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Related Experiment Video

Updated: Sep 16, 2025

Robust Ligature-Induced Model of Murine Periodontitis for the Evaluation of Oral Neutrophils
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Genetic Susceptibility to Periodontitis.

Gesa M Richter1, Arne S Schaefer1

  • 1Department of Periodontology, Oral Medicine and Oral Surgery, Institute for Dental and Craniofacial Sciences, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany.

Journal of Periodontal Research
|July 11, 2025
PubMed
Summary

Genetic variants significantly increase periodontitis risk, primarily impacting immune response and tissue integrity. Understanding these genetic factors is crucial for developing new diagnostic and treatment strategies for this common inflammatory oral disease.

Keywords:
PLGSIGLEC5barrier tissuegenetic susceptibilityhomeostasisimmune responsewound healing

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Area of Science:

  • Genetics and Oral Health
  • Immunology
  • Molecular Biology

Background:

  • Periodontitis is a prevalent inflammatory oral disease with significant heritability.
  • Severe, early-onset periodontitis suggests a strong genetic influence.
  • Genetic research offers insights into disease mechanisms and potential therapeutic targets.

Purpose of the Study:

  • To identify and validate genetic risk factors for periodontitis.
  • To understand the biological functions associated with periodontitis susceptibility genes.
  • To refine diagnostic and treatment strategies based on genetic insights.

Main Methods:

  • Screening of single-nucleotide variants (SNVs) from genetic association studies.
  • Application of stringent statistical significance (p ≤ 5 × 10⁻⁸) and replication criteria.
  • Inclusion of common and rare variants (MAF ≥ 1% and MAF ≤ 0.001) from genome-wide and whole-exome sequencing studies.

Main Results:

  • Identified genetic risk loci primarily linked to immune response and tissue integrity/regeneration.
  • Highlighted genes involved in neutrophil activity, antimicrobial defense, immune mediation, wound healing, and extracellular matrix remodeling.
  • Noted specific gene interactions (e.g., SIGLEC5, PLG, PPBP/PF4) at the immune function and tissue repair interface.

Conclusions:

  • The interplay between immune response and tissue homeostasis is critical in periodontitis etiology.
  • Identified genetic risk factors provide a foundation for improved diagnostic and therapeutic approaches.
  • Further large-scale genetic and functional studies are needed to fully elucidate genetic contributions and identify therapeutic targets.