Evidence map›Paper›PMID 19487469›Full record

ArticleInfection and immunity2009

Chlamydia trachomatis-infected patients display variable antibody profiles against the nine-member polymorphic membrane protein family.

Chun Tan, Ru-ching Hsia, Huizhong Shou, Catherine L Haggerty, Roberta B Ness, Charlotte A Gaydos, Deborah Dean, Amy M Scurlock, David P Wilson, Patrik M Bavoil

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
3.3field-weighted citation impact, top 9% 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

50 citing papers in PubMed, 81 citations in OpenAlex.

  1. Trial
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  5. Antibody responses toFrontiers in cellular and infection microbiology · 2024
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  6. Whole Genome Sequencing of aCurrent issues in molecular biology · 2023
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  8. Molecular pathogenesis ofFrontiers in cellular and infection microbiology · 2023
    Review
  9. Article
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  11. Article
  12. Polymorphic Membrane Protein 17G ofFrontiers in immunology · 2021
    Article
  13. Article
  14. Comparative Genome Analysis of 33Pathogens (Basel, Switzerland) · 2020
    Article
  15. Article
  16. Article
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  18. Early Transcriptional Landscapes ofFrontiers in cellular and infection microbiology · 2019
    Article
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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

10 authors at 5 institutions in 2 countries.

Chun TanDepartment of Microbial Pathogenesis, University of Maryland Dental School, Baltimore, 21201, USA.
Ru-ching Hsia
Huizhong Shou
Catherine L Haggerty
Roberta B Ness
Charlotte A Gaydos
Deborah Dean
Amy M Scurlock
David P Wilson
Patrik M Bavoil
University of Maryland, Baltimore · USJohns Hopkins University · USUniversity of Arkansas for Medical Sciences · USUniversity of Pittsburgh · USUNSW Sydney · AU

Funding

POLYMORPHIC MEMBRANE PROTEINS OF CHLAMYDIA TRACHOMATISR01AI051417 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI BAVOIL, PATRIK M · 2004 to 2010
$1.7M
Pathogenesis of Persistent Chlamydial STDsR01AI039499 · NIAID · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI DEAN, DEBORAH ANNE · 1997 to 2007
$1.3M
Immunoregulatory Networks in Chlamydia Genital Tract InfectionK08AI077932 · NIAID · ARKANSAS CHILDREN'S HOSPITAL RES INST · PI SCURLOCK, AMY M. · 2009 to 2013
$662k
Polymorphic membrane proteins of Chlamydia trachomatisR21AI051417 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI HSIA, RU-CHING · 2003 to 2003
$317k
EFFECTIVENESS OF OUTPATIENT TREATMENT FOR PIDR01HS008358 · AHRQ · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI NESS, ROBERTA B. · 1995 to 1999
–
AHRQ HHS HS08358-05AHRQ HHS R01 HS008358NIAID NIH HHS AI039499NIAID NIH HHS AI51417NIAID NIH HHS K08 AI077932NIAID NIH HHS R01 AI039499NIAID NIH HHS R01 AI051417NIAID NIH HHS R21 AI051417
6 · The paper itself

Abstract

Genomic analysis of the Chlamydiaceae has revealed a multigene family encoding large, putatively autotransported polymorphic membrane proteins (Pmps) with nine members in the sexually transmitted pathogen Chlamydia trachomatis. While various pathogenesis-related functions are emerging for the Pmps, observed genotypic and phenotypic variation among several chlamydial Pmps in various Chlamydia species has led us to hypothesize that the pmp gene repertoire is the basis of a previously undetected mechanism of antigenic variation. To test this hypothesis, we chose to examine the serologic response of C. trachomatis-infected patients to each Pmp subtype. Immune serum samples were collected from four populations of patients with confirmed C. trachomatis genital infection: 40 women with pelvic inflammatory disease from Pittsburgh, PA; 27 and 34 adolescent/young females from Oakland, CA, and Little Rock, AR, respectively; and 58 adult male patients from Baltimore, MD. The Pmp-specific antibody response was obtained using immunoblot analysis against each of the nine recombinantly expressed Pmps and quantified by densitometry. Our results show that nearly all C. trachomatis-infected patients mount a strong serologic response against individual or multiple Pmp subtypes and that the antibody specificity profile varies between patients. Moreover, our analysis reveals differences in the strengths and specificities of the Pmp subtype-specific antibody reactivity relating to gender and clinical outcome. Overall, our results indicate that the Pmps elicit various serologic responses in C. trachomatis-infected patients and are consistent with the pmp gene family being the basis of a mechanism of antigenic variation.

Indexed as

Antigenic VariationAdolescentAdultAntibodies, BacterialAntibody SpecificityBacterial ProteinsChlamydia InfectionsChlamydia trachomatisFemaleHumansImmunoblottingMaleMembrane ProteinsUnited StatesYoung AdultAntibodies, BacterialBacterial ProteinsMembrane Proteins

Identifiers

PMID19487469
PMCPMC2715660
OpenAlexW2154305113

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.