Roles of Pyroptosis in the Progression of Pulpitis and Apical Periodontitis

Area of Science:

• Oral Biology
• Immunology
• Cell Death Research

Background:

• Pyroptosis, a pro-inflammatory programmed cell death, is implicated in inflammatory diseases.
• Pulpitis and apical periodontitis cause alveolar bone loss and tooth loss.
• Emerging evidence links pyroptosis to the pathogenesis of these dental inflammatory conditions.

Purpose of the Study:

• To review the role of pyroptosis in different cell types during pulpitis and apical periodontitis.
• To explore pyroptosis as a potential diagnostic marker for pulpitis.
• To discuss therapeutic strategies targeting pyroptosis for dental inflammatory diseases.

Main Methods:

• Literature review of studies on pyroptosis in dental pulp cells and periodontal ligament fibroblasts.
• Analysis of inflammasome expression in dental pulp cells.
• Examination of pyroptosis in immune cells in response to infection and cellular secretomes.

Main Results:

• Odontoblast pyroptosis releases signals that trigger inner pulp immune responses.
• Inflammasome expression in dental pulp cells correlates with pulpitis progression.
• Periodontal ligament fibroblast pyroptosis is associated with infection and trauma-induced apical periodontitis.
• Immune cell pyroptosis is influenced by direct infection and cellular pyroptotic factors.

Conclusions:

• Pyroptosis plays a multifaceted role in the progression of pulpitis and apical periodontitis.
• Understanding cell-specific pyroptosis mechanisms can inform diagnostic approaches.
• Targeting pyroptosis presents a promising avenue for novel therapeutic interventions in dental inflammatory diseases.