Abstract：
:Innate immune responses are characterized by precise gene expression whereby gene subsets are temporally induced to limit infection, although the mechanisms involved are incompletely understood. We show that antiviral immunity in Drosophila requires the transcriptional pausing pathway, including negative elongation factor (NELF) that pauses RNA polymerase II (Pol II) and positive elongation factor b (P-TEFb), which releases paused Pol II to produce full-length transcripts. We identify a set of genes that is rapidly transcribed upon arbovirus infection, including components of antiviral pathways (RNA silencing, autophagy, JAK/STAT, Toll, and Imd) and various Toll receptors. Many of these genes require P-TEFb for expression and exhibit pausing-associated chromatin features. Furthermore, transcriptional pausing is critical for antiviral immunity in insects because NELF and P-TEFb are required to restrict viral replication in adult flies and vector mosquito cells. Thus, transcriptional pausing primes virally induced genes to facilitate rapid gene induction and robust antiviral responses.
journal_name
Cell Host Microbejournal_title
Cell host & microbeauthors
Xu J,Grant G,Sabin LR,Gordesky-Gold B,Yasunaga A,Tudor M,Cherry Sdoi
10.1016/j.chom.2012.08.011subject
Has Abstractpub_date
2012-10-18 00:00:00pages
531-43issue
4eissn
1931-3128issn
1934-6069pii
S1931-3128(12)00306-Xjournal_volume
12pub_type
杂志文章abstract：:Vibrio parahaemolyticus, a Gram-negative halophilic bacterium that causes acute gastroenteritis in humans, is characterized by two type III secretion systems (T3SS), namely T3SS1 and T3SS2. T3SS2 is indispensable for enterotoxicity but the effector(s) involved are unknown. Here, we identify VopV as a critical effector...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2011.08.014
更新日期：2011-10-20 00:00:00
abstract：:Commensal bacteria are known to provide colonization resistance in the gut. But exactly which ones provide this function? In a recent paper in Science, Kim et al. (2017) revealed that Clostridia added to mouse infant gut microbiota are sufficient to limit colonization of pathogenic Enterobacteriaceae. ...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2017.06.002
更新日期：2017-06-14 00:00:00
abstract：:Type III secretion systems (T3SS) are used by bacteria to deliver proteins into the cytoplasm of eukaryotic cells. Most studies of T3SS have focused on the role of these secretion systems in specific host interactions. However, there is increasing evidence to suggest that T3SS are also used in interactions with multip...
journal_title：Cell host & microbe
pub_type： 杂志文章,评审
doi：10.1016/j.chom.2007.10.004
更新日期：2007-11-15 00:00:00
abstract：:In this issue of Cell Host & Microbe, two articles (Lee et al., 2019; Henry et al., 2019) find the influenza-specific antibody repertoire in humans becomes static over time and with age, despite repeated exposures. Identified persistent dominant clones target conserved viral epitopes, supporting the feasibility of a u...
journal_title：Cell host & microbe
pub_type： 评论,杂志文章
doi：10.1016/j.chom.2019.02.009
更新日期：2019-03-13 00:00:00
abstract：:Our intestinal microbiota harbors a diverse microbial community, often containing opportunistic bacteria with virulence potential. However, mutualistic host-microbial interactions prevent disease by opportunistic pathogens through poorly understood mechanisms. We show that the epithelial interleukin-22 receptor IL-22R...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2014.08.017
更新日期：2014-10-08 00:00:00
abstract：:Eradication of pathogens from the bloodstream is critical to prevent disseminated infections and sepsis. Kupffer cells in the liver form an intravascular firewall that captures and clears pathogens from the blood. Here, we show that the catching and killing of circulating pathogens by Kupffer cells in vivo are promote...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2020.07.014
更新日期：2020-11-11 00:00:00
abstract：:Evolution of antibody repertoire against the Ebola virus (EBOV) proteome was characterized in an acutely infected patient receiving supportive care alone to elucidate virus-host interactions over time. Differential kinetics are observed for IgM-IgG-IgA epitope diversity, antibody binding, and affinity maturation to EB...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2020.01.001
更新日期：2020-02-12 00:00:00
abstract：:Peptidoglycan recognition proteins (PGRPs or Pglyrps) regulate antibacterial responses in Drosophila, yet their functions in humans remain unclear. In this issue of Cell Host & Microbe, Saha and colleagues report that mammalian PGRPs can prevent aberrant interferon-gamma--induced inflammatory damage in vivo by modulat...
journal_title：Cell host & microbe
pub_type： 评论,杂志文章
doi：10.1016/j.chom.2010.07.010
更新日期：2010-08-19 00:00:00
abstract：:The Cullin-RING E3 ligase (CRL) family is commonly hijacked by pathogens to redirect the host ubiquitin proteasome machinery to specific targets. During HIV infection, CRL5 is hijacked by HIV Vif to target viral restriction factors of the APOBEC3 family for ubiquitination and degradation. Here, using a quantitative pr...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2019.05.008
更新日期：2019-07-10 00:00:00
abstract：:Microbial CRISPR-Cas acts as a defense, but also as a gatekeeper controlling the flow of new genes into microbial genomes. In a recent Cell paper, Jiang et al. (2016) uncover the functional importance of transcription-dependent RNA targeting in type III-A CRISPR-Cas antiviral defense and provide insight into the co-ev...
journal_title：Cell host & microbe
pub_type： 评论,杂志文章
doi：10.1016/j.chom.2016.01.015
更新日期：2016-02-10 00:00:00
abstract：:Productive transcription of the HIV-1 genome involves RNA polymerase II working in concert with the viral protein Tat and its team of cofactors in a highly orchestrated process. Now, Pagans and colleagues report that the lysine methyltransferase Set7/9-KMT7 associates with Tat to stimulate RNA polymerase II elongation...
journal_title：Cell host & microbe
pub_type： 评论,杂志文章
doi：10.1016/j.chom.2010.03.001
更新日期：2010-03-18 00:00:00
abstract：:Complement, a complex system of serum proteins, contributes to host defense through multiple mechanisms. In this issue of Cell Host & Microbe, Sorbara et al. (2018) discovered that cytosolic pathogens opsonized by complement are restricted by autophagy. This unexpected role for complement is important for cell-autonom...
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
abstract：:RIG-I detects double-stranded RNA (dsRNA) to trigger antiviral cytokine production. Protein deamidation is emerging as a post-translational modification that chiefly regulates protein function. We report here that UL37 of herpes simplex virus 1 (HSV-1) is a protein deamidase that targets RIG-I to block RNA-induced act...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2016.10.011
更新日期：2016-12-14 00:00:00
abstract：:Recent epidemics of Zika virus (ZIKV) have brought increasing concerns of heightened disease severity and neurotropism. In this issue of Cell Host & Microbe, Lazear et al. (2016) and Bayer et al. (2016) show that innate immunity can restrict ZIKV infection and disease development. ...
journal_title：Cell host & microbe
pub_type： 评论,杂志文章
doi：10.1016/j.chom.2016.04.019
更新日期：2016-05-11 00:00:00
abstract：:Viruses are involved in various interactions both within and between infected cells. Social evolution theory offers a conceptual framework for how virus-virus interactions, ranging from conflict to cooperation, have evolved. A critical examination of these interactions could expand our understanding of viruses and be ...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2017.09.012
更新日期：2017-10-11 00:00:00
abstract：:Malaria starts with the infection of the liver by Plasmodium parasites. Although extensive analysis of Plasmodium has revealed the expression patterns of this parasite in every stage of its life cycle, the liver stage remained unexplored. Recently, Tarun et al. have published the first complete transcriptome and prote...
journal_title：Cell host & microbe
pub_type： 杂志文章,评审
doi：10.1016/j.chom.2008.01.004
更新日期：2008-02-14 00:00:00
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 dif...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2020.04.005
更新日期：2020-06-10 00:00:00
abstract：:In an era of increasing antibiotic resistance, growing clinical need for new drugs, and few lead molecules, new research is helping to identify new targets and the mechanism of action of lead molecules. ...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2009.08.009
更新日期：2009-09-17 00:00:00
abstract：:Intracellular pathogens manipulate host organelles to support replication within cells. For Legionella pneumophila, the bacterium translocates proteins that establish an endoplasmic reticulum (ER)-associated replication compartment. We show here that the bacterial Sde proteins target host reticulon 4 (Rtn4) to control...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2016.12.007
更新日期：2017-02-08 00:00:00
abstract：:Efficient nutrient acquisition in the human gut is essential for microbial persistence. Although polysaccharides have been well-studied nutrients for the gut microbiome, other resources such as nucleic acids and nucleosides are less studied. We describe several ribose-utilization systems (RUSs) that are broadly repres...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2019.11.009
更新日期：2020-01-08 00:00:00
abstract：:Influenza A virus hemagglutinin (HA) initiates viral entry by engaging host receptor sialylated glycans via its receptor-binding site (RBS). The amino acid sequence of the RBS naturally varies across avian and human influenza virus subtypes and is also evolvable. However, functional sequence diversity in the RBS has n...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2017.05.011
更新日期：2017-06-14 00:00:00
abstract：:Poxviruses are large DNA viruses that include the causal agent of human smallpox and vaccinia virus. Poxviruses replicate in cytoplasmic foci known as DNA factories. Here we show that a virus-encoded transcription factor, viral mRNA, cellular RNA-binding protein heterodimer G3BP/Caprin-1 (p137), translation initiation...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2007.08.005
更新日期：2007-10-11 00:00:00
abstract：:Newborns are colonized with an intestinal microbiota shortly after birth, but the factors governing the retention and abundance of specific microbial lineages are unknown. Nursing infants consume human milk oligosaccharides (HMOs) that pass undigested to the distal gut, where they may be digested by microbes. We deter...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2011.10.007
更新日期：2011-11-17 00:00:00
abstract：:Blockade of immune checkpoint molecules, a group of molecules normally involved in maintaining self-tolerance and limiting T cell responses, has emerged as a breakthrough in cancer therapy. Two recent studies published in Science show that, in mice, gut commensal microbes promote antitumor immunity and may determine t...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2015.11.014
更新日期：2015-12-09 00:00:00
abstract：:The deterministic force of natural selection and stochastic influence of drift shape RNA virus evolution. New deep-sequencing and microfluidics technologies allow us to quantify the effect of mutations and trace the evolution of viral populations with single-genome and single-nucleotide resolution. Such experiments ca...
journal_title：Cell host & microbe
pub_type： 杂志文章,评审
doi：10.1016/j.chom.2018.03.012
更新日期：2018-04-11 00:00:00
abstract：:The inner colon mucus layer capacity to separate bacteria from the epithelium is dependent on bacterial colonizers signaling to the host epithelium. In this issue of Cell Host & Microbe, Wlodarska et al. (2017) demonstrate that the mucin-utilizing Peptostreptococcus russellii protects the host from inflammatory diseas...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2017.06.011
更新日期：2017-07-12 00:00:00
abstract：:The Arabidopsis immune receptors RPS4 and RRS1 interact to co-confer responsiveness to bacterial effectors. The RRS1-R allele, with RPS4, responds to AvrRps4 and PopP2, whereas RRS1-S responds only to AvrRps4. Here, we show that the C terminus of RRS1-R but not RRS1-S is phosphorylated. Phosphorylation at Thr1214 in t...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2020.03.008
更新日期：2020-05-13 00:00:00
abstract：:Surface-associated TRAP (thrombospondin-related anonymous protein) family proteins are conserved across the phylum of apicomplexan parasites. TRAP proteins are thought to play an integral role in parasite motility and cell invasion by linking the extracellular environment with the parasite submembrane actomyosin motor...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2016.10.015
更新日期：2016-11-09 00:00:00
abstract：:Dietary factors, microbial composition, and metabolism are intimately intertwined into a complex network whose activities influence important intestinal functions. In a recent issue of Cell, Belcheva et al. (2014) show that microbial-derived butyrate promotes proliferation of cancer-initiated intestinal epithelial cel...
journal_title：Cell host & microbe
pub_type： 评论,杂志文章
doi：10.1016/j.chom.2014.07.011
更新日期：2014-08-13 00:00:00
abstract：:Quorum-sensing molecules (QSMs) are secreted by bacteria to signal population density. Upon reaching a critical concentration, QSMs induce transcriptional alterations in bacteria, which enable virulence factor expression and biofilm formation. It is unclear whether mammalian hosts can recognize QSMs to trigger respons...
journal_title：Cell host & microbe
pub_type： 杂志文章
doi：10.1016/j.chom.2019.06.003
更新日期：2019-07-10 00:00:00
