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Human uterine natural killer cells: a reappraisal

Lookup NU author(s): Dr Judith Bulmer, Dr Gendie Lash


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The presence of granulated cells within the uterus of many species has been recognised for many years but only recently have these been recognised to be a type of NK cell. Various terms have been applied to the cells, including endometrial granulocyte, K cell and, in mouse and rat, granulated metrial gland cell. Although early studies are often based on histology and electron microscopy, these often include important information for current studies. In vitro studies of purified cells have focused particularly on cytotoxicity and cytokine production and roles in the control of trophoblast invasion and spiral artery remodelling in human pregnancy have been proposed. Evidence in mouse has implicated uNK cell production of IFN-gamma in vascular remodelling but evidence for such a role for human uNK cells remains to be established. Investigation of uNK cells in human pregnancy is hampered by the lack of availability of tissues from the first half of the second trimester of pregnancy when vascular remodelling occurs and also by possible differences between cells from different regions of decidua. The presence of similar cells in species with no trophoblast invasion into the uterus and epitheliochorial placentation raises the question of whether control of trophoblast invasion by human uNK cells is important in vivo and raises the possibility of another function which is conserved between species. (C) 2004 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Bulmer JN, Lash GE

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Molecular Immunology: 20th International Natural Killer Cell Workshop

Year of Conference: 2005

Pages: 511-521

ISSN: 0161-5890

Publisher: Pergamon


DOI: 10.1016/j.molimm.2004.07.035

Library holdings: Search Newcastle University Library for this item

ISBN: 18729142