Compartmentation of redox metabolism in malaria parasites.

Abstract:

:Malaria, caused by the apicomplexan parasite Plasmodium, still represents a major threat to human health and welfare and leads to about one million human deaths annually. Plasmodium is a rapidly multiplying unicellular organism undergoing a complex developmental cycle in man and mosquito - a life style that requires rapid adaptation to various environments. In order to deal with high fluxes of reactive oxygen species and maintain redox regulatory processes and pathogenicity, Plasmodium depends upon an adequate redox balance. By systematically studying the subcellular localization of the major antioxidant and redox regulatory proteins, we obtained the first complete map of redox compartmentation in Plasmodium falciparum. We demonstrate the targeting of two plasmodial peroxiredoxins and a putative glyoxalase system to the apicoplast, a non-photosynthetic plastid. We furthermore obtained a complete picture of the compartmentation of thioredoxin- and glutaredoxin-like proteins. Notably, for the two major antioxidant redox-enzymes--glutathione reductase and thioredoxin reductase--Plasmodium makes use of alternative-translation-initiation (ATI) to achieve differential targeting. Dual localization of proteins effected by ATI is likely to occur also in other Apicomplexa and might open new avenues for therapeutic intervention.

journal_name

PLoS Pathog

journal_title

PLoS pathogens

authors

Kehr S,Sturm N,Rahlfs S,Przyborski JM,Becker K

doi

10.1371/journal.ppat.1001242

subject

Has Abstract

pub_date

2010-12-23 00:00:00

pages

e1001242

issue

12

eissn

1553-7366

issn

1553-7374

journal_volume

6

pub_type

杂志文章
  • Engagement of NKG2D on bystander memory CD8 T cells promotes increased immunopathology following Leishmania major infection.

    abstract::One of the hallmarks of adaptive immunity is the development of a long-term pathogen specific memory response. While persistent memory T cells certainly impact the immune response during a secondary challenge, their role in unrelated infections is less clear. To address this issue, we utilized lymphocytic choriomening...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1003970

    authors: Crosby EJ,Goldschmidt MH,Wherry EJ,Scott P

    更新日期:2014-02-27 00:00:00

  • A combination of independent transcriptional regulators shapes bacterial virulence gene expression during infection.

    abstract::Transcriptional regulatory networks are fundamental to how microbes alter gene expression in response to environmental stimuli, thereby playing a critical role in bacterial pathogenesis. However, understanding how bacterial transcriptional regulatory networks function during host-pathogen interaction is limited. Recen...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1000817

    authors: Shelburne SA,Olsen RJ,Suber B,Sahasrabhojane P,Sumby P,Brennan RG,Musser JM

    更新日期:2010-03-19 00:00:00

  • Ablation of the regulatory IE1 protein of murine cytomegalovirus alters in vivo pro-inflammatory TNF-alpha production during acute infection.

    abstract::Little is known about the role of viral genes in modulating host cytokine responses. Here we report a new functional role of the viral encoded IE1 protein of the murine cytomegalovirus in sculpting the inflammatory response in an acute infection. In time course experiments of infected primary macrophages (MΦs) measuri...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002901

    authors: Rodríguez-Martín S,Kropp KA,Wilhelmi V,Lisnic VJ,Hsieh WY,Blanc M,Livingston A,Busche A,Tekotte H,Messerle M,Auer M,Fraser I,Jonjic S,Angulo A,Reddehase MJ,Ghazal P

    更新日期:2012-01-01 00:00:00

  • GEF-H1 mediated control of NOD1 dependent NF-kappaB activation by Shigella effectors.

    abstract::Shigella flexneri has evolved the ability to modify host cell function with intracellular active effectors to overcome the intestinal barrier. The detection of these microbial effectors and the initiation of innate immune responses are critical for rapid mucosal defense activation. The guanine nucleotide exchange fact...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1000228

    authors: Fukazawa A,Alonso C,Kurachi K,Gupta S,Lesser CF,McCormick BA,Reinecker HC

    更新日期:2008-11-01 00:00:00

  • Therapeutic helminth infection of macaques with idiopathic chronic diarrhea alters the inflammatory signature and mucosal microbiota of the colon.

    abstract::Idiopathic chronic diarrhea (ICD) is a leading cause of morbidity amongst rhesus monkeys kept in captivity. Here, we show that exposure of affected animals to the whipworm Trichuris trichiura led to clinical improvement in fecal consistency, accompanied by weight gain, in four out of the five treated monkeys. By flow ...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1003000

    authors: Broadhurst MJ,Ardeshir A,Kanwar B,Mirpuri J,Gundra UM,Leung JM,Wiens KE,Vujkovic-Cvijin I,Kim CC,Yarovinsky F,Lerche NW,McCune JM,Loke P

    更新日期:2012-01-01 00:00:00

  • Crystal Structure of the Human Cytomegalovirus Glycoprotein B.

    abstract::Human cytomegalovirus (HCMV), a dsDNA, enveloped virus, is a ubiquitous pathogen that establishes lifelong latent infections and caused disease in persons with compromised immune systems, e.g., organ transplant recipients or AIDS patients. HCMV is also a leading cause of congenital viral infections in newborns. Entry ...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1005227

    authors: Burke HG,Heldwein EE

    更新日期:2015-10-20 00:00:00

  • Silencing of transcription factor encoding gene StTCP23 by small RNAs derived from the virulence modulating region of potato spindle tuber viroid is associated with symptom development in potato.

    abstract::Viroids are small, non-protein-coding RNAs which can induce disease symptoms in a variety of plant species. Potato (Solanum tuberosum L.) is the natural host of Potato spindle tuber viroid (PSTVd) where infection results in stunting, distortion of leaves and tubers and yield loss. Replication of PSTVd is accompanied b...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1008110

    authors: Bao S,Owens RA,Sun Q,Song H,Liu Y,Eamens AL,Feng H,Tian H,Wang MB,Zhang R

    更新日期:2019-12-02 00:00:00

  • Thy1+ NK [corrected] cells from vaccinia virus-primed mice confer protection against vaccinia virus challenge in the absence of adaptive lymphocytes.

    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

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002141

    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

  • Influenza HA subtypes demonstrate divergent phenotypes for cleavage activation and pH of fusion: implications for host range and adaptation.

    abstract::The influenza A virus (IAV) HA protein must be activated by host cells proteases in order to prime the molecule for fusion. Consequently, the availability of activating proteases and the susceptibility of HA to protease activity represents key factors in facilitating virus infection. As such, understanding the intrica...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1003151

    authors: Galloway SE,Reed ML,Russell CJ,Steinhauer DA

    更新日期:2013-02-01 00:00:00

  • Alpha-defensin 5 differentially modulates adenovirus vaccine vectors from different serotypes in vivo.

    abstract::Adenoviral vectors have shown significant promise as vaccine delivery vectors due to their ability to elicit both innate and adaptive immune responses. α-defensins are effector molecules of the innate immune response and have been shown to modulate natural infection with adenoviruses, but the majority of α-defensin-ad...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1008180

    authors: Tartaglia LJ,Badamchi-Zadeh A,Abbink P,Blass E,Aid M,Gebre MS,Li Z,Pastores KC,Trott S,Gupte S,Larocca RA,Barouch DH

    更新日期:2019-12-16 00:00:00

  • Host cytosolic RNA sensing pathway promotes T Lymphocyte-mediated mycobacterial killing in macrophages.

    abstract::Mycobacterial infection leads to activation of the RIG-I/MAVS/TBK1 RNA sensing pathway in macrophages but the consequences of this activation remains poorly defined. In this study, we determined that activation of this RNA sensing pathway stimulates ICAM-1 expression in M.avium-infected macrophage through the inhibiti...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1008569

    authors: Cheng Y,Kiene NJ,Tatarian A,Eix EF,Schorey JS

    更新日期:2020-05-28 00:00:00

  • Identification of an Acinetobacter baumannii zinc acquisition system that facilitates resistance to calprotectin-mediated zinc sequestration.

    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

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1003068

    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

  • C. elegans germ cells show temperature and age-dependent expression of Cer1, a Gypsy/Ty3-related retrotransposon.

    abstract::Virus-like particles (VLPs) have not been observed in Caenorhabditis germ cells, although nematode genomes contain low numbers of retrotransposon and retroviral sequences. We used electron microscopy to search for VLPs in various wild strains of Caenorhabditis, and observed very rare candidate VLPs in some strains, in...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002591

    authors: Dennis S,Sheth U,Feldman JL,English KA,Priess JR

    更新日期:2012-01-01 00:00:00

  • Dual miRNA targeting restricts host range and attenuates neurovirulence of flaviviruses.

    abstract::Mosquito-borne flaviviruses are among the most significant arboviral pathogens worldwide. Vaccinations and mosquito population control programs remain the most reliable means for flavivirus disease prevention, and live attenuated viruses remain one of the most attractive flavivirus vaccine platforms. Some live attenua...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1004852

    authors: Tsetsarkin KA,Liu G,Kenney H,Bustos-Arriaga J,Hanson CT,Whitehead SS,Pletnev AG

    更新日期:2015-04-23 00:00:00

  • Correction: Mutant prion proteins increase calcium permeability of AMPA receptors, exacerbating excitotoxicity.

    abstract::[This corrects the article DOI: 10.1371/journal.ppat.1008654.]. ...

    journal_title:PLoS pathogens

    pub_type: 已发布勘误

    doi:10.1371/journal.ppat.1009174

    authors: Ghirardini E,Restelli E,Morini R,Bertani I,Ortolan D,Perrucci F,Pozzi D,Matteoli M,Chiesa R

    更新日期:2020-12-22 00:00:00

  • A leucine aminopeptidase is involved in kinetoplast DNA segregation in Trypanosoma brucei.

    abstract::The kinetoplast (k), the uniquely packaged mitochondrial DNA of trypanosomatid protists is formed by a catenated network of minicircles and maxicircles that divide and segregate once each cell cycle. Although many proteins involved in kDNA replication and segregation are now known, several key steps in the replication...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1006310

    authors: Peña-Diaz P,Vancová M,Resl C,Field MC,Lukeš J

    更新日期:2017-04-07 00:00:00

  • Genome-scale multilocus microsatellite typing of Trypanosoma cruzi discrete typing unit I reveals phylogeographic structure and specific genotypes linked to human infection.

    abstract::Trypanosoma cruzi is the most important parasitic infection in Latin America and is also genetically highly diverse, with at least six discrete typing units (DTUs) reported: Tc I, IIa, IIb, IIc, IId, and IIe. However, the current six-genotype classification is likely to be a poor reflection of the total genetic divers...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1000410

    authors: Llewellyn MS,Miles MA,Carrasco HJ,Lewis MD,Yeo M,Vargas J,Torrico F,Diosque P,Valente V,Valente SA,Gaunt MW

    更新日期:2009-05-01 00:00:00

  • Cucumber mosaic virus coat protein modulates the accumulation of 2b protein and antiviral silencing that causes symptom recovery in planta.

    abstract::Shoot apical meristems (SAM) are resistant to most plant viruses due to RNA silencing, which is restrained by viral suppressors of RNA silencing (VSRs) to facilitate transient viral invasion of the SAM. In many cases chronic symptoms and long-term virus recovery occur, but the underlying mechanisms are poorly understo...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1006522

    authors: Zhang XP,Liu DS,Yan T,Fang XD,Dong K,Xu J,Wang Y,Yu JL,Wang XB

    更新日期:2017-07-20 00:00:00

  • Cytoplasmic viral RNA-dependent RNA polymerase disrupts the intracellular splicing machinery by entering the nucleus and interfering with Prp8.

    abstract::The primary role of cytoplasmic viral RNA-dependent RNA polymerase (RdRp) is viral genome replication in the cellular cytoplasm. However, picornaviral RdRp denoted 3D polymerase (3D(pol)) also enters the host nucleus, where its function remains unclear. In this study, we describe a novel mechanism of viral attack in w...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1004199

    authors: Liu YC,Kuo RL,Lin JY,Huang PN,Huang Y,Liu H,Arnold JJ,Chen SJ,Wang RY,Cameron CE,Shih SR

    更新日期:2014-06-26 00:00:00

  • Sensing of immature particles produced by dengue virus infected cells induces an antiviral response by plasmacytoid dendritic cells.

    abstract::Dengue virus (DENV) is the leading cause of mosquito-borne viral illness and death in humans. Like many viruses, DENV has evolved potent mechanisms that abolish the antiviral response within infected cells. Nevertheless, several in vivo studies have demonstrated a key role of the innate immune response in controlling ...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1004434

    authors: Décembre E,Assil S,Hillaire ML,Dejnirattisai W,Mongkolsapaya J,Screaton GR,Davidson AD,Dreux M

    更新日期:2014-10-23 00:00:00

  • Dengue Virus Nonstructural Protein 5 (NS5) Assembles into a Dimer with a Unique Methyltransferase and Polymerase Interface.

    abstract::Flavivirus nonstructural protein 5 (NS5) consists of methyltransferase (MTase) and RNA-dependent RNA polymerase (RdRp) domains, which catalyze 5'-RNA capping/methylation and RNA synthesis, respectively, during viral genome replication. Although the crystal structure of flavivirus NS5 is known, no data about the quater...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1005451

    authors: Klema VJ,Ye M,Hindupur A,Teramoto T,Gottipati K,Padmanabhan R,Choi KH

    更新日期:2016-02-19 00:00:00

  • Kaposi's sarcoma-associated herpesvirus ORF45 interacts with kinesin-2 transporting viral capsid-tegument complexes along microtubules.

    abstract::Open reading frame (ORF) 45 of Kaposi's sarcoma-associated herpesvirus (KSHV) is a tegument protein. A genetic analysis with a null mutant suggested a possible role for this protein in the events leading to viral egress. In this study, ORF45 was found to interact with KIF3A, a kinesin-2 motor protein that transports c...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1000332

    authors: Sathish N,Zhu FX,Yuan Y

    更新日期:2009-03-01 00:00:00

  • A communal bacterial adhesin anchors biofilm and bystander cells to surfaces.

    abstract::While the exopolysaccharide component of the biofilm matrix has been intensively studied, much less is known about matrix-associated proteins. To better understand the role of these proteins, we undertook a proteomic analysis of the V. cholerae biofilm matrix. Here we show that the two matrix-associated proteins, Bap1...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002210

    authors: Absalon C,Van Dellen K,Watnick PI

    更新日期:2011-08-01 00:00:00

  • Ubiquitin-regulated nuclear-cytoplasmic trafficking of the Nipah virus matrix protein is important for viral budding.

    abstract::Paramyxoviruses are known to replicate in the cytoplasm and bud from the plasma membrane. Matrix is the major structural protein in paramyxoviruses that mediates viral assembly and budding. Curiously, the matrix proteins of a few paramyxoviruses have been found in the nucleus, although the biological function associat...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1001186

    authors: Wang YE,Park A,Lake M,Pentecost M,Torres B,Yun TE,Wolf MC,Holbrook MR,Freiberg AN,Lee B

    更新日期:2010-11-11 00:00:00

  • Interferon-induced Ifit2/ISG54 protects mice from lethal VSV neuropathogenesis.

    abstract::Interferon protects mice from vesicular stomatitis virus (VSV) infection and pathogenesis; however, it is not known which of the numerous interferon-stimulated genes (ISG) mediate the antiviral effect. A prominent family of ISGs is the interferon-induced with tetratricopeptide repeats (Ifit) genes comprising three mem...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002712

    authors: Fensterl V,Wetzel JL,Ramachandran S,Ogino T,Stohlman SA,Bergmann CC,Diamond MS,Virgin HW,Sen GC

    更新日期:2012-01-01 00:00:00

  • A point mutation in a herpesvirus polymerase determines neuropathogenicity.

    abstract::Infection with equid herpesvirus type 1 (EHV-1) leads to respiratory disease, abortion, and neurologic disorders in horses. Molecular epidemiology studies have demonstrated that a single nucleotide polymorphism resulting in an amino acid variation of the EHV-1 DNA polymerase (N752/D752) is significantly associated wit...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.0030160

    authors: Goodman LB,Loregian A,Perkins GA,Nugent J,Buckles EL,Mercorelli B,Kydd JH,Palù G,Smith KC,Osterrieder N,Davis-Poynter N

    更新日期:2007-11-01 00:00:00

  • Correction: Leptospiral LPS escapes mouse TLR4 internalization and TRIF-associated antimicrobial responses through O antigen and associated lipoproteins.

    abstract::[This corrects the article DOI: 10.1371/journal.ppat.1008639.]. ...

    journal_title:PLoS pathogens

    pub_type: 已发布勘误

    doi:10.1371/journal.ppat.1009173

    authors: Bonhomme D,Santecchia I,Vernel-Pauillac F,Caroff M,Germon P,Murray G,Adler B,Boneca IG,Werts C

    更新日期:2020-12-23 00:00:00

  • Sequential bottlenecks drive viral evolution in early acute hepatitis C virus infection.

    abstract::Hepatitis C is a pandemic human RNA virus, which commonly causes chronic infection and liver disease. The characterization of viral populations that successfully initiate infection, and also those that drive progression to chronicity is instrumental for understanding pathogenesis and vaccine design. A comprehensive an...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002243

    authors: Bull RA,Luciani F,McElroy K,Gaudieri S,Pham ST,Chopra A,Cameron B,Maher L,Dore GJ,White PA,Lloyd AR

    更新日期:2011-09-01 00:00:00

  • A role for the chemokine RANTES in regulating CD8 T cell responses during chronic viral infection.

    abstract::RANTES (CCL5) is a chemokine expressed by many hematopoietic and non-hematopoietic cell types that plays an important role in homing and migration of effector and memory T cells during acute infections. The RANTES receptor, CCR5, is a major target of anti-HIV drugs based on blocking viral entry. However, defects in RA...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1002098

    authors: Crawford A,Angelosanto JM,Nadwodny KL,Blackburn SD,Wherry EJ

    更新日期:2011-07-01 00:00:00

  • Haemophilus responses to nutritional immunity: epigenetic and morphological contribution to biofilm architecture, invasion, persistence and disease severity.

    abstract::In an effort to suppress microbial outgrowth, the host sequesters essential nutrients in a process termed nutritional immunity. However, inflammatory responses to bacterial insult can restore nutritional resources. Given that nutrient availability modulates virulence factor production and biofilm formation by other ba...

    journal_title:PLoS pathogens

    pub_type: 杂志文章

    doi:10.1371/journal.ppat.1003709

    authors: Szelestey BR,Heimlich DR,Raffel FK,Justice SS,Mason KM

    更新日期:2013-01-01 00:00:00