To clarify the effects of smoking on periodontitis and identify potential treatment targets.
Approach:
Key Findings:
Smoking weakens the gum's epithelial barrier.
Epithelial cells in smokers show altered gene activity linked to protective layers, stress responses, and inflammation.
Fibroblasts in smokers exhibit higher activity in genes related to aging, cell death, and wound repair.
Increased immune cell presence, particularly plasma cells and macrophages, in smoking-related periodontitis.
CXCL12 levels are higher in smokers, with its blockade reducing macrophage inflammatory activity.
Interpretation:
Smoking accelerates periodontal disease by damaging epithelial barriers, altering fibroblast behavior, and enhancing inflammatory interactions, leading to tissue destruction and tooth loss.
Limitations:
Study sample size was small (n = 4 for each group).
Further research needed to validate findings in larger populations.
Conclusion:
CXCL12 may serve as a promising therapeutic target to mitigate smoking-related periodontitis.
