Evidence map›Paper›PMID 15213115›Full record

ArticleInfection and immunity2004

Identification of Porphyromonas gingivalis genes specifically expressed in human gingival epithelial cells by using differential display reverse transcription-PCR.

Yoonsuk Park, Ozlem Yilmaz, Il-Young Jung, Richard J Lamont

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.9field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Evaluation of A. actinomycetemcomitans and P. gingivalis from the mouth of patients irradiated in the head and neck region: a cross-sectional study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
    Article
  4. Oral Pathobiont-Derived Outer Membrane Vesicles in the Oral-Gut Axis.International journal of molecular sciences · 2024
    Review
  5. Article
  6. Article
  7. Frontiers in microbiology · 2021
    Article
  8. Review
  9. Article
  10. Article
  11. Genes Contributing toFrontiers in cellular and infection microbiology · 2017
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  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

4 authors at 3 institutions in 2 countries.

Yoonsuk ParkDepartment of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL 32610, USA.
Ozlem Yilmaz
Il-Young Jung
Richard J Lamont
University of Florida · USUniversity of Washington · USYonsei University · KR

Funding

P GINGIVALIS INTERACTIONS WITH GINGIVAL EPITHELIAL CELLSR01DE011111 · NIDCR · UNIVERSITY OF WASHINGTON · PI HARIBABU BODDULURI, Richard J Lamont · 1995 to 2026
$5.4M
P.gingivalis Interactions with Gingival Epithelial CellsR37DE011111 · NIDCR · UNIVERSITY OF LOUISVILLE · PI LAMONT, RICHARD J · 2009 to 2018
$3.6M
Epithelial Cell Sensing and Responses to P. gingivalisK08DE014168 · NIDCR · UNIVERSITY OF WASHINGTON · PI YILMAZ, OZLEM · 2001 to 2005
$630k
NIDCR NIH HHS DE 11111NIDCR NIH HHS DE 14168NIDCR NIH HHS K08 DE014168NIDCR NIH HHS R01 DE011111NIDCR NIH HHS R37 DE011111
6 · The paper itself

Abstract

Porphyromonas gingivalis, one of the causative agents of adult periodontitis, can invade and survive within host epithelial cells. The molecular mechanisms by which P. gingivalis induces uptake and adapts to an intracellular environment are not fully understood. In this study, we have investigated the genetic responses of P. gingivalis internalized within human gingival epithelial cells (GECs) in order to identify factors involved in invasion and survival. We compared the differential display of arbitrarily PCR-amplified gene transcripts in P. gingivalis recovered from GECs with the display of transcripts in P. gingivalis control cultures. Over 20 potential differentially expressed transcripts were identified. Among these, pepO, encoding an endopeptidase, and genes encoding an ATP-binding cassette (ABC) transporter and a cation-transporting ATPase were upregulated in GECs. To investigate the functionality of these gene products, mutants were generated by insertional inactivation. Compared to the parental strain, mutants of each gene showed a significant reduction in their invasion capabilities. In addition, GEC cytoskeletal responses to the mutants were distinct from those induced by the parent. In contrast, adhesion of the mutant strains to GECs was not affected by lack of expression of the gene products. These results suggest that PepO, a cation-transporting ATPase, and an ABC transporter are required for the intracellular lifestyle of P. gingivalis.

Indexed as

Gene Expression Regulation, BacterialBacterial AdhesionBacteroidaceae InfectionsEpithelial CellsGene Expression ProfilingGingivaHumansMutationPorphyromonas gingivalisReverse Transcriptase Polymerase Chain Reaction

Identifiers

PMID15213115
PMCPMC427446
OpenAlexW1967575010

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.