Evidence map›Paper›PMID 26333940›Full record

ArticleThe Journal of infectious diseases2016

Pseudomonas aeruginosa Bacteremic Patients Exhibit Nonprotective Antibody Titers Against Therapeutic Antibody Targets PcrV and Psl Exopolysaccharide.

Joshua T Thaden, Ashley E Keller, Norah J Shire, M Margarita Camara, Linda Otterson, Mike Huband, Caitlin M Guenther, Wei Zhao, Paul Warrener, C Kendall Stover and 2 more

Abstract read
In one paragraph

Article in The Journal of infectious diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
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

10 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. 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

12 authors.

Joshua T ThadenDivision of Infectious Diseases, Duke University, Durham, North Carolina.
Ashley E KellerMedImmune, LLC, Gaithersburg, Maryland.
Norah J ShireMedImmune, LLC, Gaithersburg, Maryland.
M Margarita CamaraMedImmune, LLC, Gaithersburg, Maryland.
Linda OttersonAstrazeneca, Waltham, Massachusetts.
Mike HubandAstrazeneca, Waltham, Massachusetts.
Caitlin M GuentherMedImmune, LLC, Gaithersburg, Maryland.
Wei ZhaoMedImmune, LLC, Gaithersburg, Maryland.
Paul WarrenerMedImmune, LLC, Gaithersburg, Maryland.
C Kendall StoverMedImmune, LLC, Gaithersburg, Maryland.
Vance G FowlerDivision of Infectious Diseases, Duke University, Durham, North Carolina.
Antonio DiGiandomenicoMedImmune, LLC, Gaithersburg, Maryland.

Funding

Antibacterial Resistance Leadership Group (ARLG)UM1AI104681 · NIAID · DUKE UNIVERSITY · PI Vance G. Fowler, Henry F HENRY CHAMBERS · 2013 to 2026
$180.8M
Mentoring Patient Oriented Research in Antibiotic-Resistant BacteriaK24AI093969 · NIAID · DUKE UNIVERSITY · PI FOWLER, VANCE G. · 2011 to 2020
$1.6M
NIAID NIH HHS K24 AI093969NIAID NIH HHS UM1 AI104681NIAID NIH HHS UM1-AI104681
6 · The paper itself

Abstract

backgroundThe type 3 secretion protein PcrV and Psl exopolysaccharide are promising therapeutic antibody targets against Pseudomonas aeruginosa. We examined P. aeruginosa bloodstream infection (BSI) isolates for the ability to express PcrV and Psl and evaluated corresponding patient serum for active titers to these targets.

methodsWe identified 114 patients with acute P. aeruginosa BSI; 56 cases were accompanied by acute sera. Serum was evaluated for PcrV- and Psl-specific immunoglobulin G (IgG) and for cytotoxicity and opsonophagocytosis. Isolates were evaluated for susceptibility to antibiotics, expression of PcrV and Psl, and susceptibility to the anti-PcrV/Psl bispecific antibody and clinical candidate MEDI3902.

resultsIn-hospital mortality for patients with P. aeruginosa BSI was 39%. A total of 26% of isolates were resistant to ≥3 antibiotic classes. Although PcrV and/or Psl were detected in 99% of isolates, a majority of patients lacked active titers to PcrV (100%) and Psl (98%). In addition, MEDI3902 was active against all tested isolates.

conclusionsA vast majority of P. aeruginosa BSI isolates express PcrV and Psl; however, patient sera most often lacked IgG and functionally active responses to these targets. These results suggest that therapies directed at PcrV and Psl could be a promising approach for combating P. aeruginosa bloodstream infections.

Indexed as

AnimalsAnti-Bacterial AgentsAntibodies, BacterialAntibody-Dependent Cell CytotoxicityAntigens, BacterialBacteremiaFemaleHumansImmunoglobulin GMaleMiceMicrobial Sensitivity TestsMiddle AgedOpsonin ProteinsPhagocytosisProspective StudiesAnti-Bacterial AgentsAntibodies, BacterialAntigens, BacterialImmunoglobulin GOpsonin Proteinsbacteremiabispecific antibodyprophylaxisPseudomonas aeruginosaPsl exopolysaccharidetype 3 secretion

Identifiers

PMID26333940
PMCPMC4721907

What OpenQuestion holds

Textmetadata
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.