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Evidence for participation of uterine natural killer cells in the mechanisms responsible for spontaneous preterm labor and delivery
Brown University.
Brown University.
Brown University.
Brown University.
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2009 (English)In: AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY, ISSN 0002-9378, Vol. 200, no 3, 308.e1-308.e9 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: The purpose of this study was to determine in a mouse model whether uterine natural killer (uNK) cell cytotoxic activation induces infection/inflammation-associated preterm labor and delivery.

STUDY DESIGN: Wild type or interleukin (IL)-10(-/-) mice were injected intraperitoneally with lipopolysaccharide on gestational day 14. Mice were either killed for collection of uteroplacental tissue, spleen, and serum or allowed to deliver. Uteroplacental tissue was used for histology and characterization of uNK cells.

RESULTS: Low-dose lipopolysaccharide treatment triggered preterm labor and delivery in IL-10(-/-), but not wild type mice, in a manner independent of progesterone levels. Preterm labor and delivery in IL-10(-/-) mice was associated with an increased number and placental infiltration of cytotoxic uNK cells and placental cell death. Depletion of NK cells or tumor necrosis factor (TNF)-alpha neutralization in these mice restored term delivery. Furthermore, TNF-alpha neutralization prevented uNK cell infiltration and placental cell apoptosis.

CONCLUSION: The uNK cell-TNF-alpha-IL-10 axis plays an important role in the genesis of infection/inflammation-induced pretermlabor/delivery.

Place, publisher, year, edition, pages
2009. Vol. 200, no 3, 308.e1-308.e9 p.
Keyword [en]
cytokines, inflammation, preterm birth, uterine natural killer cells
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-17632DOI: 10.1016/j.ajog.2008.10.043OAI: oai:DiVA.org:liu-17632DiVA: diva2:210928
Available from: 2009-04-07 Created: 2009-04-06 Last updated: 2009-08-19

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Berg, Göran

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Obstetrics and gynecology Faculty of Health SciencesDepartment of Gynecology and Obstetrics in Linköping
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • asciidoc
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