期刊
AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY
卷 54, 期 4, 页码 193-202出版社
WILEY
DOI: 10.1111/j.1600-0897.2005.00298.x
关键词
epithelial cells; macrophage migration inhibitory factor; toll-like receptor 3; uterus
资金
- NCI NIH HHS [CA 23108] Funding Source: Medline
- NIAID NIH HHS [T32 AI 07363-12, AI 51877] Funding Source: Medline
Problem Uterine epithelial cells produce cytokines that stimulate leukocytes in response to a microbial insult. The goals of this study were to determine if uterine epithelial cells produce the pro-inflammatory cytokine macrophage migration inhibitory factor (MIF), and to see if toll-like receptor (TLR) agonists stimulate MIF secretion. Methods of study Human uterine epithelial cells were isolated and grown in cell culture inserts. Levels of MIF secretion were examined by ELISA and MIF messenger RNA (mRNA) expression was examined using real time RT-PCR. Results Uterine epithelial cells constitutively secrete MIF and exposure to the TLR3 agonist poly (I:C) resulted in enhanced apical secretion of MIF. MIF secretion appeared to be from pre-formed intracellular stores, since exposure of epithelial cells to poly (I:C) had little effect on the expression of MIF-mRNA. Conclusions These results demonstrate that uterine epithelial cells constitutively produce MIF and stimulation with poly (I:C) results in enhanced MIF production. This suggests that MIF secretion by uterine epithelial cells may play a critical role in innate immune responses against viral pathogens mediated through TLR3.
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