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Updated: Sep 20, 2025

Organotypic Tissue Model Systems for Investigating Host-Pathogen Interactions In Vitro
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Comparative Analysis of Gene Expression Patterns for Oral Epithelial Cell Functions in Periodontitis.

Octavio A Gonzalez1,2, Sreenatha Kirakodu1, Linh M Nguyen3

  • 1Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, United States.

Frontiers in Oral Health
|June 9, 2022
PubMed
Summary

Epithelial cell functions in rhesus monkeys rapidly change with periodontitis initiation, disrupting normal cellular processes. These alterations persist, indicating a continued risk for disease even after clinical resolution.

Keywords:
agingepitheliumgingival transcriptomenon-human primateperiodontitis

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Area of Science:

  • Oral biology
  • Immunology
  • Genomics

Background:

  • Epithelial cells form critical barriers and actively participate in immune responses.
  • Understanding epithelial cell function is key to managing inflammatory diseases like periodontitis.

Purpose of the Study:

  • To investigate alterations in gingival epithelial cell structure and function during periodontitis in rhesus monkeys.
  • To explore gene expression changes related to epithelial cell functions in naturally occurring and ligature-induced periodontitis.

Main Methods:

  • Microarray analysis of gingival tissue from rhesus monkeys with naturally occurring or ligature-induced periodontitis.
  • Comparison of gene expression profiles across different age groups (young, adolescent, adult, aged).

Main Results:

  • Significant alterations in epithelial cell functions were observed rapidly upon disease initiation.
  • Many functional changes persisted throughout disease progression, reflecting disrupted cellular processes.
  • Age did not appear to be a primary factor in the observed transcriptomic changes.

Conclusions:

  • Periodontitis causes rapid and sustained changes in gingival epithelial cell function.
  • Clinical resolution of periodontitis may not equate to full biological recovery, posing a risk for recurrence.
  • Further research into biologically specific interventions is needed for effective disease management.