SHIP1 modulates antimalarial immunity by bridging the crosstalk between type I IFN signaling and autophagy.
SHIP1 modulates antimalarial immunity by bridging the crosstalk between type I IFN signaling and autophagy.
复制标题
作者：
Stringent control of the type I interferon (IFN-I) signaling is critical for host immune defense against infectious diseases, yet the molecular mechanisms that regulate this pathway remain elusive. Here, we show that Src homology 2 containing inositol phosphatase 1 (SHIP1) suppresses IFN-I signaling by promoting IRF3 degradation during malaria infection. Genetic ablation of Ship1 in mice leads to high levels of IFN-I and confers resistance to Plasmodium yoelii nigeriensis (P.y.) N67 infection. Mechanistically, SHIP1 promotes the selective autophagic degradation of IRF3 by enhancing K63-linked ubiquitination of IRF3 at lysine 313, which serves as a recognition signal for NDP52-mediated selective autophagic degradation. In addition, SHIP1 is downregulated by IFN-I-induced miR-155-5p upon P.y. N67 infection and severs as a feedback loop of the signaling crosstalk. This study reveals a regulatory mechanism between IFN-I signaling and autophagy, and verifies SHIP1 can be a potential target for therapeutic intervention against malaria and other infectious diseases. Malaria remains a serious disease affecting millions of people worldwide. Malaria parasite infection triggers tightly controlled type I interferon (IFN-I) signaling that plays a critical role in host innate immunity; however, the molecular mechanisms underlying the immune responses are still elusive. Here, we discover a host gene [Src homology 2-containing inositol phosphatase 1 (SHIP1)] that can regulate IFN-I signaling by modulating NDP52-mediated selective autophagic degradation of IRF3 and significantly affect parasitemia and resistance of Plasmodium-infected mice. This study identifies SHIP1 as a potential target for immunotherapies in malaria and highlights the crosstalk between IFN-I signaling and autophagy in preventing related infectious diseases. SHIP1 functions as a negative regulator during malaria infection by targeting IRF3 for autophagic degradation.
登录
查看更多内容
影响因子：
64.8
作者：
Domizio JD;Gulen MF;Saidoune F;Thacker VV;Yatim A;Sharma K;Nass T;Guenova E;Schaller M;Conrad C;Goepfert C;de Leval L;Garnier CV;Berezowska S;Dubois A;Gilliet M;Ablasser A
通讯作者：
Ablasser A
影响因子：
11.5
作者：
Lemm, Elizabeth A.;Valle-Argos, Beatriz;Packham, Graham
通讯作者：
Packham, Graham
影响因子：
21.3
作者：
Gatica D;Lahiri V;Klionsky DJ
通讯作者：
Klionsky DJ
影响因子：
6.4
作者：
Cai B;Wu J;Yu X;Su XZ;Wang RF
通讯作者：
Wang RF
DOI：
10.3390/ijerph19042395
发表时间：
2022-02-19
影响因子：
--
作者：
Kataria P;Surela N;Chaudhary A;Das J
通讯作者：
Das J