Evidence map›Paper›PMID 20211240›Full record

ArticleMicrobial pathogenesis2010

Polymorphisms in the Pseudomonas aeruginosa type III secretion protein, PcrV - implications for anti-PcrV immunotherapy.

Susan V Lynch, Judith L Flanagan, Teiji Sawa, Alice Fang, Marshall S Baek, Amua Rubio-Mills, Temitayo Ajayi, Katsunori Yanagihara, Yoichi Hirakata, Shigeru Kohno and 3 more

Abstract read
In one paragraph

Article in Microbial pathogenesis, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.8field-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

16 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
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  6. Review
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  8. Review
  9. Development of a Chimeric Vaccine AgainstFrontiers in immunology · 2020
    Article
  10. Article
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  15. Review
  16. Article
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

13 authors at 3 institutions in 3 countries.

Susan V LynchDepartment of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA. susan.lynch@ucsf.edu
Judith L Flanagan
Teiji Sawa
Alice Fang
Marshall S Baek
Amua Rubio-Mills
Temitayo Ajayi
Katsunori Yanagihara
Yoichi Hirakata
Shigeru Kohno
Benoit Misset
Jean-Claude Nguyen
Jeanine P Wiener-Kronish
University of California, San Francisco · USNagasaki University · JPHôpital Saint Joseph · FR

Funding

Therapy for Clinical Acute Lung Injury with APCP50HL074005 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BURLINGAME, ALMA L · 2003 to 2007
$9.6M
Gene Expression and Pathogenicity of P.aeruginosaR01HL069809 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LYNCH, SUSAN VERONICA · 2004 to 2007
$1.5M
Animal Testing of a Blocking Antibody of PcrVR41HL067600 · NHLBI · INTERMUNE PHARMACEUTICALS, INC. · PI SAWA, TEIJI · 2002 to 2002
$209k
NHLBI NIH HHS HL067600NHLBI NIH HHS HL69809NHLBI NIH HHS P50 HL074005NHLBI NIH HHS PH50HL74005NHLBI NIH HHS R01 HL069809
6 · The paper itself

Abstract

The type III secretion system of Pseudomonas aeruginosa, responsible for acute infection, is composed of over twenty proteins that facilitate cytotoxin injection directly into host cells. Integral to this process is production and secretion of PcrV. Administration of a recently developed, anti-PcrV immunoglobulin, either as a therapeutic or prophylactic has previously demonstrated efficacy against laboratory strains of P. aeruginosa in a murine model. To determine if this therapy is universally applicable to a variety of P. aeruginosa clinical isolates, genetic heterogeneity of pcrV was analyzed among strains collected from three geographically distinct regions; United States, France and Japan. Sequence analysis of PcrV demonstrated limited variation among the clinical isolates examined. Strains were grouped according to the presence of non-synonymous single nucleotide polymorphisms. Representative isolates from each mutant group were examined for the ability of anti-PcrV to bind the protein secreted by these strains. The protective effect of anti-PcrV IgG against each strain was determined using an epithelial cell line cytotoxicity assay. The majority of strains tested demonstrated reduced cytotoxicity in the presence of anti-PcrV IgG. This study provides insights into the natural sequence variability of PcrV and an initial indication of the amino acid residues that appear to be conserved across strains. It also demonstrates the protective effect of anti-PcrV immunotherapy against a multitude of P. aeruginosa strains from diverse global regions with a variety of mutations in PcrV.

Indexed as

Antibodies, BacterialAntigens, BacterialBacterial ToxinsCell LineDNA, BacterialFranceHumansImmunoglobulin GJapanMutationPolymorphism, GeneticPore Forming Cytotoxic ProteinsProtein TransportPseudomonas aeruginosaRandom Amplified Polymorphic DNA TechniqueSequence Analysis, DNAAntibodies, BacterialAntigens, Bacterialantigen V, PseudomonasBacterial ToxinsDNA, BacterialImmunoglobulin GPore Forming Cytotoxic Proteins

Identifiers

PMID20211240
PMCPMC2860055
OpenAlexW2081376749

What OpenQuestion holds

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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.