Control of adaptive immune responses by Staphylococcus aureus through IL-10, PD-L1, and TLR2.
Control of adaptive immune responses by Staphylococcus aureus through IL-10, PD-L1, and TLR2.
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DOI:
10.1038/srep00606
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发表时间:
2012
影响因子:
4.6
通讯作者:
Norcross, Michael A.
中科院分区:
文献类型:
--
作者:
Wang, Jinhai;Roderiquez, Gregory;Norcross, Michael A.
Microbes induce innate immune responses in hosts. It is critical to know how different microbes control adaptive responses through innate pathways. The impact of gram-positive bacteria on the innate and adaptive responses is unclear. Herein we report that Staphylococcus aureus induces IL-10, Th17-inducing cytokines IL-6 and IL-23, chemokines, and regulates dendritic cell markers. S. aureus inhibits T-cell IL-2 responses through modulation of HLA-DR, CD86 and PD-L1. IFN-gamma, Src kinase inhibitors, or TLR2 antibodies prevented the down-modulation of HLA-DR by S. aureus. Our data demonstrate that innate TLR signaling induces multi-dimensional inhibition of adaptive immune responses, which may contribute to the lack of protective immunity to bacteria or microbe tolerance. IL-10 and PD-L1 antagonists may boost immunity to vaccines for S. aureus and other microbes.
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发表时间:
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期刊:
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发表时间:
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影响因子:
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通讯作者:
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