期刊
JOURNAL OF ORAL MICROBIOLOGY
卷 15, 期 1, 页码 -出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/20002297.2023.2184924
关键词
Enterococcus faecalis; macrophage; osteoblast; refractory apical periodontitis; virulence; regulated cell death; differentiation; polarisation
类别
Refractory apical periodontitis (RAP) is a persistent oral infectious disease that cannot be cured after repeated root canal therapies. The predominant pathogen involved in RAP is Enterococcus faecalis, which has evolved multiple strategies to cause persistent intraradicular and extraradicular infections. This article reviews the crucial role of E. faecalis in the pathogenesis of RAP and discusses potential prevention and treatment strategies.
Background: Refractory apical periodontitis (RAP) is an oral infectious disease characterised by persistent inflammation, progressive alveolar bone destruction, and delayed bone healing. RAP has received increasing attention, because it cannot be cured after repeated root canal therapies. The aetiology of RAP is related to the complex interplay between the pathogen and its host. However, the exact pathogenesis of RAP remains unclarified and includes several factors, such as microorganism immunogenicity, host immunity and inflammation, and tissue destruction and repair. Enterococcus faecalis is the dominant pathogen involved in RAP, and has evolved multiple strategies to ensure survival, which cause persistent intraradicular and extraradicular infections. Objective: To review the crucial role of E. faecalis in the pathogenesis of RAP, and open new avenues for prevention and treatment of RAP. Methods: The PubMed and Web of Science databases were searched for pertinent publications, employing the search terms Enterococcus faecalis, refractory apical periodontitis, persistent periapical periodontitis, pathogenicity, virulence, biofilm formation, dentine tubule, immune cell, macrophage, and osteoblast. Results and Conclusion: Besides its high pathogenicity due to various virulence mechanisms, E. faecalis modulates the macrophage and osteoblast responses, including regulated cell death, cell polarisation, cell differentiation, and inflammatory response. An in-depth understanding of the multifaceted host cell responses modulated by E. faecalis will help to design potential future therapeutic strategies and overcome the challenges of sustained infection and delayed tissue healing in RAP.
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