AIM2 inhibits autophagy and IFN-β production during M. bovis infection.

AIM2 inhibits autophagy and IFN-β production during M. bovis infection.
复制标题

DOI:
10.18632/oncotarget.10503
复制
发表时间:
2016-07-26
期刊:
影响因子:
--
通讯作者:
Zhou X
Zhou X
中科院分区:
其他
文献类型:
--
作者:
Liu C;Yue R;Yang Y;Cui Y;Yang L;Zhao D;Zhou X

文献摘要

参考文献

被引文献

相似文献

分枝杆菌可触发AIM2炎性体、自噬激活和i型干扰素释放,均由细胞质DNA激活。我们最近已经证明,在牛分枝杆菌感染期间AIM2炎性体的激活是分枝杆菌易位到细胞质的结果。为了阐明炎性小体激活对自噬的影响,我们研究了感染牛分枝杆菌毒株的巨噬细胞中AIM2炎性小体的作用。结果表明,牛分枝杆菌诱导的AIM2炎性体激活可降低永生化和原代小鼠巨噬细胞的自噬。这依赖于炎症小体传感器AIM2与细胞质DNA结合,抑制分枝杆菌感染巨噬细胞中参与选择性自噬和干扰素β释放的sting依赖途径。这些结果表明AIM2细胞质DNA传感器可能与牛分枝杆菌细胞质DNA竞争性结合,以限制牛分枝杆菌诱导的sting - tbk1依赖性自噬激活和IFN-β分泌。
Mycobacteria can trigger the AIM2 inflammasome, autophagy activation and type-I interferon release, which are both activated by cytosolic DNA. We have recently demonstrated that activation of the AIM2 inflammasome during M. bovis infection is the result of mycobacterial translocation into the cytosol. To elucidate the effects of inflammasome activation on autophagy, we investigated the role of the AIM2 inflammasome from macrophages infected with a virulent strain of M. bovis. The results showed that the M. bovis-induced AIM2 inflammasome activation decreases autophagy in immortalized and primary murine macrophages. This relied on the inflammasome sensor AIM2 which conjugates with cytosolic DNA to inhibit the STING-dependent pathway involved in selective autophagy and interferon-β release in Mycobacterium-infected macrophages. These results suggest that the AIM2 cytosolic DNA sensor may conjugate competitively with cytosolic M. bovis DNA to restrict M. bovis induced STING-TBK1-dependent autophagy activation and IFN-β secretion.
DOI: 10.1016/j.smim.2014.09.002
发表时间: 2014-12
影响因子: 7.8
作者:
Dey B;Bishai WR
通讯作者: Bishai WR
DOI: 10.1155/2011/768542
发表时间: 2011
影响因子: --
作者:
Waters WR;Palmer MV;Thacker TC;Davis WC;Sreevatsan S;Coussens P;Meade KG;Hope JC;Estes DM
通讯作者: Estes DM
DOI: 10.1093/infdis/jiu675
发表时间: 2015-06-01
影响因子: 6.4
作者:
Saiga, Hiroyuki;Nieuwenhuizen, Natalie;Kaufmann, Stefan H. E.
通讯作者: Kaufmann, Stefan H. E.
DOI: 10.1073/pnas.1210500109
发表时间: 2012-11-13
影响因子: 11.1
作者:
Castillo, Eliseo F.;Dekonenko, Alexander;Deretic, Vojo
通讯作者: Deretic, Vojo
DOI: 10.1002/eji.201344219
发表时间: 2014-08-01
影响因子: 5.4
作者:
Dorhoi, Anca;Yeremeev, Vladimir;Kaufmann, Stefan H. E.
通讯作者: Kaufmann, Stefan H. E.