Induction of CCL8/MCP-2 by mycobacteria through the activation of TLR2/PI3K/Akt signaling pathway.
Induction of CCL8/MCP-2 by mycobacteria through the activation of TLR2/PI3K/Akt signaling pathway.
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分枝杆菌通过激活 TLR2/PI3K/Akt 信号通路诱导 CCL8/MCP-2
DOI:
10.1371/journal.pone.0056815
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Ge B
中科院分区:
文献类型:
--
作者:
Liu H;Liu Z;Chen J;Chen L;He X;Zheng R;Yang H;Song P;Weng D;Hu H;Fan L;Xiao H;Kaufmann SH;Ernst J;Ge B
Pleural tuberculosis (TB), together with lymphatic TB, constitutes more than half of all extrapulmonary cases. Pleural effusions (PEs) in TB are representative of lymphocytic PEs which are dominated by T cells. However, the mechanism underlying T lymphocytes homing and accumulation in PEs is still incompletely understood. Here we performed a comparative analysis of cytokine abundance in PEs from TB patients and non-TB patients by protein array analysis and observed that MCP-2/CCL8 is highly expressed in the TB-PEs as compared to peripheral blood. Meanwhile, we observed that CCR5, the primary receptor used by MCP-2/CCL8, is mostly expressed on pleural CD4+ T lymphocytes. Furthermore, we found that infection with either Mycobacterium bovis Bacillus Calmette-Guérin (BCG) or Mycobacterium tuberculosis H37Rv induced production of MCP-2/CCL8 at both transcriptional and protein level in Raw264.7 and THP-1 macrophage cells, mouse peritoneal macrophages as well as human PBMC monocyte-derived macrophages (MDMs). The induction of MCP-2/CCL8 by mycobacteria is dependent on the activation of TLR2/PI3K/Akt and p38 signaling pathway. We conclude that accumulation of MCP-2/CCL8 in TB-PEs may function as a biomarker for TB diagnosis.
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DOI:
10.1038/nrmicro2321
发表时间:
2010-04
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
通讯作者:
--
影响因子:
24.3
作者:
Hamm, H;Light, RW
通讯作者:
Light, RW
影响因子:
8
作者:
通讯作者:
--
影响因子:
3.7
作者:
Dheda K;Van-Zyl Smit RN;Sechi LA;Badri M;Meldau R;Symons G;Khalfey H;Carr I;Maredza A;Dawson R;Wainright H;Whitelaw A;Bateman ED;Zumla A
通讯作者:
Zumla A
影响因子:
158.5
作者:
Light, RW
通讯作者:
Light, RW