Evidence map›Paper›PMID 25781160›Full record

ArticlePloS one2015

Disrupting protein expression with Peptide Nucleic Acids reduces infection by obligate intracellular Rickettsia.

Rebecca S Pelc, Jennifer C McClure, Simran J Kaur, Khandra T Sears, M Sayeedur Rahman, Shane M Ceraul

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.7field-weighted citation impact, top 33% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 19 citations in OpenAlex.

  1. Microorganisms · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. PathogenicJournal of bacteriology · 2024
    Review
  9. International journal of molecular sciences · 2024
    Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Glutathione Synthesis Regulated by CtrA ProtectsFrontiers in microbiology · 2022
    Article
  15. Review
  16. Article
  17. Peptide Nucleic Acid Knockdown and Intra-host Cell Complementation ofFrontiers in cellular and infection microbiology · 2017
    Article
  18. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Rebecca S PelcDepartment of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
Jennifer C McClureDepartment of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
Simran J KaurDepartment of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
Khandra T SearsDepartment of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
M Sayeedur RahmanDepartment of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
Shane M CeraulDepartment of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
University of Maryland, Baltimore · US

Funding

MURINE TYPHUS: VECTOR BIOLOGY AND TRANSMISSIONR01AI017828 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI RAHMAN, MOHAMMED SAYEEDUR · 1985 to 2022
$10.2M
Murine Typhus: Vector Biology &TransmissionR37AI017828 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI AZAD, ABDU F · 1998 to 2007
$3.6M
INTERSPECIFIC COMPETITION BETWEEN RICKETTSIAE IN TICKSR01AI043006 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI AZAD, ABDU F · 1998 to 2014
$3.3M
NIAID NIH HHS 1K22AI08040-01A1NIAID NIH HHS R01 AI017828NIAID NIH HHS R01AI017828NIAID NIH HHS R01 AI043006NIAID NIH HHS R01AI043006
6 · The paper itself

Abstract

Peptide Nucleic Acids (PNAs) are single-stranded synthetic nucleic acids with a pseudopeptide backbone in lieu of the phosphodiester linked sugar and phosphate found in traditional oligos. PNA designed complementary to the bacterial Shine-Dalgarno or start codon regions of mRNA disrupts translation resulting in the transient reduction in protein expression. This study examines the use of PNA technology to interrupt protein expression in obligate intracellular Rickettsia sp. Their historically intractable genetic system limits characterization of protein function. We designed PNA targeting mRNA for rOmpB from Rickettsia typhi and rickA from Rickettsia montanensis, ubiquitous factors important for infection. Using an in vitro translation system and competitive binding assays, we determined that our PNAs bind target regions. Electroporation of R. typhi and R. montanensis with PNA specific to rOmpB and rickA, respectively, reduced the bacteria's ability to infect host cells. These studies open the possibility of using PNA to suppress protein synthesis in obligate intracellular bacteria.

Indexed as

AnimalsBacterial Outer Membrane ProteinsBacterial ProteinsBlotting, WesternCell-Penetrating PeptidesCells, CulturedChlorocebus aethiopsCytoplasmFibroblastsGene Expression Regulation, BacterialMicePeptide Nucleic AcidsProtein Processing, Post-TranslationalRickettsiaRickettsia InfectionsRNA, MessengerBacterial Outer Membrane ProteinsBacterial ProteinsCell-Penetrating PeptidesPeptide Nucleic AcidsRickA protein, RickettsiaRNA, MessengerrOmpA, Rickettsia

Identifiers

PMID25781160
PMCPMC4363562
OpenAlexW1970748378

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.