
- W3126586327 cites W2005561356 @default.
- W3126586327 cites W2005765588 @default.
- W3126586327 cites W2008504976 @default.
- W3126586327 cites W2010155467 @default.
- W3126586327 cites W2010920010 @default.
- W3126586327 cites W2014270110 @default.
- W3126586327 cites W2015499914 @default.
- W3126586327 cites W2017057381 @default.
- W3126586327 cites W2019997266 @default.
- W3126586327 cites W2020512673 @default.
- W3126586327 cites W2021552768 @default.
- W3126586327 cites W2021998052 @default.
- W3126586327 cites W2025313810 @default.
- W3126586327 cites W2026646643 @default.
- W3126586327 cites W2027412382 @default.
- W3126586327 cites W2028369131 @default.
- W3126586327 cites W2030573550 @default.
- W3126586327 cites W2032787666 @default.
- W3126586327 cites W2034345040 @default.
- W3126586327 cites W2034492080 @default.
- W3126586327 cites W2034781980 @default.
- W3126586327 cites W2036136782 @default.
- W3126586327 cites W2036217975 @default.
- W3126586327 cites W2037873390 @default.
- W3126586327 cites W2039266996 @default.
- W3126586327 cites W2040613067 @default.
- W3126586327 cites W2041044779 @default.
- W3126586327 cites W2041870398 @default.
- W3126586327 cites W2043309496 @default.
- W3126586327 cites W2043421204 @default.
- W3126586327 cites W2046788012 @default.
- W3126586327 cites W2048412962 @default.
- W3126586327 cites W2049733552 @default.
- W3126586327 cites W2052316519 @default.
- W3126586327 cites W2053448057 @default.
- W3126586327 cites W2054617554 @default.
- W3126586327 cites W2055185743 @default.
- W3126586327 cites W2056294229 @default.
- W3126586327 cites W2056992738 @default.
- W3126586327 cites W2058169110 @default.
- W3126586327 cites W2058227592 @default.
- W3126586327 cites W2059681836 @default.
- W3126586327 cites W2062581776 @default.
- W3126586327 cites W2062687768 @default.
- W3126586327 cites W2063733534 @default.
- W3126586327 cites W2064241319 @default.
- W3126586327 cites W2065316411 @default.
- W3126586327 cites W2067885045 @default.