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Tan J, Lamont GJ, Sekula M, Hong H, Sloan L, Scott DA. The transcriptomic response to cannabidiol of Treponema denticola, a phytocannabinoid-resistant periodontal pathogen. J Clin Periodontol 2024; 51:222-232. [PMID: 38105008 DOI: 10.1111/jcpe.13892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/14/2023] [Accepted: 09/26/2023] [Indexed: 12/19/2023]
Abstract
AIM The use of cannabis, which contains multiple antimicrobials, may be a risk factor for periodontitis. We hypothesized that multiple oral spirochetes would be phytocannabinoid-resistant and that cannabidiol (CBD) would act as an environmental stressor to which Treponema denticola would respond transcriptionally, thereby providing first insights into spirochetal survival strategies. MATERIALS AND METHODS Oral spirochete growth was monitored spectrophotometrically in the presence and absence of physiologically relevant phytocannabinoid doses, the transcriptional response to phytocannabinoid exposure determined by RNAseq, specific gene activity fluxes verified using qRT-PCR and orthologues among fully sequenced oral spirochetes identified. RESULTS Multiple strains of oral treponemes were resistant to CBD (0.1-10 μg/mL), while T. denticola ATCC 35405 was resistant to all phytocannabinoids tested (CBD, cannabinol [CBN], tetrahydrocannabinol [THC]). A total of 392 T. denticola ATCC 35405 genes were found to be CBD-responsive by RNAseq. A selected subset of these genes was independently verified by qRT-PCR. Genes found to be differentially activated by both methods included several involved in transcriptional regulation and toxin control. Suppressed genes included several involved in chemotaxis and proteolysis. CONCLUSIONS Oral spirochetes, unlike some other periodontal bacteria, are resistant to physiological doses of phytocannabinoids. Investigation of CBD-induced transcriptomic changes provided insight into the resistance mechanisms of this important periodontal pathogen. These findings should be considered in the context of the reported enhanced susceptibility to periodontitis in cannabis users.
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Affiliation(s)
- Jinlian Tan
- Department of Oral Immunology and Infectious Diseases, University of Louisville, Louisville, Kentucky, USA
| | - Gwyneth J Lamont
- Department of Oral Immunology and Infectious Diseases, University of Louisville, Louisville, Kentucky, USA
| | - Michael Sekula
- Department of Oral Immunology and Infectious Diseases, University of Louisville, Louisville, Kentucky, USA
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, Kentucky, USA
| | - HeeJue Hong
- Department of Oral Immunology and Infectious Diseases, University of Louisville, Louisville, Kentucky, USA
| | - Lucy Sloan
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, Kentucky, USA
| | - David A Scott
- Department of Oral Immunology and Infectious Diseases, University of Louisville, Louisville, Kentucky, USA
- Center for Microbiomics, Inflammation and Pathogenicity, University of Louisville, Louisville, Kentucky, USA
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Sorsa T, Nwhator SO, Sakellari D, Grigoriadis A, Umeizudike KA, Brandt E, Keskin M, Tervahartiala T, Pärnänen P, Gupta S, Mohindra R, Bostanci N, Buduneli N, Räisänen IT. aMMP-8 Oral Fluid PoC Test in Relation to Oral and Systemic Diseases. FRONTIERS IN ORAL HEALTH 2022; 3:897115. [PMID: 35757444 PMCID: PMC9226345 DOI: 10.3389/froh.2022.897115] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/04/2022] [Indexed: 12/24/2022] Open
Abstract
The manuscript uses the previously published literature and highlights the benefits of active-matrix metalloproteinase (aMMP)-8 chairside/point-of-care (PoC) diagnostic tools as adjunctive measures in oral and systemic diseases. Previous studies suggest that as a biomarker, aMMP-8 is more precise than total MMP-8, MMP-9, MMP-2, MMP-3, MMP-13, MMP-7, MMP-1, calprotectin, myeloperoxidase (MPO), human neutrophil elastase (HNE), tissue inhibitor of matrix metalloproteinase (TIMP)-1, and bleeding of probing (BOP). Therefore, aMMP-8 could be implemented as the needed key biomarker for the new disease classification for both periodontitis and peri-implantitis. With a sensitivity to the tune of 75–85% and specificity in the range of 80–90%, lateral flow aMMP-8 PoC testing is comparable to catalytic protease activity assays for aMMP-8. The test can be further applied to estimate the glycemic status of an individual, to ascertain whether a person is at risk for COVID-19, in managing the oral side effects of radiotherapy carried in head and neck cancers, and in selected cases pertaining to reproductive health. In the future, aMMP-8 could find application as a potential systemic biomarker in diseases affecting the cardiovascular system, cancers, bacteremia, sepsis, diabetes, obesity, meningitis, as well as pancreatitis. The aMMP-8 PoCT is the first practical test in the emerging new dental clinical field, that is, oral clinical chemistry representing oral medicine, clinical chemistry, peri-implantology, and periodontology.
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Affiliation(s)
- Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Section of Oral Health and Periodontology, Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Solna, Sweden
| | | | - Dimitra Sakellari
- Department of Preventive Dentistry, Periodontology and Implant Biology, Dental School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Andreas Grigoriadis
- Department of Preventive Dentistry, Periodontology and Implant Biology, Dental School, Aristotle University of Thessaloniki, Thessaloniki, Greece
- 424 General Army Hospital, Thessaloniki, Greece
| | - Kehinde Adesola Umeizudike
- Department of Preventive Dentistry, Faculty of Dental Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Ella Brandt
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Mutlu Keskin
- Oral and Dental Health Department, Altinbaş University, Istanbul, Turkey
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pirjo Pärnänen
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Shipra Gupta
- Oral Health Sciences Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ritin Mohindra
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Nagihan Bostanci
- Section of Oral Health and Periodontology, Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Solna, Sweden
| | - Nurcan Buduneli
- Department of Periodontology, Faculty of Dentistry, Ege University, Izmir, Turkey
| | - Ismo Tapani Räisänen
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- *Correspondence: Ismo Tapani Räisänen
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