Periodontitis, pathogenesis and progression: miRNA-mediated cellular responses to Porphyromonas gingivalis

Area of Science:

• Oral microbiology
• Immunology
• Molecular biology

Background:

• Porphyromonas gingivalis is a keystone pathogen in periodontitis.
• Periodontitis involves dysbiosis and inflammation driven by oral pathobionts.
• MicroRNAs (miRNAs) are key regulators of the host's innate immune response.

Purpose of the Study:

• To review the role of miRNAs in periodontitis pathogenesis initiated by P. gingivalis.
• To explore the diagnostic and therapeutic potential of miRNA profiles in periodontitis.
• To discuss miRNA-dependent regulatory mechanisms in P. gingivalis-induced inflammation.

Main Methods:

• Literature review of studies on P. gingivalis and miRNA expression.
• Analysis of miRNA profiles in diseased versus healthy oral tissues.
• Discussion of the regulatory roles of specific miRNAs (e.g., miRNA-128, miRNA-146, miRNA-203, miRNA-584) in innate immunity.

Main Results:

• miRNA profiles differ significantly between periodontitis-affected and healthy sites.
• Specific miRNAs are implicated in the regulation of the innate immune response to P. gingivalis.
• P. gingivalis lipopolysaccharide may alter host miRNA expression and target mRNAs.

Conclusions:

• miRNA signatures hold promise as diagnostic and prognostic biomarkers for periodontitis.
• Targeting specific miRNAs could offer novel therapeutic strategies for periodontitis.
• Understanding miRNA-host interactions is crucial for managing P. gingivalis-associated oral inflammation.