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Uppal S, Kumar Shrivastava P, Khan A, Sharma A, Kumar Shrivastav A. Machine learning methods in predicting the risk of malignant transformation of oral potentially malignant disorders: A systematic review. Int J Med Inform 2024; 186:105421. [PMID: 38552265 DOI: 10.1016/j.ijmedinf.2024.105421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 03/18/2024] [Accepted: 03/19/2024] [Indexed: 04/22/2024]
Abstract
BACKGROUND Oral Potentially Malignant Disorders (OPMDs) refer to a heterogenous group of clinical presentations with heightened rate of malignant transformation. Identification of risk levels in OPMDs is crucial to determine the need for active intervention in high-risk patients and routine follow-up in low-risk ones. Machine learning models has shown tremendous potential in several areas of dentistry that strongly suggest its application to estimate rate of malignant transformation of precancerous lesions. METHODS A comprehensive literature search was performed on Pubmed/MEDLINE, Web of Science, Scopus, Embase, Cochrane Library database to identify articles including machine learning models and algorithms to predict malignant transformation in OPMDs. Relevant bibliographic data, study characteristics, and outcomes were extracted for eligible studies. Quality of the included studies was assessed through the IJMEDI checklist. RESULTS Fifteen articles were found suitable for the review as per the PECOS criteria. Amongst all studies, highest sensitivity (100%) was recorded for U-net architecture, Peaks Random forest model, and Partial least squares discriminant analysis (PLSDA). Highest specificity (100%) was noted for PLSDA. Range of overall accuracy in risk prediction was between 95.4% and 74%. CONCLUSION Machine learning proved to be a viable tool in risk prediction, demonstrating heightened sensitivity, automation, and improved accuracy for predicting transformation of OPMDs. It presents an effective approach for incorporating multiple variables to monitor the progression of OPMDs and predict their malignant potential. However, its sensitivity to dataset characteristics necessitates the optimization of input parameters to maximize the efficiency of the classifiers.
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Affiliation(s)
- Simran Uppal
- Faculty of Dentistry, Jamia Millia Islamia, New Delhi, India.
| | | | - Atiya Khan
- Faculty of Dentistry, Jamia Millia Islamia, New Delhi, India.
| | - Aditi Sharma
- Faculty of Dentistry, Jamia Millia Islamia, New Delhi, India.
| | - Ayush Kumar Shrivastav
- Computer Science and Engineering, Centre for Development of Advanced Computing, Noida, Uttar Pradesh, India.
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Pignatelli P, Curia MC, Tenore G, Bondi D, Piattelli A, Romeo U. Oral bacteriome and oral potentially malignant disorders: A systematic review of the associations. Arch Oral Biol 2024; 160:105891. [PMID: 38295615 DOI: 10.1016/j.archoralbio.2024.105891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 02/02/2024]
Abstract
INTRODUCTION Periodontal bacteria can infiltrate the epithelium, activate signaling pathways, induce inflammation, and block natural killer and cytotoxic cells, all of which contribute to the vicious circle of carcinogenesis. It is unknown whether oral dysbiosis has an impact on the etiology or prognosis of OPMD. AIMS Within this paradigm, this work systemically investigated and reported on the composition of oral microbiota in patients with oral potentially malignant disorders (OPMD) versus healthy controls. METHODS Observational studies that reported next generation sequencing analysis of oral tissue or salivary samples and found at least three bacterial species were included. Identification, screening, citation analysis, and graphical synthesis were carried out. RESULTS For oral lichen planus (OLP), the bacteria with the highest abundance were Fusobacterium, Capnocytophaga, Gemella, Granulicatella, Porphyromonas, and Rothia; for oral leukoplakia (OLK), Prevotella. Streptococci levels in OLK and OLP were lower. The usage of alcohol or smoke had no effect on the outcomes. CONCLUSIONS An increase in periodontal pathogenic bacteria could promote the development and exacerbation of lichen. Effective bacteriome-based biomarkers are worthy of further investigation and application, as are bacteriome-based treatments.
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Affiliation(s)
- Pamela Pignatelli
- COMDINAV DUE, Nave Cavour, Italian Navy, Stazione Navale Mar Grande, Viale Ionio, 74122 Taranto, Italy.
| | - Maria Cristina Curia
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via dei Vestini, 66100 Chieti, Italy
| | - Gianluca Tenore
- Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, Via Caserta, 00161 Rome, Italy
| | - Danilo Bondi
- Department of Neuroscience, Imaging and Clinical Sciences, "G. d'Annunzio" University of Chieti-Pescara, Via dei Vestini, 66100 Chieti, Italy
| | - Adriano Piattelli
- School of Dentistry, Saint Camillus International University for Health Sciences, 00131 Rome, Italy; Facultad de Medicina, UCAM Universidad Católica San Antonio de Murcia, Guadalupe, 30107 Murcia, Spain
| | - Umberto Romeo
- Department of Oral Sciences and Maxillofacial Surgery, Sapienza University of Rome, Via Caserta, 00161 Rome, Italy
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Sari EF, Johnson NW, McCullough MJ, Cirillo N. Prevalence and risk factors of oral potentially malignant disorders in Indonesia: a cross-sectional study undertaken in 5 provinces. Sci Rep 2024; 14:5232. [PMID: 38433259 PMCID: PMC10909850 DOI: 10.1038/s41598-024-54410-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 02/12/2024] [Indexed: 03/05/2024] Open
Abstract
Detection of subjects with oral potentially malignant disorders in a population is key to early detection of oral cancer (OC) with consequent reduction of cancer-related morbidity and mortality. Our aim was to investigate the prevalence and associated risk factors for OPMD in representative provinces of Indonesia. This cross-sectional study was undertaken in five Indonesian provinces: West Java (WJ), Jakarta (JKT), West Papua (WP), West Kalimantan (WK) and Banda Aceh (BA). Respondents answered a previously validated questionnaire including information on ethnicity, occupation, socioeconomic status (SES), oral health practices, and behaviours associated with oral cancer. An oral examination was undertaken using WHO standardized methodology. Data were analysed using ANOVA, Chi-Square, and logistic regression to assess association between risk factors and mucosal disease. A total of 973 respondents between the ages of 17 and 82 years was enrolled (WJ 35.5%,JKT 13.3% WP 18.3%, WK 9%, BA 23.9%). Tobacco smoking (14.8%), Betel quid (BQ) chewing (12.6%) and alcohol drinking (4%) varied geographically. A well-established OPMD was detected in 137 (14.1%) respondents and 2 (0.2%) presented with chronic ulceration later diagnosed as OC. Leukoplakia was the most common OPMD found (9.7%), while the prevalence of oral submucous fibrosis (OSMF), not previously described in the nation, was 2.3%. Poor knowledge of OC risk factors, poor oral hygiene behaviours, low-income SES and ethnicity were significantly associated with the presence of an OPMD. There is a previously under-reported high prevalence of OPMD in Indonesia. Overall, we found a strong correlation between the presence of an OPMD and individual habituation to known risk factors.
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Affiliation(s)
- Elizabeth Fitriana Sari
- Dentistry and Oral Health Discipline, Department of Rural Clinical Science, La Trobe Rural Health School, Bendigo, 3552, Australia.
- Faculty of Dentistry, Universitas Padjadjaran, 45363, Bandung, Indonesia.
| | - Newell W Johnson
- Menzies Health Institute QueenslandSchool of Medicine and Dentistry, Griffith University, Gold Coast, QLD, Australia
- Faculty of Dentistry Oral and Craniofacial Sciences, King's College London, London, UK
| | - Michael John McCullough
- Melbourne Dental School, The University of Melbourne, 720, Swanston Street, Carlton, VIC, 3053, Australia
| | - Nicola Cirillo
- Melbourne Dental School, The University of Melbourne, 720, Swanston Street, Carlton, VIC, 3053, Australia.
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Menditti D, Santagata M, Guida D, Magliulo R, D'Antonio GM, Staglianò S, Boschetti CE. State of the Art in the Diagnosis and Assessment of Oral Malignant and Potentially Malignant Disorders: Present Insights and Future Outlook-An Overview. Bioengineering (Basel) 2024; 11:228. [PMID: 38534502 DOI: 10.3390/bioengineering11030228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/28/2024] Open
Abstract
Oral Potentially Malignant Disorder (OPMD) is a significant concern for clinicians due to the risk of malignant transformation. Oral Squamous Cell Carcinoma (OSCC) is a common type of cancer with a low survival rate, causing over 200,000 new cases globally each year. Despite advancements in diagnosis and treatment, the five-year survival rate for OSCC patients remains under 50%. Early diagnosis can greatly improve the chances of survival. Therefore, understanding the development and transformation of OSCC and developing new diagnostic methods is crucial. The field of oral medicine has been advanced by technological and molecular innovations, leading to the integration of new medical technologies into dental practice. This study aims to outline the potential role of non-invasive imaging techniques and molecular signatures for the early detection of Oral Malignant and Potentially Malignant Disorders.
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Affiliation(s)
- Dardo Menditti
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Mario Santagata
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - David Guida
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Roberta Magliulo
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Giovanni Maria D'Antonio
- Division of Plastic and Reconstructive Surgery, Department of Surgical, Oncological and Oral Sciences, University of Palermo, 90128 Palermo, Italy
| | - Samuel Staglianò
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Ciro Emiliano Boschetti
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
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Sari EF, Hidayat W, Dewi TS, Rezeki S, Krimadi R, McCullough MJ, Cirillo N. General dentists' knowledge, perceptions, and practices regarding oral potentially malignant disorders and oral cancer in Indonesia. Clin Exp Dent Res 2024; 10:e807. [PMID: 38009492 PMCID: PMC10860440 DOI: 10.1002/cre2.807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/12/2023] [Accepted: 10/17/2023] [Indexed: 11/29/2023] Open
Abstract
INTRODUCTION The most effective means for reducing oral cancer (OC) mortality is by preventing late-stage disease. Early diagnosis can be improved by increasing awareness among healthcare providers, specifically general dental practitioners (GDP). Therefore, our study aimed to assess GDPs' knowledge of OC risk factors and perceived competence in performing conventional oral examination (COE) in routine dental practice. MATERIAL AND METHODS This was a cross-sectional study conducted in five provinces of Indonesia, namely: Aceh, Banda Aceh (BA); Bandung, West Java (WJ); special district Jakarta (JKT), JKT; Pontianak, West Kalimantan (WK); and Sorong, West Papua (WP). The local Dental Association or Faculty of Dentistry invited the GDPs to attend an education program and complete the survey. RESULTS One hundred seventy-seven GDPs completed the survey (WJ, n = 63; BA, n = 44, JKT, n = 27; WP, n = 23; and WP, n = 20). A large proportion (164 out of 177, 92.66%) of GDPs felt they had received insufficient training to equip them to diagnose OC and as many as 22.6% (n = 40) did not refer to specialists when they found suspicious mucosal lesions. Notwithstanding the significant regional variations, the majority of Indonesian GDPs self-reported inadequate knowledge and awareness of OC and scarce confidence in performing COE. CONCLUSION GDP knowledge of OC risk factors and COE is key to improving early diagnosis of OC at a community level. Therefore, it is suggested that the lack of knowledge and confidence of GDPs reported here should be addressed through the national dental curriculum in Indonesia.
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Affiliation(s)
- Elizabeth Fitriana Sari
- Melbourne Dental SchoolThe University of MelbourneCarltonVictoriaAustralia
- Dentistry Discipline, Department of Rural Clinical ScienceLa Trobe Rural Health SchoolBendigoAustralia
- Faculty of DentistryUniversitas PadjadjaranBandungIndonesia
| | - Wahyu Hidayat
- Faculty of DentistryUniversitas PadjadjaranBandungIndonesia
| | | | - Sri Rezeki
- Faculty of DentistryUniversitas Syiah KualaBanda AcehIndonesia
| | | | | | - Nicola Cirillo
- Melbourne Dental SchoolThe University of MelbourneCarltonVictoriaAustralia
- School of DentistryUniversity of JordanAmmanJordan
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Vorakulpipat P, Kitkumthorn N, Lapthanasupkul P, Rungraungrayabkul D, Klongnoi B, Khovidhunkit SOP. Distribution of Epstein-Barr virus in the oral cavity of Thais with various oral mucosal conditions. Heliyon 2024; 10:e24222. [PMID: 38293426 PMCID: PMC10826676 DOI: 10.1016/j.heliyon.2024.e24222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 01/01/2024] [Accepted: 01/04/2024] [Indexed: 02/01/2024] Open
Abstract
Objectives We aimed to examine the presence of EBV, EBV strains, and variants among 3 oral conditions including normal oral mucosa (NOM), oral potentially malignant disorders/oral cancer (OPMDs/OC) and non-OPMDs/OC in a group of Thais. Material and methods Oral exfoliated cells were obtained from 315 participants living in the northeastern and central regions of Thailand. The participants were divided into 3 groups encompassing the NOM, the OPMDs/OC and the non-OPMDs/OC groups. The presence of EBV was first determined by PCR using primers for LMP1 gene. Subsequently, EBV strains of EBNA3c and variants based on LMP1 sequences were determined by real-time PCR. Results The prevalence of EBV in OPMDs/OC, non-OPMDs/OC and NOM were 72.0 %, 56.2 %, and 27.2 % respectively. EBV type A, B and AB were found in 52.1 %, 32.1 % and 15.8 % of all positive samples, respectively. The percentage of participants with EBV type A was more prominent in the NOM group (72.0 %) compared to the non-OPMDs/OC (54.8 %) and the OPMDs/OC group (41.8 %) whereas EBV type B was higher in the OPMDs/OC group (35.8 %) compared to the non-OPMDs/OC (31.5 %) and the NOM (24.0 %) groups. Regarding EBV variants, 30-bp deletion LMP1 variant (del-LMP1) which is more associated with malignant transformation was predominately found in the OPMDs/OC (32.8 %) and the non-OPMDs/OC (38.4 %) groups compared to the NOM group (20.0 %). Conclusions High frequency of EBV was demonstrated in the OPMDs/OC group. EBV type A was more predominant in the NOM group whereas EBV type B was more prevalent in the OPMDs/OC group. The del-LMP1 variant was more common in the OPMDs/OC and the non-OPMDs/OC groups.
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Affiliation(s)
- Pasinee Vorakulpipat
- Department of Advanced General Dentistry, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Nakarin Kitkumthorn
- Department of Oral Biology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Puangwan Lapthanasupkul
- Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | | | - Boworn Klongnoi
- Development of Disease Management Model for Oral Cancer with an Integration Network of Screening, Surveillance, and Treatment from Primary Care Unit to Tertiary Care in North East Health District Project, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Siribang-on Piboonniyom Khovidhunkit
- Department of Advanced General Dentistry, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
- Development of Disease Management Model for Oral Cancer with an Integration Network of Screening, Surveillance, and Treatment from Primary Care Unit to Tertiary Care in North East Health District Project, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
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Nazar NSBM, Ramanathan A, Ghani WMN, Rokhani FB, Jacob PS, Sabri NEB, Hassan MS, Kadir K, Dharmarajan L. Salivary metabolomics in oral potentially malignant disorders and oral cancer patients-a systematic review with meta-analysis. Clin Oral Investig 2024; 28:98. [PMID: 38225483 DOI: 10.1007/s00784-023-05481-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/27/2023] [Indexed: 01/17/2024]
Abstract
OBJECTIVES The aim of this systematic review and meta-analysis is to assess the diagnostic potential of salivary metabolomics in the detection of oral potentially malignant disorders (OPMDs) and oral cancer (OC). MATERIALS AND METHODS A systematic review was performed in accordance with the 3rd edition of the Centre for Reviews and Dissemination (CRD) and Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement. Electronic searches for articles were carried out in the PubMed, Web of Science, and Scopus databases. The quality assessment of the included studies was evaluated using the Newcastle-Ottawa Quality Assessment Scale (NOS) and the new version of the QUADOMICS tool. Meta-analysis was conducted whenever possible. The effect size was presented using the Forest plot, whereas the presence of publication bias was examined through Begg's funnel plot. RESULTS A total of nine studies were included in the systematic review. The metabolite profiling was heterogeneous across all the studies. The expression of several salivary metabolites was found to be significantly altered in OPMDs and OCs as compared to healthy controls. Meta-analysis was able to be conducted only for N-acetylglucosamine. There was no significant difference (SMD = 0.15; 95% CI - 0.25-0.56) in the level of N-acetylglucosamine between OPMDs, OC, and the control group. CONCLUSION Evidence for N-acetylglucosamine as a salivary biomarker for oral cancer is lacking. Although several salivary metabolites show changes between healthy, OPMDs, and OC, their diagnostic potential cannot be assessed in this review due to a lack of data. Therefore, further high-quality studies with detailed analysis and reporting are required to establish the diagnostic potential of the salivary metabolites in OPMDs and OC. CLINICAL RELEVANCE While some salivary metabolites exhibit significant changes in oral potentially malignant disorders (OPMDs) and oral cancer (OC) compared to healthy controls, the current evidence, especially for N-acetylglucosamine, is inadequate to confirm their reliability as diagnostic biomarkers. Additional high-quality studies are needed for a more conclusive assessment of salivary metabolites in oral disease diagnosis.
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Affiliation(s)
- Nur Syahirah Binti Mohd Nazar
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
- Department of Oral and Maxillofacial Surgery, Medicine and Pathology, Faculty of Dentistry, Universiti Sains Islam Malaysia, Kuala Lumpur, Malaysia
| | - Anand Ramanathan
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia.
- Oral Cancer Research & Coordinating Center, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia.
| | - Wan Maria Nabillah Ghani
- Oral Cancer Research & Coordinating Center, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Faezah Binti Rokhani
- Department of Oral and Maxillofacial Surgery, Medicine and Pathology, Faculty of Dentistry, Universiti Sains Islam Malaysia, Kuala Lumpur, Malaysia
| | - Pulikkotil Shaju Jacob
- Division of Clinical Dentistry, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
| | - Nurul Elma Binti Sabri
- Department of Agrotechnology and Bioscience, Malaysian Nuclear Agency, Bangi, Selangor, Malaysia
| | - Mohd Sukri Hassan
- Faculty of Science and Technology, Universiti Sains Islam Malaysia, Kuala Lumpur, Malaysia
| | - Kathreena Kadir
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
- Oral Cancer Research & Coordinating Center, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
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Meisgeier A, Heymann P, Ziebart T, Braun A, Neff A. Wound healing after therapy of oral potentially malignant disorders with a 445-nm semiconductor laser: a randomized clinical trial. Clin Oral Investig 2023; 28:26. [PMID: 38147181 PMCID: PMC10751250 DOI: 10.1007/s00784-023-05438-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 11/18/2023] [Indexed: 12/27/2023]
Abstract
OBJECTIVES Oral potentially malignant disorders (OPMDs) are the most clinically relevant precursor lesions of the oral squamous cell carcinoma (OSCC). OSCC is one of the 15 most common cancers worldwide. OSCC is with its high rate of mortality an important cause of death worldwide. The diagnosis and therapy of clinically relevant precursor lesions of the OSCC is one of the main parts of prevention of this malignant disease. Targeted therapy is one of the main challenges concerning an oncologically safe tissue removal without overwhelming functional and aesthetic impairment. MATERIALS AND METHODS In this randomized controlled trial, a newly introduced intraoral 445-nm semiconductor laser (2W; cw-mode; SIROLaser Blue, Dentsply Sirona, Bensheim, Germany) was used in the therapy of OPMDs. Duration and course of wound healing, pain, and scar tissue formation were compared to classical cold blade removal with primary suture by measuring remaining wound area, tissue colorimetry, and visual analogue scale. The study includes 40 patients randomized using a random spreadsheet sequence in two groups (n1 = 20; n2 = 20). RESULTS This comparative analysis revealed a significantly reduced remaining wound area after 1, 2, and 4 weeks in the laser group compared to the cold blade group (p < 0.05). In the laser group, a significantly reduced postoperative pain after 1 week was measured (p < 0.05). CONCLUSION Laser coagulation of OPMDs with the investigated 445-nm semiconductor laser is a safe, gentle, and predictable surgical procedure with beneficial wound healing and reduced postoperative discomfort. CLINICAL RELEVANCE Compared to the more invasive and bloody cold blade removal with scalpel, the 445-nm semiconductor laser could be a new functional less traumatic tool in the therapy of OPMDs. The method should be further investigated with regard to the identification of further possible indications. TRAIL REGISTRATION German Clinical Trials Register No: DRKS00032626.
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Affiliation(s)
- Axel Meisgeier
- Department of Oral and Craniomaxillofacial Surgery, UKGM GmbH, University Hospital Marburg, Giessen/Marburg, Germany.
- Faculty of Medicine, Philipps-University, Marburg, 35043, Marburg, Germany.
| | - Paul Heymann
- Department of Oral and Craniomaxillofacial Surgery, UKGM GmbH, University Hospital Marburg, Giessen/Marburg, Germany
- Faculty of Medicine, Philipps-University, Marburg, 35043, Marburg, Germany
| | - Thomas Ziebart
- Department of Oral and Craniomaxillofacial Surgery, UKGM GmbH, University Hospital Marburg, Giessen/Marburg, Germany
- Faculty of Medicine, Philipps-University, Marburg, 35043, Marburg, Germany
| | - Andreas Braun
- Department of Operative Dentistry, Periodontology and Preventive Dentistry, RWTH University Aachen, Aachen, Germany
| | - Andreas Neff
- Department of Oral and Craniomaxillofacial Surgery, UKGM GmbH, University Hospital Marburg, Giessen/Marburg, Germany
- Faculty of Medicine, Philipps-University, Marburg, 35043, Marburg, Germany
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López-Jornet P, Olmo-Monedero A, Peres-Rubio C, Pons-Fuster E, Tvarijonaviciute A. Preliminary Evaluation Salivary Biomarkers in Patients with Oral Potentially Malignant Disorders ( OPMD): A Case-Control Study. Cancers (Basel) 2023; 15:5256. [PMID: 37958429 PMCID: PMC10650598 DOI: 10.3390/cancers15215256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/27/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023] Open
Abstract
INTRODUCTION Oral potentially malignant disorders (OPMD) are lesions associated with an increased risk of transformation (MT) into cancer. OBJECTIVE A study was made of the salivary levels of adenosine deaminase (ADA), ferritin (FRR) and total proteins (TP) in healthy individuals and in patients with oral potentially malignant disorders (OPMD), assessing the potential role of saliva as a diagnostic tool. METHODS A total of 91 subjects participated in the study, divided into two groups-59 patients with OPMD (oral leukoplakia or oral lichen planus) and 32 healthy controls-with measurements being made of salivary ADA, ferritin (FRR) and total proteins (TP). RESULTS There were no significant differences in salivary mean ADA between the OPMD group 0.85 ± 2.18 UI/I and the controls 0.71 ± 1.72 UI/I (p = 0.934), though the levels of both FRR mean OPMD, 12.66 ± 10.50 (µg/L), versus control, 7.19 ± 4.44 (p = 0.001), and TP, 23.41 ± 17, versus control, 14.15 ± 15.19, were significantly higher in the OPMD group (p = 0.001). Patients with oral lichen planus showed significant differences in terms of FRR (p = 0.009) and TP (p = 0.003). The ferritin in LPO with a cut-off point of 8.5C showed a sensitivity and specificity of 54.3% and 82.3, respectively. The area under the curve (AUC) was 0.69 (95% confidence interval (95% CI): 0.58-0.82; p = 0.003). CONCLUSIONS Ferritin and total proteins may constitute potential salivary biomarkers for oral lichen planus, though further studies are still needed in this field. In addition, saliva testing is a reliable and noninvasive diagnostic tool and appears to be a reliable strategy offering an interesting alternative for the screening of large populations.
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Affiliation(s)
- Pia López-Jornet
- Faculty of Medicine and Odontology, Hospital Morales Meseguer, Clínica Odontológica, Marqués del Los Vélez s/n, 30008 Murcia, Spain;
| | - Aitana Olmo-Monedero
- Faculty of Medicine and Odontology, Hospital Morales Meseguer, Clínica Odontológica, Marqués del Los Vélez s/n, 30008 Murcia, Spain;
| | - Camila Peres-Rubio
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Veterinary School, Regional Campus of International Excellence Mare Nostrum, University of Murcia, Campus de Espinardo s/n, Espinardo, 30100 Murcia, Spain; (C.P.-R.); (A.T.)
| | - Eduardo Pons-Fuster
- Departamento de Anatomía Humana y Psicobiología, Faculty of Medicine and Odontology, Biomedical Research Institute (IMIB-Arrixaca), University of Murcia Spain, 30100 Murcia, Spain;
| | - Asta Tvarijonaviciute
- Interdisciplinary Laboratory of Clinical Analysis (Interlab-UMU), Veterinary School, Regional Campus of International Excellence Mare Nostrum, University of Murcia, Campus de Espinardo s/n, Espinardo, 30100 Murcia, Spain; (C.P.-R.); (A.T.)
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Côté C, Brais B, Sèbiyo Batcho C, Brisson JD, Youssof S, Allegue DR, Gagnon C. Introducing the Dysphagiameter: a novel patient-reported outcome measure for evaluating dysphagia in oculopharyngeal muscular dystrophy - from conceptual framework to initial development. Neuromuscul Disord 2023; 33:856-865. [PMID: 37923656 DOI: 10.1016/j.nmd.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/05/2023] [Accepted: 09/10/2023] [Indexed: 11/07/2023]
Abstract
Oculopharyngeal muscular dystrophy (OPMD) is a rare late-onset muscle disease associated with progressive dysphagia. As there was no patient-reported outcome measure specific for the assessment of dysphagia in OPMD, the Dysphagiameter was developed. The Food and Drug Administration guidance was followed. In Phase 1, a systematic literature review and an expert consultation were conducted to identify the concepts of interest. It was decided that the instrument should assess difficulty swallowing using pictures of foods of various textures (part A) and impact of dysphagia on activities and participation (part B), as defined by the International Classification of Functioning, Disability and Health. In Phase 2, focus groups (n = 3) and online surveys (n = 55) were conducted to generate the items. Then, the food items for part A were selected and grouped into 17 textures by a panel of registered dietitians. Cognitive interviews were conducted (n = 23) to refine the instrument and assess its clarity and comprehensiveness. The final draft included 82 food items assessing the capacity to swallow foods and drinks (part A) and 10 items assessing the impact of dysphagia on activities and participation (part B). Item reduction and assessment of psychometrics properties, using Rasch analysis, are ongoing as part of Phase 3.
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Affiliation(s)
- Claudia Côté
- Faculté de médecine et des sciences de la santé, Université de Sherbrooke, 3001, 12e avenue Nord, Sherbrooke (Québec) J1H 5N4, Canada; Groupe de recherche interdisciplinaire sur les maladies neuromusculaires (GRIMN), Clinique des maladies neuromusculaires, Hôpital de Jonquière, 2230, rue de l'Hôpital, 7e étage, Jonquière (Québec) G7X 7X2, Canada.
| | - Bernard Brais
- Department of Neurology and Neurosurgery, Faculty of Medicine and Health Sciences, McGill University, 845, rue Sherbrooke O, Montréal (Québec) H3A OG4, Canada; Rare Neurological Diseases Research Group, The Neuro (Montreal Neurological Institute-Hospital), 3801, rue University, Montréal (Québec) H3A 2B4, Canada
| | - Charles Sèbiyo Batcho
- Centre interdisciplinaire de recherche en réadaptation et intégration sociale (CIRRIS), Institut de réadaptation en déficience de Québec, 525, boul Wilfrid-Hamel, Québec (Québec) G1M 2S8, Canada; Département de réadaptation, Faculté de médecine, Université Laval, Pavillon Ferdinand-Vandry, 1050, rue de la Médecine, Québec (Québec) G1V 0A6, Canada
| | - Jean-Denis Brisson
- Faculté de médecine et des sciences de la santé, Université de Sherbrooke, 3001, 12e avenue Nord, Sherbrooke (Québec) J1H 5N4, Canada; Groupe de recherche interdisciplinaire sur les maladies neuromusculaires (GRIMN), Clinique des maladies neuromusculaires, Hôpital de Jonquière, 2230, rue de l'Hôpital, 7e étage, Jonquière (Québec) G7X 7X2, Canada
| | - Sarah Youssof
- Department of Neurology, Health Sciences, The University of New Mexico, MSC10 5620, 1 University of New Mexico, Albuquerque, NM 87131, USA
| | - Dorra Rakia Allegue
- School of Physical and Occupational Therapy, Faculty of Medicine and Health Sciences, McGill University, 845, rue Sherbrooke O, Montréal (Québec) H3A 0G4, Canada; Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal, Institut universitaire sur la réadaptation en déficience physique de Montréal, Pavillon Lindsay, 6363, chemin Hudson, 5e étage, Montréal (Québec) H3S 1M9, Canada
| | - Cynthia Gagnon
- Faculté de médecine et des sciences de la santé, Université de Sherbrooke, 3001, 12e avenue Nord, Sherbrooke (Québec) J1H 5N4, Canada; Groupe de recherche interdisciplinaire sur les maladies neuromusculaires (GRIMN), Clinique des maladies neuromusculaires, Hôpital de Jonquière, 2230, rue de l'Hôpital, 7e étage, Jonquière (Québec) G7X 7X2, Canada
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Khamis A, Salzer L, Schiegnitz E, Stauber RH, Gül D. The Magic Triangle in Oral Potentially Malignant Disorders: Vitamin D, Vitamin D Receptor, and Malignancy. Int J Mol Sci 2023; 24:15058. [PMID: 37894739 PMCID: PMC10606220 DOI: 10.3390/ijms242015058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
OPMDs (oral potentially malignant disorders) are a group of disorders affecting the oral mucosa that are characterized by aberrant cell proliferation and a higher risk of malignant transformation. Vitamin D (VitD) and its receptor (VDR) have been extensively studied for their potential contributions to the prevention and therapeutic management of various diseases and neoplastic conditions, including oral cancer. Observational studies suggest correlations between VitD deficiency and higher cancer risk, worse prognosis, and increased mortality rates. Interestingly, emerging data also suggest a link between VitD insufficiency and the onset or progression of OPMDs. Understanding the role of the VitD-VDR axis not only in established oral tumors but also in OPMDs might thus enable early detection and prevention of malignant transformation. With this article, we want to provide an overview of current knowledge about OPMDs and VitD and investigate their potential association and ramifications for clinical management of OPMDs.
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Affiliation(s)
- Aya Khamis
- Department of Otorhinolaryngology Head and Neck Surgery, Molecular and Cellular Oncology, University Medical Center, 55131 Mainz, Germany; (L.S.); (R.H.S.)
- Department of Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Center of the Johannes Gutenberg—University Mainz, 55131 Mainz, Germany;
- Oral Pathology Department, Faculty of Dentistry, Alexandria University, Alexandria 5372066, Egypt
| | - Lara Salzer
- Department of Otorhinolaryngology Head and Neck Surgery, Molecular and Cellular Oncology, University Medical Center, 55131 Mainz, Germany; (L.S.); (R.H.S.)
| | - Eik Schiegnitz
- Department of Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Center of the Johannes Gutenberg—University Mainz, 55131 Mainz, Germany;
| | - Roland H. Stauber
- Department of Otorhinolaryngology Head and Neck Surgery, Molecular and Cellular Oncology, University Medical Center, 55131 Mainz, Germany; (L.S.); (R.H.S.)
| | - Désirée Gül
- Department of Otorhinolaryngology Head and Neck Surgery, Molecular and Cellular Oncology, University Medical Center, 55131 Mainz, Germany; (L.S.); (R.H.S.)
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Thapa P, Singh V, Bhatt S, Maurya K, Kumar V, Nayyar V, Jot K, Mishra D, Shrivastava A, Mehta DS. Multimodal fluorescence imaging and spectroscopic techniques for oral cancer screening: a real-time approach. Methods Appl Fluoresc 2023; 11:045008. [PMID: 37666247 DOI: 10.1088/2050-6120/acf6ac] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 09/04/2023] [Indexed: 09/06/2023]
Abstract
The survival rate of oral squamous cell carcinoma (OSCC) patients is very poor, but it can be improved using highly sensitive, specific, and accurate techniques. Autofluorescence and fluorescence techniques are very sensitive and helpful in cancer screening; being directly linked with the molecular levels of human tissue, they can be used as a quantitative tool for cancer detection. Here, we report the development of multi-modal autofluorescence and fluorescence imaging and spectroscopic (MAF-IS) smartphone-based systems for fast and real-time oral cancer screening. MAF-IS system is indigenously developed and offers the advantages of being a low-cost, handy, non-contact, non-invasive, and easily operable device that can be employed in hospitals, including low-resource settings. In this study, we report the results of 43 individuals with 28 OSCC and 15 oral potentially malignant disorders (OPMDs), i.e., epithelial dysplasia and oral submucous fibrosis, using the developed devices. We observed a red shift in fluorescence emission spectrain vivo. We found red-shift of 7.72 ± 6 nm, 3 ± 4.36 nm, and 1.33 ± 0.47 nm in the case of OSCC, epithelial dysplasia, and oral submucous fibrosis, respectively, compared to normal. The results were compared with histopathology and found to be consistent. Further, the MAF-IS system provides results in real-time with higher accuracy and sensitivity compared to devices using a single modality. Our system can achieve an accuracy of 97% with sensitivity and specificity of 100% and 94.7%, respectively, even with a smaller number of patients (28 patients of OSCC). The proposed MAF-IS device has great potential for fast screening and diagnosis of oral cancer in the future.
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Affiliation(s)
- Pramila Thapa
- Bio-photonics and Green-photonics Laboratory, Department of Physics, Indian Institute of Technology Delhi, Hauz-Khas, New Delhi 110016, India
| | - Veena Singh
- Bio-photonics and Green-photonics Laboratory, Department of Physics, Indian Institute of Technology Delhi, Hauz-Khas, New Delhi 110016, India
| | - Sunil Bhatt
- Bio-photonics and Green-photonics Laboratory, Department of Physics, Indian Institute of Technology Delhi, Hauz-Khas, New Delhi 110016, India
| | - Kiran Maurya
- Department of Oral Pathology and Microbiology, Center for Dental Education & Research, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi 110029, India
| | - Virendra Kumar
- Bio-photonics and Green-photonics Laboratory, Department of Physics, Indian Institute of Technology Delhi, Hauz-Khas, New Delhi 110016, India
| | - Vivek Nayyar
- Department of Oral Pathology and Microbiology, Center for Dental Education & Research, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi 110029, India
| | - Kiran Jot
- Department of Oral Pathology and Microbiology, Center for Dental Education & Research, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi 110029, India
| | - Deepika Mishra
- Department of Oral Pathology and Microbiology, Center for Dental Education & Research, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi 110029, India
| | - Anurag Shrivastava
- Department of Surgical Disciplines, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi 110029, India
| | - Dalip Singh Mehta
- Bio-photonics and Green-photonics Laboratory, Department of Physics, Indian Institute of Technology Delhi, Hauz-Khas, New Delhi 110016, India
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Radaic A, Shamir ER, Jones K, Villa A, Garud NR, Tward AD, Kamarajan P, Kapila YL. Specific Oral Microbial Differences in Proteobacteria and Bacteroidetes Are Associated with Distinct Sites When Moving from Healthy Mucosa to Oral Dysplasia-A Microbiome and Gene Profiling Study and Focused Review. Microorganisms 2023; 11:2250. [PMID: 37764094 PMCID: PMC10534919 DOI: 10.3390/microorganisms11092250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/24/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Oral potentially malignant disorders (OPMDs) are a group of conditions that carry a risk of oral squamous cell carcinoma (OSCC) development. Recent studies indicate that periodontal disease-associated pathogenic bacteria may play a role in the transition from healthy mucosa to dysplasia and to OSCC. Yet, the microbial signatures associated with the transition from healthy mucosa to dysplasia have not been established. To characterize oral microbial signatures at these different sites, we performed a 16S sequencing analysis of both oral swab and formalin-fixed, paraffin-embedded tissue (FFPE) samples. We collected oral swabs from healthy mucosa (from healthy patients), histologically normal mucosa adjacent to dysplasia, and low-grade oral dysplasia. Additionally, FFPE samples from histologically normal mucosa adjacent to OSCC, plus low grade and high-grade oral dysplasia samples were also collected. The collected data demonstrate significant differences in the alpha and beta microbial diversities of different sites in oral mucosa, dysplasia, and OSCC, as well as increased dissimilarities within these sites. We found that the Proteobacteria phyla abundance increased, concurrent with a progressive decrease in the Firmicutes phyla abundance, as well as altered levels of Enterococcus cecorum, Fusobacterium periodonticum, Prevotella melaninogenica, and Fusobacterium canifelinum when moving from healthy to diseased sites. Moreover, the swab sample analysis indicates that the oral microbiome may be altered in areas that are histologically normal, including in mucosa adjacent to dysplasia. Furthermore, trends in specific microbiome changes in oral swab samples preceded those in the tissues, signifying early detection opportunities for clinical diagnosis. In addition, we evaluated the gene expression profile of OSCC cells (HSC-3) infected with either P. gingivalis, T. denticola, F. nucelatum, or S. sanguinis and found that the three periodontopathogens enrich genetic processes related to cancer progression, including skin keratinization/cornification, while the commensal enriched processes related to RNA processing and adhesion. Finally, we reviewed the dysplasia microbiome literature and found a significant decrease in commensal bacteria, such as the Streptococci genus, and a simultaneous increase in pathogenic bacteria, mainly Bacteroidetes phyla and Fusobacterium genus. These findings suggest that features of the oral microbiome can serve as novel biomarkers for dysplasia and OSCC disease progression.
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Affiliation(s)
- Allan Radaic
- School of Dentistry, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA; (A.R.); (P.K.)
- School of Dentistry, University of California, San Francisco (UCSF), San Francisco, CA 94143, USA; (K.J.); (A.V.)
| | - Eliah R. Shamir
- School of Medicine, University of California, San Francisco (UCSF), San Francisco, CA 94143, USA; (E.R.S.); (A.D.T.)
- Genentech, Inc., South San Francisco, CA 94080, USA
| | - Kyle Jones
- School of Dentistry, University of California, San Francisco (UCSF), San Francisco, CA 94143, USA; (K.J.); (A.V.)
- Genentech, Inc., South San Francisco, CA 94080, USA
| | - Alessandro Villa
- School of Dentistry, University of California, San Francisco (UCSF), San Francisco, CA 94143, USA; (K.J.); (A.V.)
- Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA
| | - Nandita R. Garud
- College of Life Sciences, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA;
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA
| | - Aaron D. Tward
- School of Medicine, University of California, San Francisco (UCSF), San Francisco, CA 94143, USA; (E.R.S.); (A.D.T.)
| | - Pachiyappan Kamarajan
- School of Dentistry, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA; (A.R.); (P.K.)
- School of Dentistry, University of California, San Francisco (UCSF), San Francisco, CA 94143, USA; (K.J.); (A.V.)
| | - Yvonne L. Kapila
- School of Dentistry, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA; (A.R.); (P.K.)
- School of Dentistry, University of California, San Francisco (UCSF), San Francisco, CA 94143, USA; (K.J.); (A.V.)
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14
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Puttaraju MK, Nitin P. Conceptual model for progression of oral cancer - our perspective. Am J Cancer Res 2023; 13:3650-3658. [PMID: 37693161 PMCID: PMC10492112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 03/28/2022] [Indexed: 09/12/2023] Open
Abstract
Oral cancer was and still is an underestimated disease in terms of incidence and mortality rates. As a result, requires early detection and urgent prevention. This article describes a framework that covers the significant stages of conceptual development of oral cancer. Conceptual model is useful in understanding the pathogenesis and understand the disease processes. This article signifies information on various aspects of perspective risk and the role played by it. Article covers the following aspects: what are the perspective risks, what changes it causes to normal cell, what are the direct and indirect effects on normal cell, cellular changes seen with normal cell when affected with perspective risk, transformation of normal cell to oral potentially malignant disorders (OPMD) and changes seen during transformation into cancer. Understanding the conceptual model of oral cancer transformation will be a paradigm shift in future research in the field and early management of oral cancer, which will reduce the disease burden on the nation.
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Affiliation(s)
- Mahesh Kagarae Puttaraju
- Department of Oral Medicine and Radiology, JSS Dental College & Hospital, JSS Academy of Higher Education & ResearchMysuru 570015, Karnataka, India
| | - Priyanka Nitin
- Department of Oral Pathology and Microbiology, JSS Dental College & Hospital, JSS Academy of Higher Education & ResearchMysuru 570015, Karnataka, India
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Lorenzo-Pouso AI, Caponio VCA, Vieira E Silva FF, Pérez-Jardón A, Álvarez-Calderón-Iglesias Ó, Gándara-Vila P, Pannone G, Pérez-Sayáns M. Predictive value of CDKN2A/p16 INK4a expression in the malignant transformation of oral potentially malignant disorders: Systematic review and meta-analysis. Pathol Res Pract 2023; 248:154656. [PMID: 37406376 DOI: 10.1016/j.prp.2023.154656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/25/2023] [Accepted: 06/28/2023] [Indexed: 07/07/2023]
Abstract
BACKGROUND Management of oral potentially malignant disorders (OPMDs) is still challenging. Despite the diagnostic ascertainment by bioptic examination, this method is poorly informative of the prognosis and subsequent malignant transformation. Prognosis is based on histological findings by grading of dysplasia. Immunohistochemical expression of p16INK4a has been investigated in different studies, with controversial results. In this scenario, we systematically revised the current evidence about p16INK4a immunohistochemical expression and the risk of malignization of OPMDs. MATERIAL AND METHODS After a proper set of keywords combination, 5 databases were accessed and screened to select eligible studies. The protocol was previously registered on PROSPERO (Protocol ID: CRD42022355931). Data were obtained directly from the primary studies as a measure to determine the relationship between CDKN2A/P16INK4a expression and the malignant transformation of OPMDs. Heterogeneity and publication bias were investigated by different tools, such as Cochran's Q test, Galbraith plot and Egger and Begg Mazumdar's rank tests. RESULTS Meta-analysis revealed a twofold increased risk to malignant development (RR = 2.01, 95% CI = 1.36-2.96 - I2 = 0%). Subgroup analysis did not highlight any relevant heterogeneity. Galbraith plot showed that no individual study could be considered as an important outlier. CONCLUSION Pooled analysis showed that p16INK4a assessment may arise adjunct tool to dysplasia grading, leading to an optimized determination of the potential progression to cancer of OPMDs. The p16INK4a overexpression analysis by immunohistochemistry techniques has a multitude of virtues that may facilitate its incorporation in the day-to-day prognostic study of OPMDs.
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Affiliation(s)
- Alejandro I Lorenzo-Pouso
- Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes Group), Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, 15782 A Coruña, Spain; Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
| | | | - Fábio França Vieira E Silva
- Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes Group), Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, 15782 A Coruña, Spain; Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
| | - Alba Pérez-Jardón
- Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes Group), Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, 15782 A Coruña, Spain; Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
| | - Óscar Álvarez-Calderón-Iglesias
- Research, Health and Podiatry Group, Department of Health Sciences, Faculty of Nursing and Podiatry, University of A Coruña, 15008 A Coruña, Spain
| | - Pilar Gándara-Vila
- Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes Group), Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, 15782 A Coruña, Spain; Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain.
| | - Giuseppe Pannone
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Mario Pérez-Sayáns
- Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes Group), Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, 15782 A Coruña, Spain; Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
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16
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McMillan PJ, Benbow SJ, Uhrich R, Saxton A, Baum M, Strovas T, Wheeler JM, Baker J, Liachko NF, Keene CD, Latimer CS, Kraemer BC. Tau-RNA complexes inhibit microtubule polymerization and drive disease-relevant conformation change. Brain 2023; 146:3206-3220. [PMID: 36732296 PMCID: PMC10393409 DOI: 10.1093/brain/awad032] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 01/09/2023] [Accepted: 01/23/2023] [Indexed: 02/04/2023] Open
Abstract
Alzheimer's disease and related disorders feature neurofibrillary tangles and other neuropathological lesions composed of detergent-insoluble tau protein. In recent structural biology studies of tau proteinopathy, aggregated tau forms a distinct set of conformational variants specific to the different types of tauopathy disorders. However, the constituents driving the formation of distinct pathological tau conformations on pathway to tau-mediated neurodegeneration remain unknown. Previous work demonstrated RNA can serve as a driver of tau aggregation, and RNA associates with tau containing lesions, but tools for evaluating tau/RNA interactions remain limited. Here, we employed molecular interaction studies to measure the impact of tau/RNA binding on tau microtubule binding and aggregation. To investigate the importance of tau/RNA complexes (TRCs) in neurodegenerative disease, we raised a monoclonal antibody (TRC35) against aggregated tau/RNA complexes. We showed that native tau binds RNA with high affinity but low specificity, and tau binding to RNA competes with tau-mediated microtubule assembly functions. Tau/RNA interaction in vitro promotes the formation of higher molecular weight tau/RNA complexes, which represent an oligomeric tau species. Coexpression of tau and poly(A)45 RNA transgenes in Caenorhabditis elegans exacerbates tau-related phenotypes including neuronal dysfunction and pathological tau accumulation. TRC35 exhibits specificity for Alzheimer's disease-derived detergent-insoluble tau relative to soluble recombinant tau. Immunostaining with TRC35 labels a wide variety of pathological tau lesions in animal models of tauopathy, which are reduced in mice lacking the RNA binding protein MSUT2. TRC-positive lesions are evident in many human tauopathies including Alzheimer's disease, progressive supranuclear palsy, corticobasal degeneration and Pick's disease. We also identified ocular pharyngeal muscular dystrophy as a novel tauopathy disorder, where loss of function in the poly(A) RNA binding protein (PABPN1) causes accumulation of pathological tau in tissue from post-mortem human brain. Tau/RNA binding drives tau conformational change and aggregation inhibiting tau-mediated microtubule assembly. Our findings implicate cellular tau/RNA interactions as modulators of both normal tau function and pathological tau toxicity in tauopathy disorders and suggest feasibility for novel therapeutic approaches targeting TRCs.
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Affiliation(s)
- Pamela J McMillan
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98195, USA
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
| | - Sarah J Benbow
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA 98104, USA
| | - Rikki Uhrich
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
| | - Aleen Saxton
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
| | - Misa Baum
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
| | - Timothy Strovas
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
| | - Jeanna M Wheeler
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
| | - Jeremy Baker
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA 98104, USA
| | - Nicole F Liachko
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA 98104, USA
| | - C Dirk Keene
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - Caitlin S Latimer
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - Brian C Kraemer
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98195, USA
- Geriatrics Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA 98104, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
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17
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Annapoorani S, Gururaj N, Balambigai VA, Prakash N, Hasinidevi P, Janani V. Assessment of Ploidy Status in Oral Potentially Malignant Disorders - A Systematic Review. J Pharm Bioallied Sci 2023; 15:S86-S92. [PMID: 37654386 PMCID: PMC10466542 DOI: 10.4103/jpbs.jpbs_547_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/16/2022] [Accepted: 11/23/2022] [Indexed: 09/02/2023] Open
Abstract
Malignant and potentially malignant epithelial lesions are often associated with various abnormalities such as epithelial dysplasia, abnormal DNA content, loss of heterozygosity, and chromosomal number aberrations. Screening and early detection of such abnormalities facilitates proper care and also helps to prevent further progression of potentially malignant lesions to malignancy. In such way, the presence of DNA aneuploidy in oral potentially malignant disorders (OPMDs) may serve as an indicator for the malignant transforming potential. Various assessment methods have been proposed to find the DNA ploidy status of cells. This current systematic review is mainly designed to assess the importance of ploidy status in OPMD while measuring the feasibility of using this biomarker for evaluating the hazard of malignant transformation. As an upshot of this systematic review, we can conclude that use of DNA ploidy status can serve as an independent bio-marker for predicting the malignant transformation of lesions. Furthermore, as a future scope the use of DNA ploidy analysis in normal mucosa of smokers will help to assess the malignancy risk and this technique might also help to predict the genetic predisposition of patients with malignancy.
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Affiliation(s)
- S. Annapoorani
- Department of Oral and Maxillofacial Pathology, CSI College of Dental Sciences and Research, Madurai, Tamil Nadu, India
| | - N. Gururaj
- Department of Oral and Maxillofacial Pathology, CSI College of Dental Sciences and Research, Madurai, Tamil Nadu, India
| | - V. Abiraami Balambigai
- Department of Oral and Maxillofacial Pathology, CSI College of Dental Sciences and Research, Madurai, Tamil Nadu, India
| | - Nilima Prakash
- Department of Oral Pathology and Microbiology, MGV’s KBH Dental College and Hospital, Nashik, Maharashtra, India
| | | | - V. Janani
- Srinivas Dental Clinic, Madurai, Tamil Nadu, India
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Naït-Saïdi R, Chartier A, Abgueguen E, Guédat P, Simonelig M. The small compound Icerguastat reduces muscle defects in oculopharyngeal muscular dystrophy through the PERK pathway of the unfolded protein response. Open Biol 2023; 13:230008. [PMID: 37042114 PMCID: PMC10090878 DOI: 10.1098/rsob.230008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023] Open
Abstract
Oculopharyngeal muscular dystrophy (OPMD) is an autosomal dominant disease characterized by the progressive degeneration of specific muscles. OPMD is due to a mutation in the gene encoding poly(A) binding protein nuclear 1 (PABPN1) leading to a stretch of 11 to 18 alanines at N-terminus of the protein, instead of 10 alanines in the normal protein. This alanine tract extension induces the misfolding and aggregation of PABPN1 in muscle nuclei. Here, using Drosophila OPMD models, we show that the unfolded protein response (UPR) is activated in OPMD upon endoplasmic reticulum stress. Mutations in components of the PERK branch of the UPR reduce muscle degeneration and PABPN1 aggregation characteristic of the disease. We show that oral treatment of OPMD flies with Icerguastat (previously IFB-088), a Guanabenz acetate derivative that shows lower side effects, also decreases muscle degeneration and PABPN1 aggregation. Furthermore, the positive effect of Icerguastat depends on GADD34, a key component of the phosphatase complex in the PERK branch of the UPR. This study reveals a major contribution of the ER stress in OPMD pathogenesis and provides a proof-of-concept for Icerguastat interest in future pharmacological treatments of OPMD.
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Affiliation(s)
- Rima Naït-Saïdi
- Institute of Human Genetics, University of Montpellier, CNRS, Montpellier, France
| | - Aymeric Chartier
- Institute of Human Genetics, University of Montpellier, CNRS, Montpellier, France
| | | | | | - Martine Simonelig
- Institute of Human Genetics, University of Montpellier, CNRS, Montpellier, France
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Li Z, Fu Y, Hu Y, Zhu Y, Hu L, Shi C, Zhang Y, Zhang J, Zhou S. Low-dose arecoline regulates distinct core signaling pathways in oral submucous fibrosis and oral squamous cell carcinoma. BMC Oral Health 2023; 23:171. [PMID: 36966276 PMCID: PMC10039525 DOI: 10.1186/s12903-023-02887-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/15/2023] [Indexed: 03/27/2023] Open
Abstract
BACKGROUND Betel nut chewing plays a role in the pathogenesis of oral submucous fibrosis (OSF) and oral squamous cell carcinoma (OSCC). As the major active ingredient of the betel nut, the effect of arecoline and its underlying mechanism to OSF and OSCC pathogenesis remain unclear. METHODS Next-generation sequencing-based transcriptome and dRRBS analysis were performed on OSF and OSCC cells under low-dose arecoline exposure. Functional analyses were performed to compare the different roles of arecoline during OSF and OSCC pathogenesis, and key genes were identified. RESULTS In this study, we identified that low-dose arecoline promoted cell proliferation of both NFs and OSCC cells via the acceleration of cell cycle progression, while high-dose arecoline was cytotoxic to both NFs and OSCC cells. We performed for the first time the transcriptome and methylome landscapes of NFs and OSCC cells under low-dose arecoline exposure. We found distinct transcriptome and methylome profiles mediated by low-dose arecoline in OSF and OSCC cells, as well as specific genes and signaling pathways associated with metabolic disorders induced by low-dose arecoline exposure. Additionally, low-dose arecoline displayed different functions at different stages, participating in the modulation of the extracellular matrix via Wnt signaling in NFs and epigenetic regulation in OSCC cells. After exposure to low-dose arecoline, the node roles of FMOD in NFs and histone gene clusters in OSCC cells were found. Meanwhile, some key methylated genes induced by arecoline were also identified, like PTPRM and FOXD3 in NFs, SALL3 and IRF8 in OSCC cells, indicating early molecular events mediated by arecoline during OSF and OSCC pathogenesis. CONCLUSIONS This study elucidated the contribution of low-dose arecoline to OSF and OSCC pathogenesis and identified key molecular events that could be targeted for further functional studies and their potential as biomarkers.
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Affiliation(s)
- Zhenming Li
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - You Fu
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Yuhua Hu
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, Shanghai, 200011, China
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yun Zhu
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Longwei Hu
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Chaoji Shi
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Yi Zhang
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, Shanghai, 200011, China
- Department of Endodontics and Operative Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Jianjun Zhang
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China
- National Center for Stomatology, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Shanghui Zhou
- Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, China.
- National Center for Stomatology, Shanghai, 200011, China.
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China.
- Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China.
- Shanghai Research Institute of Stomatology, Shanghai, 200011, China.
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Brierly G, Celentano A, Breik O, Moslemivayeghan E, Patini R, McCullough M, Yap T. Tumour Necrosis Factor Alpha (TNF-α) and Oral Squamous Cell Carcinoma. Cancers (Basel) 2023; 15:cancers15061841. [PMID: 36980727 PMCID: PMC10046488 DOI: 10.3390/cancers15061841] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/12/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Uncovering the inflammatory mechanisms underpinning initiation, progression, and promotion of oral squamous cell carcinoma (OSCC) development is fundamental to the rational pursuit of targeted therapeutics. Here we present a review of the current knowledge of the role of TNF-α in the aetiology, pathogenesis, and potential therapies with regards to OSCC. TNF-α is worthy of particular attention in OSCC, with its presence demonstrated to enhance cell proliferation and its downregulation demonstrated to inhibit proliferation and migration in other carcinomas in both in vitro and in vivo models and oral cancer patients. Increased TNF-α in the OSCC tumour microenvironment has been demonstrated to favour invasion through promotion of firstly the pro-inflammatory, pro-invasive phenotypes of OSCC cells and secondly its paracrine mechanism mediating recruitment and activation of inflammatory cells. Polymorphisms affecting the gene expression of TNF-α have been strongly associated with an increased risk for oral squamous cell carcinoma. A number of studies have considered TNF-α within biofluids, including saliva and serum, as a potential biomarker for the early detection of OSCC, as well as its staging, differentiation, and prognosis. The broad and multifaceted role that TNF-α plays in many inflammatory states presents an obvious confounder, particularly with demonstrated increased TNF-α levels in common oral disease states. Lastly, biologic agents targeting TNF-α are currently in clinical use for immune-mediated inflammatory rheumatological and gastrointestinal diseases. There is the potential that these biological agents might have an adjunctive role in OSCC prevention and treatment.
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Affiliation(s)
- Gary Brierly
- Maxillofacial/Head and Neck Surgery, Royal Brisbane and Women's Hospital, Queensland Health, Brisbane, QLD 4072, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD 4072, Australia
| | - Antonio Celentano
- Melbourne Dental School, Faculty of Medicine, Dentistry and Health Science, University of Melbourne, Carlton, VIC 3053, Australia
| | - Omar Breik
- Maxillofacial/Head and Neck Surgery, Royal Brisbane and Women's Hospital, Queensland Health, Brisbane, QLD 4072, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD 4072, Australia
| | - Elham Moslemivayeghan
- Melbourne Dental School, Faculty of Medicine, Dentistry and Health Science, University of Melbourne, Carlton, VIC 3053, Australia
| | - Romeo Patini
- Department of Head, Neck and Sense Organs, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Michael McCullough
- Melbourne Dental School, Faculty of Medicine, Dentistry and Health Science, University of Melbourne, Carlton, VIC 3053, Australia
| | - Tami Yap
- Melbourne Dental School, Faculty of Medicine, Dentistry and Health Science, University of Melbourne, Carlton, VIC 3053, Australia
- Dermatology, Royal Melbourne Hospital, Melbourne Health, Parkville, VIC 3050, Australia
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Abstract
PURPOSE Surgical correction of myogenic ptosis is a sophisticated endeavor, as the disease is progressive and the post-operative course is prone to significant complications. We sought to review the literature for repair techniques in different types of myogenic ptosis. METHODS A PubMed/MEDLINE literature search of publications pertaining to surgical outcomes of progressive myogenic ptosis repair was performed. Studies included were original retrospective studies with a minimum of four patients. RESULTS A total of 27 articles were identified and divided by etiology of myogenic ptosis; either chronic progressive external ophthalmoplegia (CPEO), oculopharyngeal muscular dystrophy (OPMD), myasthenia gravis (MG), or mixed. Surgical techniques predominantly involved levator advancement, levator resection, frontalis sling, blepharoplasty, and Fasanella-Servat. Success rates ranged from 60.5% to 100%. Significant postoperative complications included ptosis recurrence, under-correction, over-correction, keratopathy, lagophthalmos, sling exposure, and sling infection. CONCLUSION Like surgical repair for other forms of ptosis, correction of progressive myogenic ptosis is guided by levator excursion. However, myogenic ptosis is especially challenging as it is characterized by worsening ptosis and the loss of protective corneal mechanisms. The goals of care with myogenic ptosis involves repairing ptosis just sufficiently to alleviate visual obstruction while avoiding adverse post-operative complications. This intentional under-correction subsequently increases susceptibility for ptosis recurrence. Myogenic ptosis repair therefore requires delicate balancing between function, sustained repair, and corneal protection.
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Affiliation(s)
- Royce B. Park
- Department of Ophthalmology, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL
| | - Sruti S. Akella
- Department of Ophthalmology, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL
| | - Vinay K. Aakalu
- Department of Ophthalmology, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL
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22
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Saeed S, Rauf F, Iqbal F, Khan AS, Khan AH, Alamgeer R. Comparison of PD-L1 Expression in Oral Squamous Cell Carcinoma and Premalignant Lesions of Oral Cavity. Asian Pac J Cancer Prev 2022; 23:4039-4045. [PMID: 36579984 PMCID: PMC9971448 DOI: 10.31557/apjcp.2022.23.12.4039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE Objectives of this study were to compare expression of Programmed Death-Ligand 1(PD-L1) protein in oral squamous cell carcinoma (OSCC) and oral potentially malignant disorder (OPMD) cases; and to compare the PD-L1 protein expression in histological grades of OSCC and also in OPMD's with Dysplasia and without Dysplasia. MATERIALS & METHODS In this study, 25 cases of Oral squamous cell carcinoms, 25 cases of Oral Potentially Malignant Disorders and 10 cases of non-neoplastic oral mucosa (control) cases were included. FFPE blocks of OSCC and OPMD cases were contributed by Department of Pathology, Histopathology Division,Pakistan Institute of Medical Sciences, Islamabad. Immunohistochemical staining of cases with PD-L1 monoclonal antibody (1:100; Dako) was carried out at Histopathology division , PMC Labs, Peshawar Medical College,Peshawar, Riphah International University, Islamabad . Epithelial cells (membranous and cytoplasmic) positivity was observed for PD-L1 Antibody. Data was analyzed in SPSS version20. For qualitative variables frequencies and percentages were calculated whereas for quantitative variables means and standard deviations were recorded. The Chi-square test was applied to evaluate the significant difference in categorical variables . p-value of ≤0.05 was taken as significant. RESULTS PD-L1 expression in OSCC cases turned out to be 48% (n=12/25) as compared to 8% of OPMD cases (n=2/25) with a significant p value of 0.002 and all non-neoplastic oral mucosa cases were negative. PD-L1 expression in high grade OSCC cases was quite high (61% n=11/18) as compared to low grade OSCC (14% n=1/7) cases with a significant p value of 0.035. CONCLUSION A statistically significant increased PD-L1 expression was noted in OSCC as compared to OPMD. Expression of PD-L1 was more intense in high grade OSCC cases. The relation of PD-L1 expression to age ,gender or location of OSCC and OPMD cases , and presence of dysplasia in OPMD cases was statistically not significant.
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Affiliation(s)
- Saleha Saeed
- Department of Oral Pathology, Senior Lecturer, Faryal Dental College, Lahore, Pakistan.
| | - Fozia Rauf
- Peshawar Medical College, Pakistan. ,For Correspondence:
| | - Fatima Iqbal
- Department of Oral Pathology, Assistant Professor, Peshawar Dental College, Peshawar, Pakistan.
| | - Abbas Saleem Khan
- Department of Oral pathology, Peshawar Dental College, Riphah International University, Pakistan.
| | - Amara Hayat Khan
- Department of Dental Education, Senior Lecturer, Peshawar Dental College, Peshawar, Pakistan.
| | - Rabia Alamgeer
- Department of Oral Pathology, Lecturer, Sardar Begum Dental College, Peshawar, Pakistan.
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Roth F, Dhiab J, Boulinguiez A, Mouigni HR, Lassche S, Negroni E, Muraine L, Marhic A, Oliver A, Lainé J, Rouche A, O'Ferrall EK, van Engelen B, Ottenheijm C, Greif H, Blumen S, Lacau St Guily J, Perie S, Butler-Browne G, Mouly V, Trollet C. Assessment of PABPN1 nuclear inclusions on a large cohort of patients and in a human xenograft model of oculopharyngeal muscular dystrophy. Acta Neuropathol 2022; 144:1157-70. [PMID: 36197469 DOI: 10.1007/s00401-022-02503-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/26/2022] [Accepted: 09/17/2022] [Indexed: 01/26/2023]
Abstract
Oculopharyngeal muscular dystrophy (OPMD) is a rare muscle disease characterized by an onset of weakness in the pharyngeal and eyelid muscles. The disease is caused by the extension of a polyalanine tract in the Poly(A) Binding Protein Nuclear 1 (PABPN1) protein leading to the formation of intranuclear inclusions or aggregates in the muscle of OPMD patients. Despite numerous studies stressing the deleterious role of nuclear inclusions in cellular and animal OPMD models, their exact contribution to human disease is still unclear. In this study, we used a large and unique collection of human muscle biopsy samples to perform an in-depth analysis of PABPN1 aggregates in relation to age, genotype and muscle status with the final aim to improve our understanding of OPMD physiopathology. Here we demonstrate that age and genotype influence PABPN1 aggregates: the percentage of myonuclei containing PABPN1 aggregates increases with age and the chaperone HSP70 co-localize more frequently with PABPN1 aggregates with a larger polyalanine tract. In addition to the previously described PRMT1 and HSP70 co-factors, we identified new components of PABPN1 aggregates including GRP78/BiP, RPL24 and p62. We also observed that myonuclei containing aggregates are larger than myonuclei without. When comparing two muscles from the same patient, a similar amount of aggregates is observed in different muscles, except for the pharyngeal muscle where fewer aggregates are observed. This could be due to the peculiar nature of this muscle which has a low level of PAPBN1 and contains regenerating fibers. To confirm the fate of PABPN1 aggregates in a regenerating muscle, we generated a xenograft model by transplanting human OPMD muscle biopsy samples into the hindlimb of an immunodeficient mouse. Xenografts from subjects with OPMD displayed regeneration of human myofibers and PABPN1 aggregates were rapidly present-although to a lower extent-after muscle fiber regeneration. Our data obtained on human OPMD samples add support to the dual non-exclusive models in OPMD combining toxic PABPN1 intranuclear inclusions together with PABPN1 loss of function which altogether result in this late-onset and muscle selective disease.
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Jawahar G, Rao GN, J BR, J A, B N, S S. Predictive Value of Anti- E6 Oncoprotein (High Risk- Human Papilloma Virus) and p16 Ink4a for Detecting HPV in Oral Epithelial Dysplasia. Asian Pac J Cancer Prev 2022; 23:3915-3922. [PMID: 36444605 PMCID: PMC9930954 DOI: 10.31557/apjcp.2022.23.11.3915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Indexed: 11/30/2022] Open
Abstract
AIM The aim of this study was to evaluate the expression of human papillomavirus (HPV) in oral potentially malignant disorders (OPMD) and to examine the association of HPV in histological grades of dysplasia using p16 and Anti-E6 oncoprotein immunohistochemistry (IHC). SUBJECTS AND METHODS This study focused on clinically diagnosed oral potentially malignant disorders. Clinical parameters such as age, gender, habits, occupation, duration, site, and the type of the lesions were examined and the incisional biopsy was done on the selected cases for the histopathological diagnosis. Selected cases of OPMDs were screened immunohistochemically for HPV 16 and HPV 18 (high-risk group) positivity using p16INK4a and Anti-E6 oncoprotein. The immunohistochemical p16 expression was evaluated based on (a) percentage of p16 positive cases and (b) pattern of p16 staining in various grades of OPMD. RESULTS Anti-E6 oncoprotein (HR-HPV) expression level was only detected in 11 cases (37%), and positive expression of p16 was found in three cases (10%), with variation in cell proportion and intensity. Subsequently, the association between p16 expression level and clinicopathological characteristic factors was analyzed and a significant association was found between age and histopathology. CONCLUSION There was an association between HPV and OPMD. Both biomarker tests, HPV E6 and p16 immunocytochemistry had a specific role in the detection of HR-HPV. Anti-E6 immunocytochemistry can be a valuable test with higher specificity for HPV DNA detection in oral epithelial dysplasia without losing sensitivity.
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Raman S, Shafie AA, Abraham MT, Shim CK, Maling TH, Rajendran S, Cheong SC. Household Catastrophic Health Expenditure from Oral Potentially Malignant Disorders and Oral Cancer in Public Healthcare of Malaysia. Asian Pac J Cancer Prev 2022; 23:1611-1618. [PMID: 35633545 DOI: 10.31557/apjcp.2022.23.5.1611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE Oral cancer causes a significant disease burden and financial distress, especially among disadvantaged groups. While Malaysia has achieved universal health coverage via its highly subsidized public healthcare, patient and family expenditure for treatment of oral potentially malignant disorders (OPMD) and oral cancer remains a concern in the equitability of care. This study thus aims to estimate household out-of-pocket (OOP) expenditures and the extent of catastrophic healthcare expenditure (CHE) while identifying its predictors. METHODS This three-part study consists of a cross-sectional survey to collect sociodemographic and health utilization data of patients, a retrospective medical record abstraction to identify resources consumed, and cost modeling to simulate expenditures in two tertiary public hospitals. Loss of productivity was calculated based on absenteeism related to disease management in the hospital. OOP payments for transport, care in public healthcare facilities, and other healthcare expenditures were tallied. A CHE was defined as OOP spendings of more than 10% from total annual household income. Multivariable logistic regression was further applied to identify the association between sociodemographic factors and the incidence of CHE. RESULTS A total of 52 patients with OPMD and 52 with oral cancer were surveyed and medical records were abstracted. A Kruskal-Wallis test showed a statistically significant difference in OOP share over household income between OPMD, early- and late-stage cancer, χ2(2)=51.05, p<0.001, with the mean percentage of 9%, 22%, and 65% respectively. This study found that the prevalence of CHE in the first year of diagnosis was 86.5% for oral cancer and 19.2% for OPMD. Indian ethnicity (OR=6.24, p=0.046) and monthly income group 'less than USD 2,722' (OR=14.32, p=0.023) were shown as significant predictors for CHE. CONCLUSIONS Our study demonstrated the provision of subsidies may not be adequate to shield the more vulnerable group from CHE when they are diagnosed with OPMD and oral cancer.
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Affiliation(s)
- Sivaraj Raman
- Discipline of Social and Administrative Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor, Penang, Malaysia.,Institute for Health Systems Research, National Institute of Health, Ministry of Health, Shah Alam, Selangor, Malaysia
| | - Asrul Akmal Shafie
- Institutional Planning and Strategic Center, Universiti Sains Malaysia, Gelugor, Penang, Malaysia
| | - Mannil Thomas Abraham
- Oral and Maxillofacial Surgery Department, Hospital Tengku Ampuan Rahimah, Ministry of Health, Klang, Selangor Malaysia
| | - Chen Kiong Shim
- Oral and Maxillofacial Surgery Department, Hospital Umum Sarawak, Ministry of Health, Kuching, Sarawak Malaysia
| | - Thaddius Herman Maling
- Samarahan Divisional Dental Office, Sarawak State Health Department, Ministry of Health, Samarahan, Sarawak, Malaysia
| | - Senthilmani Rajendran
- Digital Health Research Unit, Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | - Sok Ching Cheong
- Digital Health Research Unit, Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia.,Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
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26
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Witting N, Daugaard D, Prytz S, Biernat H, Diederichsen LP, Vissing J. Botulinum toxin treatment improves dysphagia in patients with oculopharyngeal muscular dystrophy and sporadic inclusion body myositis. J Neurol 2022; 269:4154-4160. [PMID: 35244767 DOI: 10.1007/s00415-022-11028-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/06/2022] [Accepted: 02/13/2022] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Dysphagia can be troublesome in sporadic inclusion body myositis (sIBM) and oculopharyngeal muscular dystrophy (OPMD), but no established treatment exists. Cricopharyngeal muscle botulinum toxin injection has at case level been reported to be effective. We evaluated safety and efficacy of botulinum toxin injections in the cricopharyngeal muscle in patients with dysphagia due to sIBM or OPMD. METHODS Participants were included from our outpatient clinic. Cricopharyngeal constriction was confirmed by laryngoscopy. After EMG confirmation of needle placement in the cricopharyngeal muscle, botulinum toxin A was injected in awake patients. An individualized dose of 5-10 units of botulinum toxin A was applied initially and titrated up a maximum of 3 times. Outcome measures were change in dysphagia questionnaire, timed cold-water swallow test and subjective dysphagia status (worse, unchanged, improved). Due to the need for individualized dosing and a limited number of available patients, an uncontrolled, un-blinded design was used. RESULTS Thirteen patients, 3 with OPMD, received at least 1 injection. In the dysphagia questionnaire, all but 2 subjects, none with subjective worsening, improved (p < 0.001). Subjectively, seven felt an improvement, 4 no change and 2 a worsening. No overall change was seen the timed cold-water swallow test. No serious adverse events were observed. CONCLUSION Botulinum toxin injection of the cricopharyngeal muscle in patients with OPMD and sIBM had a beneficial effect on dysphagia in most of the treated patients. Two of 13 patients experienced a temporary worsening not reflected in dysphagia score. Limitations are the un-blinded and un-randomized design and subjective assessments methods. PROSPECTIVE TRIAL REGISTRATION EudraCT-number: 2014-002210-23.
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Affiliation(s)
- N Witting
- Department of Neurology, Copenhagen Neuromuscular Center and Department of Neurology, Rigshospitalet and Copenhagen University, Copenhagen, Denmark.
| | - D Daugaard
- Department of Neurology, Bispebjerg Hospital, Copenhagen, Denmark
| | - S Prytz
- Section Bispebjerg, Foniatric Section, Department of Oto-Rhino-Laryngology, Rigshospitalet and Copenhagen University, Copenhagen, Denmark
| | - H Biernat
- Department of Neurology, Bispebjerg Hospital, Copenhagen, Denmark
| | - L P Diederichsen
- Department of Rheumatology, Rigshospitalet and Copenhagen University, Copenhagen, Denmark.,Department of Rheumatology, Odense University Hospital, Odense, Denmark
| | - J Vissing
- Department of Neurology, Copenhagen Neuromuscular Center and Department of Neurology, Rigshospitalet and Copenhagen University, Copenhagen, Denmark
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Alonso-Pérez J, de León Hernández JC, Pérez-Pérez H, Mendoza-Grimón MD, Gutierrez-Martinez AJ, Hadjigeorgiou I, Montón-Álvarez F, González-Quereda L, Alonso-Jimenez A, Suárez-Calvet X, Díaz-Manera J. Clinical and genetic features of a large homogeneous cohort of oculopharyngeal muscular dystrophy patients from the Canary Islands. Eur J Neurol 2022; 29:1488-1495. [PMID: 35112761 DOI: 10.1111/ene.15252] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/30/2021] [Accepted: 01/10/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Oculopharyngeal muscular dystrophy (OPMD) is an autosomal dominant, late-onset myopathy characterized by ptosis, dysphagia, and progressive proximal limb muscle weakness. The disease is produced by a short expansion of the (GCN)n triplet in the PABPN1 gene. The size of expansion has been correlated to the disease onset and severity. We report the clinical features of a large cohort of OPMD patients harboring the (GCN)15 allele from the Canary Islands. METHODS A retrospective observational study was performed analyzing the clinical, demographic, and genetic data of 123 OPMD patients. Clinical data from this cohort were compared with clinical data collected in a large European study including 139 OPMD patients. RESULTS A total of 113 patients (94.2%) carried the (GCN)15 expanded PABN1 allele. Age of symptoms' onset was 45.1 years. The most frequent symptom at onset was ptosis (85.2%) followed by dysphagia (12%). The severity of the disease was milder in the Canary cohort compared to European patients as limb weakness (35.1% vs. 50.4%), the proportion of patients that require assistance for walking or use a wheelchair (9.3% vs. 27.4%), and needed of surgery because of severe dysphagia (4.6% vs. 22.8%) was higher in the European cohort. CONCLUSIONS Nearly 95% of patients with OPMD from the Canary Islands harbored the (GCN)15 expanded allele supporting a potential founder effect. Disease progression seemed to be milder in the (GCN)15 OPMD Canary cohort than in other cohorts with shorter expansions suggesting that other factors, apart from the expansion size, could be involved in the progression of the disease.
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Affiliation(s)
- Jorge Alonso-Pérez
- Neuromuscular Diseases Unit, Department of Neurology, Department of Medicine, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Department of Neurology, Hospital Universitario Nuestra Señora de la Candelaria, Santa Cruz de Tenerife, Spain
| | | | - Helena Pérez-Pérez
- Department of Neurology, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | - María Dolores Mendoza-Grimón
- Department of Neurology, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, Spain
| | | | | | - Fernando Montón-Álvarez
- Department of Neurology, Hospital Universitario Nuestra Señora de la Candelaria, Santa Cruz de Tenerife, Spain
| | - Lidia González-Quereda
- Genetics Department, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
| | - Alicia Alonso-Jimenez
- Neuromuscular Reference Center, Department of Neurology, Antwerp University Hospital, Antwerp, Belgium
| | - Xavier Suárez-Calvet
- Neuromuscular Diseases Unit, Department of Neurology, Department of Medicine, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
| | - Jordi Díaz-Manera
- Neuromuscular Diseases Unit, Department of Neurology, Department of Medicine, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain.,John Walton Muscular Dystrophy Research Centre, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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Abstract
Approximately 15% of cancers are attributable to the inflammatory process, and growing evidence supports an association between oral squamous cell carcinoma (OSCC) and chronic inflammation. Different oral inflammatory conditions, such as oral lichen planus (OLP), submucous fibrosis, and oral discoid lupus, are all predisposing for the development of OSCC. The microenvironment of these conditions contains various transcription factors and inflammatory mediators with the ability to induce proliferation, epithelial-to-mesenchymal transition (EMT), and invasion of genetically predisposed lesions, thereby promoting tumor development. In this review, we will focus on the main inflammatory molecules and transcription factors activated in OSCC, with emphasis on their translational potential.
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Affiliation(s)
- Sven E Niklander
- Unidad de Patologia y Medicina Oral, Facultad de Odontologia, Universidad Andres Bello, Viña del Mar, Chile
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Mazur M, Ndokaj A, Venugopal DC, Roberto M, Albu C, Jedliński M, Tomao S, Vozza I, Trybek G, Ottolenghi L, Guerra F. In Vivo Imaging-Based Techniques for Early Diagnosis of Oral Potentially Malignant Disorders-Systematic Review and Meta-Analysis. Int J Environ Res Public Health 2021; 18:11775. [PMID: 34831531 DOI: 10.3390/ijerph182211775] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/04/2021] [Accepted: 11/08/2021] [Indexed: 12/24/2022]
Abstract
Objectives: Oral potentially malignant disorders (OPMDs) are lesions that may undergo malignant transformation to oral cancer. The early diagnosis and surveillance of OPMDs reduce the morbidity and mortality of patients. Diagnostic techniques based on medical images analysis have been developed to diagnose clinical conditions. This systematic review and meta-analysis aimed to evaluate the efficacy of imaging-based techniques compared to the gold standard of histopathology to assess their ability to correctly identify the presence of OPMDs. Design: Literature searches of free text and MeSH terms were performed using MedLine (PubMed), Scopus, Google Scholar, and the Cochrane Library (from 2000 to 30 June 2020). The keywords used in the search strategy were: (“oral screening devices” or “autofluorescence” or “chemiluminescence” or “optical imaging” or “imaging technique”) and (“oral dysplasia” or “oral malignant lesions” or “oral precancerosis”). Results: The search strategy identified 1282 potential articles. After analyzing the results and applying the eligibility criteria, the remaining 43 papers were included in the qualitative synthesis, and 34 of these were included in the meta-analysis. Conclusions: None of the analyzed techniques based on assessing oral images can replace the biopsy. Further studies are needed to explore the role of techniques-based imaging analysis to identify an early noninvasive screening method.
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Amarasinghe H, Rathnapriya M, Abeysundara A, Jayaweera S, Jayathilake A, Jayasinghe R. Assessment of the oral cancer control activities through care seeking behavior of hospital attendees and their level of awareness. J Oral Biol Craniofac Res 2021; 11:536-540. [PMID: 34377662 DOI: 10.1016/j.jobcr.2021.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/26/2021] [Accepted: 07/15/2021] [Indexed: 11/17/2022] Open
Abstract
Oral cancer is the most common cancer among males in the Sri Lankan population. The aim of this study was to assess the health seeking behaviors and associated factors for OPMD. A hospital based descriptive cross-sectional study was conducted among Out Patients Department attendees of the Institute of Oral Health, Maharagama, from July 1, 2018 to December 31, 2019 by administering a questionnaire followed by an intra oral examination. The total number of 110 OPMD/oral cancer patients were identified. Awareness on OPMD was that 40 %. Majority were unaware of the danger of areca nut and alcohol use. Out of the identified cases during oral examination, 47.3 % were incidental findings while only 7.3 % were referred by the General Medical Practitioners (GMP). None were referred by the Primary Health Care (PHC) staff. The level of awareness on OPMD and its risk factors were very low. Incidental findings during the dental screening being the main mode of detection of OPMD, highlights the importance of conducting opportunistic screening at dental settings. Implementation of the Risk Factor Model (RFM) approach for the early detection of oral cancer through PHC staff and GMP is validated to encourage more early referrals.
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Affiliation(s)
| | | | | | | | | | - Ruwan Jayasinghe
- Department of Oral Medicine and Periodontology, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
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Su YF, Chen YJ, Tsai FT, Li WC, Hsu ML, Wang DH, Yang CC. Current Insights into Oral Cancer Diagnostics. Diagnostics (Basel) 2021; 11:1287. [PMID: 34359370 DOI: 10.3390/diagnostics11071287] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 06/30/2021] [Accepted: 07/13/2021] [Indexed: 12/16/2022] Open
Abstract
Oral cancer is one of the most common head and neck malignancies and has an overall 5-year survival rate that remains below 50%. Oral cancer is generally preceded by oral potentially malignant disorders (OPMDs) but determining the risk of OPMD progressing to cancer remains a difficult task. Several diagnostic technologies have been developed to facilitate the detection of OPMD and oral cancer, and some of these have been translated into regulatory-approved in vitro diagnostic systems or medical devices. Furthermore, the rapid development of novel biomarkers, electronic systems, and artificial intelligence may help to develop a new era where OPMD and oral cancer are detected at an early stage. To date, a visual oral examination remains the routine first-line method of identifying oral lesions; however, this method has certain limitations and as a result, patients are either diagnosed when their cancer reaches a severe stage or a high-risk patient with OPMD is misdiagnosed and left untreated. The purpose of this article is to review the currently available diagnostic methods for oral cancer as well as possible future applications of novel promising technologies to oral cancer diagnosis. This will potentially increase diagnostic options and improve our ability to effectively diagnose and treat oral cancerous-related lesions.
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Singh V, Varma K, Bhargava M, Misra V, Singh M, Singh R. Evaluation of Role of Visual Inspection Using Acetic Acid (VIA) and Exfoliative Cytology in Screening and Early Detection of Oral Premalignant Lesions and Oral Cancer. Asian Pac J Cancer Prev 2021; 22:2273-2278. [PMID: 34319052 PMCID: PMC8607076 DOI: 10.31557/apjcp.2021.22.7.2273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Indexed: 12/02/2022] Open
Abstract
Objective: Oral cancer accounts for 50–70% of total cancer mortality. VIA screening has drastically changed the morbidity and mortality related to cervical cancer. In present study, we assessed the role of 5% Acetic Acid as a vital stain in oral mucosa of chronic tobacco chewers, to know if it can help in early diagnosis and improved prognosis of oral malignancies and to assess the sensitivity and specificity of VIA and exfoliative cytology for screening of Oral premalignant and malignant lesions in high risk population with limited health care infrastructure. Methods: This was an outpatient department based prospective study done in a tertiary hospital over a period of two years. 150 cases with a history of chronic tobacco use were evaluated. Visual inspection (VI) followed by VIA using 5% Acetic acid was done. Oral scrapes were taken for cytological examination followed by biopsy for histopathological evaluation, wherever possible. Results: Sensitivity, specificity, PPV, NPV and accuracy of VIA and Exfoliative cytology was 71%, 65%, 83%, 48%, 69% and 98%, 65%, 89%, 92%, 88% respectively keeping histology as gold standard. Conclusion: Acetic acid along with exfoliative cytology can be used as simple, cost effective and convenient methods for mass screening of OPMDs and OSCC in high risk population where biopsy is not possible.
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Affiliation(s)
- Vasudha Singh
- Department of Pathology, M.L.N. Medical College, Allahabad, India
| | - Kachnar Varma
- Department of Pathology, M.L.N. Medical College, Allahabad, India
| | - Mudita Bhargava
- Department of Pathology, M.L.N. Medical College, Allahabad, India
| | - Vatsala Misra
- Department of Pathology, M.L.N. Medical College, Allahabad, India
| | - Mangal Singh
- Departement of E.N.T., M.L.N. Medical College, Allahabad, India
| | - Richa Singh
- Department of Community Medicine, M.L.N. Medical College, Allahabad, India
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Bamia A, Sinane M, Naït-Saïdi R, Dhiab J, Keruzoré M, Nguyen PH, Bertho A, Soubigou F, Halliez S, Blondel M, Trollet C, Simonelig M, Friocourt G, Béringue V, Bihel F, Voisset C. Anti-prion Drugs Targeting the Protein Folding Activity of the Ribosome Reduce PABPN1 Aggregation. Neurotherapeutics 2021; 18:1137-1150. [PMID: 33533011 PMCID: PMC8423950 DOI: 10.1007/s13311-020-00992-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2020] [Indexed: 01/10/2023] Open
Abstract
Prion diseases are caused by the propagation of PrPSc, the pathological conformation of the PrPC prion protein. The molecular mechanisms underlying PrPSc propagation are still unsolved and no therapeutic solution is currently available. We thus sought to identify new anti-prion molecules and found that flunarizine inhibited PrPSc propagation in cell culture and significantly prolonged survival of prion-infected mice. Using an in silico therapeutic repositioning approach based on similarities with flunarizine chemical structure, we tested azelastine, duloxetine, ebastine, loperamide and metixene and showed that they all have an anti-prion activity. Like flunarizine, these marketed drugs reduced PrPSc propagation in cell culture and in mouse cerebellum organotypic slice culture, and inhibited the protein folding activity of the ribosome (PFAR). Strikingly, some of these drugs were also able to alleviate phenotypes due to PABPN1 nuclear aggregation in cell and Drosophila models of oculopharyngeal muscular dystrophy (OPMD). These data emphasize the therapeutic potential of anti-PFAR drugs for neurodegenerative and neuromuscular proteinopathies.
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Affiliation(s)
- Aline Bamia
- Inserm, Univ Brest, EFS, UMR 1078, GGB, F-29200, Brest, France
| | - Maha Sinane
- Inserm, Univ Brest, EFS, UMR 1078, GGB, F-29200, Brest, France
| | - Rima Naït-Saïdi
- Institute of Human Genetics, UMR9002 CNRS-Univ Montpellier, mRNA Regulation and Development, Montpellier, France
| | - Jamila Dhiab
- Sorbanne Université, Inserm, Institut de Myologie, Centre de Recherche en Myologie, F75013, Paris, France
| | - Marc Keruzoré
- Inserm, Univ Brest, EFS, UMR 1078, GGB, F-29200, Brest, France
| | - Phu Hai Nguyen
- Inserm, Univ Brest, EFS, UMR 1078, GGB, F-29200, Brest, France
- Host Parasite Interactions Section, Laboratory of Intracellular Parasites, NIAID, NIH, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Agathe Bertho
- Inserm, Univ Brest, EFS, UMR 1078, GGB, F-29200, Brest, France
| | - Flavie Soubigou
- Inserm, Univ Brest, EFS, UMR 1078, GGB, F-29200, Brest, France
- Centre for Gene Regulation and Expression, Sir James Black Centre, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK
| | - Sophie Halliez
- INRAE, UVSQ, VIM, Université Paris-Saclay, Jouy-en-Josas, France
- Inserm, CHU Lille, U1172 - LilNCog - Lille Neuroscience & Cognition, Univ. Lille, F-59000, Lille, France
| | - Marc Blondel
- Inserm, Univ Brest, EFS, UMR 1078, GGB, F-29200, Brest, France
| | - Capucine Trollet
- Sorbanne Université, Inserm, Institut de Myologie, Centre de Recherche en Myologie, F75013, Paris, France
| | - Martine Simonelig
- Institute of Human Genetics, UMR9002 CNRS-Univ Montpellier, mRNA Regulation and Development, Montpellier, France
| | | | - Vincent Béringue
- INRAE, UVSQ, VIM, Université Paris-Saclay, Jouy-en-Josas, France
| | - Frédéric Bihel
- Laboratoire d'Innovation Thérapeutique, LIT, UMR7200, IMS MEDALIS, Faculty of Pharmacy, CNRS, Université de Strasbourg, Illkirch, F-67400, France.
| | - Cécile Voisset
- Inserm, Univ Brest, EFS, UMR 1078, GGB, F-29200, Brest, France.
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Strings-Ufombah V, Malerba A, Kao SC, Harbaran S, Roth F, Cappellari O, Lu-Nguyen N, Takahashi K, Mukadam S, Kilfoil G, Kloth C, Roelvink P, Dickson G, Trollet C, Suhy D. BB-301: a silence and replace AAV-based vector for the treatment of oculopharyngeal muscular dystrophy. Mol Ther Nucleic Acids 2021; 24:67-78. [PMID: 33738139 PMCID: PMC7940701 DOI: 10.1016/j.omtn.2021.02.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 02/14/2021] [Indexed: 11/08/2022]
Abstract
Oculopharyngeal muscular dystrophy (OPMD) is a rare autosomal dominant disease that results from an alanine expansion in the N-terminal domain of Poly-A Binding Protein Nuclear-1 (PABPN1). We have recently demonstrated that a two-vector gene therapy strategy significantly ameliorated the pathology in a mouse model of OPMD. This approach entailed intramuscular injection of two recombinant adeno-associated viruses (AAVs), one expressing three short hairpin RNAs (shRNAs) to silence both mutant and wild-type PABPN1 and one expressing a codon-optimized version of PABPN1 that is insensitive to RNA interference. Here we report the continued development of this therapeutic strategy by delivering “silence and replace” sequences in a single AAV vector named BB-301. This construct is composed of a modified AAV serotype 9 (AAV9) capsid that expresses a unique single bifunctional construct under the control of the muscle-specific Spc5-12 promoter for the co-expression of both the codon-optimized PABPN1 protein and two small inhibitory RNAs (siRNAs) against PABPN1 modeled into microRNA (miRNA) backbones. A single intramuscular injection of BB-301 results in robust inhibition of mutant PABPN1 and concomitant replacement of the codon-optimized PABPN1 protein. The treatment restores muscle strength and muscle weight to wild-type levels as well as improving other physiological hallmarks of the disease in a mouse model of OPMD.
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Affiliation(s)
| | - Alberto Malerba
- Department of Biological Sciences, School of Life Sciences and the Environment, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
| | | | | | - Fanny Roth
- Sorbonne Université, INSERM, Association Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Ornella Cappellari
- Department of Biological Sciences, School of Life Sciences and the Environment, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
| | - Ngoc Lu-Nguyen
- Department of Biological Sciences, School of Life Sciences and the Environment, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
| | | | | | | | | | | | - George Dickson
- Department of Biological Sciences, School of Life Sciences and the Environment, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
| | - Capucine Trollet
- Sorbonne Université, INSERM, Association Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - David Suhy
- Benitec Biopharma, Inc., Hayward, CA 94545, USA
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Kumar K, Khandpur M, Khandpur S, Mehrotra D, Chandra Tiwari S, Kumar S. Quality of life among Oral Potentially Malignant Disorder ( OPMD) patients: A prospective study. J Oral Biol Craniofac Res 2020; 11:88-91. [PMID: 33384918 DOI: 10.1016/j.jobcr.2020.11.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 11/06/2020] [Indexed: 11/29/2022] Open
Abstract
Objective The purpose of this study was to evaluate the quality of life among the Oral Potentially Malignant Disorder (OPMD) patients during diagnosis, at one month and 3 months after intervention (surgical or conservative). Methods The University of Washington Quality of Life version (4UWQOL v4) and World Health Organization (WHO-BREF) were repeatedly administered on 54 OPMD patients. Results The results of Friedman's ANOVA showed a statistically significant change in the mean scores for pain, activity, speech, shoulder, taste, saliva, mood, and anxiety domains of UWQOL with time, (p-value <0.05); while physical health, social relationships, environment domains of WHO- BREF have shown significant changes in their respective mean scores. Conclusion The assessment of Quality of Life (QOL) should routinely be done by the clinicians. If the clinicians start considering the QOL as the primary outcome of a treatment protocol, it will enhance patients' identity, well-being, and personality.
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Affiliation(s)
- Kapila Kumar
- Department of Oral & Maxillofacial Surgery, King George's Medical University, Lucknow, UP, India
| | - Mani Khandpur
- Department of Oral & Maxillofacial Surgery, King George's Medical University, Lucknow, UP, India
| | - Sukhanshi Khandpur
- Department of Molecular Medicine & Biotechnology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, UP, India
| | - Divya Mehrotra
- Department of Oral & Maxillofacial Surgery, King George's Medical University, Lucknow, UP, India
| | - Sarvada Chandra Tiwari
- Department of Geriatric Mental Health, King George's Medical University, Lucknow, UP, India
| | - Sumit Kumar
- Department of Health Research- Multidisciplinary Research Unit (DHR-MRU), King George's Medical University, Lucknow, UP, India
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Raz V, Kroon RHMJM, Mei H, Riaz M, Buermans H, Lassche S, Horlings C, Swart BD, Kalf J, Harish P, Vissing J, Kielbasa S, van Engelen BGM. Age-Associated Salivary MicroRNA Biomarkers for Oculopharyngeal Muscular Dystrophy. Int J Mol Sci 2020; 21:ijms21176059. [PMID: 32842713 PMCID: PMC7503697 DOI: 10.3390/ijms21176059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/10/2020] [Accepted: 08/18/2020] [Indexed: 12/30/2022] Open
Abstract
Small non-coding microRNAs (miRNAs) are involved in the regulation of mRNA stability. Their features, including high stability and secretion to biofluids, make them attractive as potential biomarkers for diverse pathologies. This is the first study reporting miRNA as potential biomarkers for oculopharyngeal muscular dystrophy (OPMD), an adult-onset myopathy. We hypothesized that miRNA that is differentially expressed in affected muscles from OPMD patients is secreted to biofluids and those miRNAs could be used as biomarkers for OPMD. We first identified candidate miRNAs from OPMD-affected muscles and from muscles from an OPMD mouse model using RNA sequencing. We then compared the OPMD-deregulated miRNAs to the literature and, subsequently, we selected a few candidates for expression studies in serum and saliva biofluids using qRT-PCR. We identified 126 miRNAs OPMD-deregulated in human muscles, but 36 deregulated miRNAs in mice only (pFDR < 0.05). Only 15 OPMD-deregulated miRNAs overlapped between the in humans and mouse studies. The majority of the OPMD-deregulated miRNAs showed opposite deregulation direction compared with known muscular dystrophies miRNAs (myoMirs), which are associated. In contrast, similar dysregulation direction was found for 13 miRNAs that are common between OPMD and aging muscles. A significant age-association (p < 0.05) was found for 17 OPMD-deregulated miRNAs (13.4%), whereas in controls, only six miRNAs (1.4%) showed a significant age-association, suggesting that miRNA expression in OPMD is highly age-associated. miRNA expression in biofluids revealed that OPMD-associated deregulation in saliva was similar to that in muscles, but not in serum. The same as in muscle, miRNA expression levels in saliva were also found to be associated with age (p < 0.05). Moreover, the majority of OPMD-miRNAs were found to be associated with dysphagia as an initial symptom. We suggest that levels of specific miRNAs in saliva can mark muscle degeneration in general and dysphagia in OPMD.
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Affiliation(s)
- Vered Raz
- Department of Human Genetics, Leiden University Medical Centre, 2333ZC Leiden, The Netherlands; (M.R.); (H.B.)
- Correspondence:
| | - Rosemarie H. M. J. M. Kroon
- Radboud University Medical Center, Department of Rehabilitation, Donders Institute for Brain, Cognition and Behaviour, 6525AJ Nijmegen, The Netherlands; (R.H.M.J.M.K.); (B.D.S.); (J.K.)
| | - Hailiang Mei
- Sequence Analysis Support Core, Leiden University Medical Centre, 2333ZC Leiden, The Netherlands; (H.M.); (S.K.)
| | - Muhammad Riaz
- Department of Human Genetics, Leiden University Medical Centre, 2333ZC Leiden, The Netherlands; (M.R.); (H.B.)
| | - Henk Buermans
- Department of Human Genetics, Leiden University Medical Centre, 2333ZC Leiden, The Netherlands; (M.R.); (H.B.)
| | - Saskia Lassche
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, 6525AJ Nijmegen, The Netherlands; (S.L.); (C.H.); (B.G.M.v.E.)
| | - Corinne Horlings
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, 6525AJ Nijmegen, The Netherlands; (S.L.); (C.H.); (B.G.M.v.E.)
| | - Bert De Swart
- Radboud University Medical Center, Department of Rehabilitation, Donders Institute for Brain, Cognition and Behaviour, 6525AJ Nijmegen, The Netherlands; (R.H.M.J.M.K.); (B.D.S.); (J.K.)
| | - Johanna Kalf
- Radboud University Medical Center, Department of Rehabilitation, Donders Institute for Brain, Cognition and Behaviour, 6525AJ Nijmegen, The Netherlands; (R.H.M.J.M.K.); (B.D.S.); (J.K.)
| | - Pradeep Harish
- Centre of Gene and Cell Therapy, Royal Holloway, University of London, Egham TW2 0EX, UK;
| | - John Vissing
- The Copenhagen Neuromuscular Center, Righospitalet, University of Copenhagen, DK-2100 Copenhagen, Denmark;
| | - Szymon Kielbasa
- Sequence Analysis Support Core, Leiden University Medical Centre, 2333ZC Leiden, The Netherlands; (H.M.); (S.K.)
| | - Baziel G. M. van Engelen
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, 6525AJ Nijmegen, The Netherlands; (S.L.); (C.H.); (B.G.M.v.E.)
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Jayasinghe RD, Hettiarachchi PVKS, Amugoda D, Kumaraarachchi M, Liyanage RLPR, Siriwardena BSMS, Gunasena R, Karunatilake AHTS, Amarasinghe HK. Validity of Toluidine Blue test as a diagnostic tool for high risk oral potentially malignant disorders- a multicentre study in Sri Lanka. J Oral Biol Craniofac Res 2020; 10:547-551. [PMID: 32923360 DOI: 10.1016/j.jobcr.2020.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/26/2020] [Accepted: 08/05/2020] [Indexed: 12/28/2022] Open
Abstract
Introduction - Early detection plays a major role to reduce the mortality of oral squamous cell carcinoma (OSCC). Many adjunctive techniques have emerged with claims of differentiating high risk oral potentially malignant disorders (OPMDs) from benign lesions. Toluidine blue (TB) test has been established as a diagnostic adjunct in detecting high risk OPMDs and early asymptomatic OSCCs. As majority of OSCC are preceded by OPMDs, recognition of them at an early stage is important in the management of this devastating disease. Methods -This study was conducted as a multi-center study prospectively for a period of 2 years. Sixty five patients presented with OPMDs were selected and TB test was performed followed by a biopsy for histopathological confirmation. Criterion validity was assessed with histological diagnosis of the incisional biopsy of the OPMD as a gold standard test verses TB test results. Results The sensitivity of the TB test was 68.3% and the specificity 63.1% with a false positive rate of 36.8% and false negative rate of 31.7%. However, the predictive value of the positive test was 80%. Conclusion - TB testing might be a potential adjunct diagnostic aid in identifying high risk OPMDs. Further studies with extensive sample size and different demographics are needed to validate our findings.
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Affiliation(s)
- R D Jayasinghe
- Department of Oral Medicine and Periodontology, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka.,Centre for Research in Oral cancer, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | - P V K S Hettiarachchi
- Department of Oral Medicine and Periodontology, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka.,Centre for Research in Oral cancer, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | | | | | | | - B S M S Siriwardena
- Centre for Research in Oral cancer, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka.,Department of Oral Pathology, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | | | | | - H K Amarasinghe
- Centre for Research in Oral cancer, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka.,Institute of Oral Health, Maharagama, Sri Lanka
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Harish P, Forrest L, Herath S, Dickson G, Malerba A, Popplewell L. Inhibition of Myostatin Reduces Collagen Deposition in a Mouse Model of Oculopharyngeal Muscular Dystrophy ( OPMD) With Established Disease. Front Physiol 2020; 11:184. [PMID: 32194441 PMCID: PMC7066371 DOI: 10.3389/fphys.2020.00184] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 02/17/2020] [Indexed: 12/12/2022] Open
Abstract
Background Oculopharyngeal muscular dystrophy (OPMD) is a late-onset muscle disease presented by ptosis, dysphagia, and limb weakness. Affected muscles display increased fibrosis and atrophy, with characteristic inclusion bodies in the nucleus. Myostatin is a negative regulator of muscle mass, and inhibition of myostatin has been demonstrated to improve symptoms in models of muscular dystrophy. Methods We systemically administered a monoclonal antibody to block myostatin in the A17 mouse model of OPMD at 42 weeks of age. The mice were administered a weekly dose of 10 mg/kg RK35 intraperitonially for 10 weeks, following which serum and histological analyses were performed on muscle samples. Results The administration of the antibody resulted in a significant decrease in serum myostatin and collagen deposition in muscles. However, minimal effects on body mass, muscle mass and myofiber diameter, or the density of intranuclear inclusions (INIs) (a hallmark of disease progression of OPMD) were observed. Conclusion This study demonstrates that inhibition of myostatin does not revert muscle atrophy in a mouse model with established OPMD disease, but is effective at reducing observed histological markers of fibrosis in the treated muscles.
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Affiliation(s)
- Pradeep Harish
- Department of Biological Sciences, Centre of Gene and Cell Therapy and Biomedical Sciences, Royal Holloway, University of London, Egham, United Kingdom
| | - Leysa Forrest
- Department of Biological Sciences, Centre of Gene and Cell Therapy and Biomedical Sciences, Royal Holloway, University of London, Egham, United Kingdom
| | - Shanti Herath
- Department of Biological Sciences, Centre of Gene and Cell Therapy and Biomedical Sciences, Royal Holloway, University of London, Egham, United Kingdom
| | - George Dickson
- Department of Biological Sciences, Centre of Gene and Cell Therapy and Biomedical Sciences, Royal Holloway, University of London, Egham, United Kingdom
| | - Alberto Malerba
- Department of Biological Sciences, Centre of Gene and Cell Therapy and Biomedical Sciences, Royal Holloway, University of London, Egham, United Kingdom
| | - Linda Popplewell
- Department of Biological Sciences, Centre of Gene and Cell Therapy and Biomedical Sciences, Royal Holloway, University of London, Egham, United Kingdom
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Wang L, Yin P, Wang J, Wang Y, Sun Z, Zhou Y, Guan X. Delivery of mesenchymal stem cells-derived extracellular vesicles with enriched miR-185 inhibits progression of OPMD. Artif Cells Nanomed Biotechnol 2019; 47:2481-2491. [PMID: 31219352 DOI: 10.1080/21691401.2019.1623232] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Oral leukoplakia is one of the most common oral potentially malignant disorders (OPMDs) and its malignant transformation to oral cancer is highly associated with chronic inflammation. Extracellular vesicles (EVs) or exosome-delivered microRNAs modulate inflammatory responses and alleviate irritations that predisposes to cancer. We previously reported that microRNA-185 (miR-185) was significantly decreased in the buccal tissue of patients with oral cancer. In this study, we utilized genetically modified mesenchymal stem cells (MSCs) derived EVs with high expression of miR-185 to pasted MSC-EV-miR-185 on buccal lesions in dimethylbenzanthracene (DMBA) induced OPMD model. We found that treatment with MSC-EV-miR-185 remarkably attenuated inflammation severity and significantly decreased the incidence and the number of dysplasia in the OPMD tissue. Immunohistochemistry showed significantly decreased expression of proliferation marker PCNA and angiogenic marker CD31 in the lesion treated with MSC-EV-miR-185. Furthermore, miR-185 specifically targeted Akt genes by promoting activation of the apoptotic pathway, confirmed by the increased levels of activated caspase-3 and 9. In conclusion, genetically modified MSC-derived EVs enriched with miR-185 alleviate inflammatory response, inhibit cell proliferation and angiogenesis, and induce cell apoptosis, suggesting that their potential role as a novel therapeutic option for OPMD.
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Affiliation(s)
- Lin Wang
- a Beijing Stomatological Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Panpan Yin
- a Beijing Stomatological Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Jiaqi Wang
- a Beijing Stomatological Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Yuanyuan Wang
- a Beijing Stomatological Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Zheng Sun
- a Beijing Stomatological Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Yu Zhou
- b Genexosome Technologies Inc. , Freehold , NJ , USA.,c Beijing Lu Daopei Institute of Hematology , Beijing , People's Republic of China
| | - Xiaobing Guan
- a Beijing Stomatological Hospital, Capital Medical University , Beijing , People's Republic of China
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40
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Harish P, Malerba A, Lu-Nguyen N, Forrest L, Cappellari O, Roth F, Trollet C, Popplewell L, Dickson G. Inhibition of myostatin improves muscle atrophy in oculopharyngeal muscular dystrophy ( OPMD). J Cachexia Sarcopenia Muscle 2019; 10:1016-1026. [PMID: 31066242 PMCID: PMC6818462 DOI: 10.1002/jcsm.12438] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 03/21/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Oculopharyngeal muscular dystrophy (OPMD) is a late-onset muscle disease affecting one per 80 000 of the general population characterized by profound dysphagia and ptosis, and limb weakness at later stages. Affected muscles are characterized by increased fibrosis and atrophy. Myostatin is a negative regulator of muscle mass, and inhibition of myostatin has been demonstrated to ameliorate symptoms in dystrophic muscles. METHODS In this study, we performed a systemic delivery of a monoclonal antibody to immunologically block myostatin in the A17 mouse model of OPMD. The mice were administered a weekly dose of 10 mg/kg RK35 intraperitonially for 10 weeks, following which histological analyses were performed on the samples. RESULTS This treatment significantly (P < 0.01) improved body mass (11%) and muscle mass (for the tibialis anterior and extensor digitorum longus by 19% and 41%) in the A17 mice treated with RK35 when compared to saline controls. Similarly, a significantly (P < 0.01) increased muscle strength (18% increase in maximal tetanic force) and myofibre diameter (17% and 44% for the tibialis anterior and extensor digitorum longus), and reduced expression of markers of muscle fibrosis (40% reduction in area of expression), was also observed. No change in the density of intranuclear inclusions (a hallmark of disease progression of OPMD) was however observed. CONCLUSIONS Our study supports the clinical translation of such antibody-mediated inhibition of myostatin as a treatment of OPMD. This strategy has implications to be used as adjuvant therapies with gene therapy based approaches, or to stabilize the muscle prior to myoblast transplantation.
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Affiliation(s)
- Pradeep Harish
- Centres of Gene and Cell Therapy and Biomedical Sciences, School of Biological Sciences, Royal Holloway-University of London, Surrey, UK
| | - Alberto Malerba
- Centres of Gene and Cell Therapy and Biomedical Sciences, School of Biological Sciences, Royal Holloway-University of London, Surrey, UK
| | - Ngoc Lu-Nguyen
- Centres of Gene and Cell Therapy and Biomedical Sciences, School of Biological Sciences, Royal Holloway-University of London, Surrey, UK
| | - Leysa Forrest
- Centres of Gene and Cell Therapy and Biomedical Sciences, School of Biological Sciences, Royal Holloway-University of London, Surrey, UK
| | | | - Fanny Roth
- Association Institut de Myologie, Centre de Recherche en Myologie UMRS974, Sorbonne Université, INSERM, Paris, France
| | - Capucine Trollet
- Association Institut de Myologie, Centre de Recherche en Myologie UMRS974, Sorbonne Université, INSERM, Paris, France
| | - Linda Popplewell
- Centres of Gene and Cell Therapy and Biomedical Sciences, School of Biological Sciences, Royal Holloway-University of London, Surrey, UK
| | - George Dickson
- Centres of Gene and Cell Therapy and Biomedical Sciences, School of Biological Sciences, Royal Holloway-University of London, Surrey, UK
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Alonso-Jimenez A, Kroon RHMJM, Alejaldre-Monforte A, Nuñez-Peralta C, Horlings CGC, van Engelen BGM, Olivé M, González L, Verges-Gil E, Paradas C, Márquez C, Garibaldi M, Gallano P, Rodriguez MJ, Gonzalez-Quereda L, Dominguez Gonzalez C, Vissing J, Fornander F, Eisum ASV, García-Sobrino T, Pardo J, García-Figueiras R, Muelas N, Vilchez JJ, Kapetanovic S, Tasca G, Monforte M, Ricci E, Gomez MT, Bevilacqua JA, Diaz-Jara J, Zamorano II, Carlier RY, Laforet P, Pelayo-Negro A, Ramos-Fransi A, Martínez A, Marini-Bettolo C, Straub V, Gutiérrez G, Stojkovic T, Martín MA, Morís G, Fernández-Torrón R, Lopez De Munaín A, Cortes-Vicente E, Querol L, Rojas-García R, Illa I, Diaz-Manera J. Muscle MRI in a large cohort of patients with oculopharyngeal muscular dystrophy. J Neurol Neurosurg Psychiatry 2019; 90:576-585. [PMID: 30530568 DOI: 10.1136/jnnp-2018-319578] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/13/2018] [Accepted: 11/19/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVE Oculopharyngeal muscular dystrophy (OPMD) is a genetic disorder caused by an abnormal expansion of GCN triplets within the PABPN1 gene. Previous descriptions have focused on lower limb muscles in small cohorts of patients with OPMD, but larger imaging studies have not been performed. Previous imaging studies have been too small to be able to correlate imaging findings to genetic and clinical data. METHODS We present cross-sectional, T1-weighted muscle MRI and CT-scan data from 168 patients with genetically confirmed OPMD. We have analysed the pattern of muscle involvement in the disease using hierarchical analysis and presented it as heatmaps. Results of the scans were correlated with genetic and clinical data. RESULTS Fatty replacement was identified in 96.7% of all symptomatic patients. The tongue, the adductor magnus and the soleus were the most commonly affected muscles. Muscle pathology on MRI correlated positively with disease duration and functional impairment. CONCLUSIONS We have described a pattern that can be considered characteristic of OPMD. An early combination of fat replacement in the tongue, adductor magnus and soleus can be helpful for differential diagnosis. The findings suggest the natural history of the disease from a radiological point of view. The information generated by this study is of high diagnostic value and important for clinical trial development.
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Affiliation(s)
- Alicia Alonso-Jimenez
- Neuromuscular Disorders Unit, Neurology Department, Hospital de la Santa Creu I Sant Pau, Universidad Autónoma de Barcelona, Barcelona, Spain
| | | | | | | | - Corinne G C Horlings
- Neurology Department, Radboud university Medical Center, Nijmegen, The Netherlands
| | | | - Montse Olivé
- Pathology Department (Neuropathology), Neuromuscular Disorders Unit, IDIBELL, Hospital de Bellvitge, Barcelona, Spain
| | - Laura González
- Pathology Department (Neuropathology), Neuromuscular Disorders Unit, IDIBELL, Hospital de Bellvitge, Barcelona, Spain
| | - Enric Verges-Gil
- Pathology Department (Neuropathology), Neuromuscular Disorders Unit, IDIBELL, Hospital de Bellvitge, Barcelona, Spain
| | - Carmen Paradas
- Neuromuscular Disorders Unit, Neurology Department, Hospital Universitario Virgen del Rocío, Instituto de Biomedicina de Sevilla, Sevilla, Spain
| | - Celedonio Márquez
- Neuromuscular Disorders Unit, Neurology Department, Hospital Universitario Virgen del Rocío, Instituto de Biomedicina de Sevilla, Sevilla, Spain
| | - Matteo Garibaldi
- Neuromuscular Disorders Unit, Department of Neurology, Mental Health and Sensory Organs (NESMOS), SAPIENZA University of Rome, Ospedale Sant'Andrea, Rome, Italy
| | - Pía Gallano
- Genetic Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
| | | | - Lidia Gonzalez-Quereda
- Genetic Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
| | - Cristina Dominguez Gonzalez
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain.,Neuromuscular Disorders Unit, Neurology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - John Vissing
- Copenhagen Neuromuscular Center, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Freja Fornander
- Copenhagen Neuromuscular Center, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Anne-Sofie Vibæk Eisum
- Copenhagen Neuromuscular Center, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | | | - Julio Pardo
- Neurology Department, Hospital Clínico, Santiago de Compostela, Spain
| | | | - Nuria Muelas
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain.,Neuromuscular Research Unit, Neurology Department, Instituto de Investigación Sanitaria la Fe, Hospital Universitari i Politécnic La Fe, Valencia, Spain
| | - Juan Jesús Vilchez
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain.,Neuromuscular Research Unit, Neurology Department, Instituto de Investigación Sanitaria la Fe, Hospital Universitari i Politécnic La Fe, Valencia, Spain
| | | | - Giorgio Tasca
- Unità Operativa Complessa di Neurologia, Fondazione Policlinico Universitario A, Gemelli IRCCS, Roem, Italy
| | - Mauro Monforte
- Unità Operativa Complessa di Neurologia, Fondazione Policlinico Universitario A, Gemelli IRCCS, Roem, Italy.,Istituto di Neurologia, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Enzo Ricci
- Unità Operativa Complessa di Neurologia, Fondazione Policlinico Universitario A, Gemelli IRCCS, Roem, Italy.,Istituto di Neurologia, Università Cattolica del Sacro Cuore, Rome, Italy
| | - María Teresa Gomez
- Neurology Department, Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Jorge Alfredo Bevilacqua
- Departamento de Neurología y Neurocirugía, Hospital Clínico Universidad de Chile, Programa de Anatomía y Medicina Legal, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Jorge Diaz-Jara
- Centro de imagenología, Hospital Clínico Universidad de Chile, Universidad de Chile, Santiago, Chile
| | - Ivonne Ingrid Zamorano
- Servicio de Neurología, Hospital de Puerto Montt, Servicio de Salud del Reloncavi, Los Lagos Region, Chile
| | - Robert Yves Carlier
- Assistance Publique des Hôpitaux de Paris (AP-HP), Service d'Imagerie Médicale, Pôle Neuro-locomoteur, Hôpital Raymond Poincaré, Garches, Hôpitaux Universitaires Paris-Ile-de-France Ouest, Garches, France
| | - Pascal Laforet
- Assistance Publique des Hôpitaux de Paris (AP-HP), Service de neurologie, Pôle Neuro-locomoteur, Hôpital Raymond Poincaré, Garches, Hôpitaux Universitaires Paris-Ile-de-France Ouest, Garches, France
| | - Ana Pelayo-Negro
- Neurology Department, University Hospital "Marqués de Valdecilla (IDIVAL)", University of Cantabria, and "Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED)", Santander, Spain
| | - Alba Ramos-Fransi
- Neurology Department, Hospital Germans Trias I Pujol, Barcelona, Spain
| | | | - Chiara Marini-Bettolo
- The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases Institute of Genetic Medicine, University of Newcastle, Newcastle upon Tyne, UK
| | - Volker Straub
- The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases Institute of Genetic Medicine, University of Newcastle, Newcastle upon Tyne, UK
| | - Gerardo Gutiérrez
- Neurology Department, Hospital Infanta Sofía, San Sebastián de los Reyes, Spain
| | - Tanya Stojkovic
- Institute of Myology, Pitié-Salpêtrière Hospital, Paris, France
| | | | - Germán Morís
- Neurology Department, Hospital Universitario Central de Asturias, Asturias, Spain
| | - Roberto Fernández-Torrón
- Neurology Department, Hospital Donostia, San Sebastián, Spain.,Neuromuscular Area, Neurology Service, Biodonostia Health Research Institute, Donostia University Hospital, Donostia-San Sebastián, Spain
| | - Adolfo Lopez De Munaín
- Neurology Department, Hospital Donostia, San Sebastián, Spain.,Neuromuscular Area, Neurology Service, Biodonostia Health Research Institute, Donostia University Hospital, Donostia-San Sebastián, Spain
| | - Elena Cortes-Vicente
- Neuromuscular Disorders Unit, Neurology Department, Hospital de la Santa Creu I Sant Pau, Universidad Autónoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
| | - Luis Querol
- Neuromuscular Disorders Unit, Neurology Department, Hospital de la Santa Creu I Sant Pau, Universidad Autónoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
| | - Ricardo Rojas-García
- Neuromuscular Disorders Unit, Neurology Department, Hospital de la Santa Creu I Sant Pau, Universidad Autónoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
| | - Isabel Illa
- Neuromuscular Disorders Unit, Neurology Department, Hospital de la Santa Creu I Sant Pau, Universidad Autónoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
| | - Jordi Diaz-Manera
- Neuromuscular Disorders Unit, Neurology Department, Hospital de la Santa Creu I Sant Pau, Universidad Autónoma de Barcelona, Barcelona, Spain .,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
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Abu-Baker A, Kharma N, Perreault J, Grant A, Shekarabi M, Maios C, Dona M, Neri C, Dion PA, Parker A, Varin L, Rouleau GA. RNA-Based Therapy Utilizing Oculopharyngeal Muscular Dystrophy Transcript Knockdown and Replacement. Mol Ther Nucleic Acids 2019; 15:12-25. [PMID: 30831428 DOI: 10.1016/j.omtn.2019.02.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 02/08/2019] [Accepted: 02/10/2019] [Indexed: 11/23/2022]
Abstract
Oculopharyngeal muscular dystrophy (OPMD) is caused by a small expansion of a short polyalanine (polyAla) tract in the poly(A)-binding protein nuclear 1 protein (PABPN1). Despite the monogenic nature of OPMD, no treatment is currently available. Here we report an RNA replacement strategy that has therapeutic potential in cell and C. elegans OPMD models. We develop selective microRNAs (miRNAs) against PABPN1, and we report that miRNAs and our previously developed hammerhead ribozymes (hhRzs) are capable of reducing the expression of both the mRNA and protein levels of PABPN1 by as much as 90%. Since OPMD derives from a very small expansion of GCG within the polyAla tract, our hhRz and miRNA molecules cannot distinguish between the wild-type and mutant mRNAs of PABPN1. Therefore, we designed an optimized-codon wild-type PABPN1 (opt-PABPN1) that is resistant to cleavage by hhRzs and miRNAs. Co-expression of opt-PABPN1 with either our hhRzs or miRNAs restored the level of PABPN1, concomitantly with a reduction in expanded PABPN1-associated cell death in a stable C2C12 OPMD model. Interestingly, knockdown of the PABPN1 by selective hhRzs in the C. elegans OPMD model significantly improved the motility of the PABPN1-13Ala worms. Taken together, RNA replacement therapy represents an exciting approach for OPMD treatment.
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43
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Kuo TM, Nithiyanantham S, Lee CP, Hsu HT, Luo SY, Lin YZ, Yeh KT, Ko YC. Arecoline N-oxide regulates oral squamous cell carcinoma development through NOTCH1 and FAT1 expressions. J Cell Physiol 2019; 234:13984-13993. [PMID: 30624777 DOI: 10.1002/jcp.28084] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 12/18/2018] [Indexed: 12/11/2022]
Abstract
Areca nut has been evaluated as a group I carcinogen to humans. However, the exact compounds of areca nut causing oral cancer remain unproven. Previous findings from our lab revealed that arecoline N-oxide (ANO), a metabolite of arecoline, exhibits an oral fibrotic effect in immune-deficient NOD/SCID mice. The aim of this study is to investigate the oral potentially malignant disorders (OPMD) inductive activity between areca-alkaloid arecoline and its metabolite ANO in C57BL/6 mice. Our findings show that ANO showed higher activity in inducing hyperplasia with leukoplakia and collagen deposition in C57BL/6 mice compared with the arecoline treated groups. Importantly, immunohistochemical studies showed significant upregulation of NOTCH1, HES1, FAT1, PCNA, and Ki67 expressions in the pathological hyperplastic part. In addition, in vitro studies showed that upregulation of NOTCH1 and FAT1 expressions in ANO treated HGF-1 and DOK cell models. We found that NOTCH1 regulates TP53 expression from NOTCH1 knockdown oral cancer cells. The DNA damage was significantly increased after arecoline and ANO treatment. Further, we found that arecoline-induced H2AX expression was regulated by FMO3. Altogether, our findings show that ANO exhibited higher toxicity in OPMD activity and play a significant role in the induction of areca nut mediated oral tumorigenesis.
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Affiliation(s)
- Tzer-Min Kuo
- Environment-Omics-Disease Research Center, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Srinivasan Nithiyanantham
- Environment-Omics-Disease Research Center, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chi-Pin Lee
- Environment-Omics-Disease Research Center, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Hui-Ting Hsu
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | - Shun-Yuan Luo
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan
| | - You-Zhe Lin
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Kun-Tu Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | - Ying-Chin Ko
- Environment-Omics-Disease Research Center, China Medical University Hospital, China Medical University, Taichung, Taiwan
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44
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Decsi G, Soki J, Pap B, Dobra G, Harmati M, Kormondi S, Pankotai T, Braunitzer G, Minarovits J, Sonkodi I, Urban E, Nemeth IB, Nagy K, Buzas K. Chicken or the Egg: Microbial Alterations in Biopsy Samples of Patients with Oral Potentially Malignant Disorders. Pathol Oncol Res 2018; 25:1023-1033. [PMID: 30054809 DOI: 10.1007/s12253-018-0457-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 07/19/2018] [Indexed: 12/23/2022]
Abstract
Oral carcinogenesis often leads to the alteration of the microbiota at the site of the tumor, but data are scarce regarding the microbial communities of oral potentially malignant disorders (OPMDs). Punch biopsies were taken from healthy and non-healthy mucosa of OPMD patients to analyze the microbiome using metagenome sequencing. In healthy oral mucosa biopsies the bacterial phyla Firmicutes, Fusobacteria, Proteobacteria, Actinobacteria and Bacteroidetes were detected by Ion Torrent sequencing. The same phyla as well as the phyla Fibrobacteres and Spirochaetes were present in the OPMD biopsies. On the species level, there were 10 bacterial species unique to the healthy tissue and 35 species unique to the OPMD lesions whereas eight species were detected in both samples. We observed that the relative abundance of Streptococcus mitis decreased in the OPMD lesions compared to the uninvolved tissue. In contrast, the relative abundance of Fusobacterium nucleatum, implicated in carcinogenesis, was elevated in OPMD. We detected markedly increased bacterial diversity in the OPMD lesions compared to the healthy oral mucosa. The ratio of S. mitis and F. nucleatum are characteristically altered in the OPMD lesions compared to the healthy mucosa.
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Affiliation(s)
- Gabor Decsi
- Faculty of Dentistry, Department of Oral Surgery, University of Szeged, Tisza Lajos krt. 64, Szeged, H-6720, Hungary
| | - Jozsef Soki
- Albert Szent-Gyorgyi Clinical Centre, Institute of Clinical Microbiology, University of Szeged, Semmelweis u. 6, Szeged, H-6725, Hungary
| | - Bernadett Pap
- Biological Research Centre, Hungarian Academy of Sciences, Temesvari krt. 62, Szeged, H-6726, Hungary
| | - Gabriella Dobra
- Biological Research Centre, Hungarian Academy of Sciences, Temesvari krt. 62, Szeged, H-6726, Hungary
| | - Maria Harmati
- Biological Research Centre, Hungarian Academy of Sciences, Temesvari krt. 62, Szeged, H-6726, Hungary
| | - Sandor Kormondi
- Albert Szent-Gyorgyi Clinical Centre, Department of Traumatology, University of Szeged, Semmelweis u. 6, Szeged, H-6725, Hungary
| | - Tibor Pankotai
- Department of Biochemistry and Molecular Biology, University of Szeged, Kozep fasor 52, Szeged, H-6726, Hungary
| | | | - Janos Minarovits
- Faculty of Dentistry, Department of Oral Biology and Experimental Dental Research, University of Szeged, Tisza Lajos krt. 64, Szeged, H-6720, Hungary
| | - Istvan Sonkodi
- Faculty of Dentistry, Department of Oral Surgery, University of Szeged, Tisza Lajos krt. 64, Szeged, H-6720, Hungary
| | - Edit Urban
- Albert Szent-Gyorgyi Clinical Centre, Institute of Clinical Microbiology, University of Szeged, Semmelweis u. 6, Szeged, H-6725, Hungary
| | - Istvan Balazs Nemeth
- Department of Dermatology and Allergology, University of Szeged, Szeged, H-6720, Hungary
| | - Katalin Nagy
- Faculty of Dentistry, Department of Oral Surgery, University of Szeged, Tisza Lajos krt. 64, Szeged, H-6720, Hungary
| | - Krisztina Buzas
- Biological Research Centre, Hungarian Academy of Sciences, Temesvari krt. 62, Szeged, H-6726, Hungary. .,Faculty of Dentistry, Department of Oral Biology and Experimental Dental Research, University of Szeged, Tisza Lajos krt. 64, Szeged, H-6720, Hungary.
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Tsai KY, Su CC, Chiang CT, Tseng YT, Lian IB. Environmental heavy metal as a potential risk factor for the progression of oral potentially malignant disorders in central Taiwan. Cancer Epidemiol 2017; 47:118-124. [PMID: 28259083 DOI: 10.1016/j.canep.2017.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 02/07/2017] [Accepted: 02/12/2017] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Oral cancer (OC) is a leading cause of death from cancer in men between the ages of 25 and 44 years in Taiwan. The overall 5-year survival rates for the four OC stages (I-IV) in Taiwan are approximately 70%, 30%, 20%, and 10%, respectively, indicating the importance of the early diagnosis of oral potentially malignant disorders (OPMDs). Previous studies indicated an association between the OC incidence and certain environmental heavy metal concentrations. If these associations do exist for OC, they may also be observed for OPMD. The purpose of this study is to explore the association between the development of OPMD to OC and environmental heavy metals. Oral submucous fibrosis (OSF) and oral leukoplakia (OL) are two major types of OPMD in Taiwan. MATERIALS AND METHODS A retrospective cohort study was conducted by Changhua Christian Hospital, the sole medical center in Changhua County, where 2725 male adult patients diagnosed with either OSF or OL between 2000 and 2014 were recruited. Data were analyzed by Cox regression and adjusted for smoking and betel-quid chewing. RESULTS AND DISCUSSION OPMD patients who resided in areas with high nickel concentrations (polluted levels) exhibited hazard ratios of 1.8-2 for OC relative to those who lived in areas with low nickel levels (P<0.01). Meanwhile, smokers with OPMDs had a hazard ratio of 2.8-2.9 relative to non-smokers. Betel-quid chewers had a 2.2-2.3 hazard ratio relative to non-chewers. Smoking, betel-quid chewing, and environmental nickel exposure are associated with an increased risk of OC development in OPMD patients. This study provides valuable findings on the environmental effects of heavy metals on human health. Enhanced surveillance of the condition of OPMD patients who have been exposed to high nickel concentrations may be crucial for OC prevention.
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Affiliation(s)
- Kuo-Yang Tsai
- Department of Oral and Maxillofacial Surgery, Changhua Christian Hospital, 135, Nan-Hsiao Street, Changhua 500, Taiwan
| | - Che-Chun Su
- Department of Internal Medicine, Changhua Christian Hospital, 135, Nan-Hsiao Street, Changhua 500, Taiwan; Graduate Institute of Statistics and Information Science, National Changhua University of Education, Changhua 500, Taiwan
| | - Chi-Ting Chiang
- Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, No. 195, Section 4, Chung Hsing Road, Chutung, Hsinchu 310, Taiwan
| | - Yao-Ting Tseng
- Graduate Institute of Statistics and Information Science, National Changhua University of Education, Changhua 500, Taiwan.
| | - Ie-Bin Lian
- Graduate Institute of Statistics and Information Science, National Changhua University of Education, Changhua 500, Taiwan.
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van der Sluijs BM, Knoop H, Bleijenberg G, van Engelen BG, Voermans NC. The Dutch patients' perspective on oculopharyngeal muscular dystrophy: A questionnaire study on fatigue, pain and impairments. Neuromuscul Disord 2016; 26:221-6. [PMID: 26948710 DOI: 10.1016/j.nmd.2015.12.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 12/12/2015] [Accepted: 12/16/2015] [Indexed: 01/05/2023]
Abstract
Research on oculopharyngeal muscular dystrophy focuses mainly on genetic and pathophysiological aspects. Clinically, oculopharyngeal muscular dystrophy is often considered as a disease with a relatively mild initial disease course with no or only mild functional disabilities. However the occurrence of fatigue, pain and functional impairments other than dysphagia has never been studied systematically. The aim of this study is therefore to assess the prevalence of fatigue, pain, and functional limitations, and the social participation and psychological well-being of oculopharyngeal muscular dystrophy patients. We performed a questionnaire study on fatigue, pain, functional impairments, social participation and psychological distress in 35 genetically confirmed oculopharyngeal muscular dystrophy patients with an average disease duration of 11.6 years. We showed that 19 (54%) of the patients experienced severe fatigue and also 19 (54%) experienced pain. Limitations in daily life activities and social participation were detected in 33 (94%) of the patients. Many patients reported pelvic girdle weakness and limitations in ambulation. Fatigue severity was related to functional impairments, while pain and disease duration were not. Psychological distress was not different from healthy adults. In conclusion, fatigue and pain are present among approximately half of the patients, and almost all patients are impaired in daily life activities, social participation and ambulation. These data should be taken into account in symptomatic management of oculopharyngeal muscular dystrophy.
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Hung KF, Liu CJ, Chiu PC, Lin JS, Chang KW, Shih WY, Kao SY, Tu HF. MicroRNA-31 upregulation predicts increased risk of progression of oral potentially malignant disorder. Oral Oncol 2015; 53:42-7. [PMID: 26675284 DOI: 10.1016/j.oraloncology.2015.11.017] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 11/16/2015] [Accepted: 11/20/2015] [Indexed: 12/20/2022]
Abstract
OBJECTIVES MicroRNAs (miRNAs, miRs) have shown diagnostic and prognostic potential for oral cancer but their role in oral potentially malignant disorder (OPMD) has been less investigated. We aimed to assess whether miR-21 and miR-31, two of the most relevant miRNAs in oral cancer, are useful as prognostic factors for OPMD progression. MATERIALS AND METHODS miR-21 and miR-31 in 20 saliva samples and 46 tissue samples from patients with OPMD (mean follow-up of 820days) were analyzed by quantitative reverse transcription PCR and in situ hybridization, respectively. The log-rank test, receiver operating characteristic curve, and Kaplan-Meier disease free survival analysis were used to assess the correlation between miRNA levels and OPMD progression. RESULTS Significantly increased salivary miR-21 and miR-31 expression (P=0.003 and P<0.001, respectively) was observed in patients with OPMD compared to control individuals. Patients with recurrent OPMD and/or malignant transformation exhibited a further augmented expression of miR-31, but not miR-21, in the epithelium. Furthermore, increased miR-31 expression as well as epithelial dysplasia is an independent risk factor for OPMD progression as demonstrated in Cox-proportional hazard model (HR: 8.43, P<0.05, 95%CI: 1.04 to 68.03). CONCLUSIONS Salivary miR-21 and miR-31 are applicable as useful OPMD screening tools. Epithelial dysplasia and miR-31 up-regulation synergistically predict the increased incidence of recurrence and/or malignant transformation in patients with OPMD. Detection of miR-31 expression is an adjuvant method for screening of high-risk OPMD.
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Affiliation(s)
- Kai-Feng Hung
- Department of Dentistry, School of Dentistry, National Yang-Ming University, Taipei, Taiwan
| | - Chung-Ji Liu
- Department of Dentistry, School of Dentistry, National Yang-Ming University, Taipei, Taiwan; Department of Dentistry, Taipei MacKay Memorial Hospital, Taipei, Taiwan
| | - Peng-Chih Chiu
- Department of Dentistry, National Yang-Ming University Hospital, I-Lan, Taiwan
| | - Jiun-Sheng Lin
- Department of Dentistry, School of Dentistry, National Yang-Ming University, Taipei, Taiwan; Department of Dentistry, Taipei MacKay Memorial Hospital, Taipei, Taiwan
| | - Kuo-Wei Chang
- Department of Dentistry, School of Dentistry, National Yang-Ming University, Taipei, Taiwan; Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Wen-Yu Shih
- Department of Dentistry, School of Dentistry, National Yang-Ming University, Taipei, Taiwan; Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shou-Yen Kao
- Department of Dentistry, School of Dentistry, National Yang-Ming University, Taipei, Taiwan; Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Hsi-Feng Tu
- Department of Dentistry, School of Dentistry, National Yang-Ming University, Taipei, Taiwan; Department of Dentistry, National Yang-Ming University Hospital, I-Lan, Taiwan.
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Abstract
Symptoms in late-onset neuromuscular disorders initiate only from midlife onward and progress with age. These disorders are primarily determined by identified hereditable mutations, but their late-onset symptom manifestation is not fully understood. Here, we review recent research developments on the late-onset autosomal dominant oculopharyngeal muscular dystrophy (OPMD). OPMD is caused by an expansion mutation in the gene encoding for poly-adenylate RNA binding protein1 (PABPN1). The molecular pathogenesis for the disease is still poorly understood. Despite a ubiquitous expression of PABPN1, symptoms in OPMD are limited to skeletal muscles. We discuss recent studies showing that PABPN1 levels in skeletal muscles are lower compared with other tissues, and specifically in skeletal muscles, PABPN1 expression declines from midlife onward. In OPMD, aggregation of expanded PABPN1 causes an additional decline in the level of the functional protein, which is associated with severe muscle weakness in OPMD. Reduced PABNPN1 expression in muscle cell culture causes myogenic defects, suggesting that PABPN1 loss-of-function causes muscle weakness in OPMD and in the elderly. Molecular signatures of OPMD muscles are similar to those of normal muscle aging, although expression trends progress faster in OPMD. We discuss a working hypothesis that aging-associated factors trigger late-onset symptoms in OPMD, and contribute to accelerated muscle weakness in OPMD. We focus on the pharyngeal and eyelid muscles, which are often affected in OPMD patients. We suggest that muscle weakness in OPMD is a paradigm for muscle aging.
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Affiliation(s)
- Yotam Raz
- Department of Human Genetics, Leiden University Medical Center , Leiden , Netherlands
| | - Vered Raz
- Department of Human Genetics, Leiden University Medical Center , Leiden , Netherlands
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