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Updated: Aug 15, 2026
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Induction of Periodontitis via a Combination of Ligature and Lipopolysaccharide Injection in a Rat Model
Published on: February 17, 2023
[Preliminary study on anti-periodontitis immunization with DNA vaccine]
Feng-qiu Zhang1, Lian-jia Yang, Zhi-fen Wu
1Department of Periodontology, Peking University School of Stomatology, Beijing 100081, China.
Summary
This study shows that the DNA gene vaccine pcDNA3.1+/kgpcd effectively protects against periodontal bone loss in rats. It stimulates a significant immune response against Porphyromonas gingivalis, preventing tissue damage.
Area of Science:
- Oral microbiology
- Immunology
- Vaccine development
Context:
- Periodontitis is a significant oral disease caused by bacteria like Porphyromonas gingivalis.
- Current treatments for periodontitis have limitations.
- Developing effective vaccines is crucial for preventing and treating periodontal disease.
Purpose:
- To evaluate the protective efficacy of the recombinant plasmid pcDNA3.1+/kgpcd as a DNA gene vaccine against periodontal bone loss.
- To assess the immune response induced by the DNA vaccine in a rat model of periodontitis.
Summary:
- The study utilized a Sprague-Dawley (SD) rat periodontitis model.
- The DNA gene vaccine pcDNA3.1+/kgpcd was administered via submandibular gland-targeted injection.
- Salivary anti-KGPcd sIgA levels were significantly elevated in the experimental group compared to controls.
- Immunohistochemistry confirmed that the vaccine protected against P. gingivalis-induced tissue destruction.
Impact:
- The findings suggest that pcDNA3.1+/kgpcd is a promising candidate for an anti-periodontitis gene vaccine.
- This vaccine strategy could offer a novel approach to prevent and treat Porphyromonas gingivalis-induced periodontitis.
