Abstract：
:Typhoidal and non-typhoidal Salmonelleae (NTS) cause typhoid fever and gastroenteritis, respectively, in humans. Salmonella typhoid toxin contributes to typhoid disease progression and chronic infection, but little is known about the role of its NTS ortholog. We found that typhoid toxin and its NTS ortholog induce different clinical presentations. The PltB subunit of each toxin exhibits different glycan-binding preferences that correlate with glycan expression profiles of host cells targeted by each bacterium at the primary infection or intoxication sites. Through co-crystal structures of PltB subunits bound to specific glycan receptor moieties, we show that they induce markedly different glycan-binding preferences and virulence outcomes. Furthermore, immunization with the NTS S. Javiana or its toxin offers cross-reactive protection against lethal-dose typhoid toxin challenge. Cumulatively, these results offer insights into the evolution of host adaptations in Salmonella AB toxins, their cell and tissue tropisms, and the design for improved typhoid vaccines and therapeutics.
journal_name
Cell Host Microbejournal_title
Cell host & microbeauthors
Lee S,Yang YA,Milano SK,Nguyen T,Ahn C,Sim JH,Thompson AJ,Hillpot EC,Yoo G,Paulson JC,Song Jdoi
10.1016/j.chom.2020.04.005subject
Has Abstractpub_date
2020-06-10 00:00:00pages
937-949.e6issue
6eissn
1931-3128issn
1934-6069pii
S1931-3128(20)30232-8journal_volume
27pub_type
杂志文章abstract：:Alphaviruses infect cells via a low-pH-triggered membrane fusion reaction mediated by the class II virus fusion protein E1, an elongated molecule with three extramembrane domains (DI-III). E1 drives fusion by inserting its fusion peptide loop into the target membrane and refolding to a hairpin-like trimer in which DII...
journal_title：Cell host & microbe
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journal_title：Cell host & microbe
pub_type： 杂志文章,评审
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abstract：:Variant surface antigens play an important role in Plasmodium falciparum malaria pathogenesis and in immune evasion by the parasite. Although most work to date has focused on P. falciparum Erythrocyte Membrane Protein 1 (PfEMP1), two other multigene families encoding STEVOR and RIFIN are expressed in invasive merozoit...
journal_title：Cell host & microbe
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journal_title：Cell host & microbe
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abstract：:Trypanosomiasis is a devastating neglected tropical disease affecting livestock and humans. Humans are susceptible to two Trypanosoma brucei subspecies but protected from other trypanosomes by circulating high-density lipoprotein (HDL) complexes called trypanosome lytic factors (TLFs) 1 and 2. TLFs contain apolipoprot...
journal_title：Cell host & microbe
pub_type： 杂志文章
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abstract：:Interactions between the host and its microbiota are of mutual benefit and promote health. Complex molecular pathways underlie this dialog, but the identity of microbe-derived molecules that mediate the mutualistic state remains elusive. Helicobacter hepaticus is a member of the mouse intestinal microbiota that is tol...
journal_title：Cell host & microbe
pub_type： 杂志文章
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abstract：:Rabies virus (RABV), the etiological agent for the lethal disease of rabies, is a deadly zoonotic pathogen. The RABV glycoprotein (RABV-G) is a key factor mediating virus entry and the major target of neutralizing antibodies. Here, we report the crystal structures of RABV-G solved in the free form at ∼pH-8.0 and in th...
journal_title：Cell host & microbe
pub_type： 杂志文章
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journal_title：Cell host & microbe
pub_type： 评论,杂志文章
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abstract：:Intracellular nucleotide-binding leucine-rich repeat (NLR) receptors play central roles in human and plant innate immunity. In this issue of Cell Host & Microbe, Wang et al. (2015) show that a single plant NLR can detect diverse pathogen effectors by partnering with different scaffolding proteins, which can each recog...
journal_title：Cell host & microbe
pub_type： 评论,杂志文章
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journal_title：Cell host & microbe
pub_type： 评论,杂志文章
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abstract：:Hepatitis C virus (HCV) is a major global health burden accounting for around 170 million chronic infections worldwide. Although highly potent direct-acting antiviral drugs to treat chronic hepatitis C have been approved recently, owing to their high costs and limited availability and a large number of undiagnosed inf...
journal_title：Cell host & microbe
pub_type： 杂志文章,评审
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journal_title：Cell host & microbe
pub_type： 杂志文章,评审
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更新日期：2018-06-13 00:00:00
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journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2011.09.011
更新日期：2011-11-17 00:00:00
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journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2011.05.007
更新日期：2011-06-16 00:00:00
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journal_title：Cell host & microbe
pub_type： 评论,杂志文章
doi：10.1016/j.chom.2018.04.010
更新日期：2018-05-09 00:00:00
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journal_title：Cell host & microbe
pub_type： 杂志文章,评审
doi：10.1016/j.chom.2009.05.010
更新日期：2009-06-18 00:00:00
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journal_title：Cell host & microbe
pub_type： 杂志文章,评审
doi：10.1016/j.chom.2008.07.009
更新日期：2008-08-14 00:00:00
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journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2014.03.006
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journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2017.04.002
更新日期：2017-05-10 00:00:00
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journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2016.05.009
更新日期：2016-06-08 00:00:00
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journal_title：Cell host & microbe
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更新日期：2020-03-11 00:00:00
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journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2019.10.013
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abstract：:The intestinal microbiota, which is composed of bacteria, viruses, and micro-eukaryotes, acts as an accessory organ system with distinct functions along the intestinal tract that are critical for health. This review focuses on how the microbiota drives intestinal disease through alterations in microbial community arch...
journal_title：Cell host & microbe
pub_type： 杂志文章,评审
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journal_title：Cell host & microbe
pub_type： 评论,杂志文章
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journal_title：Cell host & microbe
pub_type： 评论,杂志文章
doi：10.1016/j.chom.2008.11.006
更新日期：2008-12-11 00:00:00
abstract：:Horizontal gene transfer (HGT) facilitates spead of antibiotic resistance elements. In this issue of Cell Host & Microbe, Domenech et al. discover that compounds disrupting proton motive force block natural competence (COM) and interrupt intraspecies HGT and exchange of antibiotic resistance. Such strategies might min...
journal_title：Cell host & microbe
pub_type： 评论,杂志文章
doi：10.1016/j.chom.2020.03.013
更新日期：2020-04-08 00:00:00
abstract：:Although Drosophila systemic immunity is extensively studied, little is known about the fly's intestine-specific responses to bacterial infection. Global gene expression analysis of Drosophila intestinal tissue to oral infection with the Gram-negative bacterium Erwinia carotovora revealed that immune responses in the ...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2009.01.003
更新日期：2009-02-19 00:00:00
abstract：:Here I revisit our early experiments published in Cell Host & Microbe (Turnbaugh et al., 2008) showing that a diet rich in fat and simple sugars alters the gut microbiome in a manner that contributes to host adiposity, and reflect upon the remarkable advances and remaining challenges in this field. ...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2017.02.021
更新日期：2017-03-08 00:00:00
abstract：:Although anthrax toxin was identified as a major Bacillus anthracis virulence factor over 50 years ago, defining the physiologically relevant targets has been challenging. Liu et al. demonstrate that intoxication of myeloid-derived cells contributes to establishing infection but is not required for mortality resulting...
journal_title：Cell host & microbe
pub_type： 评论,杂志文章
doi：10.1016/j.chom.2010.10.011
更新日期：2010-11-18 00:00:00
abstract：:The prototypic arenavirus lymphocytic choriomeningitis virus (LCMV), which naturally persists in rodents, represents a model for HIV, HBV, and HCV. Cleavage of the viral glycoprotein precursor by membrane-bound transcription factor peptidase, site 1 (Mbtps1 or site-1 protease), is crucial for the life cycle of arenavi...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2011.02.006
更新日期：2011-03-17 00:00:00
