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Zhu P, Shao R, Xu P, Zhao R, Zhao C, Fei J, He Y. Streptococcus salivarius ameliorates the destructive effect on the epithelial barrier by inhibiting the growth of Prevotella melaninogenica via metabolic acid production. Mol Oral Microbiol 2024; 39:407-416. [PMID: 38686511 DOI: 10.1111/omi.12464] [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: 02/23/2024] [Revised: 03/26/2024] [Accepted: 04/09/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND Oral lichen planus (OLP) is one of the most common oral mucosal diseases, exhibiting a higher prevalence in women than men, but its pathogenesis is still unclear. Current research suggests that microbial dysbiosis may play an important role in the pathogenesis of OLP. Our previous research has found that the increase of Prevotella melaninogenica and decrease of Streptococcus salivarius have been identified as a potential pathogenic factor in OLP. Consequently, the objective of this study is to examine whether S. salivarius can counteract the detrimental effects of P. melaninogenica on the integrity of the epithelial barrier function. MATERIALS AND METHODS Epithelial barrier disruption was induced by P. melaninogenica in human keratinocytes (HaCaT cells). HaCaT cells were pretreated with S. salivarius(MOI = 20) or cell-free supernatant for 3 h, followed by treatment with P. melaninogenica (MOI = 5) for 3 h. The epithelial barrier integrity of HaCaT cells was detected by FD4 permeability. The mRNA level of tight junction protein was detected by quantitative real-time polymerase chain reaction (PCR). Immunofluorescence and Western Blot were used to detect the protein expression of zonula occludin-1 (ZO-1). The serial dilution-spotting assay was applied to monitor the viability of P. melaninogenica at the end of 8 and 24 h incubation. RESULTS Challenge by P. melaninogenica decreased the levels of tight junction proteins, including occludin, ZO-1, and claudin in HaCaT cells. S. salivarius or its cell-free supernatant inhibited the down-regulation of ZO-1 mRNA and protein expression levels induced by P. melaninogenica and thus improved the epithelial barrier function. The inhibitory effect of the cell-free supernatant of S. salivarius on the growth of P. melaninogenica is associated with metabolic acid production rather than with bacteriocins and hydrogen peroxide. CONCLUSIONS These results suggest that live S. salivarius or its cell-free supernatant significantly ameliorated the disruption of epithelial tight junctions induced by P. melaninogenica, likely through the inhibition of P. melaninogenica growth mediated by metabolic acid production.
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Affiliation(s)
- Pingyi Zhu
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Stomatological Hospital and Dental School of Tongji University, Shanghai, China
| | - Ruru Shao
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Stomatological Hospital and Dental School of Tongji University, Shanghai, China
| | - Pan Xu
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Stomatological Hospital and Dental School of Tongji University, Shanghai, China
| | - Ruowen Zhao
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Stomatological Hospital and Dental School of Tongji University, Shanghai, China
| | - Chen Zhao
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Stomatological Hospital and Dental School of Tongji University, Shanghai, China
| | - Jian Fei
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Yuan He
- Department of Oral Medicine, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Stomatological Hospital and Dental School of Tongji University, Shanghai, China
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Zhao C, Zhao R, Wu X, Tang K, Xu P, Chen X, Zhu P, He Y. Function of unconventional T cells in oral lichen planus revealed by single-cell RNA sequencing. Inflamm Res 2024; 73:1477-1492. [PMID: 39073597 DOI: 10.1007/s00011-024-01912-6] [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: 03/27/2024] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 07/30/2024] Open
Abstract
OBJECTIVE We intended to map the single-cell profile of OLP, explore the molecular characteristics of unconventional T cells in OLP tissues. METHODS Buccal mucosa samples from OLP patients and healthy individuals were used to prepare single-cell suspension. Single-cell RNA sequencing was used to analyze the proportion of all the cells, and the molecular characteristics of unconventional T cells. Immunohistochemical staining was used to detect the expression of unconventional T cells marker genes. RESULTS The cell clusters from buccal mucosa were categorized into immune cells, fibroblasts, endothelial cells, and epithelial cells. Unconventional T cells with phenotype of CD247+TRDC+NCAM1+ were identified. Immunohistochemical staining revealed higher expression of unconventional T cell marker genes in OLP tissue, predominantly in the lamina propria. In OLP, unconventional T cells are in a unique stress response state, exhibited enhanced NF-κB signaling and apoptosis inhibition, enhanced heat shock protein genes expression, weakened cytotoxic function. A large number of ligand-receptor pairs were found between unconventional T cells and other cells, particularly with fibroblasts and endothelial cells. CONCLUSIONS This study mapped the single-cell profile of OLP, delineated the molecular characteristics of unconventional T cells in OLP, and uncovered that these unconventional T cells are in a stress response state.
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Affiliation(s)
- Chen Zhao
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration & Tongji Research Institute of Stomatology & Department of Oral Medicine, School of Stomatology, Stomatological Hospital and Dental School, Tongji University, Shanghai, 200072, China
| | - Ruowen Zhao
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration & Tongji Research Institute of Stomatology & Department of Oral Medicine, School of Stomatology, Stomatological Hospital and Dental School, Tongji University, Shanghai, 200072, China
| | - Xinwen Wu
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Kailin Tang
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Pan Xu
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration & Tongji Research Institute of Stomatology & Department of Oral Medicine, School of Stomatology, Stomatological Hospital and Dental School, Tongji University, Shanghai, 200072, China
| | - Xin Chen
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration & Tongji Research Institute of Stomatology & Department of Oral Medicine, School of Stomatology, Stomatological Hospital and Dental School, Tongji University, Shanghai, 200072, China
| | - Pingyi Zhu
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration & Tongji Research Institute of Stomatology & Department of Oral Medicine, School of Stomatology, Stomatological Hospital and Dental School, Tongji University, Shanghai, 200072, China
| | - Yuan He
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration & Tongji Research Institute of Stomatology & Department of Oral Medicine, School of Stomatology, Stomatological Hospital and Dental School, Tongji University, Shanghai, 200072, China.
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Beibei L, Mengying W, Xiao H, Yuzi J, Lijin M, Ke Z, Shengjie Y, Li L. Dysbiosis and interactions of the mycobiome and bacteriome in mucosal lesions of erosive and non-erosive oral lichen planus patients. J Oral Microbiol 2024; 16:2374639. [PMID: 38979477 PMCID: PMC11229720 DOI: 10.1080/20002297.2024.2374639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 06/27/2024] [Indexed: 07/10/2024] Open
Abstract
Background Oral lichen planus (OLP) is a common oral mucosal disease, clinically categorized into erosive OLP (EOLP) and non-erosive OLP (NEOLP) based on symptoms, but its pathogenic mechanism remains unclear. This study aims to explore the relationship between OLP and the oral microbiome. Methods We collected oral mucosal samples from 49 patients and 10 healthy individuals and conducted 16S rRNA and ITS gene sequencing to explore the oral fungal and bacterial communities. Results We observed significantly lower α diversity of fungi in the EOLP group, with Candida being significantly enriched as the main dominant genus. In the NEOLP group, Aspergillaceae were significantly enriched. The EOLP group showed significant enrichment of Aggregatibacter and Lactobacillus, but the relative abundance of Streptococcus was notably lower than in the other two groups. In the NEOLP group, two species including Prevotella intermedia were significantly enriched. The microbial co-occurrence and co-exclusion networks display distinct characteristics across the three groups, with Lactobacillus assuming a significant bridging role in the ELOP group. Conclusions Our study indicates that EOLP and NEOLP experience varying degrees of dysbiosis at both the fungal and bacterial levels. Therefore, the pathogenic mechanisms and interactive relationships of these microbiota associated with OLP merit further in-depth investigation.
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Affiliation(s)
- Liang Beibei
- Hebei Key Laboratory of Stomatology, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Wei Mengying
- Department of Dental Pulp, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Huo Xiao
- Department of Oral Mucosa, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Jing Yuzi
- School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Mi Lijin
- Department of Oral Mucosa, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Zhang Ke
- Department of Oral Mucosa, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Yi Shengjie
- School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Liu Li
- Department of Oral Mucosa, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
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Jiang Q, Wang F, Zhou G. Keratinocytes stimulate MAIT cells to produce granzyme B via MR1 and cytokines in oral lichen planus. Oral Dis 2024. [PMID: 38937944 DOI: 10.1111/odi.15057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/19/2024] [Accepted: 06/15/2024] [Indexed: 06/29/2024]
Abstract
OBJECTIVE Oral lichen planus (OLP) is a chronic inflammatory disease characterized by a dense T-cell infiltration and the degeneration of basal keratinocytes. The potential functions of mucosal associated invariant T (MAIT) cells in OLP have been analyzed in our previous study. Keratinocytes under proinflammatory conditions have been demonstrated to activate T cells. This study was aimed to investigate how keratinocytes stimulate MAIT cells in OLP, and to explore the role of activated MAIT cells on keratinocytes. METHODS AND RESULTS Increased MAIT cells and higher activation marker CD69 were detected in OLP lesions by flow cytometry. The enhanced expression of MHC class I-like molecule (MR1) required for MAIT cell activation in the epithelial layer of OLP lesions was determined by immunohistochemistry. Keratinocytes treated by 5-A-RU prodrug and lipopolysaccharide, respectively, exhibited higher expression of MR1 and secretion of IL-18. In direct coculture systems consisting of keratinocytes and peripheral blood mononuclear cells, both 5-A-RU prodrug-pretreated keratinocytes and lipopolysaccharide-pretreated keratinocytes activated MAIT cells to secrete granzyme B, contributing to elevated keratinocyte apoptosis. CONCLUSIONS Keratinocytes were capable to activate MAIT cells via MR1 and cytokines in OLP, and granzyme B produced by activated MAIT cells intensified keratinocyte apoptosis, engaging in the pathogenesis of OLP.
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Affiliation(s)
- Qin Jiang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Fang Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Gang Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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Ren X, Li D, Zhou M, Hua H, Li C. Potential role of salivary lactic acid bacteria in pathogenesis of oral lichen planus. BMC Microbiol 2024; 24:197. [PMID: 38849732 PMCID: PMC11157935 DOI: 10.1186/s12866-024-03350-0] [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: 11/30/2023] [Accepted: 05/26/2024] [Indexed: 06/09/2024] Open
Abstract
BACKGROUND Emerging evidence emphasized the role of oral microbiome in oral lichen planus (OLP). To date, no dominant pathogenic bacteria have been identified consistently. It is noteworthy that a decreased abundance of Streptococcus, a member of lactic acid bacteria (LAB) in OLP patients has been commonly reported, indicating its possible effect on OLP. This study aims to investigate the composition of LAB genera in OLP patients by high-throughput sequencing, and to explore the possible relationship between them. METHODS We collected saliva samples from patients with OLP (n = 21) and healthy controls (n = 22) and performed 16 S rRNA gene high-throughput sequencing. In addition, the abundance of LAB genera was comprehensively analyzed and compared between OLP and HC group. To verify the expression of Lactococcus lactis, real time PCR was conducted in buccal mucosa swab from another 14 patients with OLP and 10 HC. Furthermore, the correlation was conducted between clinical severity of OLP and LAB. RESULTS OLP and HC groups showed similar community richness and diversity. The members of LAB, Lactococcus and Lactococcus lactis significantly decreased in saliva of OLP cases and negatively associated with OLP severity. In addition, Lactococcus and Lactococcus lactis showed negative relationship with Fusobacterium and Aggregatibacter, which were considered as potential pathogens of OLP. Similarly, compared with healthy controls, the amount of Lactococcus lactis in mucosa lesion of OLP patients was significantly decreased. CONCLUSIONS A lower amount of Lactococcus at genus level, Lactococcus lactis at species level was observed in OLP cases and associated with disease severity. Further studies to verify the relationship between LAB and OLP, as well as to explore the precise mechanism is needed.
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Affiliation(s)
- Xiaomeng Ren
- Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China
| | - Dan Li
- Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China
- Department of Stomatology, Xiongan Xuanwu Hospital, Baoding, Hebei, PR China
| | - Mimi Zhou
- Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, The Affiliated Hospital of Stomatology, School of Stomatology, Department of Oral Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, PR China
| | - Hong Hua
- Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China
| | - Chunlei Li
- Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, PR China.
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Choi Y. Animal models to study the pathogenesis and novel therapeutics of oral lichen planus. FRONTIERS IN ORAL HEALTH 2024; 5:1405245. [PMID: 38783985 PMCID: PMC11111855 DOI: 10.3389/froh.2024.1405245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 04/16/2024] [Indexed: 05/25/2024] Open
Abstract
Oral lichen planus (OLP) is a prevalent oral mucosal disease characterized by an unknown etiology and a complex pathogenesis. Patients with OLP endure a chronic course marked by alternating non-erosive and erosive lesions, with no definitive cure currently available. Particularly challenging is the treatment of recalcitrant erosive OLP, highlighting an urgent need for therapies targeting specific pathogenic pathways. In diseases like OLP, where the etiopathogenesis is intricate and elusive, animal models are indispensable for hypothesis testing and elucidating disease mechanisms. To date, only three animal models for oral lichenoid lesions have been reported in the literature. This Perspective paper evaluates these existing models, along with a novel OLP mouse model introduced at the 3rd International Conference on Oral Mucosal Immunity and Microbiome. The validity of these models is critically assessed, and their potential future applications in advancing our understanding of OLP are discussed.
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Affiliation(s)
- Youngnim Choi
- Department of Immunology and Molecular Microbiology in Dental Science, Seoul National University School of Dentistry and Dental Research Institute, Seoul, Republic of Korea
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Ju HM, Ahn YW, Ok SM, Jeong SH, Na HS, Chung J. Microbial Profiles in Oral Lichen Planus: Comparisons with Healthy Controls and Erosive vs. Non-Erosive Subtypes. Diagnostics (Basel) 2024; 14:828. [PMID: 38667474 PMCID: PMC11049134 DOI: 10.3390/diagnostics14080828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/04/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024] Open
Abstract
Recent studies have begun exploring the potential involvement of microbiota in the pathogenesis of oral lichen planus (OLP), yet comprehensive investigations remain limited. Hence, this study aimed to compare the microbial profiles in saliva samples obtained from patients with OLP against those from healthy controls (HC), along with a comparison between erosive (E) and non-erosive (NE) OLP patients. Saliva samples were collected from 60 OLP patients (E: n = 25, NE: n = 35) and 30 HC individuals. Analysis revealed no significant differences in alpha diversity, as assessed by the Chao1 and Shannon index, across the three groups. However, Bray-Curtis distance analysis indicated a significant disparity in microbiome composition distribution between HC and E-OLP, as well as HC and NE-OLP groups. The six most abundant phyla observed across the groups were Firmicutes, Bacteroidetes, Proteobacteria, Actinobacteria, Fusobacteria, and Saccharibacteria (TM7). Notably, OLP groups exhibited a higher prevalence of Bacteroidetes. Prevotella emerged as the predominant genus in the OLP groups, while Capnocytophaga showed a relatively higher prevalence in E-OLP compared to NE-OLP. This study's findings indicate a notable difference in microbiota composition between HC and patients with OLP. Additionally, differences in the microbiome were identified between the E-OLP and NE-OLP groups. The increase in the proportion of certain bacterial species in the oral microbiome suggests that they may exacerbate the inflammatory response and act as antigens for OLP.
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Affiliation(s)
- Hye-Min Ju
- Department of Oral Medicine, Dental and Life Science Institute, School of Dentistry, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan 50612, Republic of Korea; (H.-M.J.); (Y.-W.A.); (S.-M.O.); (S.-H.J.)
- Department of Oral Medicine, Dental Research Institute, School of Dentistry, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan 50612, Republic of Korea
| | - Yong-Woo Ahn
- Department of Oral Medicine, Dental and Life Science Institute, School of Dentistry, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan 50612, Republic of Korea; (H.-M.J.); (Y.-W.A.); (S.-M.O.); (S.-H.J.)
- Department of Oral Medicine, Dental Research Institute, School of Dentistry, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan 50612, Republic of Korea
| | - Soo-Min Ok
- Department of Oral Medicine, Dental and Life Science Institute, School of Dentistry, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan 50612, Republic of Korea; (H.-M.J.); (Y.-W.A.); (S.-M.O.); (S.-H.J.)
- Department of Oral Medicine, Dental Research Institute, School of Dentistry, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan 50612, Republic of Korea
| | - Sung-Hee Jeong
- Department of Oral Medicine, Dental and Life Science Institute, School of Dentistry, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan 50612, Republic of Korea; (H.-M.J.); (Y.-W.A.); (S.-M.O.); (S.-H.J.)
- Department of Oral Medicine, Dental Research Institute, School of Dentistry, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan 50612, Republic of Korea
| | - Hee-Sam Na
- Department of Oral Microbiology, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
- Oral Genomics Research Center, Pusan National University, Yangsan 50612, Republic of Korea
- Dental Research Institute, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
| | - Jin Chung
- Department of Oral Microbiology, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
- Oral Genomics Research Center, Pusan National University, Yangsan 50612, Republic of Korea
- Dental Research Institute, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
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Lavoro A, Cultrera G, Gattuso G, Lombardo C, Falzone L, Saverio C, Libra M, Salmeri M. Role of Oral Microbiota Dysbiosis in the Development and Progression of Oral Lichen Planus. J Pers Med 2024; 14:386. [PMID: 38673013 PMCID: PMC11050998 DOI: 10.3390/jpm14040386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 03/25/2024] [Accepted: 04/01/2024] [Indexed: 04/28/2024] Open
Abstract
Oral lichen planus (OLP) is a chronic inflammatory autoimmune disease of the oral cavity with malignant potential affecting 1.01% of the worldwide population. The clinical patterns of this oral disorder, characterized by relapses and remissions of the lesions, appear on buccal, lingual, gingival, and labial mucosa causing a significant reduction in the quality of life. Currently, there are no specific treatments for this disease, and the available therapies with topical and systemic corticosteroids only reduce symptoms. Although the etiopathogenesis of this pathological condition has not been completely understood yet, several exogenous and endogenous risk factors have been proposed over the years. The present review article summarized the underlying mechanisms of action involved in the onset of OLP and the most well-known triggering factors. According to the current data, oral microbiota dysbiosis could represent a potential diagnostic biomarker for OLP. However, further studies should be undertaken to validate their use in clinical practice, as well as to provide a better understanding of mechanisms of action and develop novel effective intervention strategies against OLP.
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Affiliation(s)
- Alessandro Lavoro
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (A.L.); (G.C.); (G.G.); (C.L.); (C.S.); (M.L.); (M.S.)
| | - Giovanni Cultrera
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (A.L.); (G.C.); (G.G.); (C.L.); (C.S.); (M.L.); (M.S.)
| | - Giuseppe Gattuso
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (A.L.); (G.C.); (G.G.); (C.L.); (C.S.); (M.L.); (M.S.)
| | - Cinzia Lombardo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (A.L.); (G.C.); (G.G.); (C.L.); (C.S.); (M.L.); (M.S.)
| | - Luca Falzone
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (A.L.); (G.C.); (G.G.); (C.L.); (C.S.); (M.L.); (M.S.)
| | - Candido Saverio
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (A.L.); (G.C.); (G.G.); (C.L.); (C.S.); (M.L.); (M.S.)
- Research Center for Prevention, Diagnosis and Treatment of Cancer, University of Catania, 95123 Catania, Italy
| | - Massimo Libra
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (A.L.); (G.C.); (G.G.); (C.L.); (C.S.); (M.L.); (M.S.)
- Research Center for Prevention, Diagnosis and Treatment of Cancer, University of Catania, 95123 Catania, Italy
| | - Mario Salmeri
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (A.L.); (G.C.); (G.G.); (C.L.); (C.S.); (M.L.); (M.S.)
- Research Center for Prevention, Diagnosis and Treatment of Cancer, University of Catania, 95123 Catania, Italy
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Belibasakis GN, Senevirantne CJ, Jayasinghe RD, Vo PTD, Bostanci N, Choi Y. Bacteriome and mycobiome dysbiosis in oral mucosal dysplasia and oral cancer. Periodontol 2000 2024. [PMID: 38501658 DOI: 10.1111/prd.12558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/13/2024] [Accepted: 02/17/2024] [Indexed: 03/20/2024]
Abstract
It has long been considered that the oral microbiome is tightly connected to oral health and that dysbiotic changes can be detrimental to the occurrence and progression of dysplastic oral mucosal lesions or oral cancer. Improved understanding of the concepts of microbial dysbiosis together with advances in high-throughput molecular sequencing of these pathologies have charted in greater microbiological detail the nature of their clinical state. This review discusses the bacteriome and mycobiome associated with oral mucosal lesions, oral candidiasis, and oral squamous cell carcinoma, aiming to delineate the information available to date in pursuit of advancing diagnostic and prognostic utilities for oral medicine.
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Affiliation(s)
- Georgios N Belibasakis
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Ruwan Duminda Jayasinghe
- Department of Oral Medicine and Periodontology, Faculty of Dental Sciences, University of Peradeniya, Peradeniya, Sri Lanka
| | - Phuc Thi-Duy Vo
- Department of Immunology and Molecular Microbiology, School of Dentistry, Seoul, Korea
| | - Nagihan Bostanci
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Youngnim Choi
- Department of Immunology and Molecular Microbiology, School of Dentistry, Seoul, Korea
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10
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Pei S, Feng L, Zhang Y, Liu J, Li J, Zheng Q, Liu X, Luo B, Ruan Y, Li H, Hu W, Niu J, Tian T. Effects of long-term metal exposure on the structure and co-occurrence patterns of the oral microbiota of residents around a mining area. Front Microbiol 2023; 14:1264619. [PMID: 37928665 PMCID: PMC10620801 DOI: 10.3389/fmicb.2023.1264619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/06/2023] [Indexed: 11/07/2023] Open
Abstract
Objectives The aim of our study was to investigate the impact of long-term exposure to heavy metals on the microbiome of the buccal mucosa, to unveil the link between environmental contamination and the oral microbial ecosystem, and to comprehend its potential health implications. Methods Subjects were divided into two groups: the exposure group and the control group. We collected samples of buccal mucosa, soil, and blood, and conducted microbial diversity analysis on both groups of oral samples using 16S rRNA gene sequencing. The concentrations of heavy metals in blood and soil samples were also determined. Additionally, microbial networks were constructed for the purpose of topological analysis. Results Due to long-term exposure to heavy metals, the relative abundance of Rhodococcus, Delftia, Fusobacterium, and Peptostreptococcus increased, while the abundance of Streptococcus, Gemella, Prevotella, Granulicatella, and Porphyromonas decreased. The concentrations of heavy metals in the blood (Pb, Cd, Hg, and Mo) were associated with the growth of Rhodococcus, Delftia, Porphyromonas, and Gemella. In addition, the relative abundances of some pathogenic bacteria, such as Streptococcus anginosus, S. gordonii, and S. mutans, were found to be enriched in the exposure group. Compared to the exposure group network, the control group network had a greater number of nodes, modules, interactive species, and keystone taxa. Module hubs and connectors in the control group converted into peripherals in the exposure group, indicating that keystone taxa changed. Metals in the blood (Pb, Cd, Hg, and Mo) were drivers of the microbial network of the buccal mucosa, which can have adverse effects on the network, thus providing conditions for the occurrence of certain diseases. Conclusion Long-term exposure to multiple metals perturbs normal bacterial communities in the buccal mucosa of residents in contaminated areas. This exposure reduces the complexity and stability of the microbial network and increases the risk of developing various diseases.
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Affiliation(s)
- Shuwei Pei
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Lu Feng
- School of Stomatology, Lanzhou University, Lanzhou, Gansu, China
| | - Yonghua Zhang
- Child Health Department, Lanzhou Maternal and Child Health Care Hospital, Lanzhou, Gansu, China
| | - Jiangyun Liu
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Jia Li
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Qiwen Zheng
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Xingrong Liu
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Bin Luo
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Ye Ruan
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Huan Li
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Weigang Hu
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, China
| | - Jingping Niu
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Tian Tian
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
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11
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Du G, Deng Y, Pan L, Han X, Tang G, Yu S. Preliminary analysis of mucosal and salivary bacterial communities in oral lichen planus. Oral Dis 2023; 29:2710-2722. [PMID: 36587396 DOI: 10.1111/odi.14493] [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: 08/25/2022] [Revised: 12/18/2022] [Accepted: 12/27/2022] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To characterize the bacterial community from different oral niches (buccal mucosa and saliva) in oral lichen planus (OLP) patients. SUBJECTS AND METHODS This preliminary study analyzed site-specific (mucosa and saliva) microbial landscape of 20 OLP patients and 10 healthy controls. RESULTS The microbial diversity was similar between OLP patients and healthy controls in both salivary and mucosal communities. However, the topological properties of co-occurrence networks of salivary and mucosal microbiome were different between healthy controls and OLP patients. SparCC analysis inferred three and five keystone taxa in the salivary and mucosal microbial networks of healthy controls, respectively. However, in the salivary and mucosal bacterial networks of OLP patients, only one hub OTU and three OTUs were identified as keystone taxa, respectively. In addition, analysis of community cohesion revealed that mucosal microbial community in OLP patients had lower stability than that in healthy controls. In final, correlation assay showed that the clinical severity of OLP was positively associated with the relative abundance of Rothia in saliva but negatively associated with that of Porphyromonas on mucosa. CONCLUSIONS The salivary and mucosal bacterial communities of OLP patients differ in terms of composition, the genera associated with OLP severity, and co-occurrence patterns.
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Affiliation(s)
- Guanhuan Du
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Yiwen Deng
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Lei Pan
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Xiaozhe Han
- Department of Oral Science and Translational Research, Nova Southeastern University College of Dental Medicine, Fort Lauderdale, Florida, USA
| | - Guoyao Tang
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Shiyan Yu
- Shanghai Institute of Precision Medicine, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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12
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Wang J, Yang J, Xia W, Zhang M, Tang H, Wang K, Zhou C, Qian L, Fan Y. Escherichia coli enhances Th17/Treg imbalance via TLR4/NF-κB signaling pathway in oral lichen planus. Int Immunopharmacol 2023; 119:110175. [PMID: 37058754 DOI: 10.1016/j.intimp.2023.110175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/25/2023] [Accepted: 04/08/2023] [Indexed: 04/16/2023]
Abstract
Oral lichen planus (OLP) is a T-cell-mediated immunoinflammatory disease. Several studies have proposed that Escherichia coli (E. coli) may participate in the progress of OLP. In this study, we examined the functional role of E. coli and its supernatant via toll-like receptor 4 (TLR4)/nuclear factor-kappab (NF-κB) signaling pathway in regulating T helper (Th) 17/ regulatory T (Treg) balance and related cytokines and chemokines profile in OLP immune microenvironment. We discovered that E. coli and supernatant could activate the TLR4/NF-κB signaling pathway in human oral keratinocytes (HOKs) and OLP-derived T cells and increase the expression of interleukin (IL)-6, IL-17, C-C motif chemokine ligand (CCL) 17 and CCL20, thereby increasing the expression of retinoic acid-related orphan receptor (RoRγt) and the proportion of Th17 cells. Furthermore, the co-culture experiment revealed that HOKs treated with E. coli and supernatant increased T cell proliferation and migration, which promoted HOKs apoptosis. TLR4 inhibitor (TAK-242) successfully reversed the effect of E. coli and its supernatant. Consequently, E. coli and supernatant activated the TLR4/NF-κB signaling pathway in HOKs and OLP-derived T cells, leading to increased cytokines and chemokines expression and Th17/Treg imbalance in OLP.
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Affiliation(s)
- Jia Wang
- Department of Oral Medicine, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, Jiangsu, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, Jiangsu, China
| | - Jingjing Yang
- Department of Oral Medicine, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, Jiangsu, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, Jiangsu, China
| | - Wenhui Xia
- Department of Oral Medicine, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, Jiangsu, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, Jiangsu, China
| | - Mengna Zhang
- Department of Oral Medicine, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, Jiangsu, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, Jiangsu, China
| | - Haonan Tang
- Department of Oral Medicine, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, Jiangsu, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, Jiangsu, China
| | - Keyi Wang
- Department of Oral Medicine, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, Jiangsu, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, Jiangsu, China
| | - Chenyu Zhou
- Department of Oral Medicine, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, Jiangsu, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, Jiangsu, China
| | - Ling Qian
- Department of Oral Medicine, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, Jiangsu, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, Jiangsu, China
| | - Yuan Fan
- Department of Oral Medicine, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, Jiangsu, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, Jiangsu, China.
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13
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Xiao X, Liu S, Deng H, Song Y, Zhang L, Song Z. Advances in the oral microbiota and rapid detection of oral infectious diseases. Front Microbiol 2023; 14:1121737. [PMID: 36814562 PMCID: PMC9939651 DOI: 10.3389/fmicb.2023.1121737] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 01/13/2023] [Indexed: 02/09/2023] Open
Abstract
Several studies have shown that the dysregulation of the oral microbiota plays a crucial role in human health conditions, such as dental caries, periodontal disease, oral cancer, other oral infectious diseases, cardiovascular diseases, diabetes, bacteremia, and low birth weight. The use of traditional detection methods in conjunction with rapidly advancing molecular techniques in the diagnosis of harmful oral microorganisms has expanded our understanding of the diversity, location, and function of the microbiota associated with health and disease. This review aimed to highlight the latest knowledge in this field, including microbial colonization; the most modern detection methods; and interactions in disease progression. The next decade may achieve the rapid diagnosis and precise treatment of harmful oral microorganisms.
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Affiliation(s)
- Xuan Xiao
- Department of Oral Mucosa, Shanghai Stomatological Hospital, Fudan University, Shanghai, China,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Shanghai Stomatological Hospital, Fudan University, Shanghai, China
| | - Shangfeng Liu
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Shanghai Stomatological Hospital, Fudan University, Shanghai, China
| | - Hua Deng
- Translational Medicine Center, Guangdong Women and Children Hospital, Guangzhou, China
| | - Yuhan Song
- Department of Oral Mucosa, Shanghai Stomatological Hospital, Fudan University, Shanghai, China,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Shanghai Stomatological Hospital, Fudan University, Shanghai, China
| | - Liang Zhang
- Translational Medicine Center, Guangdong Women and Children Hospital, Guangzhou, China,Liang Zhang,
| | - Zhifeng Song
- Department of Oral Mucosa, Shanghai Stomatological Hospital, Fudan University, Shanghai, China,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Shanghai Stomatological Hospital, Fudan University, Shanghai, China,*Correspondence: Zhifeng Song,
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14
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Bankvall M, Carda-Diéguez M, Mira A, Karlsson A, Hasséus B, Karlsson R, Robledo-Sierra J. Metataxonomic and metaproteomic profiling of the oral microbiome in oral lichen planus - a pilot study. J Oral Microbiol 2022; 15:2161726. [PMID: 36605405 PMCID: PMC9809343 DOI: 10.1080/20002297.2022.2161726] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background A growing body of evidence demonstrates a different bacterial composition in the oral cavity of patients with oral lichen planus (OLP). Patients and methods Buccal swab samples were collected from affected and non-affected sites of six patients with reticular OLP and the healthy oral mucosa of six control subjects. 16S rRNA gene MiSeq sequencing and mass spectrometry-based proteomics were utilised to identify the metataxonomic and metaproteomic profiles of the oral microbiome in both groups. Results From the metataxonomic analysis, the most abundant species in the three subgroups were Streptococcus oralis and Pseudomonas aeruginosa, accounting for up to 70% of the total population. Principal Coordinates Analysis showed differential clustering of samples from the healthy and OLP groups. ANCOM-BC compositional analysis revealed multiple species (including P. aeruginosa and several species of Veillonella, Prevotella, Streptococcus and Neisseria) significantly over-represented in the control group and several (including Granulicatella elegans, Gemella haemolysans and G. parahaemolysans) in patients with OLP. The metaproteomic data were generally congruent and revealed that several Gemella haemolysans-belonging peptidases and other proteins with inflammatory and virulence potential were present in OLP lesions. Conclusion Our data suggest that several bacterial species are associated with OLP. Future studies with larger cohorts should be conducted to determine their role in the aetiology of OLP and evaluate their potential as disease biomarkers.
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Affiliation(s)
- Maria Bankvall
- Department of Dental Medicine, Karolinska Institute, Huddinge, Sweden
| | - Miguel Carda-Diéguez
- Department of Health and Genomics, Center for Advanced Research in Public Health, FISABIO Foundation, Valencia, Spain
| | - Alex Mira
- Department of Health and Genomics, Center for Advanced Research in Public Health, FISABIO Foundation, Valencia, Spain,School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | | | - Bengt Hasséus
- Department of Oral Medicine and Pathology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Roger Karlsson
- Clinical microbiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jairo Robledo-Sierra
- Nanoxis Consulting AB, Gothenburg, Sweden,Faculty of Dentistry, CES University, Medellin, Colombia,CONTACT Jairo Robledo-Sierra Faculty of Dentistry, CES University, Medellin, Colombia
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15
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Chen J, Liu K, Sun X, Shi X, Zhao G, Yang Z. Microbiome landscape of lesions and adjacent normal mucosal areas in oral lichen planus patient. Front Microbiol 2022; 13:992065. [PMID: 36338092 PMCID: PMC9630593 DOI: 10.3389/fmicb.2022.992065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/23/2022] [Indexed: 11/29/2022] Open
Abstract
The pathogenesis of oral lichen planus (OLP) remains unclear, and microbial dysbiosis has been proposed to play a role in the pathogenesis of OLP. Oral mucosal swabs from 77 OLP patients and 76 healthy subjects were collected. The bacterial community among the OLP lesion, the adjacent normal mucosal, and the oral mucosal surface in healthy people were analyzed by 16S sequencing. The factor of gender and age that may affect the flora distribution of OLP patients were explored. Results indicate no significant difference in microbiota between OLP and the adjacent group. Compared with the healthy group, Neisseria, Haemophilus, Fusobacterium, Porphyromonas, Rothia, Actinomyces, and Capnocytophaga significantly increased in the OLP group. Actinomyces increased in male OLP patients, and the other six bacteria increased in female OLP patients. In female OLP patients, Lautropia and Dialister were positively correlated with age. While in male OLP patients, Moraxella, Porphyromonas, and Fusobacterium were positively correlated with age. Functional enrichment analysis suggested that abnormal energy metabolism related to ATP synthases, abnormal transport and metabolism of glycans, amino acids, and vitamins, and disorders of the local immune microenvironment might exist in OLP lesion.
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Affiliation(s)
- Jian Chen
- Department of Stomatology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Kaikai Liu
- Department of Stomatology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Xiaona Sun
- Department of Stomatology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Xuanxuan Shi
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guanghui Zhao
- Medical Laboratory Center, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Zhongjun Yang
- Department of Stomatology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
- *Correspondence: Zhongjun Yang,
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16
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Ide M, Karimova M, Setterfield J. Oral Health, Antimicrobials and Care for Patients With Chronic Oral Diseases – A Review of Knowledge and Treatment Strategies. FRONTIERS IN ORAL HEALTH 2022; 3:866695. [PMID: 35747534 PMCID: PMC9210540 DOI: 10.3389/froh.2022.866695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/04/2022] [Indexed: 11/19/2022] Open
Abstract
Periodontal and chronic oral mucosal diseases are significant life impacting conditions which may co-exist and synergistically act to cause more severe and widespread oral pathology with enhanced challenges in effective management. Clinicians regularly observe these effects and struggle to effectively manage both problems in many patients. There is limited understanding of many basic and applied scientific elements underpinning potentially shared aetiopathological features and management. Recent developments in translational science provide an opportunity to greater improve knowledge and subsequently care for patients with these problems.
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17
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Jung W, Jang S. Oral Microbiome Research on Oral Lichen Planus: Current Findings and Perspectives. BIOLOGY 2022; 11:biology11050723. [PMID: 35625451 PMCID: PMC9138428 DOI: 10.3390/biology11050723] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/05/2022] [Accepted: 05/07/2022] [Indexed: 12/12/2022]
Abstract
Simple Summary Oral lichen planus is a disease of the oral mucosa, which frequently affects women aged 40 years or older. Though the T cell-mediated immune response is involved in the development of oral lichen planus, attempts to identify a microorganism that causes the disease have been unsuccessful. Recent studies on the development of oral lichen planus are focusing on the role of the oral microbiome, which includes oral microbiota and their products, and the host environment. The role of the human microbiome in various diseases has been identified and regulating the microbiome is becoming important in personalized medicine. In this review, we summarized current findings on the role of the oral microbiome in the development of oral lichen planus. The homeostasis of the oral microbiome is disrupted in patients, and functional analysis of oral microbiota and oral mucosa implies that pathways involved in defense against bacterial infection and in the inflammatory response are activated in the oral lichen planus-associated oral microbiome. Though the lack of studies to date makes it difficult to conclude, further studies on the oral microbiome associated with the disease will enable a holistic understanding of the role of the oral microbiome in the development of oral lichen planus and developing a personalized therapy for the disease. Abstract Oral lichen planus (OLP) is a chronic inflammatory disease of the oral mucosa with an unknown etiology. The role of oral microbes in the development of OLP has gained researchers’ interest. In this review, we summarized the findings of studies focused on the relationship between OLP and oral microbiome, which includes the composition of oral microbiota, molecules produced by oral microbiota or the host, and the oral environment of the host. According to the studies, the oral microbial community in OLP patients undergoes dysbiosis, and the microbial dysbiosis in OLP patients is more prominent in the buccal mucosa than in the saliva. However, no same microorganisms have been suggested to be associated with OLP in multiple investigations, implying that the functional aspects of the oral microbiota are more important in OLP development than the composition of the oral microbiota. According to studies on host factors that make up the oral environment, signal pathways involved in cellular processes, such as keratinization, inflammation, and T cell responses are triggered in OLP. Studies on the functional aspects of the oral microbiota, as well as interactions between the host and the oral microbiota, are still lacking, and more research is required.
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Affiliation(s)
- Won Jung
- Department of Oral Medicine, Institute of Oral Bioscience, School of Dentistry, Jeonbuk National University, Jeonju-si 54907, Korea;
- Research Institute of Clinical Medicine, Jeonbuk National University, Jeonju-si 54907, Korea
- Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju-si 54907, Korea
| | - Sungil Jang
- Department of Oral Biochemistry, Institute of Oral Bioscience, School of Dentistry, Jeonbuk National University, Jeonju-si 54907, Korea
- Correspondence: ; Tel.: +82-63-270-4027
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18
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El-Howati A, Thornhill MH, Colley HE, Murdoch C. Immune mechanisms in oral lichen planus. Oral Dis 2022; 29:1400-1415. [PMID: 35092132 DOI: 10.1111/odi.14142] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 01/12/2022] [Accepted: 01/17/2022] [Indexed: 11/28/2022]
Abstract
Oral lichen planus (OLP) is a T-cell-mediated inflammatory disease of the oral mucosa that has been extensively researched over many years but as yet the mechanisms of pathogenesis are still not fully understood. Whilst the specific etiologic factors driving OLP remain ambiguous, evidence points to the development of a chronic, dysregulated immune response to OLP-mediating antigens presented by innate immune cells and oral keratinocytes leading to increased cytokine, chemokine and adhesion molecule expression. These molecules recruit T-cells and mast cells to the diseased site and orchestrate a complex interplay between cells that culminates in keratinocyte cell death, mucosal basement membrane destruction and long-term chronicity of the disease. The main lymphocytes involved are thought to be CD8+ cytotoxic and CD4+ Th1 polarised T-cells although recent evidence indicates the involvement of other Th subsets such as Th9, Th17 and Tregs, suggesting that a more complex immune cell relationship exists during the disease process. This review provides an overview of the immune mechanisms at play in OLP pathogenesis with particular emphasis on the role of the different Th subsets and how these recent discoveries may guide research toward identifying potential therapeutic targets.
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Affiliation(s)
- Asma El-Howati
- School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom.,Department of Oral Medicine, Faculty of Dentistry, University of Benghazi, Benghazi, Libya
| | - Martin H Thornhill
- School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Helen E Colley
- School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Craig Murdoch
- School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
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19
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Boch K, Langan EA, Kridin K, Zillikens D, Ludwig RJ, Bieber K. Lichen Planus. Front Med (Lausanne) 2021; 8:737813. [PMID: 34790675 PMCID: PMC8591129 DOI: 10.3389/fmed.2021.737813] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 10/11/2021] [Indexed: 12/17/2022] Open
Abstract
Lichen planus (LP) is a T cell-mediated disease affecting the stratified squamous epithelia of the skin and/or mucus membrane. Histologically, the disease is characterized by a lichenoid inflammatory infiltrate and vacuolar degeneration of the basal layer of the epidermis. LP has three major subtypes: Cutaneous, mucosal and appendageal LP. Rarely, it may affect the nails in the absence of skin and/or mucosal changes. LP may also be induced by several drugs, typically anti-hypertensive medication or be associated with infections, particularly viral hepatitis. The diagnosis is based on the clinical presentation and characteristic histological findings. Although the disease is often self-limiting, the intractable pruritus and painful mucosal erosions result in significant morbidity. The current first-line treatment are topical and/or systemic corticosteroids. In addition, immunosuppressants may be used as corticosteroid-sparing agents. These, however are often not sufficient to control disease. Janus kinase inhibitors and biologics (anti-IL-12/23, anti-IL17) have emerged as novel future treatment options. Thus, one may expect a dramatic change of the treatment landscape of LP in the near future.
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Affiliation(s)
- Katharina Boch
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - Ewan A Langan
- Department of Dermatology, University of Lübeck, Lübeck, Germany.,Dermatological Sciences, University of Manchester, Manchester, United Kingdom
| | - Khalaf Kridin
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany.,Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Detlef Zillikens
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - Ralf J Ludwig
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Katja Bieber
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
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20
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Crosstalk between the oral microbiota, mucosal immunity, and the epithelial barrier regulates oral mucosal disease pathogenesis. Mucosal Immunol 2021; 14:1247-1258. [PMID: 34040155 DOI: 10.1038/s41385-021-00413-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 04/26/2021] [Accepted: 05/04/2021] [Indexed: 02/07/2023]
Abstract
Oral mucosal disease (OMD), which is also called soft tissue oral disease, is described as a series of disorders or conditions affecting the mucosa and soft tissue in the oral cavity. Its etiology is unclear, but emerging evidence has implicated the influence of the composition of the oral mucosa and saliva-resident microbiota. In turn, this dysbiosis effects the immune response balance and epithelial barrier function, followed by the occurrence and progression of OMD. In addition, oral microbial dysbiosis is diverse in different types of diseases and different disease progressions, suggesting that key causal pathogens may exist in various oral pathologies. This narrative literature review primarily discusses the most recent findings focusing on how microbial dysbiosis communicates with mucosal adaptive immune cells and the epithelial barrier in the context of five representative OMDs, including oral candidiasis (OC), oral lichen planus (OLP), recurrent aphthous ulcer (RAU), oral leukoplakia (OLK), and oral squamous cell carcinoma (OSCC), to provide new insight into the pathogenetic mechanisms of OMDs.
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Karimova M, Moyes D, Ide M, Setterfield JF. The human microbiome in immunobullous disorders and lichen planus. Clin Exp Dermatol 2021; 47:522-528. [PMID: 34669983 DOI: 10.1111/ced.14987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 10/05/2021] [Accepted: 10/11/2021] [Indexed: 12/18/2022]
Abstract
For several decades, there has been a significant growth in the incidence of autoimmune diseases. Studies indicate that genetic factors may not be the only trigger for disease development and that dysbiosis of the microbiome may be another mechanism involved in the pathogenesis of autoimmune diseases. The role of the microbiome in the development of common skin disorders such as psoriasis, atopic dermatitis, acne and rosacea is increasingly well understood. However, few studies have focused on lichen planus and the rare acquired immunobullous diseases, both mucocutaneous groups of disorders linked to skin, oral and gut microbiomes. This review provides an insight into the current understanding of how the microbiome may contribute to the development of autoimmunity and to the maintenance and exacerbation of acquired immunobullous and lichenoid diseases. These mechanisms may have implications for future preventive and therapeutic approaches.
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Affiliation(s)
- M Karimova
- Centre for Host Microbiome Interaction (CHMI), Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK
| | - D Moyes
- Centre for Host Microbiome Interaction (CHMI), Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK
| | - M Ide
- Centre for Host Microbiome Interaction (CHMI), Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK.,Department of Periodontology, Centre for Host-Microbiome Interactions (CHMI), Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, Guy's Hospital, London, UK
| | - J F Setterfield
- Centre for Host Microbiome Interaction (CHMI), Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK.,St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Department of Oral Medicine, Guy's and St Thomas' NHS Foundation Trust, London, UK
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22
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Wang X, Ge X, Liao W, Cao Y, Li R, Zhang F, Zhao B, Du J. ZFP36 promotes VDR mRNA degradation to facilitate cell death in oral and colonic epithelial cells. Cell Commun Signal 2021; 19:85. [PMID: 34380509 PMCID: PMC8355874 DOI: 10.1186/s12964-021-00765-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/13/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Vitamin D receptor (VDR) plays a vital protective role in oral and colonic epithelial cells. Albeit we know that VDR expression is reduced in the mucosal epithelial layers of autoimmune diseases, the mechanism by which VDR is decreased remains elusive. METHODS VDR and zinc finger protein 36 (ZFP36) levels in human samples and cell lines were detected by real-time PCR, western blot and immunostaining. Luciferase report assay was used to test cis-elements in VDR gene promoter, real-time PCR was applied to measure mRNA decay and western blot was performed to evaluate protein degradation. RNA affinity chromatography assay was used to test protein-mRNA interaction. Co-immunoprecipitation was used to detect protein-protein interaction. The role of ZFP36 in AU-rich elements (AREs) in the 3' untranslated region (UTR) of VDR mRNA was also measured by luciferase report assay. RESULTS We identify ZFP36 can bind with the AREs in the 3'UTR of VDR mRNA, leading to mRNA degradation in oral and colonic epithelial cells under inflammatory circumstance. Either ZFP36 protein or AREs of VDR mRNA mutation abolishes this protein-mRNA binding process. After the key amino acid's mutation, ZFP36 fails to decrease VDR mRNA expression. We also find that VDR physically binds with Y box-binding protein 1 (YBX-1) to block YBX-1's nuclear translocation and ameliorate cell death in the presence of inflammation. CONCLUSION These findings provide insights into the cause of VDR decrease in oral and colonic epithelial cells under inflammatory condition and explain how VDR maintains cell viability in these cells. Video abstract.
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Affiliation(s)
- Xiangyu Wang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China.,Department of Child Dental and Preventive Dentistry, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China.,Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, No. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Xuejun Ge
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China.,Department of Endodontics, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China
| | - Wang Liao
- Department of Cardiology, Hainan General Hospital, Hainan Clinical Medicine Research Institution, Haikou, China
| | - Yong Cao
- Division of Gastroenterology, Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ran Li
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China.,Department of Child Dental and Preventive Dentistry, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China
| | - Fang Zhang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China.,Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, No. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Bin Zhao
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China.,Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, No. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Jie Du
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China. .,Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, No. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China. .,Institute of Biomedical Research, Shanxi Medical University, Taiyuan, Shanxi, China.
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Progress in Oral Microbiome Related to Oral and Systemic Diseases: An Update. Diagnostics (Basel) 2021; 11:diagnostics11071283. [PMID: 34359364 PMCID: PMC8306157 DOI: 10.3390/diagnostics11071283] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/09/2021] [Accepted: 07/14/2021] [Indexed: 02/07/2023] Open
Abstract
The human oral microbiome refers to an ecological community of symbiotic and pathogenic microorganisms found in the oral cavity. The oral cavity is an environment that provides various biological niches, such as the teeth, tongue, and oral mucosa. The oral cavity is the gateway between the external environment and the human body, maintaining oral homeostasis, protecting the mouth, and preventing disease. On the flip side, the oral microbiome also plays an important role in the triggering, development, and progression of oral and systemic diseases. In recent years, disease diagnosis through the analysis of the human oral microbiome has been realized with the recent development of innovative detection technology and is overwhelmingly promising compared to the previous era. It has been found that patients with oral and systemic diseases have variations in their oral microbiome compared to normal subjects. This narrative review provides insight into the pathophysiological role that the oral microbiome plays in influencing oral and systemic diseases and furthers the knowledge related to the oral microbiome produced over the past 30 years. A wide range of updates were provided with the latest knowledge of the oral microbiome to help researchers and clinicians in both academic and clinical aspects. The microbial community information can be utilized in non-invasive diagnosis and can help to develop a new paradigm in precision medicine, which will benefit human health in the era of post-metagenomics.
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The Effect of Mouthrinse with 0.05% Dexamethasone Solution on the Oral Bacterial Community of Oral Lichen Planus Patients: Prospective Pilot Study. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11146286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Few studies have already been performed to assess oral bacteria during steroid therapy for oral lichen planus (OLP). Thus, the aim of our study was to analyze the effect of dexamethasone mouthrinse treatment on the oral bacteria of OLP patients. This prospective study was conducted on patients who were diagnosed with OLP and treated with 0.05% dexamethasone mouthrinse twice per day for 4 weeks. Using unstimulated saliva of the patients before and after treatment, the qualitative and quantitative changes in oral bacteria were analyzed using quantitative real-time polymerase chain reaction (qPCR). The qPCR results were analyzed using Wilcoxon signed-rank test to the quantitative changes with dexamethasone mouthrinse. The statistical significance was considered at a level of 0.05. In total, 20 patients were enrolled in this study, wherein all were noted to show improved symptoms of OLP. Fifteen patients (75%) had a qualitative change in the oral microbial species and an improved relative periodontitis risk score (from 26.1 ± 10.7 to 20.9 ± 9.2; p = 0.008). However, quantitative changes in all species were determined to be not statistically different before and after the treatment. Most OLP patients had a changed microbial community composition after 0.05% dexamethasone mouthrinse for 4 weeks. In particular, the composition of the periodontopathic bacteria was improved after the treatment.
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Comparative Analyses of the Subgingival Microbiome in Chronic Periodontitis Patients with and without Gingival Erosive Oral Lichen Planus Based on 16S rRNA Gene Sequencing. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9995225. [PMID: 34258290 PMCID: PMC8257348 DOI: 10.1155/2021/9995225] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/28/2021] [Accepted: 06/17/2021] [Indexed: 12/16/2022]
Abstract
The aim of the study was to compare the microbiota composition and bacterial diversity of subgingival plaque in chronic periodontitis patients with and without gingival erosive oral lichen planus. The subgingival plaque samples of 20 chronic periodontitis patients with gingival erosive oral lichen planus (CP-OLP group) and 19 chronic periodontitis patients without gingival erosive oral lichen planus (CP group) were analyzed by 16S rRNA gene high-throughput sequencing. Compared with the CP group, the richness and diversity of subgingival plaque microflora in the CP-OLP group decreased significantly. There were some differences between the two groups in the composition of microflora on the levels of phylum and genus. Distributions of Prevotella and Leptotrichia in the CP-OLP group were significantly lower than those in the CP group. The dominant genera in CP-OLP group were Pseudomonas and Granulicatella. These results indicated that gingival erosive oral lichen planus may influence the structure and proportion of subgingival plaque microflora.
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Li S, Zhang Y, Yang Z, Li J, Li Y, Li H, Li W, Jia J, Ge S, Sun Y. Helicobacter pylori infection is correlated with the incidence of erosive oral lichen planus and the alteration of the oral microbiome composition. BMC Microbiol 2021; 21:122. [PMID: 33879055 PMCID: PMC8059323 DOI: 10.1186/s12866-021-02188-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 04/07/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Oral lichen planus (OLP), a common clinical oral disease, is associated with an increased risk of malignant transformation. The mechanism underlying the pathogenesis of OLP is unknown. Oral dysbacteriosis is reported to be one of the aetiological factors of OLP. Although Helicobacter pylori infection is associated with various oral diseases, the correlation between H. pylori infection and OLP is unclear. This study aimed to investigate the effect of H. pylori infection on OLP pathogenesis and oral microbiome composition in the Chinese population, which has a high incidence of H. pylori infection. RESULT In this study, saliva samples of 30 patients with OLP (OLP group) and 21 negative controls (NC group) were collected. H. pylori infection was detected using the carbon-13-labeled urea breath test (UBT). The saliva samples were divided into the following four groups based on the H. pylori status: H. pylori-positive OLP (OLP+), H. pylori-positive NC (NC+), H. pylori-negative OLP (OLP-), and H. pylori-negative NC (NC-). Oral microbiome compositions were significantly different between the OLP and NC groups and between the OLP- and OLP+ groups. Compared with those in the OLP- group, those in the OLP+ group had a higher incidence of erosive OLP and higher levels of salivary cytokines. In contrast, the oral microbiome composition and cytokine levels were not significantly different between the NC- and NC+ groups. CONCLUSIONS This is the first report to demonstrate that H. pylori infection is significantly correlated with the pathogenesis of erosive OLP.
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Affiliation(s)
- Shutong Li
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Microbiology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, Shandong, China
| | - Yangheng Zhang
- Department of Periodontology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Zongcheng Yang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, People's Republic of China
| | - Jingyuan Li
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, Shandong, China
| | - Ya Li
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Microbiology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Huanjie Li
- School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Wenjuan Li
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Microbiology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Jihui Jia
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Microbiology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Shaohua Ge
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, 250012, Shandong, China.
| | - Yundong Sun
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Microbiology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China.
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Zheng SW, Xu P, Cai LT, Tan ZW, Guo YT, Zhu RX, He Y. The presence of Prevotella melaninogenica within tissue and preliminary study on its role in the pathogenesis of oral lichen planus. Oral Dis 2021; 28:1580-1590. [PMID: 33780104 DOI: 10.1111/odi.13862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/03/2021] [Accepted: 03/22/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Oral lichen planus (OLP) is a chronic inflammatory disease that occurs in the oral mucosa with characteristic white striations lesions, recurrent erosions, and pains. The etiology and pathogenesis of OLP are still unclear. MATERIALS AND METHODS We analyzed the bacterial community structure of buccal mucosa in patients with OLP and normal controls by high-throughput sequencing. Fluorescence in situ hybridization (FISH) was used to detect Prevotella melaninogenica (P. melaninogenica) in 13 OLP samples and 10 controls. The amounts of P. melaninogenica in OLP buccal mucosa and the expression of inflammatory cytokines in co-culture of mouse-derived macrophages with P. melaninogenica were detected by RT-qPCR. RESULTS The P. melaninogenica was more abundant in OLP than in healthy controls, and the differences were significant at the level of the phylum, family, genus, and species (p < .05). FISH showed that P. melaninogenica can invade the epithelium and even the lamina propria of OLP, while no invasion was found in the normal mucosa. Prevotella melaninogenica can adhere to and invade macrophages and then activate the transcription of IL-1β, IL-6, and TNF-α in NF-κB signaling pathway. CONCLUSION Prevotella melaninogenica may be involved in the pathogenic process of OLP, and its specific mechanism deserves further study.
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Affiliation(s)
- Sai-Wei Zheng
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School of Stomatology, Tongji University, Shanghai, China
| | - Pan Xu
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School of Stomatology, Tongji University, Shanghai, China
| | - Li-Ting Cai
- Department of Bioinformatics, School of life Sciences and technology, Tongji University, Shanghai, China
| | - Zheng-Wu Tan
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School of Stomatology, Tongji University, Shanghai, China
| | - Yi-Ting Guo
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School of Stomatology, Tongji University, Shanghai, China
| | - Rui-Xin Zhu
- Department of Bioinformatics, School of life Sciences and technology, Tongji University, Shanghai, China
| | - Yuan He
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School of Stomatology, Tongji University, Shanghai, China
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Min H, Baek K, Lee A, Seok YJ, Choi Y. Genomic characterization of four Escherichia coli strains isolated from oral lichen planus biopsies. J Oral Microbiol 2021; 13:1905958. [PMID: 33828821 PMCID: PMC8009128 DOI: 10.1080/20002297.2021.1905958] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Oral lichen planus (OLP) is a chronic T cell-mediated inflammatory disease that affects the mucus membrane of the oral cavity. We previously proposed a potential role of intracellular bacteria detected within OLP lesions in the pathogenesis of OLP and isolated four Escherichia coli strains from OLP tissues that were phylogenetically close to K-12 MG1655 strain. We sequenced the genomes of the four OLP-isolated E. coli strains and generated 6.71 Gbp of Illumina MiSeq data (166–195x coverage per strain). The size of the assembled draft genomes was 4.69 Mbp, with a GC content of 50.7%, in which 4360 to 4367 protein-coding sequences per strain were annotated. We also identified 368 virulence factors and 53 antibiotic resistance genes. Comparative genomics revealed that the OLP-isolated strains shared more pangenome orthologous groups with pathogenic strains than did the K-12 MG1655 strain, a derivative of K-12 strain isolated from human feces. Although the OLP-isolated strains did not have the major virulence factors (VFs) of the pathogenic strains, a number of VFs involved in adherence/invasion, colonization, or systemic infection were identified. The genomic characteristics of E. coli first isolated from the oral cavity would benefit future investigations on the pathogenic potential of these bacteria.
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Affiliation(s)
- Huitae Min
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, Republic of Korea
| | - Keumjin Baek
- Department of Immunology and Molecular Microbiology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Ahreum Lee
- Department of Immunology and Molecular Microbiology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Yeong-Jae Seok
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, Republic of Korea
| | - Youngnim Choi
- Department of Immunology and Molecular Microbiology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
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Villa TG, Sánchez-Pérez Á, Sieiro C. Oral lichen planus: a microbiologist point of view. Int Microbiol 2021; 24:275-289. [PMID: 33751292 PMCID: PMC7943413 DOI: 10.1007/s10123-021-00168-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 02/06/2023]
Abstract
Oral lichen planus (OLP) is a chronic disease of uncertain etiology, although it is generally considered as an immune-mediated disease that affects the mucous membranes and even the skin and nails. Over the years, this disease was attributed to a variety of causes, including different types of microorganisms. This review analyzes the present state of the art of the disease, from a microbiological point of view, while considering whether or not the possibility of a microbial origin for the disease can be supported. From the evidence presented here, OLP should be considered an immunological disease, as it was initially proposed, as opposed to an illness of microbiological origin. The different microorganisms so far described as putative disease-causing agents do not fulfill Koch’s postulates; they are, actually, not the cause, but a result of the disease that provides the right circumstances for microbial colonization. This means that, at this stage, and unless new data becomes available, no microorganism can be envisaged as the causative agent of lichen planus.
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Affiliation(s)
- Tomás G. Villa
- Department of Microbiology, Faculty of Pharmacy, University of Santiago de Compostela, 15706 Santiago de Compostela, EU Spain
| | - Ángeles Sánchez-Pérez
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Camperdown, NSW 2006 Australia
| | - Carmen Sieiro
- Department of Functional Biology and Health Sciences, Microbiology Area, Faculty of Biology, University of Vigo, 36310 Vigo, Pontevedra, EU Spain
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Yoshida H, Imamura Y, Yoshimura H, Kobayashi M. Induction of High Endothelial Venule-like Vessels in Oral and Cutaneous Lichen Planus: A Comparative Study. J Histochem Cytochem 2020; 68:343-350. [PMID: 32391737 DOI: 10.1369/0022155420923272] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Lichen planus (LP) is a chronic inflammatory mucocutaneous disease involving the oral mucosa and skin. Both oral LP (OLP) and cutaneous LP (CLP) are histopathologically characterized by dense subepithelial lymphocyte infiltrates; however, the mechanisms underlying lymphocyte recruitment to sites of LP lesions are not fully understood. Here, we assessed the induction of peripheral lymph node addressin (PNAd)-expressing high endothelial venule (HEV)-like vessels in 19 OLP and 17 CLP cases. To do so, we performed immunohistochemical staining for PNAd and CD34, followed by quantitative analysis. We also conducted triple immunohistochemistry for PNAd and either CD3 and CD20 or CD4 and CD8 to identify the lymphocyte subset preferentially recruited via HEV-like vessels. PNAd-expressing HEV-like vessels were induced in and around lymphocyte aggregates in all cases of OLP and in 10 of 17 CLP cases, and these vessels were more frequently observed in OLP relative to CLP. Although the number of T-cells attached per HEV-like vessel exceeded the number of B-cells in both OLP and CLP, the number of CD4+ T-cells attached was greater than the number of CD8+ T-cells only in OLP. These findings combined suggest that PNAd-expressing HEV-like vessels play a more important role in the pathogenesis of OLP compared with CLP.
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Affiliation(s)
- Hisato Yoshida
- Department of Tumor Pathology, Faculty of Medical Sciences, University of Fukui.,Department of Dentistry and Oral Surgery, Faculty of Medical Sciences, University of Fukui
| | - Yoshiaki Imamura
- Division of Surgical Pathology, University of Fukui Hospital, Eiheiji, Japan
| | - Hitoshi Yoshimura
- Department of Dentistry and Oral Surgery, Faculty of Medical Sciences, University of Fukui
| | - Motohiro Kobayashi
- Department of Tumor Pathology, Faculty of Medical Sciences, University of Fukui
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Minarovits J. Anaerobic bacterial communities associated with oral carcinoma: Intratumoral, surface-biofilm and salivary microbiota. Anaerobe 2020; 68:102300. [PMID: 33246097 DOI: 10.1016/j.anaerobe.2020.102300] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/06/2020] [Accepted: 11/18/2020] [Indexed: 12/12/2022]
Abstract
It was estimated that more than 700 bacterial species inhabit the oral cavity of healthy humans. Anaerobes comprise a significant fraction of the oral bacteriome and play an important role in the formation of multi-species biofilms attached to various anatomical sites. Bacterial biofilms are also associated with pathologic laesions of the oral cavity, including oral squamous cell carcinoma (OSCC), and distinct oral taxa could also be detected within the tumors, i.e. in deep biopsy samples. These observations suggested that certain oral bacteria or oral bacterial communities may play a causative role in oral carcinogenesis, in addition to the well characterized risk factors of oral cancer. Alternatively, it was also proposed that a subset of oral bacteria may have a growth advantage in the unique microenvironment of OSCC. Recently, a series of studies analysed the OSCC-associated bacterial communities using metataxonomic, metagenomic and metatranscriptomic approaches. This review outlines the major differences between the community structure of microbiota in tumor biopsy, surface-biofilm and salivary or oral wash samples collected from OSCC patients, compared to corresponding samples from control persons. A special emphasis is given to the anaerobic bacteria Fusobacterium nucleatum and Fusobacterium periodonticum that were characterised repeatedly as "OSCC-associated" in independent studies. Predicted microbial functions and relevant in vivo experimental models of oral carcinogenesis will also be summarized.
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Affiliation(s)
- Janos Minarovits
- University of Szeged, Faculty of Dentistry, Department of Oral Biology and Experimental Dental Research, H-6720 Szeged, Tisza Lajos krt. 64 Hungary.
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The Role of the Microbiome in Oral Squamous Cell Carcinoma with Insight into the Microbiome-Treatment Axis. Int J Mol Sci 2020; 21:ijms21218061. [PMID: 33137960 PMCID: PMC7662318 DOI: 10.3390/ijms21218061] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/06/2020] [Accepted: 10/12/2020] [Indexed: 12/24/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) is one of the leading presentations of head and neck cancer (HNC). The first part of this review will describe the highlights of the oral microbiome in health and normal development while demonstrating how both the oral and gut microbiome can map OSCC development, progression, treatment and the potential side effects associated with its management. We then scope the dynamics of the various microorganisms of the oral cavity, including bacteria, mycoplasma, fungi, archaea and viruses, and describe the characteristic roles they may play in OSCC development. We also highlight how the human immunodeficiency viruses (HIV) may impinge on the host microbiome and increase the burden of oral premalignant lesions and OSCC in patients with HIV. Finally, we summarise current insights into the microbiome–treatment axis pertaining to OSCC, and show how the microbiome is affected by radiotherapy, chemotherapy, immunotherapy and also how these therapies are affected by the state of the microbiome, potentially determining the success or failure of some of these treatments.
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33
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Shao S, Tsoi LC, Sarkar MK, Xing X, Xue K, Uppala R, Berthier CC, Zeng C, Patrick M, Billi AC, Fullmer J, Beamer MA, Perez-White B, Getsios S, Schuler A, Voorhees JJ, Choi S, Harms P, Kahlenberg JM, Gudjonsson JE. IFN-γ enhances cell-mediated cytotoxicity against keratinocytes via JAK2/STAT1 in lichen planus. Sci Transl Med 2020; 11:11/511/eaav7561. [PMID: 31554739 DOI: 10.1126/scitranslmed.aav7561] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 01/31/2019] [Accepted: 08/02/2019] [Indexed: 12/20/2022]
Abstract
Lichen planus (LP) is a chronic debilitating inflammatory disease of unknown etiology affecting the skin, nails, and mucosa with no current FDA-approved treatments. It is histologically characterized by dense infiltration of T cells and epidermal keratinocyte apoptosis. Using global transcriptomic profiling of patient skin samples, we demonstrate that LP is characterized by a type II interferon (IFN) inflammatory response. The type II IFN, IFN-γ, is demonstrated to prime keratinocytes and increase their susceptibility to CD8+ T cell-mediated cytotoxic responses through MHC class I induction in a coculture model. We show that this process is dependent on Janus kinase 2 (JAK2) and signal transducer and activator of transcription 1 (STAT1), but not JAK1 or STAT2 signaling. Last, using drug prediction algorithms, we identify JAK inhibitors as promising therapeutic agents in LP and demonstrate that the JAK1/2 inhibitor baricitinib fully protects keratinocytes against cell-mediated cytotoxic responses in vitro. In summary, this work elucidates the role and mechanisms of IFN-γ in LP pathogenesis and provides evidence for the therapeutic use of JAK inhibitors to limit cell-mediated cytotoxicity in patients with LP.
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Affiliation(s)
- Shuai Shao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China.,Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Lam C Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Mrinal K Sarkar
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Xianying Xing
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ke Xue
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China
| | - Ranjitha Uppala
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Celine C Berthier
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Chang Zeng
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Matthew Patrick
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Allison C Billi
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Joseph Fullmer
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Maria A Beamer
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Spiro Getsios
- Department of Dermatology, Northwestern University, Chicago, IL 60611, USA
| | - Andrew Schuler
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - John J Voorhees
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Sung Choi
- Pediatric Hematology/Oncology, Mott Children's Hospital, University of Michigan, Ann Arbor, MI 48109, USA
| | - Paul Harms
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA.,Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - J Michelle Kahlenberg
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Johann E Gudjonsson
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA.
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Xia DN, Tan YQ, Yang JY, Zhou G. Omega-3 polyunsaturated fatty acids: a promising approach for the management of oral lichen planus. Inflamm Res 2020; 69:989-999. [PMID: 32770320 DOI: 10.1007/s00011-020-01388-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/26/2020] [Accepted: 07/29/2020] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Oral lichen planus (OLP) is a T-cell-mediated inflammatory disease with a risk of malignant transformation. Although the etiology of OLP is still uncertain, growing evidence suggests that oral microbiota, antigen-specific, and non-specific mechanisms are involved in the pathogenesis of OLP. Antigen-specific mechanisms include antigen presentation, T-cell activation, nuclear factor-kappa B signaling pathway, and cytokine secretion, while non-specific mechanisms consist of matrix metalloproteinases (MMP)-9 upregulation, psychological pressure, oxidative damage, aberrant expression of microRNAs (miRNAs), and autophagy. Till now, there is no cure for OLP, and the main purpose of OLP therapy is symptomatic control. FINDING Seafood and its derivative omega-3 polyunsaturated fatty acids (n-3 PUFAs) can suppress antigen presentation, T-cell activation, and nuclear factor-kappa B signaling pathway, modulate the overexpressed inflammatory cytokines, inhibit the expression of MMP-9, as well as regulate the expression of miRNAs and autophagy. And they are possible agents for ameliorating psychological disorder and oxidative damage. Moreover, n-3 PUFAs supplementation has a beneficial effect on preventing tumorigenesis. CONCLUSION n-3 PUFAs consumption may provide a non-toxic, inexpensive administration for OLP.
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Affiliation(s)
- Duo-Na Xia
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Luoyu Road 237, 430070, Wuhan, China
| | - Ya-Qin Tan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Luoyu Road 237, 430070, Wuhan, China
| | - Jing-Ya Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Luoyu Road 237, 430070, Wuhan, China
| | - Gang Zhou
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Luoyu Road 237, 430070, Wuhan, China. .,Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
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Ioannides D, Vakirlis E, Kemeny L, Marinovic B, Massone C, Murphy R, Nast A, Ronnevig J, Ruzicka T, Cooper S, Trüeb R, Pujol Vallverdú R, Wolf R, Neumann M. European S1 guidelines on the management of lichen planus: a cooperation of the European Dermatology Forum with the European Academy of Dermatology and Venereology. J Eur Acad Dermatol Venereol 2020; 34:1403-1414. [DOI: 10.1111/jdv.16464] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/31/2020] [Indexed: 12/15/2022]
Affiliation(s)
- D. Ioannides
- Department of Dermatology and Venereology Aristotle University of Thessaloniki Medical School Thessaloniki Greece
| | - E. Vakirlis
- Department of Dermatology and Venereology Aristotle University of Thessaloniki Medical School Thessaloniki Greece
| | - L. Kemeny
- Department of Dermatology and Allergology University of Szeged Szeged Hungary
| | - B. Marinovic
- Department of Dermatology and Venereology University Hospital Center and School of Medicine Zagreb Zagreb Croatia
| | - C. Massone
- Department of Dermatology Medical University of Graz Graz Austria
| | - R. Murphy
- Department of Dermatology Nottingham University Hospital Nottingham UK
| | - A. Nast
- Department of Dermatology, Venereology and Allergy Division of Evidence‐Based Medicine Charité ‐ Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin and Berlin Institute of Health Berlin Germany
| | | | - T. Ruzicka
- Department of Dermatology and Allergology LMU Munich Germany
| | - S.M. Cooper
- Department of Dermatology Oxford University Hospitals NHS Trust and University of Oxford Oxford UK
| | - R.M. Trüeb
- Center for Dermatology and Hair Diseases Wallisellen Switzerland
| | | | - R. Wolf
- Department of Dermatology and Allergology LMU Munich Germany
| | - M. Neumann
- Department of Dermatology Erasmus MC Rotterdam The Netherlands
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Volokhov DV, Blom J, Amselle M, Delmonte P, Gao Y, Shen Z, Zhang S, Gulland FM, Chizhikov VE, Eisenberg T. Oceanivirga miroungae sp. nov., isolated from oral cavity of northern elephant seal ( Mirounga angustirostris). Int J Syst Evol Microbiol 2020; 70:3037-3048. [PMID: 32223835 DOI: 10.1099/ijsem.0.004127] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Two independent strains of a Leptotrichia species (ES3154-GLUT and ES2714_GLU) were isolated from the oral cavity of northern elephant seals (Mirounga angustirostris) that were admitted to The Marine Mammal Centre facilities in California, USA. The strains were isolated from oral swabs by cultivation in PPLO broth supplemented with serum, penicillin and colistin in anaerobic conditions. The strains were Gram-negative, pleomorphic, indole-, oxidase- and catalase-negative, non-spore-forming, non-motile rods/coccobacilli in short chains. The 16S rRNA gene sequence of these strains shared 94.42 % nucleotide similarity with Oceanivirga salmonicida AVG 2115T but demonstrated ≤86.00-92.50 % nucleotide similarity to the 16S rRNA genes of other species of the family Leptotrichiaceae. The genome was sequenced for strain ES3154-GLUT. Average nucleotide identity values between strain ES3154-GLUT and 15 type strain genomes from the family Leptotrichiaceae ranged from 66.74 % vs. Sebaldella termitidis to 73.35 % vs. O. salmonicida. The whole genome phylogeny revealed that the novel species was most closely related to O. salmonicida AVG 2115T. This relationship was also confirmed by nucleotide similarity and multilocus phylogenetic analyses employing various housekeeping genes (partial 23S rRNA, rpoB, rpoC, rpoD, polC, adh, gyrA and gyrB genes). Chemotaxonomic and phenotypical features of strain ES3154-GLUT were in congruence with closely related members of the family Leptotrichiaceae, represented by similar enzyme profiles and fatty acid patterns. MALDI-TOF MS analysis was capable to clearly discriminate strain ES3154-GLUT from all currently described taxa of the family Leptotrichiaceae. Based on these data, we propose a novel species of the genus Oceanivirga, for which the name Oceanivirga miroungae sp. nov. is proposed with the type strain ES3154-GLUT (=DSM 109740T=CCUG 73653T=ATCC TSD-189T=NCTC 14411T) and one representative strain ES2714_GLU. The G+C content is 26.82 %, genome size is 1 356 983 bp.
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Affiliation(s)
- Dmitriy V Volokhov
- Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus-Liebig-University Giessen, Heinrich Buff Ring 58, 35392, Giessen, Germany
| | - Megan Amselle
- American Type Culture Collection (ATCC), 10801 University Blvd., Manassas, VA 20110, USA
| | - Pierluigi Delmonte
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, 5001 Campus Dr., College Park, MD 20740, USA
| | - Yamei Gao
- Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
| | - Zhenyu Shen
- Department of Veterinary Pathobiology, Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, 901 East Campus Loop, Columbia, MO 65211, USA
| | - Shuping Zhang
- Department of Veterinary Pathobiology, Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, 901 East Campus Loop, Columbia, MO 65211, USA
| | - Frances M Gulland
- Wildlife Health Center, University of California, 1089 Veterinary Medicine Dr., Davis, CA 95616, USA
| | - Vladimir E Chizhikov
- Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
| | - Tobias Eisenberg
- Hessian State Laboratory (LHL), Department of Veterinary Medicine, Schubertstrasse 60, 35392, Giessen, Germany
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Hijazi K, Morrison RW, Mukhopadhya I, Martin B, Gemmell M, Shaw S, Santoro F. Oral bacterial diversity is inversely correlated with mucosal inflammation. Oral Dis 2020; 26:1566-1575. [PMID: 32419230 DOI: 10.1111/odi.13420] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/21/2020] [Accepted: 05/07/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE We investigated the relationship amongst the oral mucosal bacterial community, clinical severity and inflammatory markers in the two most common immune-mediated oral mucosal diseases, namely recurrent aphthous stomatitis (RAS) and oral lichen planus (LP). METHODS Patients with RAS (n = 15) and LP (n = 18) and healthy controls (n = 13) were recruited using criteria to reduce the effect of factors that influence the microbiota structure independently of oral mucosal disease. Clinical severity was quantified using validated scoring methods. DNA was extracted from oral mucosal swabs for 16S rRNA gene high-throughput sequencing. Salivary cytokines were measured using cytometric bead assays. Correlation studies were conducted amongst microbial diversity, clinical scores and cytokine concentrations. RESULTS We observed a significant reduction of bacterial diversity in LP and RAS patients compared to controls (p = .021 and .044, respectively). Reduced bacterial diversity in LP and RAS correlated with increased clinical scores of the two conditions (⍴ = -0.551 to -0.714). A negative correlation was observed between microbial diversity and salivary interferon-γ, interleukin-17A and interleukin-1β (⍴ = -0.325 to -0.449). CONCLUSIONS This study reports reduced oral microbial diversity in the context of increased mucosal inflammation and supports the role for microbial diversity as a marker or contributor to oral mucosal inflammatory disease activity and development.
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Affiliation(s)
- Karolin Hijazi
- Institute of Dentistry, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen, UK
| | | | - Indrani Mukhopadhya
- Institute of Dentistry, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen, UK
| | - Brennan Martin
- Institute of Dentistry, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen, UK
| | - Matthew Gemmell
- Institute of Dentistry, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen, UK
| | - Sophie Shaw
- Institute of Dentistry, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen, UK
| | - Francesco Santoro
- Laboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
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38
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Wang X, Zhao Z, Tang N, Zhao Y, Xu J, Li L, Qian L, Zhang J, Fan Y. Microbial Community Analysis of Saliva and Biopsies in Patients With Oral Lichen Planus. Front Microbiol 2020; 11:629. [PMID: 32435231 PMCID: PMC7219021 DOI: 10.3389/fmicb.2020.00629] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 03/20/2020] [Indexed: 12/25/2022] Open
Abstract
The specific etiology and pathogenesis of oral lichen planus (OLP) remain elusive, and microbial dysbiosis may play an important role in OLP. We evaluated the saliva and tissue bacterial community of patients with OLP and identified the colonization of bacteria in OLP tissues. The saliva (n = 60) and tissue (n = 24) samples from OLP patients and the healthy controls were characterized by 16S rDNA gene sequencing and the bacterial signals in OLP tissues were detected by fluorescence in situ hybridization (FISH) targeting the bacterial 16S rDNA gene. Results indicate that the OLP tissue microbiome was different from the microbiota of OLP saliva. Compared with the healthy controls, Capnocytophaga and Gemella were higher in OLP saliva, while Escherichia–Shigella and Megasphaera were higher in OLP tissues, whereas seven taxa, including Carnobacteriaceae, Flavobacteriaceae, and Megasphaera, were enriched in both saliva and tissues of OLP patients. Furthermore, FISH found that the average optical density (AOD) of bacteria in the lamina propria of OLP tissues was higher than that of the healthy controls, and the AOD of bacteria in OLP epithelium and lamina propria was positively correlated. These data provide a different perspective for future investigation on the OLP microbiome.
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Affiliation(s)
- Xuewei Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral Medicine, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Zhibai Zhao
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral Medicine, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Nan Tang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral Medicine, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Yuping Zhao
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral Medicine, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Juanyong Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral Medicine, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Liuyang Li
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral Medicine, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Ling Qian
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral Medicine, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Junfeng Zhang
- Medical School, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yuan Fan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral Medicine, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
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Association of HSV-1 and Reduced Oral Bacteriota Diversity with Chemotherapy-Induced Oral Mucositis in Patients Undergoing Autologous Hematopoietic Stem Cell Transplantation. J Clin Med 2020; 9:jcm9041090. [PMID: 32290456 PMCID: PMC7230275 DOI: 10.3390/jcm9041090] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/03/2020] [Accepted: 04/09/2020] [Indexed: 01/04/2023] Open
Abstract
Oral mucositis (OM) is a common complication of chemotherapy and remains a significant unmet need. The aim of this study was to investigate the role of oral bacteriota and HSV-1 in OM. Forty-six patients admitted for autologous hematopoietic stem cell transplantation were longitudinally evaluated for OM, Candida, HSV-1, and leukocyte count, and buccal mucosal bacterial samples were obtained during their admission period. The bacterial communities collected at the baseline and post-chemotherapy, chosen from the time with the highest severity, were analyzed by sequencing the 16S rRNA gene. Twenty (43.5%) patients developed OM, the severity of which ranged from 1 to 5 according to the Oral Mucositis Assessment Scale (OMAS). Chemotherapy significantly increased the prevalence of HSV-1 detection but not that of Candida. The bacterial communities of patients after conditioning chemotherapy were characterized by aberrant enrichment of minor species and decreased evenness and Shannon diversity. After adjustment for age, gender, and neutropenia, the presence of HSV-1 was associated with the incidence of OM (odds ratio = 3.668, p = 0.004), while the decrease in Shannon diversity was associated with the severity of OM (β = 0.533 ± 0.220, p = 0.015). The control of HSV-1 and restoration of oral bacterial diversity may be a novel option to treat or prevent OM.
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40
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Characterization of intratissue bacterial communities and isolation of Escherichia coli from oral lichen planus lesions. Sci Rep 2020; 10:3495. [PMID: 32103089 PMCID: PMC7044275 DOI: 10.1038/s41598-020-60449-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 02/12/2020] [Indexed: 12/20/2022] Open
Abstract
Oral lichen planus (OLP) is a chronic T cell-mediated inflammatory disease of unknown etiology. We previously proposed that the intracellular bacteria detected in OLP lesions are important triggering factors for T cell infiltration. This study aimed to identify OLP-associated bacterial species through the characterization of intratissue bacterial communities of OLP lesions. Seven pairs of bacterial communities collected from the mucosal surface and biopsied tissues of OLP lesions were analyzed by high-throughput sequencing of the 16S rRNA gene. The intratissue bacterial communities were characterized by decreased alpha diversity but increased beta diversity compared with those on the mucosal surface. While the relative abundance of most taxa was decreased within the tissues, that of Escherichia coli was significantly increased. Four E. coli strains were isolated from additional OLP biopsies and verified as K12 strains by whole-genome sequencing. The distribution of E. coli in sections of control (n = 12) and OLP (n = 22) tissues was examined by in situ hybridization. E. coli was detected in most OLP tissues, suggesting its potential role in the pathogenesis of OLP. The oral E. coli strains isolated from OLP tissues will be useful to investigate their role as triggering factors for T cell infiltration.
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41
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Ahn MY, Kang JK, Kwon SM, Yoon HE, Yoon JH. Expression of nucleotide-binding oligomerization domain 1 and 2 in oral lichen planus. J Dent Sci 2020; 15:1-8. [PMID: 32256993 PMCID: PMC7109494 DOI: 10.1016/j.jds.2019.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 11/28/2019] [Indexed: 11/16/2022] Open
Abstract
Background/purpose Oral lichen planus (OLP) is a chronic inflammatory disease of oral mucosa. The present study investigated the expression of nucleotide-binding oligomerization domain (NOD), a pivotal sensor protein of the innate immune system, in OLP. Materials and methods Oral mucosal biopsies were collected from 20 patients with OLP and 6 individuals with normal oral mucosa (NOM). The expression of NOD1 and NOD2 was determined using RT-PCR and immunohistochemistry in OLP and NOM samples. Results The mRNA expression of NOD1 and NOD2 was significantly higher in the OLP group than in the NOM group. The protein expression of NOD1 was marginally upregulated in all mucosal layers in the OLP group compared with that of the NOM group; however, the differences were not significant. The expression of NOD2 was elevated in infiltrating lymphocytes of the submucosal layer in the OLP group compared with the NOM group, but was undetected in other inflammatory disease, inflammatory fibrous hyperplasia (IFH). This study revealed the upregulation of NOD2 mRNA and protein in the OLP group, but not in the NOM group. Conclusion These findings suggest that NOD2 may play an important role in the pathogenesis of OLP and represents a new diagnostic and treatment target.
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Affiliation(s)
- Mee-Young Ahn
- Major in Pharmaceutical Engineering, Division of Bio-industry, College of Medical and Life Sciences, Silla University, Busan, Republic of Korea
| | - Jin-Kyu Kang
- Department of Oral Medicine and Orofacial Pain, College of Dentistry, Daejeon Dental Hospital, Wonkwang University, Daejeon, Republic of Korea
| | - Seong-Min Kwon
- Department of Oral and Maxillofacial Pathology, College of Dentistry, Wonkwang Bone Regeneration Research Institute, Daejeon Dental Hospital, Wonkwang University, Daejeon, Republic of Korea
| | - Hyo-Eun Yoon
- Department of Oral and Maxillofacial Pathology, College of Dentistry, Wonkwang Bone Regeneration Research Institute, Daejeon Dental Hospital, Wonkwang University, Daejeon, Republic of Korea
| | - Jung-Hoon Yoon
- Department of Oral and Maxillofacial Pathology, College of Dentistry, Wonkwang Bone Regeneration Research Institute, Daejeon Dental Hospital, Wonkwang University, Daejeon, Republic of Korea
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Du GH, Wang YF, Chen JJ, Deng YW, Han XZ, Tang GY. Potential association between Fusobacterium nucleatum enrichment on oral mucosal surface and oral lichen planus. Oral Dis 2019; 26:122-130. [PMID: 31710746 DOI: 10.1111/odi.13232] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 09/30/2019] [Accepted: 11/06/2019] [Indexed: 01/19/2023]
Abstract
OBJECTIVE We determined the bacterial community structure of the buccal mucosa in patients with oral lichen planus (OLP) and evaluated the potential association of Fusobacterium nucleatum with OLP. SUBJECTS AND METHODS We collected buccal mucosal swab samples of patients with OLP (n = 20) and healthy controls (n = 10) and performed 16S rRNA gene sequencing and real-time PCR to determine potentially different bacteria. Damaged and adjacent non-damaged mucosal swab samples of 25 OLP patients were used to detect the amount of F. nucleatum by real-time PCR. RESULTS Compared with healthy controls, enrichment of Fusobacterium and Granulicatella was more abundant in patients with OLP (p = .0146 and 0.0034). The abundance of Fusobacterium and F. nucleatum was significantly enriched on buccal mucosa of patients with OLP compared with healthy controls (p = .0043 and 0.0235). Compared with adjacent non-damaged buccal mucosa of OLP patients, the amount of F. nucleatum in the damaged mucosa was significantly increased (p = .001). We examined third-level KEGG pathways for bacteria on mucosal surface and found that genes controlling sporulation and ether lipid metabolism were enriched in patients with OLP. CONCLUSIONS A high amount of F. nucleatum may be associated with OLP. Further studies are required to investigate the precise association of F. nucleatum with OLP.
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Affiliation(s)
- Guan-Huan Du
- Department of Oral Medicine, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu-Feng Wang
- Department of Oral Medicine, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun-Jun Chen
- Department of Oral Medicine, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi-Wen Deng
- Department of Oral Medicine, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Zhe Han
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA.,Harvard School of Dental Medicine, Department of Oral Medicine, Infection and Immunity, Boston, MA
| | - Guo-Yao Tang
- Department of Oral Medicine, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Salivary mycobiome dysbiosis and its potential impact on bacteriome shifts and host immunity in oral lichen planus. Int J Oral Sci 2019; 11:13. [PMID: 31263096 PMCID: PMC6802619 DOI: 10.1038/s41368-019-0045-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 12/19/2018] [Accepted: 01/16/2019] [Indexed: 02/07/2023] Open
Abstract
The biodiversity of the mycobiome, an important component of the oral microbial community, and the roles of fungal–bacterial and fungal–immune system interactions in the pathogenesis of oral lichen planus (OLP) remain largely uncharacterized. In this study, we sequenced the salivary mycobiome and bacteriome associated with OLP. First, we described the dysbiosis of the microbiome in OLP patients, which exhibits lower levels of fungi and higher levels of bacteria. Significantly higher abundances of the fungi Candida and Aspergillus in patients with reticular OLP and of Alternaria and Sclerotiniaceae_unidentified in patients with erosive OLP were observed compared to the healthy controls. Aspergillus was identified as an “OLP-associated” fungus because of its detection at a higher frequency than in the healthy controls. Second, the co-occurrence patterns of the salivary mycobiome–bacteriome demonstrated negative associations between specific fungal and bacterial taxa identified in the healthy controls, which diminished in the reticular OLP group and even became positive in the erosive OLP group. Moreover, the oral cavities of OLP patients were colonized by dysbiotic oral flora with lower ecological network complexity and decreased fungal–Firmicutes and increased fungal–Bacteroidetes sub-networks. Third, several keystone fungal genera (Bovista, Erysiphe, Psathyrella, etc.) demonstrated significant correlations with clinical scores and IL-17 levels. Thus, we established that fungal dysbiosis is associated with the aggravation of OLP. Fungal dysbiosis could alter the salivary bacteriome or may reflect a direct effect of host immunity, which participates in OLP pathogenesis. Imbalance in the oral fungal community could lead to the development of oral lichen planus (OLP), a chronic inflammatory disease that affects the mucous membranes in the mouth. The exact cause of OLP is uncertain, which is a major obstacle to therapeutic development. Using salivary samples, a team headed by Xuedong Zhou at Sichuan University in China investigated the composition and diversity of the fungal community in OLP patients and healthy individuals. The authors found that the oral fungal community was less diverse and that there were higher levels of bacteria in OLP patients. The team concluded that fungal community imbalance could affect the bacterial community in the saliva and the host immunity in the mucous membrane, thereby constituting a direct or indirect cause of the development of OLP.
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44
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Mergoni G, Magnani V, Goldoni M, Vescovi P, Manfredi M. Effects of oral healthcare motivation in patients with gingival oral lichen planus: A randomized controlled trial. Oral Dis 2019; 25:1335-1343. [PMID: 30947385 DOI: 10.1111/odi.13104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/18/2019] [Accepted: 04/01/2019] [Indexed: 01/01/2023]
Abstract
OBJECTIVES The role of dental plaque in gingival lesions caused by oral lichen planus has not been fully defined. The aim of this clinical trial was to evaluate the effects of oral healthcare motivation on clinical variables in patients with gingival oral lichen planus. MATERIAL AND METHODS Oral lichen planus patients with symptomatic gingival lesions were randomized in control and intervention groups. The intervention group was instructed to effectively remove bacterial biofilm from dental surfaces, while controls did not receive any advice. The outcome variables were as follows: quality of life (OHIP-14), pain, plaque index and clinical severity of the disease (Escudier index). Outcome variables were assessed at 0, 4 and 20 weeks and analysed using an ANOVA model for factorial design. RESULTS Data from 60 patients were collected. Regression analysis showed a significant positive trend of OHIP-14, plaque index and Escudier index in the intervention group compared to controls (p < 0.05). Pain did not prove significantly different (p = 0.408). CONCLUSIONS Plaque control improved both OHIP-14 and gingival lesion clinical severity. Oral hygienists should be involved in the multidisciplinary management of patients affected by oral lichen planus with gingival lesions.
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Affiliation(s)
- Giovanni Mergoni
- Dipartimento di Medicina e Chirurgia, Centro Universitario di Odontoiatria, Università di Parma, Parma, Italy
| | - Veronica Magnani
- Dipartimento di Medicina e Chirurgia, Centro Universitario di Odontoiatria, Università di Parma, Parma, Italy
| | - Matteo Goldoni
- Dipartimento di Medicina e Chirurgia, Statistica Medica, Università di Parma, Parma, Italy
| | - Paolo Vescovi
- Dipartimento di Medicina e Chirurgia, Centro Universitario di Odontoiatria, Università di Parma, Parma, Italy
| | - Maddalena Manfredi
- Dipartimento di Medicina e Chirurgia, Centro Universitario di Odontoiatria, Università di Parma, Parma, Italy
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45
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Panta P, Andhavarapu A, Sarode SC, Sarode G, Patil S. Reverse Koebnerization in a linear oral lichenoid lesion: A case report. Clin Pract 2019; 9:1144. [PMID: 31312420 PMCID: PMC6600350 DOI: 10.4081/cp.2019.1144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/19/2019] [Indexed: 11/23/2022] Open
Abstract
The spectacle of Koebner’s phenomenon (KP) is interesting in that trauma precipitates a subset of pathologically distinct conditions, indicating the subtle interplay between sensitization and dermato-mucosal integrity. KP is interesting because, if factors initiating it are controlled, then it may be possible to prevent these debilitating conditions through induction of reverse Koebnerization. Herein, we present a report of a patient with an erosive lesion, localized to the occlusal plane on buccal and lingual mucosa, that interestingly subsided following 1 week after a dental scaling procedure. This report analytically describes the role of dental calculus and cuspal trauma as important triggers surrounding the genesis of oral lichenoid lesion and oral lichen planus. An engaging discussion on these closely related enigmatic entities forms the central theme of this report.
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Affiliation(s)
- Prashanth Panta
- Department of Oral Medicine and Radiology, MNR Dental College and Hospital, Sangareddy, Telangana, India
| | - Archana Andhavarapu
- Department of Pulmonary Medicine, Malla Reddy Medical College for Women, Suraram, Quthubullapur, Hyderabad, Telangana, India
| | - Sachin C Sarode
- Department of Oral Pathology and Microbiology, Dr. D. Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Sant-Tukaramnagar, Pimpri, Pune, Maharashtra, India
| | - Gargi Sarode
- Department of Oral Pathology and Microbiology, Dr. D. Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Sant-Tukaramnagar, Pimpri, Pune, Maharashtra, India
| | - Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of Dentistry, Jazan University, Jazan, Saudi Arabia
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46
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Salem A, Almahmoudi R, Hagström J, Stark H, Nordström D, Salo T, Eklund KK. Human β-Defensin 2 Expression in Oral Epithelium: Potential Therapeutic Targets in Oral Lichen Planus. Int J Mol Sci 2019; 20:ijms20071780. [PMID: 30974892 PMCID: PMC6479702 DOI: 10.3390/ijms20071780] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/02/2019] [Accepted: 04/09/2019] [Indexed: 12/24/2022] Open
Abstract
Human β-defensin 2 (hBD-2) is a potent antimicrobial peptide that participates in defense against invading bacteria. We recently showed that bacterial components and histamine, through histamine H4 receptor (H4R), are involved in the pathogenesis of the potentially malignant lesion, oral lichen planus (OLP). However, the underlying mechanisms remain unknown. We, therefore, investigated the role of hBD2–histamine crosstalk signaling in promoting OLP pathology. Biopsies from OLP and oral tongue squamous cell carcinoma (OTSCC) patients, and healthy controls were used. Two OTSCC cell lines and normal human oral keratinocytes (HOKs) were used. HBD-2 and other targets were mapped by immunostaining and analyzed by ImageJ2 software. The highly sensitive droplet-digital PCR technology and qRT-PCR were utilized to study the clinically derived and in vitro samples, respectively. H4R was challenged with the specific agonist HST-10 and inverse agonist ST-1007. HBD-2 was highly induced in OLP lesions. In contrast, hBD2 expression was attenuated in OTSCC tissues, while very low levels of hBD-2 messenger RNA (mRNA) were observed in OTSCC cells. Together with tumor necrosis factor-α (TNF-α), histamine upregulated hBD-2 mRNA expression in HOKs. Activation of H4R seems to modulate the expression of epithelial hBD-2. These findings suggest the involvement of hBD-2 in the pathogenesis of OLP and may, thus, be harnessed for therapeutic interventions in OLP.
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Affiliation(s)
- Abdelhakim Salem
- Department of Clinical Medicine, Clinicum, University of Helsinki, 00014 Helsinki, Finland.
- Translational Immunology Research Program, University of Helsinki, 00014 Helsinki, Finland.
- Department of Oral and Maxillofacial Diseases, Clinicum, University of Helsinki, 00014 Helsinki, Finland.
| | - Rabeia Almahmoudi
- Department of Oral and Maxillofacial Diseases, Clinicum, University of Helsinki, 00014 Helsinki, Finland.
| | - Jaana Hagström
- Department of Pathology, Helsinki University Hospital, Helsinki, Finland and Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland.
| | - Holger Stark
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany.
| | - Dan Nordström
- Department of Internal Medicine, Helsinki University and Helsinki Hospital, 00014 Helsinki, Finland.
| | - Tuula Salo
- Translational Immunology Research Program, University of Helsinki, 00014 Helsinki, Finland.
- Department of Oral and Maxillofacial Diseases, Clinicum, University of Helsinki, 00014 Helsinki, Finland.
- Medical Research Centre, Oulu University Hospital, 90220 Oulu, Finland.
- Cancer and Translational Medicine Research Unit, University of Oulu, FI-90014 Oulu, Finland.
| | - Kari K Eklund
- Translational Immunology Research Program, University of Helsinki, 00014 Helsinki, Finland.
- Department of Internal Medicine, Helsinki University and Helsinki Hospital, 00014 Helsinki, Finland.
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, and Orton Orthopedic Hospital and Research Institute, 00014 Helsinki, Finland.
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47
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Ge X, Wang L, Li M, Xu N, Yu F, Yang F, Li R, Zhang F, Zhao B, Du J. Vitamin D/VDR signaling inhibits LPS-induced IFNγ and IL-1β in Oral epithelia by regulating hypoxia-inducible factor-1α signaling pathway. Cell Commun Signal 2019; 17:18. [PMID: 30813930 PMCID: PMC6391768 DOI: 10.1186/s12964-019-0331-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 02/20/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Oral lichen planus (OLP) is known as a chronic inflammatory disease. Our recent studies have suggested that vitamin D/vitamin D receptor (VDR) signaling exerts its protective effects on oral keratinocyte apoptosis by regulating microRNA-802 and p53-upregulated modulator of apoptosis (PUMA), but its roles in oral epithelial inflammatory responses in OLP are still unknown. Herein, we identify lipopolysaccharide (LPS) is able to enhance interferon gamma (IFNγ) and interleukin-1 beta (IL-1β) productions in human oral keratinocytes (HOKs) dependent on hypoxia-inducible factor-1α (HIF-1α). METHODS HIF-1α and cytokines levels in HOKs were investigated by real-time PCR and western blotting after LPS challenge. The effects of 1,25(OH)2D3 on LPS-induced HIF-1α and cytokines were tested by real-time PCR, western blotting, siRNA-interference and plasmids transfection techniques. The roles of 1,25(OH)2D3 in regulating HIF-1α levels were investigated using western blotting, siRNA-interference, plasmids transfection and Chromatin Immunoprecipitation (ChIP) assays. Finally, HIF-1α, IFNγ and IL-1β expressions in oral epithelia derived from mice and individuals were measured by real-time PCR, western blotting and immunohistochemical staining. RESULTS As a critical regulator, vitamin D suppresses LPS-induced HIF-1α to block IFNγ and IL-1β productions. Mechanistically, vitamin D inactivates nuclear factor-κB (NF-κB) pathway and up-regulates von Hippel-Lindau (VHL) levels, leading to HIF-1α reduction. Moreover, HIF-1α status of oral epithelia is elevated in VDR-/- mie as well as in VDR-deficient human biopsies, accompanied with increased IFNγ and IL-1β. CONCLUSION Collectively, this study uncovers an unrecognized roles of vitamin D/VDR signaling in regulating cytokines in oral keratinocytes and reveals the molecular basis of it.
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Affiliation(s)
- Xuejun Ge
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Lixiang Wang
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Mengdi Li
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Na Xu
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Feiyan Yu
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Fang Yang
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Ran Li
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Fang Zhang
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Bin Zhao
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Jie Du
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China. .,Institute of Biomedical Research, Shanxi Medical University, Taiyuan, Shanxi, China.
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48
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Choi YS, Baek K, Choi Y. Estrogen reinforces barrier formation and protects against tumor necrosis factor alpha-induced barrier dysfunction in oral epithelial cells. J Periodontal Implant Sci 2018; 48:284-294. [PMID: 30405936 PMCID: PMC6207799 DOI: 10.5051/jpis.2018.48.5.284] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 08/21/2018] [Indexed: 12/19/2022] Open
Abstract
Purpose Epithelial barrier dysfunction is involved in the pathophysiology of periodontitis and oral lichen planus. Estrogens have been shown to enhance the physical barrier function of intestinal and esophageal epithelia, and we aimed to investigate the effect of estradiol (E2) on the regulation of physical barrier and tight junction (TJ) proteins in human oral epithelial cell monolayers. Methods HOK-16B cell monolayers cultured on transwells were treated with E2, an estrogen receptor (ER) antagonist (ICI 182,780), tumor necrosis factor alpha (TNFα), or dexamethasone (Dexa), and the transepithelial electrical resistance (TER) was then measured. Cell proliferation was measured by the cell counting kit (CCK)-8 assay. The levels of TJ proteins and nuclear translocation of nuclear factor (NF)-κB were examined by confocal microscopy. Results E2 treatment increased the TER and the levels of junctional adhesion molecule (JAM)-A and zonula occludens (ZO)-1 in a dose-dependent manner, without affecting cell proliferation during barrier formation. Treatment of the tight-junctioned cell monolayers with TNFα induced decreases in the TER and the levels of ZO-1 and nuclear translocation of NF-κB. These TNFα-induced changes were inhibited by E2, and this effect was completely reversed by co-treatment with ICI 182,780. Furthermore, E2 and Dexa presented an additive effect on the epithelial barrier function. Conclusions E2 reinforces the physical barrier of oral epithelial cells through the nuclear ER-dependent upregulation of TJ proteins. The protective effect of E2 on the TNFα-induced impairment of the epithelial barrier and its additive effect with Dexa suggest its potential use to treat oral inflammatory diseases involving epithelial barrier dysfunction.
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Affiliation(s)
- Yun Sik Choi
- Department of Oral Microbiology and Immunology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
| | - Keumjin Baek
- Department of Oral Microbiology and Immunology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
| | - Youngnim Choi
- Department of Oral Microbiology and Immunology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
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49
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Kragelund C, Keller MK. The oral microbiome in oral lichen planus during a 1-year randomized clinical trial. Oral Dis 2018; 25:327-338. [PMID: 30144242 DOI: 10.1111/odi.12961] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 05/30/2018] [Accepted: 08/18/2018] [Indexed: 12/23/2022]
Abstract
BACKGROUND Several recent studies have investigated the oral bacteriome in oral lichen planus (OLP), but longitudinal changes in microbiome have not been investigated. OBJECTIVE To study the bacteriome and mycobiome in OLP over a 1-year period and the impact of topical treatment. MATERIAL AND METHODS Samples from 22 symptomatic OLP patients from a double-blinded, randomized intervention study were collected over a 1-year course at five visits. Bacterial and fungal abundances were investigated through lesional cytobrush (CB) and full mouthwash (MW). Initially, all patients received conventional (antimycotic or steroid) and probiotic or placebo treatment. RESULTS The microbial composition differed between the MW and CB samples. During the study period, the microbial composition was individual, with pronounced variability between visits. Patients grouped according to initial conventional treatment. During the study period, unidirectional change in the bacteriome was seen in the antimycotic group, whereas the mycobiome was stable. Malassezia restricta was the most abundant fungus. CONCLUSIONS The microbial composition of MW and CB differs in OLP. CB composition is less influenced by conventional and probiotic intervention. Initial antimycotic treatment influenced the bacteriome during the 1-year period. How the oral microbiome in health and disease is influenced by individual variability of fungi and bacteria, and Malassezia needs further investigation.
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Affiliation(s)
- Camilla Kragelund
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mette Kirstine Keller
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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50
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Zhao B, Xu N, Li R, Yu F, Zhang F, Yang F, Ge X, Li YC, Du J. Vitamin D/VDR signaling suppresses microRNA-802-induced apoptosis of keratinocytes in oral lichen planus. FASEB J 2018; 33:1042-1050. [PMID: 30074824 DOI: 10.1096/fj.201801020rrr] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Vitamin D is known to play a protective role in inflammatory diseases. Although the suppressive effect of vitamin D/vitamin D receptor (VDR) signaling has been shown in the context of oral lichen planus (OLP), the molecular basis of its regulatory function remains poorly understood. Herein, we reported that miR-802 overexpression in OLP could aggravate apoptosis of oral keratinocytes by targeting B-cell lymphoma 2 mRNA. In addition, vitamin D/VDR signaling was able to suppress miR-802 expression in LPS-treated or activated CD4+ T cell-stimulated human oral keratinocytes by blocking NF-κB pathways, thereby inhibiting OLP apoptosis. Consistent with the results in vitro, we showed that miR-802 expression was enhanced in oral keratinocytes from VDR-/- mice, and an inverse correlation between VDR and miR-802 was found in human biopsy specimens of OLP. Collectively, our data suggest that vitamin D/VDR signaling suppresses oral keratinocyte apoptosis by targeting miR-802.-Zhao, B., Xu, N., Li, R., Yu, F., Zhang, F., Yang, F., Ge, X., Li, Y. C., Du, J. Vitamin D/VDR signaling suppresses microRNA-802-induced apoptosis of keratinocytes in oral lichen planus.
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Affiliation(s)
- Bin Zhao
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, China; and
| | - Na Xu
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, China; and
| | - Ran Li
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, China; and
| | - Feiyan Yu
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, China; and
| | - Fang Zhang
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, China; and
| | - Fang Yang
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, China; and
| | - Xuejun Ge
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, China; and
| | - Yan Chun Li
- Division of Biological Sciences, Department of Medicine, The University of Chicago, Chicago, Illinois, USA
| | - Jie Du
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, China; and.,Division of Biological Sciences, Department of Medicine, The University of Chicago, Chicago, Illinois, USA
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