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Porphyromonas gingivalis as a Model Organism for Assessing Interaction of Anaerobic Bacteria with Host Cells
12:16

Porphyromonas gingivalis as a Model Organism for Assessing Interaction of Anaerobic Bacteria with Host Cells

Published on: December 17, 2015

Fusobacterium nucleatum impairs serum binding to Porphyromonas gingivalis biofilm

J-I Choi1, U-S Kim, S-J Kim

  • 1Department of Periodontology and Research Center for Periodontal Disease, School of Dentistry, Pusan National University, Pusan, Korea. jilchoi@pusan.ac.kr

Oral Microbiology and Immunology
|March 26, 2003
PubMed

Insights

Sequential immunization with Fusobacterium nucleatum and Porphyromonas gingivalis impairs antibody binding to P. gingivalis biofilms. This suggests a specific immune response is crucial for effective P. gingivalis avidity.

Area of Science:

  • Microbiology
  • Immunology
  • Oral Health

Background:

  • Porphyromonas gingivalis is a key pathogen in periodontitis.
  • Understanding immune responses to P. gingivalis is critical for developing effective treatments.

Purpose of the Study:

  • To investigate the impact of sequential immunization with Fusobacterium nucleatum and P. gingivalis on the immune response against P. gingivalis.

Main Methods:

  • Mice were immunized sequentially with F. nucleatum and P. gingivalis.
  • Immune sera were tested for binding capacity to P. gingivalis biofilms.
  • Antibody avidity to P. gingivalis was assessed.

Main Results:

  • Sera from sequentially immunized mice showed reduced binding to P. gingivalis biofilms compared to controls.
  • Lower antibody avidity to P. gingivalis was observed in the sequential immunization group.
  • Immunization with P. gingivalis alone resulted in a stronger immune response.

Conclusions:

  • Sequential immunization with F. nucleatum and P. gingivalis can impair the development of a robust immune response against P. gingivalis.
  • The order of immunization impacts antibody efficacy and avidity.
  • This finding has implications for vaccine development and understanding polymicrobial infections.

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