PMID: 11912282Mar 26, 2002Paper

Regulation of natural antibiotic expression by inflammatory mediators and mimics of infection in human endometrial epithelial cells

Molecular Human Reproduction
A E KingRodney W Kelly

Abstract

The natural antibiotic molecules, beta-defensins 1 and 2 (HBD1/2) and secretory leukocyte protease inhibitor (SLPI), have an important role in mucosal defence and are present in the uterus. This study details their regulation in primary endometrial epithelial cells and in two endometrial cell lines (MFE/HES). Cells were treated with proinflammatory molecules and mimics of infection [lipopolysaccharide (LPS) and lipoteichoic acid (LTA)]. mRNA for HBD1, HBD2 and SLPI was detected in primary endometrial epithelial cells using real-time quantitative PCR. HBD1 mRNA was present at very low levels preventing conclusive study of its regulation. However, HBD2 mRNA expression was increased by interferon-gamma, interleukin (IL)-1beta alone and IL-1beta+tumour necrosis factor (TNF)-alpha. SLPI mRNA was not affected by proinflammatory mediators, although protein levels fell in the presence of IL-1beta+TNFalpha. LPS had little effect on antimicrobial expression. However, there was a trend towards increased expression with LTA treatment for 4-8 h. Antimicrobial expression in endometrial cell lines was similar to that in primary cells, although SLPI was increased by IL-1beta+TNFalpha treatment. These results suggest that in endometrium some na...Continue Reading

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