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Updated: Jun 28, 2026

Porphyromonas gingivalis as a Model Organism for Assessing Interaction of Anaerobic Bacteria with Host Cells
Published on: December 17, 2015
Surface components of Porphyromonas gingivalis.
F Yoshimura1, Y Murakami, K Nishikawa
1Department of Microbiology, School of Dentistry, Aichi-Gakuin University, Nagoya, Aichi, Japan. fuminobu@dpc.agu.ac.jp
Porphyromonas gingivalis surface proteins and fimbriae are key to its role in periodontal disease. Understanding these components is crucial for developing targeted therapies against this potent pathogen.
Area of Science:
- Microbiology
- Oral Health
- Bacterial Pathogenesis
Background:
- Porphyromonas gingivalis is a significant oral pathogen with extensive research.
- Its phylogenetic and proteomic characteristics are well-studied compared to related bacteria.
- Focus is on surface components, including outer membrane proteins and fimbriae.
Purpose of the Study:
- To review recent findings on Porphyromonas gingivalis surface components.
- To highlight the challenges in studying these components due to their unique properties.
- To discuss the role of these components in the pathogenesis of periodontal diseases.
Main Methods:
- Characterization of P. gingivalis outer membrane proteins, including OmpA-like proteins and RagAB.
- Investigation of FimA and Mfa1 fimbriae, unique appendages of P. gingivalis.
- Consideration of P. gingivalis's asaccharolytic and proteolytic nature during analysis.
Main Results:
- Successful separation and characterization of major outer membrane proteins like OmpA-like proteins and RagAB.
- Identification and brief description of FimA and Mfa1 fimbriae.
- Insights into the regulation of expression for these surface structures.
Conclusions:
- P. gingivalis surface components mediate interaction with host tissues and cells.
- These bacterial surface elements are critical factors in the development of periodontal diseases.
- Further research into these components could inform therapeutic strategies.
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