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Porphyromonas gingivalis triggers microglia activation and neurodegenerative processes through NOX4

ABSTRACT: Porphyromonas gingivalis triggers microglia activation and neurodegenerative processes through NOX4

PROVIDER: PRJNA1147160 | ENA |

REPOSITORIES: ENA

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Porphyromonas gingivalis triggers microglia activation and neurodegenerative processes through NOX4

Project description:Periodontitis and infections with periodontal bacteria have been highlighted as risk factors for dementia. In recent years attention has been drawn to the role of microglia cells in neurodegenerative diseases. However, there is limited knowledge of the influence of periodontal bacteria on microglia cells. The aim of the present study was to investigate the interactions between the periodontal bacteria P. gingivalis and microglia cells, and to unravel if these interactions could contribute to Alzheimer’s pathology. Periodontitis and infections with periodontal bacteria have been highlighted as risk factors for dementia. In recent years attention has been drawn to the role of microglia cells in neurodegenerative diseases. However, there is limited knowledge of the influence of periodontal bacteria on microglia cells. The aim of the present study was to investigate the interactions between the periodontal bacteria P. gingivalis and microglia cells, and to unravel if these interactions could contribute to Alzheimer’s pathology. We found, through microarray analysis, that stimulation of microglia cells with P. gingivalis resulted in upregulation of several Alzheimer´s disease associated genes, including NOX4. We also showed that P. gingivalis LPS mediated ROS production and IL-6 and IL-8 induction via NOX4 in microglia. The viability of neurons was shown to be reduced by conditioned media from microglia cells stimulated with P. gingivalis LPS, and that the reduction was NOX4 dependent. The levels of total and phosphorylated Tau in neurons were increased by conditioned media from microglia cells stimulated with P. gingivalis or LPS. This increase was NOX4 dependent. In summary our findings give us a potential mechanistic explanation of how the periodontal pathogen P. gingivalis could trigger or exacerbate AD pathogenesis.

2024-10-18 | GSE274532 | GEO

Role of PG1626 in Porphyromonas gingivalis ATCC33277

Project description:Wild type Porphyromonas gingivalis strain ATCC33277 (V3176) and PG1626 - deficient mutant (V3177) were grown in iron replete conditions was used to compare to Porphyromonas gingivalis strains grown in iron chelated conditions.

2023-06-08 | GSE174493 | GEO

Porphyromonas gingivalis gene expression during co-culture with Treponema denticola

Project description:Porphyromonas gingivalis and Treponema denticola are periodontalpathogens that are associated with the severity and progression of periodontal diseases. This study investigates the gene expression of Porphyromonas gingivalis during co-culture with Treponema denticola

2014-03-31 | E-MTAB-2214 | biostudies-arrayexpress

Treponema denticola gene expression during co-culture with Porphyromonas gingivalis

Project description:Porphyromonas gingivalis and Treponema denticola are periodontalpathogens that are associated with the severity and progression of periodontal diseases. this study investigates the gene expression of Treponema denticola during co-culture with Porphyromonas gingivalis.

2014-03-31 | E-MTAB-2257 | biostudies-arrayexpress

Role of RNA-binding protein, Pgr, in Porphyromonas gingivalis

Project description:Role of RNA-binding protein, Pgr, in Porphyromonas gingivalis.

2022-10-08 | GSE168570 | GEO

Pathogenesis research of tumorigenesis and progression of colorectal cancer modulated by gingipains secreted by Porphyromonas gingivalis

Project description:Primary outcome(s): Abundance of Porphyromonas gingivalis (Pg) in samples Study Design: Case-Control study

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Characterization of a bacterial tyrosine kinase in Porphyromonas gingivalis involved in polymicrobial synergy

Project description:RNA-Seq of wild-type Porphyromonas gingivalis compared to ΔPGN_1524 mutant Illumina based RNA-Seq was used to probe transcriptome differences between wild-type Porphyromonas gingivalis and ΔPGN_1524 mutant

2014-07-19 | E-GEOD-55192 | biostudies-arrayexpress

Porphyromonas gingivalis Microbiota

Project description:Porphyromonas gingivalis Microbiota Metagenome

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