Evidence map›Paper›PMID 21737500›Full record

ArticleMicrobiology (Reading, England)2011

Altered protein secretion of Chlamydia trachomatis in persistently infected human endocervical epithelial cells.

Jin Wang, Kyla M Frohlich, Lyndsey Buckner, Alison J Quayle, Miao Luo, Xiaogeng Feng, Wandy Beatty, Ziyu Hua, Xiancai Rao, Maria E Lewis and 4 more

Open access · greenAbstract read
In one paragraph

Article in Microbiology (Reading, England), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.9field-weighted citation impact, top 11% 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

23 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Recognition ofInfection and immunity · 2024
    Article
  3. Diversity of σJournal of bacteriology · 2023
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Peptidase Inhibitor 15 (PI15) Regulates Chlamydial CPAF Activity.Frontiers in cellular and infection microbiology · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Membrane vesicle production by Chlamydia trachomatis as an adaptive response.Frontiers in cellular and infection microbiology · 2014
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

14 authors at 3 institutions in 1 country.

Jin WangDepartment of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Kyla M FrohlichDepartment of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Lyndsey BucknerDepartment of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Alison J QuayleDepartment of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Miao LuoDepartment of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Xiaogeng FengDepartment of Molecular Biology and Biochemistry, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Wandy BeattyDepartment of Molecular Microbiology, Washington University School of Medicine, St Louis, MO 63110, USA.
Ziyu HuaDepartment of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Xiancai RaoDepartment of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Maria E LewisDepartment of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Kelly SorrellsDepartment of Pathology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Kerri SantiagoDepartment of Pathology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Guangming ZhongDepartment of Microbiology and Immunology, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA.
Li ShenDepartment of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Louisiana State University Health Sciences Center New Orleans · USThe University of Texas Health Science Center at San Antonio · USWashington University in St. Louis · US

Funding

T. vaginalis Recurrence Among HIV+ WomenU19AI061972 · NIAID · LSU HEALTH SCIENCES CENTER · PI MYERS, LEANN · 2004 to 2009
$12.0M
Analyses of sigma factor 28 of C. trachomatisR01AI055869 · NIAID · LSU HEALTH SCIENCES CENTER · PI SHEN, LI · 2005 to 2010
$1.6M
NIAID NIH HHS AI055869NIAID NIH HHS R01 AI055869NIAID NIH HHS U19 AI061972NIAID NIH HHS U19AI061972
6 · The paper itself

Abstract

Chlamydia trachomatis is the most common bacterial infection of the human reproductive tract globally; however, the mechanisms underlying the adaptation of the organism to its natural target cells, human endocervical epithelial cells, are not clearly understood. To secure its intracellular niche, C. trachomatis must modulate the host cellular machinery by secreting virulence factors into the host cytosol to facilitate bacterial growth and survival. Here we used primary human endocervical epithelial cells and HeLa cells infected with C. trachomatis to examine the secretion of bacterial proteins during productive growth and persistent growth induced by ampicillin. Specifically, we observed a decrease in secretable chlamydial protease-like activity factor (CPAF) in the cytosol of host epithelial cells exposed to ampicillin with no evident reduction of CPAF product by C. trachomatis. In contrast, the expression of CopN and Tarp was downregulated, suggesting that C. trachomatis responds to ampicillin exposure by selectively altering the expression of secretable proteins. In addition, we observed a greater accumulation of outer-membrane vesicles from C. trachomatis in persistently infected cells. Taken together, these results suggest that the regulation of both gene expression and the secretion of chlamydial virulence proteins is involved in the adaptation of the bacteria to a persistent infection state in human genital epithelial cells.

Indexed as

Bacterial ProteinsCell LineCervix UteriChlamydia InfectionsChlamydia trachomatisDown-RegulationEndopeptidasesEpithelial CellsFemaleGene Expression Regulation, BacterialHumansProtein TransportUterine Cervical DiseasesBacterial ProteinsCPA factorEndopeptidases

Identifiers

PMID21737500
PMCPMC3353392
OpenAlexW2110068478

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.