CD133 EXPRESSION COULD BE A PREDICTIVE MARKER OF PERIODONTAL REGENERATION

Area of Science:

• Periodontology
• Regenerative Medicine
• Biomarker Discovery

Background:

• Periodontal regeneration requires new connective tissue formation, including periodontal fiber development and angiogenesis.
• CD133 (prominin-1) is a key regulator of apoptosis, proliferation, and angiogenesis, with its expression potentially affected by periodontal inflammation.
• Demineralized Freeze-Dried Bone Allografts (DFDBA) have shown varied outcomes in treating periodontal intrabony defects.

Purpose of the Study:

• To investigate the relationship between pre-treatment gingival CD133 expression and periodontal tissue response 12 months post-surgery.
• To assess CD133 as a potential predictive marker for periodontal healing.
• To explore the link between native gingival regenerative capacity and clinical attachment level gain.

Main Methods:

• Fifty-six patients with intrabony defects (CAL ≥ 6 mm) requiring regeneration were selected.
• Gingival biopsies were obtained for CD133 immunostaining prior to periodontal treatment.
• Clinical and radiographic parameters were assessed at baseline and 12 months post-surgery.

Main Results:

• A positive correlation was found between gingival CD133 expression and clinical attachment level (CAL) gain at 12 months post-surgery.
• DFDBA treatment outcomes were analyzed in relation to CD133 expression levels.
• The study identified a link between CD133 expression and the effectiveness of periodontal regeneration.

Conclusions:

• Gingival CD133 expression may serve as a predictive biomarker for favorable periodontal healing.
• The degree of CAL gain following periodontal regeneration appears associated with the patient's intrinsic gingival regenerative capacity.
• CD133 warrants further investigation as a prognostic indicator in periodontal regenerative therapies.