Gasdermin D restricts Burkholderia cenocepacia infection in vitro and in vivo.
Gasdermin D restricts Burkholderia cenocepacia infection in vitro and in vivo.
复制标题
Gasdermin D在体外和体内限制新洋葱伯克霍尔德菌感染。
DOI:
10.1038/s41598-020-79201-5
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发表时间:
2021-01-13
影响因子:
4.6
通讯作者:
Amer AO
中科院分区:
文献类型:
--
作者:
Estfanous S;Krause K;Anne MNK;Eltobgy M;Caution K;Abu Khweek A;Hamilton K;Badr A;Daily K;Carafice C;Baetzhold D;Zhang X;Li T;Wen H;Gavrilin MA;Haffez H;Soror S;Amer AO
Burkholderia cenocepacia (B. cenocepacia) is an opportunistic bacterium; causing severe life threatening systemic infections in immunocompromised individuals including cystic fibrosis patients. The lack of gasdermin D (GSDMD) protects mice against endotoxin lipopolysaccharide (LPS) shock. On the other hand, GSDMD promotes mice survival in response to certain bacterial infections. However, the role of GSDMD during B. cenocepacia infection is not yet determined. Our in vitro study shows that GSDMD restricts B. cenocepacia replication within macrophages independent of its role in cell death through promoting mitochondrial reactive oxygen species (mROS) production. mROS is known to stimulate autophagy, hence, the inhibition of mROS or the absence of GSDMD during B. cenocepacia infections reduces autophagy which plays a critical role in the restriction of the pathogen. GSDMD promotes inflammation in response to B. cenocepacia through mediating the release of inflammasome dependent cytokine (IL-1β) and an independent one (CXCL1) (KC). Additionally, different B. cenocepacia secretory systems (T3SS, T4SS, and T6SS) contribute to inflammasome activation together with bacterial survival within macrophages. In vivo study confirmed the in vitro findings and showed that GSDMD restricts B. cenocepacia infection and dissemination and stimulates autophagy in response to B. cenocepacia. Nevertheless, GSDMD promotes lung inflammation and necrosis in response to B. cenocepacia without altering mice survival. This study describes the double-edged functions of GSDMD in response to B. cenocepacia infection and shows the importance of GSDMD-mediated mROS in restriction of B. cenocepacia.
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影响因子:
32.4
作者:
Evavold CL;Ruan J;Tan Y;Xia S;Wu H;Kagan JC
通讯作者:
Kagan JC
影响因子:
3.4
作者:
Amer, AO;Swanson, MS
通讯作者:
Swanson, MS
DOI:
10.1084/jem.20102049
发表时间:
2011-03-14
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Bulua AC;Simon A;Maddipati R;Pelletier M;Park H;Kim KY;Sack MN;Kastner DL;Siegel RM
通讯作者:
Siegel RM
影响因子:
3.1
作者:
Allen, Robert C.;Stephens, Jackson T., Jr.
通讯作者:
Stephens, Jackson T., Jr.
影响因子:
13.3
作者:
Abdulrahman, Basant A.;Abu Khweek, Arwa;Amer, Amal O.
通讯作者:
Amer, Amal O.