Journal
JOURNAL OF REPRODUCTIVE IMMUNOLOGY
Volume 106, Issue -, Pages 76-88Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.jri.2014.07.001
Keywords
Slit2; Myometrium; Foetal membranes; Human labour; Inflammation
Categories
Funding
- National Health and Medical Research Council (NHMRC) [1047025]
- University of Melbourne
- Mercy Research Foundation
- Medical Research Foundation for Women and Babies
Ask authors/readers for more resources
Preterm birth, a global healthcare problem, is commonly associated with inflammation. As Slit2 plays an emerging role in inflammation, the purpose of this study was to determine the effect of Slit2 on labour mediators in human gestational tissues. Slit2 mRNA and protein expression were assessed using gRT-PCR and immunohistochemistry in foetal membranes and myometrium obtained before and after labour. Slit2 silencing was achieved using siRNA in primary myometrial cells. Pro-inflammatory and pro-labour mediators were evaluated by gRT-PCR, ELISA and gelatin zymography. Slit2 mRNA and protein expression were found to be significantly lower in myometrium after labour onset. There was no effect of term or preterm labour on Slit2 expression in foetal membranes. Slit2 mRNA expression was decreased in myometrium treated with LPS and IL-1 beta. Slit2 siRNA in myometrial cells increased IL-1 beta-induced pro-inflammatory cytokine gene expression and release (IL-6 and IL-8), COX-2 expression and prostaglandin PGE(2) and PGF(2 alpha), release, and MMP-9 gene expression and pro MMP-9 release. There was no effect of Slit2 siRNA on IL-1 beta-induced NF-kappa B transcriptional activity. Our results demonstrate that Slit2 is decreased in human myometrium after labour and our knock-down studies describe an anti-inflammatory effect of Slit2 in myometrial cells. (C) 2014 Elsevier Ireland Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available