Porphyromonas gingivalis diffusible signaling molecules enhance Fusobacterium nucleatum biofilm formation via gene expression modulation

被引:3
|
作者
Yamaguchi-Kuroda, Yukiko [1 ]
Kikuchi, Yuichiro [2 ]
Kokubu, Eitoyo [2 ]
Ishihara, Kazuyuki [2 ]
机构
[1] Tokyo Dent Coll, Dept Endodont, 2 9 18 Kanda Misakicho,Chiyoda ku, Tokyo 1010061, Japan
[2] Tokyo Dent Coll, Dept Microbiol, 2 1 14 Kanda Misakicho,Chiyoda ku, Tokyo 1010061, Japan
关键词
Synergy; biofilm; periodontal disease; Fap2; Porphyromonas gingivalis; Fusobacterium nucleatum; LIPOPOLYSACCHARIDE CORE; COAGGREGATION; PERIODONTITIS; GALU; MODEL; PATHOGENICITY; MICROBIOME; METABOLISM; SYNERGY; ADHESIN;
D O I
10.1080/20002297.2023.2165001
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Background Periodontitis is caused by a dysbiotic shift in the dental plaque microbiome. Fusobacterium nucleatum is involved in the colonization of Porphyromonas gingivalis, which plays a key role in dysbiosis, via coaggregation and synergy with this microorganism. Aim We investigated the effect of diffusible signaling molecules from P. gingivalis ATCC 33277 on F. nucleatum TDC 100 to elucidate the synergistic mechanisms involved in dysbiosis. Methods The two species were cocultured separated with an 0.4-mu m membrane in tryptic soy broth, and F. nucleatum gene expression profiles in coculture with P. gingivalis were compared with those in monoculture. Results RNA sequencing revealed 139 genes differentially expressed between the coculture and monoculture. The expression of 52 genes was upregulated, including the coaggregation ligand-coding gene. Eighty-seven genes were downregulated. Gene Ontology analysis indicated enrichment for the glycogen synthesis pathway and a decrease in de novo synthesis of purine and pyrimidine. Conclusion These results indicate that diffusible signaling molecules from P. gingivalis induce metabolic changes in F. nucleatum, including an increase in polysaccharide synthesis and reduction in de novo synthesis of purine and pyrimidine. The metabolic changes may accelerate biofilm formation by F. nucleatum with P. gingivalis. Further, the alterations may represent potential therapeutic targets for preventing dysbiosis.
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页数:12
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