Lab Anim Res.  2019 Dec;35(4):187-193. 10.1186/s42826-019-0029-6.

Implication of Porphyromonas gingivalis in colitis and homeostasis of intestinal epithelium

Affiliations
  • 1Department of Life Science in Dentistry, School of Dentistry, Pusan National University, Busandaehak-ro 49, Yangsan 50612, Republic of Korea. hskimcell@pusan.ac.kr
  • 2Dental and Life Science Institute, Pusan National University, Yangsan 50612, Republic of Korea.

Abstract

Emerging evidences have reported that periodontitis can be a risk factor for the pathogenesis of various systemic diseases. Porphyromonas gingivalis (Pg), one of the crucial pathogens in chronic periodontitis, has been spotlighted as a potential cause for the promotion and acceleration of periodontitis-associated systemic disorders. To investigate the association between Pg and intestinal disease or homeostasis, we treated Pg-derived lipopolysaccharide (LPS) in murine colitis model or intestinal organoid, respectively. Pg-derived LPS (Pg LPS) was administrated into chemically induced murine colitis model and disease symptoms were monitored compared with the infusion of LPS derived from E. coli (Ec LPS). Organoids isolated and cultured from mouse small intestine were treated with Pg or Ec LPS and further analyzed for the generation and composition of organoids. In vivo observations demonstrated that both Pg and Ec LPS exerted slight protective effects against murine colitis. Pg LPS did not affect the generation and growth of intestinal epithelial organoids. Among subtypes of epithelial cells, markers for stem cells, goblet cells or Paneth cells were changed in response to Pg LPS. Taken together, these results indicate that Pg LPS leads to partial improvement in colitis and that its treatment does not significantly affect the self-organization of intestinal organoids but may regulate the epithelial composition.

Keyword

Periodontitis; Porphyromonas gingivalis; Colitis; Intestinal epithelium; Organoid

MeSH Terms

Acceleration
Animals
Chronic Periodontitis
Colitis*
Epithelial Cells
Goblet Cells
Homeostasis*
Intestinal Diseases
Intestinal Mucosa*
Intestine, Small
Mice
Organoids
Paneth Cells
Periodontitis
Porphyromonas gingivalis*
Porphyromonas*
Risk Factors
Stem Cells
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