Retention and loss of RNA interference pathways in trypanosomatid protozoans.

abstract：:RIG-I-Like Receptors (RLRs) sense cytosolic viral RNA to transiently activate type I IFN production. Here, we report that a type I IFN inducible DExD/H helicase, DDX24, exerts a negative-regulatory effect on RLR function. Expression of DDX24 specifically suppressed RLR activity, while DDX24 loss, which caused embryoni...

journal_title：PLoS pathogens

authors： Ma Z,Moore R,Xu X,Barber GN

更新日期：2013-10-01 00:00:00

abstract：:Gastrointestinal infections caused by enteric yersiniae can become persistent and complicated by relapsing enteritis and severe autoimmune disorders. To establish a persistent infection, the bacteria have to cope with hostile surroundings when they transmigrate through the intestinal epithelium and colonize underlying...

journal_title：PLoS pathogens

authors： Heine W,Beckstette M,Heroven AK,Thiemann S,Heise U,Nuss AM,Pisano F,Strowig T,Dersch P

更新日期：2018-02-01 00:00:00

abstract：:T-follicular helper (Tfh) cells, co-expressing PD-1 and TIGIT, serve as a major cell reservoir for HIV-1 and are responsible for active and persistent HIV-1 transcription after prolonged antiretroviral therapy (ART). However, the precise mechanisms regulating HIV-1 transcription in lymph nodes (LNs) remain unclear. In...

journal_title：PLoS pathogens

authors： Banga R,Rebecchini C,Procopio FA,Noto A,Munoz O,Ioannidou K,Fenwick C,Ohmiti K,Cavassini M,Corpataux JM,de Leval L,Pantaleo G,Perreau M

更新日期：2019-07-22 00:00:00

abstract：:A central question in Leishmania research is why most species cause cutaneous infections but others cause fatal visceral disease. Interestingly, L. donovani causes both visceral and cutaneous leishmaniasis in Sri Lanka. L. donovani clinical isolates were therefore obtained from cutaneous leishmaniasis (CL-SL) and visc...

journal_title：PLoS pathogens

authors： Zhang WW,Ramasamy G,McCall LI,Haydock A,Ranasinghe S,Abeygunasekara P,Sirimanna G,Wickremasinghe R,Myler P,Matlashewski G

更新日期：2014-07-03 00:00:00

abstract：:The Spumaretrovirinae, or foamy viruses (FVs) are complex retroviruses that infect many species of monkey and ape. Despite little sequence homology, FV and orthoretroviral Gag proteins perform equivalent functions, including genome packaging, virion assembly, trafficking and membrane targeting. However, there is a pau...

journal_title：PLoS pathogens

authors： Ball NJ,Nicastro G,Dutta M,Pollard DJ,Goldstone DC,Sanz-Ramos M,Ramos A,Müllers E,Stirnnagel K,Stanke N,Lindemann D,Stoye JP,Taylor WR,Rosenthal PB,Taylor IA

更新日期：2016-11-09 00:00:00

abstract：:Infection of host tissues by Staphylococcus aureus and S. epidermidis requires an unusual family of staphylococcal adhesive proteins that contain long stretches of serine-aspartate dipeptide-repeats (SDR). The prototype member of this family is clumping factor A (ClfA), a key virulence factor that mediates adhesion to...

journal_title：PLoS pathogens

authors： Hazenbos WL,Kajihara KK,Vandlen R,Morisaki JH,Lehar SM,Kwakkenbos MJ,Beaumont T,Bakker AQ,Phung Q,Swem LR,Ramakrishnan S,Kim J,Xu M,Shah IM,Diep BA,Sai T,Sebrell A,Khalfin Y,Oh A,Koth C,Lin SJ,Lee BC,Strandh M

更新日期：2013-01-01 00:00:00

abstract：:The pathogenic fungus Cryptococcus neoformans exhibits morphological changes in cell size during lung infection, producing both typical size 5 to 7 μm cells and large titan cells (> 10 μm and up to 100 μm). We found and optimized in vitro conditions that produce titan cells in order to identify the ancestry of titan c...

journal_title：PLoS pathogens

authors： Hommel B,Mukaremera L,Cordero RJB,Coelho C,Desjardins CA,Sturny-Leclère A,Janbon G,Perfect JR,Fraser JA,Casadevall A,Cuomo CA,Dromer F,Nielsen K,Alanio A

更新日期：2018-05-18 00:00:00

abstract：:Prions are unorthodox infectious agents that replicate by templating misfolded conformations of a host-encoded glycoprotein, collectively termed PrPSc. Prion diseases are invariably fatal and currently incurable, but oral drugs that can prolong incubation times in prion-infected mice have been developed. Here, we test...

journal_title：PLoS pathogens

authors： Burke CM,Mark KMK,Kun J,Beauchemin KS,Supattapone S

更新日期：2020-05-18 00:00:00

abstract：:While immunological memory has long been considered the province of T- and B-lymphocytes, it has recently been reported that innate cell populations are capable of mediating memory responses. We now show that an innate memory immune response is generated in mice following infection with vaccinia virus, a poxvirus for ...

journal_title：PLoS pathogens

authors： Gillard GO,Bivas-Benita M,Hovav AH,Grandpre LE,Panas MW,Seaman MS,Haynes BF,Letvin NL

更新日期：2011-08-01 00:00:00

abstract：:Many viruses express factors that reduce host gene expression through widespread degradation of cellular mRNA. An example of this class of proteins is the mRNA-targeting endoribonuclease SOX from the gamma-herpesvirus Kaposi's sarcoma-associated herpesvirus (KSHV). Previous studies indicated that cleavage of messenger...

journal_title：PLoS pathogens

authors： Gaglia MM,Rycroft CH,Glaunsinger BA

更新日期：2015-12-08 00:00:00

abstract：:African trypanosomes of the Trypanosoma brucei species are extra-cellular parasites that cause human African trypanosomiasis (HAT) as well as infections in game animals and livestock. Trypanosomes are known to evade the immune response of their mammalian host by continuous antigenic variation of their surface coat. He...

journal_title：PLoS pathogens

authors： Radwanska M,Guirnalda P,De Trez C,Ryffel B,Black S,Magez S

更新日期：2008-05-30 00:00:00

abstract：:Zika virus (ZIKV) infects pregnant women and causes devastating congenital zika syndrome (CZS). How the virus is vertically transmitted to the fetus and induces neuronal loss remains unclear. We previously reported that Pellino (Peli)1, an E3 ubiquitin ligase, promotes p38MAPK activation in microglia and induction of ...

journal_title：PLoS pathogens

authors： Luo H,Li G,Wang B,Tian B,Gao J,Zou J,Shi S,Zhu S,Peng BH,Adam A,Martinez A,Hein K,Winkelmann ER,Mahmoud Y,Zhou X,Shan C,Rossi S,Weaver S,Barrett ADT,Sun SC,Zhang W,Shi PY,Wu P,Wang T

更新日期：2020-06-16 00:00:00

abstract：:To replicate, HIV-1 capitalizes on endogenous cellular activation pathways resulting in recruitment of key host transcription factors to its viral enhancer. RNA interference has been a powerful tool for blocking key checkpoints in HIV-1 entry into cells. Here we apply RNA interference to HIV-1 transcription in primary...

journal_title：PLoS pathogens

authors： Ranjbar S,Tsytsykova AV,Lee SK,Rajsbaum R,Falvo JV,Lieberman J,Shankar P,Goldfeld AE

更新日期：2006-12-01 00:00:00

abstract：:Pathogenic bacterial infections of the lung are life threatening and underpin chronic lung diseases. Current treatments are often ineffective potentially due to increasing antibiotic resistance and impairment of innate immunity by disease processes and steroid therapy. Manipulation miRNA directly regulating anti-micro...

journal_title：PLoS pathogens

authors： Tay HL,Kaiko GE,Plank M,Li J,Maltby S,Essilfie AT,Jarnicki A,Yang M,Mattes J,Hansbro PM,Foster PS

更新日期：2015-04-20 00:00:00

abstract：:Type I interferons (IFNs) play a critical role in host defense against influenza virus infection, and the mechanism of influenza virus to evade type I IFNs responses remains to be fully understood. Here, we found that progranulin (PGRN) was significantly increased both in vitro and in vivo during influenza virus infec...

journal_title：PLoS pathogens

authors： Wei F,Jiang Z,Sun H,Pu J,Sun Y,Wang M,Tong Q,Bi Y,Ma X,Gao GF,Liu J

更新日期：2019-10-04 00:00:00

abstract：:Eliciting broad tier 2 neutralizing antibodies (nAbs) is a major goal of HIV-1 vaccine research. Here we investigated the ability of native, membrane-expressed JR-FL Env trimers to elicit nAbs. Unusually potent nAb titers developed in 2 of 8 rabbits immunized with virus-like particles (VLPs) expressing trimers (trimer...

journal_title：PLoS pathogens

authors： Crooks ET,Tong T,Chakrabarti B,Narayan K,Georgiev IS,Menis S,Huang X,Kulp D,Osawa K,Muranaka J,Stewart-Jones G,Destefano J,O'Dell S,LaBranche C,Robinson JE,Montefiori DC,McKee K,Du SX,Doria-Rose N,Kwong PD,Mascola

更新日期：2015-05-29 00:00:00

abstract：:Acinetobacter baumannii is an important nosocomial pathogen that accounts for up to 20 percent of infections in intensive care units worldwide. Furthermore, A. baumannii strains have emerged that are resistant to all available antimicrobials. These facts highlight the dire need for new therapeutic strategies to combat...

journal_title：PLoS pathogens

authors： Hood MI,Mortensen BL,Moore JL,Zhang Y,Kehl-Fie TE,Sugitani N,Chazin WJ,Caprioli RM,Skaar EP

更新日期：2012-01-01 00:00:00

abstract：:Epstein-Barr virus (EBV) lytic replication proceeds through an ordered cascade of gene expression that integrates lytic DNA amplification and late gene transcription. We and others previously demonstrated that 6 EBV proteins that have orthologs in β- and γ-, but not in α-herpesviruses, mediate late gene transcription ...

journal_title：PLoS pathogens

authors： Djavadian R,Hayes M,Johannsen E

更新日期：2018-06-04 00:00:00

abstract：:The Haemophilus influenzae HMW1 adhesin is a high-molecular weight protein that is secreted by the bacterial two-partner secretion pathway and mediates adherence to respiratory epithelium, an essential early step in the pathogenesis of H. influenzae disease. In recent work, we discovered that HMW1 is a glycoprotein an...

journal_title：PLoS pathogens

authors： Grass S,Lichti CF,Townsend RR,Gross J,St Geme JW 3rd

更新日期：2010-05-27 00:00:00

abstract：:As targets of adaptive immunity, influenza viruses are characterized by the fluidity with which they respond to the selective pressure applied by neutralizing antibodies. This mutability of structural determinants of protective immunity is the obstacle in developing universal influenza vaccines. Towards the developmen...

journal_title：PLoS pathogens

authors： Wang TT,Tan GS,Hai R,Pica N,Petersen E,Moran TM,Palese P

更新日期：2010-02-26 00:00:00

abstract：:Understanding the roles of neutrophils and macrophages in fighting bacterial infections is a critical issue in human pathologies. Although phagocytic killing has been extensively studied, little is known about how bacteria are eliminated extracellularly in live vertebrates. We have recently developed an infection mode...

journal_title：PLoS pathogens

authors： Phan QT,Sipka T,Gonzalez C,Levraud JP,Lutfalla G,Nguyen-Chi M

更新日期：2018-07-17 00:00:00

abstract：:For Hepatitis C virus (HCV), initiation of translation is cap-independently mediated by its internal ribosome entry site (IRES). Unlike other IRES-containing viruses that shut off host cap-dependent translation, translation of HCV coexists with that of the host. How HCV IRES-mediated translation is regulated in the in...

journal_title：PLoS pathogens

authors： Huang JY,Su WC,Jeng KS,Chang TH,Lai MM

更新日期：2012-06-01 00:00:00

abstract：:Gene expression of DNA viruses requires nuclear import of the viral genome. Human Adenoviruses (Ads), like most DNA viruses, encode factors within early transcription units promoting their own gene expression and counteracting cellular antiviral defense mechanisms. The cellular transcriptional repressor Daxx prevents ...

journal_title：PLoS pathogens

authors： Schreiner S,Martinez R,Groitl P,Rayne F,Vaillant R,Wimmer P,Bossis G,Sternsdorf T,Marcinowski L,Ruzsics Z,Dobner T,Wodrich H

更新日期：2012-02-01 00:00:00

abstract：:Mitochondrial processing peptidases are heterodimeric enzymes (alpha/betaMPP) that play an essential role in mitochondrial biogenesis by recognizing and cleaving the targeting presequences of nuclear-encoded mitochondrial proteins. The two subunits are paralogues that probably evolved by duplication of a gene for a mo...

journal_title：PLoS pathogens

authors： Smíd O,Matusková A,Harris SR,Kucera T,Novotný M,Horváthová L,Hrdý I,Kutejová E,Hirt RP,Embley TM,Janata J,Tachezy J

更新日期：2008-12-01 00:00:00

abstract：:The nuclear lamina lines the inner nuclear membrane providing a structural framework for the nucleus. Cellular processes, such as nuclear envelope breakdown during mitosis or nuclear export of large ribonucleoprotein complexes, are functionally linked to the disassembly of the nuclear lamina. In general, lamina disass...

journal_title：PLoS pathogens

authors： Milbradt J,Hutterer C,Bahsi H,Wagner S,Sonntag E,Horn AH,Kaufer BB,Mori Y,Sticht H,Fossen T,Marschall M

更新日期：2016-08-24 00:00:00

abstract：:The ability of pathogens to escape the host's immune response is crucial for the establishment of persistent infections and can influence virulence. Recombination has been observed to contribute to this process by generating novel genetic variants. Although distinctive recombination patterns have been described in man...

journal_title：PLoS pathogens

authors： Simon-Loriere E,Galetto R,Hamoudi M,Archer J,Lefeuvre P,Martin DP,Robertson DL,Negroni M

更新日期：2009-05-01 00:00:00

abstract：:Vertical transmission (VT) and horizontal transmission (HT) of pathogens refer to parental and non-parental chains of host-to-host transmission. Combining HT with VT enlarges considerably the range of ecological conditions in which a pathogen can persist, but the factors governing the relative frequency of each transm...

journal_title：PLoS pathogens

authors： Lequime S,Paul RE,Lambrechts L

更新日期：2016-05-12 00:00:00

abstract：:Regulated protein secretion is required for malaria parasite life cycle progression and transmission between the mammalian host and mosquito vector. During transmission from the host to the vector, exocytosis of highly specialised secretory vesicles, such as osmiophilic bodies, is key to the dissolution of the red blo...

journal_title：PLoS pathogens

authors： Kehrer J,Singer M,Lemgruber L,Silva PA,Frischknecht F,Mair GR

更新日期：2016-07-18 00:00:00

abstract：:Identification of the determinants of pathogen reservoir potential is central to understand disease emergence. It has been proposed that host lifespan is one such determinant: short-lived hosts will invest less in costly defenses against pathogens, so that they will be more susceptible to infection, more competent as ...

journal_title：PLoS pathogens

authors： Hily JM,García A,Moreno A,Plaza M,Wilkinson MD,Fereres A,Fraile A,García-Arenal F

更新日期：2014-11-06 00:00:00

abstract：:Pseudomonas aeruginosa is one of the leading causes of nosocomial pneumonia and its associated mortality. Moreover, extensively drug-resistant high-risk clones are globally widespread, presenting a major challenge to the healthcare systems. Despite this, no vaccine is available against this high-concerning pathogen. H...

journal_title：PLoS pathogens

authors： Cabral MP,Correia A,Vilanova M,Gärtner F,Moscoso M,García P,Vallejo JA,Pérez A,Francisco-Tomé M,Fuentes-Valverde V,Bou G

更新日期：2020-02-10 00:00:00