Evidence map›Paper›PMID 40011497›Full record

ArticleNPJ biofilms and microbiomes2025

Regulation of tryptophan-indole metabolic pathway in Porphyromonas gingivalis virulence and microbiota dysbiosis in periodontitis.

Jing Ding, Lingping Tan, Lingzhi Wu, Jinyu Li, Yong Zhang, Zongshan Shen, Chi Zhang, Chuanjiang Zhao, Li Gao

Abstract read
In one paragraph

Article in NPJ biofilms and microbiomes, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Review
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  17. Differential Gene Expression ofInternational journal of molecular sciences · 2025
    Article
  18. Review
  19. Cancers · 2025
    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

9 authors.

Jing Ding *Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
Lingping Tan *Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
Lingzhi Wu *Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
Jinyu LiHospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
Yong ZhangHospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
Zongshan ShenHospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
Chi ZhangHospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
Chuanjiang ZhaoHospital of Stomatology, Sun Yat-sen University, Guangzhou, China. zhaochj@mail.sysu.edu.cn.
Li GaoHospital of Stomatology, Sun Yat-sen University, Guangzhou, China. gaol7@mail.sysu.edu.cn.

Funding

National Natural Science Foundation of China 82170959Natural Science Foundation of Guangdong Province 2022A1515010855
6 · The paper itself

Abstract

Pathogenesis of periodontitis is marked by microbiota dysbiosis and disrupted host responses. Porphyromonas gingivalis is a keystone pathogen of periodontitis which expresses various crucial virulence factors. This study aimed to clarify the role and mechanisms of P. gingivalis tryptophan-indole metabolic pathway in the pathogenesis of periodontitis. This study showed that periodontitis patients exhibited elevated tryptophan metabolism and salivary pathogen abundance. Tryptophanase gene-deficiency altered proteome and metabolome of P. gingivalis, inhibited P. gingivalis virulent factors expression, biofilm growth, hemin utilization, cell adhesion/invasion and pro-inflammation ability. Tryptophan-indole pathway of P. gingivalis stimulated periodontitis biofilm formation and induced oral microbiota dysbiosis. In periodontitis mice, this pathway of P. gingivalis aggravated alveolar bone loss and gingival tissue destruction, causing oral and gut microbiota dysbiosis. This study indicates that the tryptophan-indole pathway serves as a significant regulator of P. gingivalis virulence and oral microbiota dysbiosis, which is also associated with gut dysbiosis.

Indexed as

DysbiosisIndolesPeriodontitisPorphyromonas gingivalisTryptophanAnimalsBacteroidaceae InfectionsBiofilmsDisease Models, AnimalFemaleHumansMaleMetabolic Networks and PathwaysMiceTryptophanaseVirulenceindoleIndolesTryptophanTryptophanaseVirulence Factors

Identifiers

PMID40011497
PMCPMC11865485

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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.