Abstract
Aim: To analyze subgingival fungal diversity in peri-implant inflammation patients and their relationship with bacteria. Methods: We collected saliva samples from four groups. 16sRNA and internal transcribed spacer sequencing was performed preceded by quantitative PCR and enzyme-linked immunosorbent assay tests. Analyses were done using R and Cytoscape software. Results: Significant differences were observed in the Abundance-based Coverage Estimator (ACE) index between control and peri-implantitis samples. Basidiomycota was the dominant fungal species, while Firmicutes dominated the bacteria. The most abundant fungal and bacterial species were ‘s_unclassified g Apiotrichum’ and ‘s_unclassified g Streptococcus’, respectively. Dothiorella was strongly associated with immunoglobulin G levels, with positive correlations between specific microorganisms and peri-implantitis in Q-PCR. Conclusion: Our findings have significant clinical implications, suggesting specific fungal and bacterial taxa roles in peri-implant inflammation.
Papers of special note have been highlighted as: • of interest
References
- 1. . Peri-implantitis. J. Periodontol. 89(Suppl. 1), S267–S290 (2018).
- 2. . Management of peri-implantitis. Dental Res J. 9(5), 516 (2012).
- 3. Microbial differences between active and remission peri-implantitis. Sci. Rep. 12(1), 5284 (2022).
- 4. Analysis of bacterial flora associated with peri-implantitis using obligate anaerobic culture technique and 16S rDNA gene sequence. Int. J. Oral Maxillofac. Implant. 28(6), 1521–1529 (2013). • Focuses on bacterial flora in peri-implantitis.
- 5. A systematic review on the implication of Candida in peri-implantitis. Int. J. Implant. Dentistry 7(1), 1–9 (2021).
- 6. . Contribution of fungi and viruses towards the etiopathogenesis peri-implantitis: a literature review of currently available evidence. Surg. Pract. Sci. 2, 100017 (2020). • Examines how fungi and viruses affect the etiopathogenesis of peri-implantitis.
- 7. Real-time PCR analysis of fungal organisms and bacterial species at peri-implantitis sites. Int. J. Implant. Dentistry 1(1), 1–7 (2015). • Significant study on PCR fungal analysis.
- 8. The microbiome: the trillions of microorganisms that maintain health and cause disease in humans and companion animals. Veterinary Pathol. 53(1), 10–21 (2016).
- 9. . Mycobiome in health and disease. In: Antifungal Therapy (2nd Edition). CRC Press, 503–515 (2019).
- 10. Oral bacterial diversity is inversely correlated with mucosal inflammation. Oral Dis. 26(7), 1566–1575 (2020). • Analyzes bacterial inflammation in the mucosa.
- 11. Effects of glycerol on the growth, adhesion, and cellulolytic activity of rumen cellulolytic bacteria and anaerobic fungi. Curr. Microbiol. 25, 197–201 (1992).
- 12. Identification of microbiota in peri-implantitis pockets by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Sci. Rep. 9(1), 1–9 (2019).
- 13. . Smoking and microbiome in oral, airway, gut and some systemic diseases. J. Transat. Med. 17(1), 1–5 (2019).
- 14. . Oral fungal-bacterial biofilm models in vitro: a review. Med. Mycol. 56(6), 653–667 (2018). • Analyses formation of fungal biofilms in the oral microbiome.
- 15. . Dental anatomy and physiology of human tooth and the consequences of pathogenic microbiota on the oral cavity. J. Clin. Case Studies Rev. Rep. 147, 3 (2020).
- 16. Microbiological profile and human immune response associated with peri-implantitis: a systematic review. J. Prosthodontics 30(3), 210–234 (2021).
- 17. Preliminary analysis of salivary microbiome and their potential roles in oral lichen planus. Sci. Rep. 6(1), 22943 (2016).
- 18. Point prevalence, microbiologv and antifungal susceptibility patterns of oral Candida isolates colonizing or infecting Mexican HIV/AIDS patients and healthy persons. Revista Iberoamericana deMicología 22(2), 83 (2005).
- 19. . The battle for oxygen during bacterial and fungal infections. Trends in Microbiol. 30(7), 643–653 (2022).
- 20. Adhesive protein-mediated cross-talk between Candida albicans and Porphyromonas gingivalis in dual-species biofilm protects the anaerobic bacterium in unfavorable toxic environment. Sci. Rep. 9(1), 4376 (2019). • Analysis of colonies associated with Candida albicans and Porphyromonas gingivalis.
- 21. Candida albicans enhances initial biofilm growth of Cutibacterium acnes under aerobic conditions. Biofouling 35(3), 350–360 (2019).
- 22. Fungal biofilm architecture produces hypoxic microenvironments that drive antifungal resistance. Proc. Natl Acad. Sci. USA 117(36), 22473–22483 (2020).
- 23. . Interplay between Candida albicans and lactic acid bacteria in the gastrointestinal tract: impact on colonization resistance, microbial carriage, opportunistic infection, and host immunity. Clin. Microbiol. Rev. 34(4), e00323–e00420 (2021).
- 24. A novel genetic circuitry governing hypoxic metabolic flexibility, commensalism, and virulence in the fungal pathogen Candida albicans. PLOS Pathog. 15(12), e1007823 (2019). • Discusses the virulence of C. albicans, a key pathogen in peri-implantitis.
- 25. Carbon source-induced reprogramming of the cell wall proteome and secretome modulates the adherence and drug resistance of the fungal pathogen Candida albicans. Proteomics 12(21), 3164–3179 (2012).
- 26. . Surface polysaccharides enable bacteria to evade plant immunity. Trends Microbiol. 12(12), 555–561 (2004).
- 27. Hijacking of immune defenses by biofilms: a multifront strategy. Biofouling 35(10), 1055–1074 (2019).
- 28. Synthesis, characterization, and biomedical application of silver nanoparticles. Materials 15(2), 427 (2022).
- 29. Myeloid progenitors protect against invasive aspergillosis and Pseudomonas aeruginosa infection following hematopoietic stem cell transplantation. Blood 100(13), 4660–4667 (2002).
- 30. Mini-review: from in vitro to ex vivo studies: an overview of alternative methods for the study of medical biofilms. Biofouling 36(9), 1129–1148 (2020).
- 31. Polymicrobial biofilms: Impact on fungal pathogenesis. Understanding Microbial Biofilms 521–567 (2023).
- 32. Salivary mycobiome dysbiosis and its potential impact on bacteriome shifts and host immunity in oral lichen planus. Int. J. Oral Sci. 11(2), 13 (2019). • Examination of oral lichen planus and dysbiosis of the salivary microbiome that is closely associated with peri-implantitis.
- 33. Peri-implantitis. J. Clin. Periodontol. 45, S246–S266 (2018).
- 34. The multilayer nature of ecological networks. Nature Ecol. Evol. 1(4), 0101 (2017).
- 35. . Immunity boosting nutraceuticals: current trends and challenges. J. Food Biochem. 46(3), e13902 (2022).
- 36. Impact of dental plaque biofilms in periodontal disease: management and future therapy. In: Periodontitis: A Useful Reference. Arjunan P (Ed.). In Tech Open, London, UK, 11–42 (2017).
- 37. Alterations in gut bacterial and fungal microbiomes are associated with bacterial keratitis, an inflammatory disease of the human eye. J. Biosci. 43, 835–856 (2018).
- 38. Salivary mycobiome dysbiosis and its potential impact on bacteriome shifts and host immunity in oral lichen planus. Int. J. Oral Sci. 11(2), 13 (2019).
- 39. Mycobiota in gastrointestinal diseases. Nat. Rev. Gastroenterol. Hepatol. 12(2), 77–87 (2015).