کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3356130 1591582 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Innate immune responses of epididymal epithelial cells to Staphylococcus aureus infection
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
Innate immune responses of epididymal epithelial cells to Staphylococcus aureus infection
چکیده انگلیسی
The epithelium is an active participant in the host response to infection. We hypothesized that epididymal epithelia play a role in the innate immune responses by sensing the presence of pathogens, expressing and secreting inflammatory cytokines that recruit inflammatory cells in response to invading pathogens. Our results indicated that TNF-α and IL-1β could be secreted by the primary cultured rat epididymal cauda epithelia infected with Staphylococcus aureus. Epididymal epithelial-induced nitric oxide synthase (iNOS) expression was up-regulated after S. aureus infection and nitric oxide (NO) was also found to be produced significantly. NF-κB inhibitor BAY11-7082 inhibited TNF-α secretion completely and p38 mitogen-activated protein kinases (MAPKs) inhibitor SB203580 decreased TNF-α secretion partly, indicating that NF-κB and p38 signal pathways were involved in this inflammation response. Toll-like receptor (TLR)-2 and -4 were shown to be expressed in primary cultured rat epididymal epithelia. After infection the level of TLR2 expression was up-regulated rather than TLR4. These results demonstrated that epididymal epithelium have an innate immune response through activation of p38 MAPK and NF-κB after TLR2 activation by S. aureus infection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Immunology Letters - Volume 119, Issues 1–2, 15 August 2008, Pages 84-90
نویسندگان
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