Listeria exploits IFITM3 to suppress antibacterial activity in phagocytes.
Listeria exploits IFITM3 to suppress antibacterial activity in phagocytes.
复制标题
李斯特氏菌利用IFITM3以抑制吞噬细胞中的抗菌活性。
DOI:
10.1038/s41467-021-24982-0
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发表时间:
2021-08-17
影响因子:
16.6
通讯作者:
Brumell JH
中科院分区:
文献类型:
--
作者:
Tan JMJ;Garner ME;Regeimbal JM;Greene CJ;Márquez JDR;Ammendolia DA;McCluggage ARR;Li T;Wu KJ;Cemma M;Ostrowski PP;Raught B;Diamond MS;Grinstein S;Yates RM;Higgins DE;Brumell JH
The type I interferon (IFN) signaling pathway has important functions in resistance to viral infection, with the downstream induction of interferon stimulated genes (ISG) protecting the host from virus entry, replication and spread. Listeria monocytogenes (Lm), a facultative intracellular foodborne pathogen, can exploit the type I IFN response as part of their pathogenic strategy, but the molecular mechanisms involved remain unclear. Here we show that type I IFN suppresses the antibacterial activity of phagocytes to promote systemic Lm infection. Mechanistically, type I IFN suppresses phagosome maturation and proteolysis of Lm virulence factors ActA and LLO, thereby promoting phagosome escape and cell-to-cell spread; the antiviral protein, IFN-induced transmembrane protein 3 (IFITM3), is required for this type I IFN-mediated alteration. Ifitm3−/− mice are resistant to systemic infection by Lm, displaying decreased bacterial spread in tissues, and increased immune cell recruitment and pro-inflammatory cytokine signaling. Together, our findings show how an antiviral mechanism in phagocytes can be exploited by bacterial pathogens, and implicate IFITM3 as a potential antimicrobial therapeutic target. Interferon (IFN) is an important component of antiviral immunity, but can also be exploited by bacteria for immune evasion. Here the authors show that Listeria monocytogenes (Lm) induces type I IFN to suppress the degradation of Lm virulence proteins, ActA and LLO, and promote Lm infection in an IFITM3-dependent manner, thereby hinting at a potential target for antimicrobial therapy.
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DOI:
10.1007/978-1-4939-6581-6_15
发表时间:
2017-01-01
期刊:
PHAGOCYTOSIS AND PHAGOSOMES: METHODS AND PROTOCOLS
影响因子:
--
作者:
Cheung, Samuel;Greene, Catherine;Yates, Robin M.
通讯作者:
Yates, Robin M.
影响因子:
2.9
作者:
Boujemaa-Paterski, R;Gouin, E;Pantaloni, D
通讯作者:
Pantaloni, D
影响因子:
11.4
作者:
Balce, Dale R.;Yates, Robin M.
通讯作者:
Yates, Robin M.
影响因子:
4.4
作者:
Arnett, Eusondia;Vadia, Stephen;Seveau, Stephanie
通讯作者:
Seveau, Stephanie
影响因子:
64.8
作者:
BIELECKI, J;YOUNGMAN, P;PORTNOY, DA
通讯作者:
PORTNOY, DA