101
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Pourshahidi S, Ghasem Zadeh Hoseini E, Shirazian S, Ebrahimi H, Chiniforush N, Alaeddini M, Etemad-Moghadam S, Amaral Mendes R. The Effect of Laser Bio-modulation on Dysplastic Lesions, an Animal Study. Photochem Photobiol 2021; 97:865-869. [PMID: 33590548 DOI: 10.1111/php.13400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/02/2021] [Indexed: 11/30/2022]
Abstract
Potentially malignant disorders are one of the clinical challenges. Dysplasia in these lesions can be a predictor of more potential for malignant changes. Photo-bio-modulation in benign lesions has advantages, but there is doubt on its safety in potentially malignant lesions. This study aims to assess if low-level laser can promote dysplastic changes while the method can play an important role in management of dysplastic lesions. Dysplasia was induced on anterior wall of the buccal pouch of 80 young Syrian male hamsters. Then, hamsters were divided to four groups to receive 4 and 12 sessions irradiation of 660 and 810 nanometers low-level lasers. For histopathologic study of the tissue, we used light microscopes. Using SPSS, data were analyzed via Wilcoxon signed rank test and Mann-Whitney U-test. In all of our four groups, the severity of dysplasia had no statistical difference in study sides comparing with their own controls. Wavelength and numbers of laser irradiation sessions had no statistically meaningful effect on the severity of dysplasia either. Low-level lasers appear to show no relevant or significant effect over the aggravation of the dysplasia's severity. Neither the wavelength nor the number of sessions appear to have any impact in the results.
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Affiliation(s)
- Sara Pourshahidi
- Oral and Maxillofacial Medicine Department, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Shiva Shirazian
- Oral and Maxillofacial Medicine Department, Tehran University of Medical Sciences, Tehran, Iran
| | - Hooman Ebrahimi
- Oral Medicine Department, Dental Faculty, Azad University of Medical Sciences, Tehran, Iran
| | - Nasim Chiniforush
- Laser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojgan Alaeddini
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahroo Etemad-Moghadam
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Rui Amaral Mendes
- Oral and Maxillofacial Medicine Department, Tehran University of Medical Sciences, Tehran, Iran.,Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, Case Western Reserve University, Cleveland, OH, USA.,CINTESIS - Center for Health Technology and Services Research, Porto, Portugal
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102
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Detection of deletions in 1q25, 1p36 and 1pTEL and chromosome 17 aneuploidy in oral epithelial dysplasia and oral squamous cell carcinoma by fluorescence in situ hybridization (FISH). Oral Oncol 2021; 116:105221. [PMID: 33610067 DOI: 10.1016/j.oraloncology.2021.105221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 01/07/2021] [Accepted: 02/02/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To identify chromosome deletions in 1q25, 1p36 and 1pTEL, and chromosome 17 ploidy status in oral epithelial dysplasia (OED) and oral squamous cell carcinoma (OSCC). MATERIAL AND METHODS Samples from 57 OED and 63 OSCC were selected. FISH was performed using centromeric probes 17 and n LSIR 1p36/LSI 1q25 Dual Color Probe. RESULTS In OED, deletions were found only in 1pTEL region (29.8%). In OSCC, there was a higher frequency of deletion in 1pTEL (79.4%), followed by 1p36 (73.0%), and 1q25 (20.6%). Advanced TNM clinical stages (III/IV) showed all the deletions studied; at early clinical stages (I/II) of OSCC, deletions were observed only in 1pTEL. The frequency of deletion in 1p36 was 17.0 times higher in OSCC at advanced clinical stages (PR: 17.00). The median number of cell nuclei with chromosome 17 aneuploidy was higher in OSCC than in OED (P < 0.001). Early clinical stages of OSCC showed lower median number nuclei with aneuploidy when compared to advanced tumors (P < 0.05). Tumors harboring deletions in 1p36, 1q25 and 1pTEL revealed higher median numbers of trisomic/polysomic nuclei when compared to lesions exhibiting no abnormalities in chromosome 1 (P < 0.05). CONCLUSION A higher prevalence of chromosomal abnormalities was found in OSCC than in OED, while in OSCC, higher abnormalities were present in lesions with higher TNM staging. 1pTEL deletion and monosomy of chromosome 17 are possible markers for progression of OED to OSCC. 1p36 deletion and trisomy/polysomy of chromosome 17 could be markers of worse prognosis of OSCC.
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103
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The Potential of Raman Spectroscopy in the Diagnosis of Dysplastic and Malignant Oral Lesions. Cancers (Basel) 2021; 13:cancers13040619. [PMID: 33557195 PMCID: PMC7913942 DOI: 10.3390/cancers13040619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 02/01/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Raman spectroscopy, a light scattering technique that provides the biochemical fingerprint of a sample, was used on samples taken from patients with cancer and precancerous lesions. This information was then used to build a classifier to identify cancer and the precancerous phases. The ability to distinguish cancerous tissue from normal and precancerous tissue is diagnostically crucial as it can alter the patients’ prognosis and management. Moreover, as cellular changes are often present at the tumour margin, the ability to distinguish these changes from cancer can help in preserving more of the tissue and maintaining aesthetics and functionality for the patient. Abstract Early diagnosis, treatment and/or surveillance of oral premalignant lesions are important in preventing progression to oral squamous cell carcinoma (OSCC). The current gold standard is through histopathological diagnosis, which is limited by inter- and intra-observer errors and sampling errors. The objective of this work was to use Raman spectroscopy to discriminate between benign, mild, moderate and severe dysplasia and OSCC in formalin fixed paraffin preserved (FFPP) tissues. The study included 72 different pathologies from which 17 were benign lesions, 20 mildly dysplastic, 20 moderately dysplastic, 10 severely dysplastic and 5 invasive OSCC. The glass substrate and paraffin wax background were digitally removed and PLSDA with LOPO cross-validation was used to differentiate the pathologies. OSCC could be differentiated from the other pathologies with an accuracy of 70%, while the accuracy of the classifier for benign, moderate and severe dysplasia was ~60%. The accuracy of the classifier was lowest for mild dysplasia (~46%). The main discriminating features were increased nucleic acid contributions and decreased protein and lipid contributions in the epithelium and decreased collagen contributions in the connective tissue. Smoking and the presence of inflammation were found to significantly influence the Raman classification with respective accuracies of 76% and 94%.
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104
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Thompson LDR, Fitzpatrick SG, Müller S, Eisenberg E, Upadhyaya JD, Lingen MW, Vigneswaran N, Woo SB, Bhattacharyya I, Bilodeau EA, Carlos R, Islam MN, Leon ME, Lewis JS, Magliocca KR, Mani H, Mehrad M, Purgina B, Richardson M, Wenig BM, Cohen DM. Proliferative Verrucous Leukoplakia: An Expert Consensus Guideline for Standardized Assessment and Reporting. Head Neck Pathol 2021; 15:572-587. [PMID: 33415517 PMCID: PMC8134585 DOI: 10.1007/s12105-020-01262-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 11/26/2020] [Indexed: 12/12/2022]
Abstract
The many diverse terms used to describe the wide spectrum of changes seen in proliferative verrucous leukoplakia (PVL) have resulted in disparate clinical management. The objective of this study was to produce an expert consensus guideline for standardized assessment and reporting by pathologists diagnosing PVL related lesions. 299 biopsies from 84 PVL patients from six institutions were selected from patients who had multifocal oral leukoplakic lesions identified over several years (a minimum follow-up period of 36 months). The lesions demonstrated the spectrum of histologic features described in PVL, and in some cases, patients developed oral cavity squamous cell carcinoma (SCC). An expert working group of oral and maxillofacial and head and neck pathologists reviewed microscopic features in a rigorous fashion, in combination with review of clinical photographs when available. The working group then selected 43 single slide biopsy cases for whole slide digital imaging (WSI) review by members of the consensus conference. The digital images were then reviewed in two surveys separated by a washout period of at least 90 days. Five non-PVL histologic mimics were included as controls. Cases were re-evaluated during a consensus conference with 19 members reporting on the cases. The best inter-observer diagnostic agreement relative to PVL lesions were classified as "corrugated ortho(para)hyperkeratotic lesion, not reactive" and "SCC" (chi-square p = 0.015). There was less than moderate agreement (kappa < 0.60) for lesions in the "Bulky hyperkeratotic epithelial proliferation, not reactive" category. There was ≥ moderate agreement (> 0.41 kappa) for 35 of 48 cases. This expert consensus guideline has been developed with support and endorsement from the leadership of the American Academy of Oral and Maxillofacial Pathology and the North American Society of Head and Neck Pathologists to recommend the use of standardized histopathologic criteria and descriptive terminology to indicate three categories of lesions within PVL: (1) "corrugated ortho(para)hyperkeratotic lesion, not reactive;" (2) "bulky hyperkeratotic epithelial proliferation, not reactive;" and (3) "suspicious for," or "squamous cell carcinoma." Classification of PVL lesions based on a combination of clinical findings and these histologic descriptive categories is encouraged in order to standardize reporting, aid in future research and potentially guide clinical management.
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Affiliation(s)
- Lester D. R. Thompson
- Department of Pathology, Southern California Permanente Medical Group, Woodland Hills Medical Center, 5601 De Soto Avenue Woodland Hills, CA 91364 Woodland Hills, USA
| | - Sarah G. Fitzpatrick
- Department of Oral and Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, Gainesville, FL USA
| | - Susan Müller
- Atlanta Oral Pathology, Emory University School of Medicine, Decatur, GA USA
| | - Ellen Eisenberg
- Oral Health and Diagnostic Sciences, University of Connecticut Health, Farmington, CT USA
| | - Jasbir D. Upadhyaya
- Section of Diagnostic Sciences, Department of Applied Dental Medicine, Southern Illinois University School of Dental Medicine, Alton, IL USA
| | - Mark W. Lingen
- Department of Pathology, University of Chicago Medicine, Chicago, IL USA
| | - Nadarajah Vigneswaran
- Department of Diagnostic and Biomedical Sciences, University of Texas School of Dentistry at Houston, Houston, TX USA
| | - Sook-Bin Woo
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA USA
| | - Indraneel Bhattacharyya
- Department of Oral and Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, Gainesville, FL USA
| | - Elizabeth A. Bilodeau
- Department of Diagnostic Sciences, University of Pittsburgh School of Dental Medicine, Pittsburgh, PA USA
| | - Roman Carlos
- Centro Clínico de Cabeza y Cuello, Patología División, Guatemala City, Guatemala
| | - Mohammed N. Islam
- Department of Oral and Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, Gainesville, FL USA
| | - Marino E. Leon
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida College of Medicine, Gainesville, FL USA
| | - James S. Lewis
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN USA
| | - Kelly R. Magliocca
- Department of Pathology & Laboratory Medicine, Emory University School of Medicine, Atlanta, GA USA
| | - Haresh Mani
- Department of Pathology, Inova Fairfax Hospital, Falls Church, VA USA
| | - Mitra Mehrad
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN USA
| | - Bibianna Purgina
- Department of Pathology, University of Ottawa, Ottawa, Ontario Canada
| | - Mary Richardson
- Department of Pathology, MUSC Health-University Medical Center, Charleston, SC USA
| | - Bruce M. Wenig
- Department of Pathology, Moffitt Cancer Center, Tampa, FL USA
| | - Donald M. Cohen
- Department of Oral and Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, Gainesville, FL USA
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105
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Sathasivam HP, Nayar D, Sloan P, Thomson PJ, Odell EW, Robinson M. Dysplasia and DNA ploidy to prognosticate clinical outcome in oral potentially malignant disorders. J Oral Pathol Med 2021; 50:200-209. [PMID: 33151583 DOI: 10.1111/jop.13121] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/02/2020] [Accepted: 09/12/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND Oral potentially malignant disorders are a clinical conundrum as there are no reliable methods to predict their behaviour. We combine conventional oral epithelial dysplasia grading with DNA ploidy analysis to examine the validity of this approach to risk assessment in a cohort of patients with known clinical outcomes. METHODS Sections from diagnostic biopsies were assessed for oral epithelial dysplasia using the WHO grading system, and DNA ploidy analysis was performed using established methods. Patients reviewed for a minimum of 5 years who did not develop oral squamous cell carcinoma were classified as "non-transforming" cases. Patients that developed oral squamous cell carcinoma ≥ 6 months after the initial diagnostic biopsy were classified as having "malignant transformation." RESULTS Ninety cases were included in the study. Seventy cases yielded informative DNA ploidy results. Of these 70 cases, 31 progressed to cancer. Oral epithelial dysplasia grading and DNA ploidy status were both significantly associated with clinical outcome (P < 0.05). Severe dysplasia had a hazard ratio of 3.50 (CI: 1.46, 8.45; P = 0.005) compared to cases with mild dysplasia. Aneuploidy had a hazard ratio of 2.09 (CI: 1.01, 4.32; P = 0.046) compared to cases with a diploid/tetraploid status. Receiver operating characteristic analysis gave an area under the curve of 0.617 for DNA ploidy status and 0.688 when DNA ploidy status was combined with dysplasia grading. CONCLUSION Our findings suggest that combining dysplasia grading with DNA ploidy status has clinical utility which could be used to develop novel management algorithms.
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Affiliation(s)
- Hans Prakash Sathasivam
- School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Cancer Research Centre, Institute for Medical Research, National Institute of Health, Setia Alam, Malaysia
| | - Deepa Nayar
- King's College London, Guy's Hospital, London, UK
| | - Philip Sloan
- School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Department of Cellular Pathology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Peter J Thomson
- Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, Hong Kong
| | | | - Max Robinson
- School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Department of Cellular Pathology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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106
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Scholtz B, Vo Minh D, Kiss C, Tar I, Kumar A, Tőzsér J, Csősz É, Márton I. Examination of Oral Squamous Cell Carcinoma and Precancerous Lesions Using Proximity Extension Assay and Salivary RNA Quantification. Biomedicines 2020; 8:biomedicines8120610. [PMID: 33327496 PMCID: PMC7764999 DOI: 10.3390/biomedicines8120610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 12/24/2022] Open
Abstract
Saliva is an easy-to access body fluid with high diagnostic potential. The utilization of saliva for oral cancer diagnosis can be an attractive possibility. Besides the oral cancer, it is important to better understand the precancerous lesions such as oral lichen planus (OLP) and leukoplakia (OLK). In order to examine the changes of salivary proteins in controls, patients with oral cancer, and patients with precancerous conditions, proximity extension assay was utilized. Some proteins and functions were characteristic to the examined groups and can serve as a starting point for further biomarker studies. The different nature of OLK and OLP was demonstrated, showing the malignant transformation and the inflammation as the prominent biological processes in the OLK and OLP, respectively. The salivary level of IL6 was verified using quantitative ELISA and the mRNA level was also studied. Elevated IL6 levels could be detected in precancerous groups compared to controls.
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Affiliation(s)
- Beáta Scholtz
- Genomic Medicine and Bioinformatic Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Doan Vo Minh
- Biomarker Research Group, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (D.V.M.); (A.K.)
- Proteomics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Csongor Kiss
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Ildikó Tar
- Department of Oral Medicine, Faculty of Dentistry, University of Debrecen, 4032 Debrecen, Hungary;
| | - Ajneesh Kumar
- Biomarker Research Group, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (D.V.M.); (A.K.)
- Proteomics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
- Doctoral School of Molecular Cell and Immune Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - József Tőzsér
- Proteomics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Éva Csősz
- Biomarker Research Group, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (D.V.M.); (A.K.)
- Proteomics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
- Correspondence: (É.C.); (I.M.); Tel.: +36-52-416432 (É.C.)
| | - Ildikó Márton
- Department of Restorative Dentistry, Faculty of Dentistry, University of Debrecen, 4032 Debrecen, Hungary
- Correspondence: (É.C.); (I.M.); Tel.: +36-52-416432 (É.C.)
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107
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Nag R, Paul RR, Pal M, Chatterjee J, Das RK. Epithelial Distribution of E-Cadherin, p63, and Mitotic Figures in ApoTome Images to Determine the Oncogenic Potentiality of Oral Submucous Fibrosis. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2020; 26:1198-1210. [PMID: 33050978 DOI: 10.1017/s1431927620024538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The exact process of the malignant conversion of oral submucous fibrosis (OSF) to oral cancer is not fully understood. This study aimed to detect and analyze E-cadherin expression, p63 expression, and number of mitotic figures, all correlated to cancer development, in ApoTome images of oral tissues to determine the oncogenic potentiality of OSF. ApoTome images of the study groups (6 normal, 16 OSF with dysplasia, and 10 OSF without dysplasia) were recorded. Cytoplasmic and membranous E-cadherin expression, breakages of the cell membrane, and p63 expression were detected in MATLAB 2016b. The number of mitotic figures detected by MATLAB was correlated with the number of chromosomes detected by ImageJ. A Mann–Whitney U test was done to determine a significant difference between the study groups for cytoplasmic and membranous E-cadherin distribution points. Statistical significant differences were found for cytoplasmic E-cadherin distribution between normal and OSF (with dysplasia) (p = 0.0278). There was an increase in mitotic figures, p63 expression, and cytoplasmic E-cadherin expression and a decrease in membranous E-cadherin expression from normal to diseased condition. Hence, automated detection and quantification of E-cadherin, p63, and mitotic figures in ApoTome images of oral biopsies can help in determining the oncogenic potentiality of OSF.
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Affiliation(s)
- Reetoja Nag
- Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology, Room No. 402, ALM Building, Vellore632014, Tamil Nadu, India
| | - Ranjan Rashmi Paul
- Gurunanak Institute of Dental Sciences and Research, Panihati700114, West Bengal, India
| | - Mousumi Pal
- Gurunanak Institute of Dental Sciences and Research, Panihati700114, West Bengal, India
| | - Jyotirmoy Chatterjee
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur721302, West Bengal, India
| | - Raunak Kumar Das
- Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology, Room No. 402, ALM Building, Vellore632014, Tamil Nadu, India
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108
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Vail M, Robinson S, Condon H. Recognition of oral potentially malignant disorders and transformation to oral cancer. JAAPA 2020; 33:14-18. [PMID: 33109976 DOI: 10.1097/01.jaa.0000718268.52634.59] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Oral potentially malignant disorders refer to oral mucosal disorders with increased risk for malignant transformation, primarily to oral squamous cell carcinoma (SCC). Leukoplakia and erythroplakia are the most common of these disorders, but others have been identified. Transformation rates to oral cancer vary based on multiple factors. Healthcare providers should be aware of risk factors and clinical manifestations of these disorders and should intervene early to monitor and/or treat them to reduce the potential for malignant transformation.
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Affiliation(s)
- Marianne Vail
- In the PA program at George Washington University in Washington, D.C., Marianne Vail is an assistant professor and Sean Robinson is an assistant professor and director of academic curriculum. Heather Condon practices at Associates in Otolaryngology in Alexandria, Va. The authors have disclosed no potential conflicts of interest, financial or otherwise
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109
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Lekshmy MS, Sivakumar TT, Joseph AP, Varun BR, Mony V, Reshmi A. Expression of transmembrane protein aquaporin-3 in oral epithelial dysplasia and oral squamous cell carcinoma. Oral Surg Oral Med Oral Pathol Oral Radiol 2020; 131:202-208. [PMID: 33187942 DOI: 10.1016/j.oooo.2020.10.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 07/14/2020] [Accepted: 10/11/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVES The objective of this study was to evaluate aquaporin-3 (AQP3) expression in patient samples of oral epithelial dysplasia (OED) and oral squamous cell carcinoma (OSCC), thereby assessing the potential of AQP3 as a molecular marker for tumor progression. STUDY DESIGN An in vitro comparative study was done to determine the AQP3 expression on 20 surgical biopsy specimens each of OED and OSCC using immunohistochemistry. Twenty specimens of normal oral mucosa were kept as controls. The results were statistically analyzed using one-way analysis of variance and post hoc analysis. RESULTS The expression of AQP3 was analyzed and further semiquantified using H-scores. The mean H-score showed a statistically significant difference between OSCC, OED, and normal oral mucosa (P < .05). There was a significant increase in the expression of AQP3 in OSCC and OED compared to normal oral mucosa. The highest expression was observed in OSCC (P < .01). CONCLUSION The observations of the study indicate that staining intensity of AQP3 increased from dysplastic noninvasive lesion to invasive OSCC, suggesting a possible role of AQP3 as a biomarker for tumor progression.
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Affiliation(s)
- M S Lekshmy
- Postgraduate student, Department of Oral and Maxillofacial Pathology, PMS College of Dental Science and Research, Thiruvananthapuram, Kerala, India
| | - T T Sivakumar
- Professor, Department of Oral and Maxillofacial Pathology, PMS College of Dental Science and Research, Thiruvananthapuram, Kerala, India
| | - Anna P Joseph
- Professor, Department of Oral and Maxillofacial Pathology, PMS College of Dental Science and Research, Thiruvananthapuram, Kerala, India
| | - B R Varun
- Professor, Department of Oral and Maxillofacial Pathology, PMS College of Dental Science and Research, Thiruvananthapuram, Kerala, India
| | - Vinod Mony
- Reader, Department of Oral and Maxillofacial Pathology, PMS College of Dental Science and Research, Thiruvananthapuram, Kerala, India
| | - A Reshmi
- Assistant Professor, Department of Oral and Maxillofacial Pathology, PMS College of Dental Science and Research, Thiruvananthapuram, Kerala, India
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110
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Evren I, Brouns ER, Wils LJ, Poell JB, Peeters CFW, Brakenhoff RH, Bloemena E, de Visscher JGAM. Annual malignant transformation rate of oral leukoplakia remains consistent: A long-term follow-up study. Oral Oncol 2020; 110:105014. [PMID: 33038723 DOI: 10.1016/j.oraloncology.2020.105014] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/02/2020] [Accepted: 09/11/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Numerous clinical and histopathological characteristics have been associated with malignant transformation (MT) of oral leukoplakia (OL), including classic and differentiated epithelial dysplasia, but MT predictions remain suboptimal. The objective of this study was to determine the annual MT rate of OL and to identify clinicopathological risk factors associated with MT. PATIENTS AND METHODS 170 patients with OL were included in this retrospective cohort study, 117 females and 53 males. Follow-up ranged from 12 to 219 months (median 54). The analyzed variables included age, gender, smoking habits, clinical presentation, subsite, size and treatment. In a subgroup of 140 patients, histopathological diagnoses were reviewed with regard to the presence of dysplasia, discerning both classic dysplasia and differentiated dysplasia. RESULTS MT occurred in 23% of the patients, resulting in an annual MT rate of 4.9% (95% CI: 3.5 - 6.6) which remained consistent. High-risk subsite (tongue and floor of mouth) was the only clinical predictor for MT (Hazard Ratio = 2.7, 95% CI: 1.3 - 5.5, p = 0.007). In 140 patients, classic dysplasia (Hazard Ratio = 7.2, 95% CI: 1.6 - 33.1, p = 0.012) and differentiated dysplasia (Hazard Ratio = 6.6, 95% CI: 1.2 - 25.4, p = 0.026) were predictors for MT. Binary grading between dysplasia and no dysplasia was significant for predicting MT (Hazard Ratio = 6.4, 95% CI: 1.5 - 27.5, p = 0.013). CONCLUSION Since annual MT rate of OL remains stable during follow-up, regular long-term or even life-long follow-up is advocated. Specific oral subsites and epithelial dysplasia are predictors for MT of OL.
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Affiliation(s)
- Ilkay Evren
- Amsterdam UMC, location VUmc, Department of Oral and Maxillofacial Surgery / Oral Pathology, Cancer Center Amsterdam, Academic Centre for Dentistry Amsterdam (ACTA), P.O. Box 7057, 1007 MB Amsterdam, the Netherlands.
| | - Elisabeth R Brouns
- Amsterdam UMC, location VUmc, Department of Oral and Maxillofacial Surgery / Oral Pathology, Cancer Center Amsterdam, Academic Centre for Dentistry Amsterdam (ACTA), P.O. Box 7057, 1007 MB Amsterdam, the Netherlands.
| | - Leon J Wils
- Amsterdam UMC, location VUmc, Department of Oral and Maxillofacial Surgery / Oral Pathology, Cancer Center Amsterdam, Academic Centre for Dentistry Amsterdam (ACTA), P.O. Box 7057, 1007 MB Amsterdam, the Netherlands.
| | - Jos B Poell
- Amsterdam UMC, location VUmc, Department of Otolaryngology / Head & Neck Surgery, Cancer Center Amsterdam, P.O. Box 7057, 1007 MB Amsterdam, the Netherlands.
| | - Carel F W Peeters
- Amsterdam UMC, location VUmc, Department of Epidemiology & Data Science, Amsterdam Public Health research institute, P.O. Box 7057, 1007 MB Amsterdam, the Netherlands.
| | - Ruud H Brakenhoff
- Amsterdam UMC, location VUmc, Department of Otolaryngology / Head & Neck Surgery, Cancer Center Amsterdam, P.O. Box 7057, 1007 MB Amsterdam, the Netherlands.
| | - Elisabeth Bloemena
- Amsterdam UMC, location VUmc, Department of Oral and Maxillofacial Surgery / Oral Pathology, Cancer Center Amsterdam, Academic Centre for Dentistry Amsterdam (ACTA), P.O. Box 7057, 1007 MB Amsterdam, the Netherlands; Amsterdam UMC, location VUmc, Department of Pathology, P.O. Box 7057, 1007 MB Amsterdam, the Netherlands.
| | - Jan G A M de Visscher
- Amsterdam UMC, location VUmc, Department of Oral and Maxillofacial Surgery / Oral Pathology, Cancer Center Amsterdam, Academic Centre for Dentistry Amsterdam (ACTA), P.O. Box 7057, 1007 MB Amsterdam, the Netherlands.
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Miranda Galvis M, Schausltz Pereira Faustino I, Cabral Ramos J, Dos Santos Silva AR, de Abreu Alves F, Kowalski LP, Ajudarte Lopes M. Oral cancer adjacent to dental implants mimicking benign lesions: a case series study. Aust Dent J 2020; 66:112-118. [PMID: 32939781 DOI: 10.1111/adj.12793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/04/2020] [Indexed: 12/24/2022]
Abstract
Despite the long-term survival rates of osseointegrated dental implants, several biological complications are known to affect the peri-implant tissues, such as peri-implant mucositis and peri-implantitis. Occasionally, the clinical features of these more common benign lesions, or others nonrelated to implants, might be similar to oral malignancies, leading to misdiagnosis. The objective of this study was to present a case series of oral cancer located adjacent to dental implants, aimed to identify the reasons for initial misinterpretation of diagnosis. Thirteen patients, 10 females and 3 males, aged 59 to 90, were assessed. Among the differential diagnoses established, a malignant or premalignant lesion was not considered in 10 out of the 13 patients. Peri-implantitis was the most common preliminary diagnosis, followed by fungal infection, viral infections, and traumatic ulcers. The meantime for the diagnosis of oral cancer was 21.5 months. The clinical presentation of peri-implant malignancy, such as ulceration, white and red plaques, and exophytic lesions, might mimic benign diseases that are more common in the oral cavity. Suspicious lesions with treatment failure that persist for more than 2 weeks require biopsy and histopathological analysis to establish an early definitive diagnosis to improve the prognosis and quality of life of the patients.
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Affiliation(s)
- Marisol Miranda Galvis
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | | | - Joab Cabral Ramos
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | | | | | - Luiz Paulo Kowalski
- Department of Head and Neck Surgery and Otorhinolaryngology, A.C. Camargo Cancer Center, São Paulo, Brazil.,Head and Neck Surgery Department, Medical School, University of São Paulo, São Paulo, Brazil
| | - Marcio Ajudarte Lopes
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
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112
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Pina PSS, Custódio M, Sugaya NN, de Sousa SCOM. Histopathologic aspects of the so-called chronic hyperplastic candidiasis: An analysis of 36 cases. J Cutan Pathol 2020; 48:66-71. [PMID: 32939807 DOI: 10.1111/cup.13875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 09/08/2020] [Accepted: 09/12/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND The present study aimed to analyze the histopathologic aspects of cases diagnosed as chronic hyperplastic candidiasis (CHC) in an oral pathology service, pointing out the most important features found. METHODS All cases histopathologically diagnosed as CHC between 2002 and 2018 were retrieved from the files of the service. Data of the patients and the lesions were collected. Histopathological analysis was performed to evaluate the microscopic characteristics and the amount of Candida present. RESULTS Thirty-six cases of CHC were retrieved. Women were more affected and there was a predilection for Whites. Most lesions appeared as a nodule or a white plaque, asymptomatic, on the tongue or buccal mucosa. Histopathologically, statistical significance was noted for the presence of epithelial hyperplasia, exocytosis, and mononuclear inflammatory infiltrate. Interestingly, only the association between dysplasia and the amount of fungus was noted. CONCLUSIONS CHC appears to be a distinct entity presenting typical histopathologic aspects. CHC might even show epithelial dysplasia. In those cases, the presence of a large amount of Candida together with other histopathological features should lead to the diagnosis of CHC and subsequent treatment. However, close follow up is important.
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Affiliation(s)
- Paulo Sérgio Souza Pina
- Department of Oral Pathology, School of Dentistry, University of São Paulo (FOUSP), São Paulo, Brazil
| | - Marcos Custódio
- Department of Oral Pathology, School of Dentistry, University of São Paulo (FOUSP), São Paulo, Brazil
| | - Norberto Nobuo Sugaya
- Department of Stomatology, School of Dentistry, University of São Paulo (FOUSP), São Paulo, Brazil
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113
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Arduino PG, Lodi G, Cabras M, Macciotta A, Gambino A, Conrotto D, Karimi D, Haddad GE, Carbone M, Broccoletti R. A Randomized Controlled Trial on Efficacy of Surgical Excision of Nondysplastic Leukoplakia to Prevent Oral Cancer. Cancer Prev Res (Phila) 2020; 14:275-284. [PMID: 32958584 DOI: 10.1158/1940-6207.capr-20-0234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/25/2020] [Accepted: 09/15/2020] [Indexed: 11/16/2022]
Abstract
The aim of this study was to evaluate the effectiveness of surgical excision to prevent cancer in patients with nondysplastic oral leukoplakia (OL). This study was the first randomized controlled clinical trial comparing surgical treatment with standard care in this group of patients. Patients were divided into two groups. The first group underwent standard care, that is smoking counseling, follow-up visits every 6 months, and control biopsy when indicated. The second group underwent surgical excision, together with standard care. Oral cancer onset was the primary outcome; secondary outcomes included healing, recurrence after surgery, onset of new lesions, and worsening of the primary lesions. The differences in distribution of the patients' and lesions' characteristics were investigated through nonparametrical tests (Wilcoxon rank-sum and Fisher exact). Univariate and multivariate logistic regressions have been performed to estimate the odds ratio of the treatment on the recurrence or worsening of the lesions. A total of 260 patients took part in the study of which 132 were women (50.8%); during the follow-up period, two subjects developed oral cancer, one for each arm. Surgical treatment, when compared with standard care, was associated with a lower probability of the treated zone to remain healed during the follow up period (OR = 7.43; 95% confidence interval, 2.96-22.66). In conclusion, it is possible to assumed that regular clinical follow-up could be considered a reliable standard of care among patients with nondysplastic OLs.Prevention Relevance: Oral white patches can transform into cancer and none has provided clinical guidelines to prevent it. For the first time ever, we have showed that the clinical follow up of non dysplastic lesions was able to provide benefits if compared with surgical excision.
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Affiliation(s)
- Paolo G Arduino
- Department of Surgical Sciences, CIR-Dental School, University of Turin, Turin, Italy.
| | - Giovanni Lodi
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Marco Cabras
- Department of Surgical Sciences, CIR-Dental School, University of Turin, Turin, Italy
| | - Alessandra Macciotta
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Alessio Gambino
- Department of Surgical Sciences, CIR-Dental School, University of Turin, Turin, Italy
| | - Davide Conrotto
- Department of Surgical Sciences, CIR-Dental School, University of Turin, Turin, Italy
| | - Dora Karimi
- Department of Surgical Sciences, CIR-Dental School, University of Turin, Turin, Italy
| | - Giorgia El Haddad
- Department of Surgical Sciences, CIR-Dental School, University of Turin, Turin, Italy
| | - Mario Carbone
- Department of Surgical Sciences, CIR-Dental School, University of Turin, Turin, Italy
| | - Roberto Broccoletti
- Department of Surgical Sciences, CIR-Dental School, University of Turin, Turin, Italy
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114
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Li CC, Almazrooa S, Carvo I, Salcines A, Woo SB. Architectural Alterations in Oral Epithelial Dysplasia are Similar in Unifocal and Proliferative Leukoplakia. Head Neck Pathol 2020; 15:443-460. [PMID: 32939744 PMCID: PMC8134567 DOI: 10.1007/s12105-020-01216-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 08/21/2020] [Indexed: 12/15/2022]
Abstract
The current WHO histopathologic criteria for oral epithelial dysplasia (ED) are based on architectural and cytologic alterations, and do not address other histopathologic features of ED. Here we propose new diagnostic criteria including architectural, organizational, and cytologic features for oral ED. Cases of unifocal leukoplakia (UL) and proliferative leukoplakia (PL) with clinical photographs and follow-up information were identified. Only cases that showed minimal cytologic atypia or mild ED were used to demonstrate critical architectural changes as defined in this study. Eight biopsies from eight UL patients and 34 biopsies from four PL patients were included. The biopsies showed (a) corrugated, verrucous or papillary architecture, (b) hyperkeratosis with epithelial atrophy, (c) bulky squamous epithelial proliferation, and (d) demarcated hyperkeratosis and "skip" segments. The architectural alterations defined here are as important as the currently used criteria for the diagnosis of ED. Clinicopathologic correlation when diagnosing oral ED is also of the utmost importance in accurate diagnosis.
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Affiliation(s)
- Chia-Cheng Li
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA USA
| | - Soulafa Almazrooa
- Department of Oral Diagnostic Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ingrid Carvo
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA USA
| | - Alfonso Salcines
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA USA
| | - Sook-Bin Woo
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA USA ,Division of Oral Medicine and Dentistry, Brigham and Women’s Hospital, Boston, MA USA ,Center for Oral Pathology, StrataDx Inc, Lexington, MA USA
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115
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Doss DM, Nirmal M, Veeravarmal, Saravanan R, Venkatesh A. Evaluating the expression of GLUT-1 in oral leukoplakia. J Oral Maxillofac Pathol 2020; 24:308-314. [PMID: 33456240 PMCID: PMC7802877 DOI: 10.4103/jomfp.jomfp_220_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 05/14/2019] [Indexed: 11/29/2022] Open
Abstract
Aim: The aim of the present study is to analyze the role of GLUT-1 in detection of early alterations occurring in oral leukoplakia. This study was to evaluate the expression of GLUT-1 in normal oral epithelium, the expression of GLUT-1 levels in the tissue samples of oral leukoplakia and to statistically compare the expression of GLUT-1 in normal epithelium and oral leukoplakia. Materials and Methods: The study sample comprised formalin-fixed and paraffin-embedded tissue specimens from 23 cases of histopathologically diagnosed oral leukoplakia and formalin-fixed paraffin-embedded tissue specimens from 10 cases of normal oral mucosa. Sections were mounted on glass slide coated with Aminopropyltriethoxysilane (APES; Sigma chemical co., USA) and processed for subsequent immunohistochemical study to demonstrate GLUT-1. Results: GLUT-1 expression in normal oral mucosa revealed weak positivity in all 10 cases (100%). The oral leukoplakia cases showed immunopositivity in all 23 cases (100%) of which 10 cases (39.14%) demonstrated focal positivity and 13 cases (60.86%) of diffuse positivity. The results were compared statistically using ANOVA test was significant at P = 0.002. Conclusion: The present study shows expression of GLUT-1 in leukoplakia may be used as a reliable marker to identify the high risk group for malignant transformation.
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Affiliation(s)
- Daffney Mano Doss
- Department of Oral and Maxillofacial Pathology, CSI College of Dental Science and Research Centre, Madurai, Tamil Nadu, India
| | - Madhava Nirmal
- Department of Oral and Maxillofacial Pathology, Rajah Muthiah Dental College and Hospital, Chidambaram, Tamil Nadu, India
| | - Veeravarmal
- Department of Oral and Maxillofacial Pathology, Rajah Muthiah Dental College and Hospital, Chidambaram, Tamil Nadu, India
| | - R Saravanan
- Department of Pedodontics, CSI College of Dental Science and Research Centre, Madurai, Tamil Nadu, India
| | - A Venkatesh
- Department of Conservative Dentistry and Endodontics, Sri Balaji Dental College and Hospital, Chennai, Tamil Nadu, India
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116
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Rivera C, Gallegos R, Figueroa C. Biomarkers of progression to oral cancer in patients with dysplasia: A systematic review. Mol Clin Oncol 2020; 13:42. [PMID: 32874572 DOI: 10.3892/mco.2020.2112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 03/31/2020] [Indexed: 12/16/2022] Open
Abstract
Identifying oral dysplastic lesions with a high risk of malignant transformation may create opportunities for early therapeutic interventions. Several tissue biomarkers have been suggested to date as prognostic indicators of the progression of dysplastic lesions to oral cancer. We herein present a systematic review (PROSPERO CRD42018086476), with the aim of identifying, evaluating and summarizing evidence on prognostic biomarkers of progression to oral cancer in patients with dysplasia. A search through MEDLINE/PubMed and Scopus databases was performed. The review only included primary articles that reported risk values associated with malignancy after a multivariate analysis. The quality of the findings was analyzed using the Reporting Recommendations for Tumor Marker Prognostic Studies, and research trends were established using SciCurve Open. A total of 4 potential biomarkers were identified: Degree of dysplasia, and the proteins retinal dehydrogenase 1, prominin-1 and podoplanin. All 3 protein biomarkers have been recognized as cancer stem cell markers. The studies were of acceptable quality, although none included sample size determinations. Due to the lack of validation and follow-up studies, these biomarkers are considered to be in a discovery phase and require validation by prospective clinical trials. The present analysis indicated that there are currently insufficient data to include these biomarkers in the clinical decision-making process.
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Affiliation(s)
- César Rivera
- Department of Stomatology, Oral Medicine Group, University of Talca, North Campus, Talca, Maule Region 3460000, Chile
| | - Rocío Gallegos
- School of Dentistry, Faculty of Health Sciences, University of Talca, North Campus, Talca, Maule Region 3460000, Chile
| | - Constanza Figueroa
- School of Dentistry, Faculty of Health Sciences, University of Talca, North Campus, Talca, Maule Region 3460000, Chile
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117
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Peng H, Wang Y, Shen L, Zhou G. Reflectance confocal microscopy characteristics of oral lichen planus: An analysis of 47 cases in a Chinese cohort. Exp Ther Med 2020; 20:6. [PMID: 32934671 PMCID: PMC7471943 DOI: 10.3892/etm.2020.9134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 06/10/2020] [Indexed: 12/15/2022] Open
Abstract
Reflectance confocal microscopy (RCM) is a non-invasive tool that provides real-time microscopic images and relatively high-resolution tissue images. This technique provides a link between clinical examination and histopathology. RCM has been used to detect skin diseases and has also recently been applied to diseases of the oral mucosa. The present study aimed to explore the features of oral lichen planus (OLP) using RCM. A total of 47 patients with OLP exhibiting a reticular pattern, were included in the present study. The lesion sites and healthy adjacent sites were examined using in vivo RCM, with the lesion being histopathologically confirmed after RCM examination. The confocal images were reviewed, and the features were described. Sensitivity and specificity analysis of the RCM features was also performed. RCM examination presented parakeratosis, acanthosis and connective tissue papillae disappearance, with the presence of large melanocytes and roundish inflammatory cell infiltration, as well as dilated vessels in the lesion tissue. The sensitivity and specificity of OLP for dorsal tongue lesions were not as satisfactory as those on other sites. The results implied that RCM may be a promising technique to detect OLP non-invasively in vivo.
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Affiliation(s)
- Hao Peng
- Department of Oral and Maxillofacial-Head Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China.,Department of Laser and Aesthetic Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
| | - Yufeng Wang
- Department of Oral Medicine, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
| | - Lingyue Shen
- Department of Oral and Maxillofacial-Head Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China.,Department of Laser and Aesthetic Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
| | - Guoyu Zhou
- Department of Oral and Maxillofacial-Head Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China.,Department of Laser and Aesthetic Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
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118
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Wang YY, Wang WC, Su CW, Hsu CW, Yuan SS, Chen YK. Overexpression of sprouty 1 protein in human oral squamous cell carcinogenesis. J Dent Sci 2020; 16:21-28. [PMID: 33384774 PMCID: PMC7770302 DOI: 10.1016/j.jds.2020.07.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 07/23/2020] [Indexed: 01/18/2023] Open
Abstract
Abstract Background/purpose Sprouty (SPRY) has four isoforms, SPRY1–4, and its deficiency produces haphazard ‘sprouting’ of tracheal tubules. This study investigated SPRY1 protein expression in human oral potentially malignant disorders (OPMDs) and oral squamous cell carcinomas (OSCCs). Materials and methods 90 OSCCs, 10 OPMDs with malignant transformation (MT), 17 OPMDs without MT, and six normal oral mucosa (NOM) tissue samples were subjected to immunohistochemical staining. Three human oral cancer cell lines (OCCLs), an oral precancer cell line (DOK), and a primary culture of normal oral keratinocytes (HOK) were used for western blotting. Results Significantly increased expression of SPRY1 protein from NOM and OPMD without MT to OSCC was observed. The protein expressions of SPRY1 in OCCLs were significantly enhanced as compared with DOK and HOK. Increased phosphor/total-ERK expression was observed in OCCLs as compared with HOK. A significantly increased SPRY1 protein level was noted in OPMDs with MT as compared with those without MT, in addition to a significant increase in DOK in comparison with HOK. Conclusion Our results indicated that overexpression of SPRY1 protein is potentially associated with human oral squamous cell carcinogenesis.
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Affiliation(s)
- Yen-Yun Wang
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Chen Wang
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Oral Pathology & Maxillofacial Radiology, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Oral & Maxillofacial Imaging Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chiang-Wei Su
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ching-Wei Hsu
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Shyng-Shiou Yuan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Translational Research Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Obstetrics and Gynecology and Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Corresponding author. Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan. Fax: +886 7 3210637.
| | - Yuk-Kwan Chen
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Oral Pathology & Maxillofacial Radiology, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Oral & Maxillofacial Imaging Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Corresponding author. School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan. Fax: +886 7 3210637.
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119
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Abstract
The Surveillance, Epidemiology, and End Results program from the National Cancer Institute reports that the aggregate number of oral cavity and pharyngeal cancer cases has been increasing over the past decade and, despite an overall decline in oral cavity cancers, this increase is largely related to a dramatic increase in cancers involving oropharyngeal subsites. Early detection of oral cavity cancers is commensurate with improved survival, and opportunistic screening by trained clinicians to detect oral cavity cancer and oral potentially malignant disorders is recommended by the American Dental Association and the American Academy of Oral Medicine.
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Affiliation(s)
- David Ojeda
- Department of Comprehensive Dentistry, University of Texas Health Science Center San Antonio, School of Dentistry, 7703 Floyd Curl Drive, office 2.565U, San Antonio, TX 78229-3900, USA
| | - Michaell A Huber
- Department of Comprehensive Dentistry, University of Texas Health Science Center San Antonio, School of Dentistry, 7703 Floyd Curl Drive, San Antonio, TX 78229-3900, USA
| | - Alexander R Kerr
- Department of Oral & Maxillofacial Pathology, Radiology and Medicine, New York University College of Dentistry, 345 East 24th Street, Room 813C, New York, NY 10010, USA.
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120
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Gene Expression Clustering and Selected Head and Neck Cancer Gene Signatures Highlight Risk Probability Differences in Oral Premalignant Lesions. Cells 2020; 9:cells9081828. [PMID: 32756466 PMCID: PMC7466020 DOI: 10.3390/cells9081828] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/27/2020] [Accepted: 07/31/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Oral premalignant lesions (OPLs) represent the most common oral precancerous conditions. One of the major challenges in this field is the identification of OPLs at higher risk for oral squamous cell cancer (OSCC) development, by discovering molecular pathways deregulated in the early steps of malignant transformation. Analysis of deregulated levels of single genes and pathways has been successfully applied to head and neck squamous cell cancers (HNSCC) and OSCC with prognostic/predictive implications. Exploiting the availability of gene expression profile and clinical follow-up information of a well-characterized cohort of OPL patients, we aim to dissect tissue OPL gene expression to identify molecular clusters/signatures associated with oral cancer free survival (OCFS). MATERIALS AND METHODS The gene expression data of 86 OPL patients were challenged with: an HNSCC specific 6 molecular subtypes model (Immune related: HPV related, Defense Response and Immunoreactive; Mesenchymal, Hypoxia and Classical); one OSCC-specific signature (13 genes); two metabolism-related signatures (3 genes and signatures raised from 6 metabolic pathways associated with prognosis in HNSCC and OSCC, respectively); a hypoxia gene signature. The molecular stratification and high versus low expression of the signatures were correlated with OCFS by Kaplan-Meier analyses. The association of gene expression profiles among the tested biological models and clinical covariates was tested through variance partition analysis. RESULTS Patients with Mesenchymal, Hypoxia and Classical clusters showed an higher risk of malignant transformation in comparison with immune-related ones (log-rank test, p = 0.0052) and they expressed four enriched hallmarks: "TGF beta signaling" "angiogenesis", "unfolded protein response", "apical junction". Overall, 54 cases entered in the immune related clusters, while the remaining 32 cases belonged to the other clusters. No other signatures showed association with OCFS. Our variance partition analysis proved that clinical and molecular features are able to explain only 21% of gene expression data variability, while the remaining 79% refers to residuals independent of known parameters. CONCLUSIONS Applying the existing signatures derived from HNSCC to OPL, we identified only a protective effect for immune-related signatures. Other gene expression profiles derived from overt cancers were not able to identify the risk of malignant transformation, possibly because they are linked to later stages of cancer progression. The availability of a new well-characterized set of OPL patients and further research is needed to improve the identification of adequate prognosticators in OPLs.
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121
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Rajanna VR, Raveendranath MC, Kathiresan S, Srinivasan S, Ilango J. Expression of Survivin in Oral Potentially Malignant Disorders: An Immunohistochemical Study. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2020; 12:S382-S388. [PMID: 33149491 PMCID: PMC7595508 DOI: 10.4103/jpbs.jpbs_114_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/06/2020] [Accepted: 03/02/2020] [Indexed: 11/04/2022] Open
Abstract
AIM The aim of this study was to compare the immunohistochemical expression of survivin in oral potentially malignant disorders (OPMDs) and evaluate its prognostic significance among oral leukoplakia (OL), oral submucous fibrosis (OSMF), and oral lichen planus (OLP). MATERIALS AND METHODS The study material consisted of 60 formalin-fixed paraffin-embedded tissue samples: 15 cases each of OL, OSMF, OLP, and normal oral mucosal epithelium as control. Survivin expression was analyzed immunohistochemically, and data analysis was accomplished using Statistical Package for Social Sciences, version 22.0 (SPSS Inc., Chicago, IL). Fisher's chi-square test was opted to compare the study groups. RESULTS Survivin was expressed in all the OPMDs including OL, OSMF, and OLP, but was absent in normal oral tissue samples. Higher immunoreactivity and survivin staining was observed in OLP compared to OL and OSMF whereas OL showed a significant difference in the distribution of survivin immunoexpression against OLP. An increased nuclear expression of survivin along with distribution in the basal and parabasal layers was evident in all OPMDs. CONCLUSION Survivin was expressed more in OLP in comparison to OSMF and OLP, indicating unfavorable prognosis. OL showed increased expression in comparison to OSMF, showing unfavorable prognosis. On the basis of this study, it was concluded that survivin may be used as an important diagnostic and prognostic marker for OPMDs.
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Affiliation(s)
- Venkatraman R Rajanna
- Department of Oral Pathology and Microbiology, Best Dental Science College and Hospital, Madurai, Tamil Nadu, India
| | - Murali C Raveendranath
- Department of Oral Pathology and Microbiology, Best Dental Science College and Hospital, Madurai, Tamil Nadu, India
| | - Shanmugam Kathiresan
- Department of Oral Pathology and Microbiology, Best Dental Science College and Hospital, Madurai, Tamil Nadu, India
| | - Soundarya Srinivasan
- Department of Oral Pathology and Microbiology, Best Dental Science College and Hospital, Madurai, Tamil Nadu, India
| | - Janani Ilango
- Department of Oral Pathology and Microbiology, Best Dental Science College and Hospital, Madurai, Tamil Nadu, India
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Sundberg J, Öhman J, Korytowska M, Wallström M, Kjeller G, Andersson M, Horal P, Lindh M, Giglio D, Kovács A, Sand L, Hirsch JM, Magda Araújo Ferracini L, de Souza ACMF, Parlatescu I, Dobre M, Hinescu ME, Braz-Silva PH, Tovaru S, Hasséus B. High-risk human papillomavirus in patients with oral leukoplakia and oral squamous cell carcinoma-A multi-centre study in Sweden, Brazil and Romania. Oral Dis 2020; 27:183-192. [PMID: 32568421 DOI: 10.1111/odi.13510] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/29/2020] [Accepted: 06/04/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Although causal associations between oral leukoplakia (OL), oral squamous cell carcinoma (OSCC) and high-risk human papillomavirus (HR-HPV) have been speculated upon in several reports, conclusive evidence has not been presented. This study investigates whether the number of cases of HR-HPV in OL has increased over time and whether the prevalence of HR-HPV-positive OL differs in various parts of the world. PATIENTS AND METHODS A total of 432 patients with OL from Sweden, Brazil and Romania were analysed. Patients were divided into historical (1992-2002) and contemporary (2011-2017) cohorts from the respective countries. Seventeen patients with OL developed oral squamous cell carcinoma (OSCC). A real-time PCR assay, targeting HPV sub-types 6,11,16,18,31,33,35,39,45,52,56,58 and 59, was performed to detect HR-HPV in patients with OL. RESULTS In the Swedish and Romanian cohorts, none of the investigated HPV sub-types were detected. In the Brazilian cohorts, five patients with OL (3%) were positive for HR-HPV, including four patients from the contemporary cohort (HPV 16, 31, 33) and one from the historical cohort (HPV 11). All the cases of OL that transformed into OSCC were HR-HPV-negative, as were the corresponding tumours. CONCLUSIONS In summary, the prevalence of HR-HPV in OL is low in all the tested countries, and the incidence has not changed over time. HR-HPV in OL does not seem to be a driver of oncogenesis.
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Affiliation(s)
- Jonas Sundberg
- Department of Oral Medicine and Pathology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jenny Öhman
- Department of Oral Medicine and Pathology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Magdalena Korytowska
- Clinic of Oral Medicine, Public Dental Service, Region Västra Götaland, NÄL Hospital, Trollhättan, Sweden
| | - Mats Wallström
- Department of Oral and Maxillofacial Surgery, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Göran Kjeller
- Department of Oral and Maxillofacial Surgery, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Maria Andersson
- Department of Infectious Medicine, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter Horal
- Department of Infectious Medicine, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Magnus Lindh
- Department of Infectious Medicine, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Daniel Giglio
- Department of Oncology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anikó Kovács
- Department of Clinical Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Lars Sand
- Department of Oral Biology, Faculty of Odontology, University of Oslo, Oslo, Norway
| | - Jan-Michaél Hirsch
- Department of Surgical Sciences, Oral and Maxillofacial Surgery, Uppsala University, Uppsala, Sweden
| | | | | | - Ioanina Parlatescu
- Faculty of Dental Medicine, Oral Pathology Discipline, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Maria Dobre
- Victor Babes Institute of Pathology, Bucharest, Romania
| | - Mihail-Eugen Hinescu
- Faculty of Dental Medicine, Oral Pathology Discipline, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,Victor Babes Institute of Pathology, Bucharest, Romania
| | - Paulo Henrique Braz-Silva
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil.,Laboratory of Virology, School of Medicine, Institute of Tropical Medicine of São Paulo, São Paulo, Brazil
| | - Serban Tovaru
- Faculty of Dental Medicine, Oral Pathology Discipline, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Bengt Hasséus
- Department of Oral Medicine and Pathology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Clinic of Oral Medicine, Gothenburg, Public Dental Service, Region Västra Götaland, Gothenburg, Sweden
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123
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Guan G, Mei L, Polonowita A, Hussaini H, Seo B, Rich AM. Malignant transformation in oral lichen planus and lichenoid lesions: a 14-year longitudinal retrospective cohort study of 829 patients in New Zealand. Oral Surg Oral Med Oral Pathol Oral Radiol 2020; 130:411-418. [PMID: 32771414 DOI: 10.1016/j.oooo.2020.07.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 06/12/2020] [Accepted: 07/04/2020] [Indexed: 12/31/2022]
Abstract
OBJECTIVE The aim of this study was to identify the rate of malignant transformation in a longitudinal cohort of patients with oral lichen planus and oral lichenoid lesion (OLP/OLL) and to assess the associations between clinicopathologic aspects and malignant transformation. STUDY DESIGN Data were taken from the records of 829 patients histologically diagnosed with OLP/OLL in the years 2005 to 2018. RESULTS Of the study patients, 548 (66.1%) were females and 281 (33.9%) were males. The average age at diagnosis was 57.3 years. The hyperplastic type was the most frequent (58.5%). Most patients had multiple sites of involvement, with the buccal mucosa being the most frequent site of biopsy. Oral epithelial dysplasia developed in 5 (0.6%) patients with a previous histologic diagnosis of OLP/OLL and developed oral squamous cell carcinoma (OSCC) in 23 patients (2.8%) during the follow-up period. The atrophic/ulcerative forms are 25.8 times more likely to progress to OSCC compared with the hyperplastic types (hazard ratio [HR] 25.8; P < .05). The HR increases by 5% with every year of age (HR 1.05; 95% confidence interval; P < .05). CONCLUSIONS In our study, oral epithelial dysplasia developed in less than 1% of patients with OLP/OLL, and OSCC in 2.8%during the follow-up period. The atrophic/ulcerative forms are 25.8 times more likely to progress to OSCC compared with the hyperplastic types. The HR increases by 5% with every year of age.
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Affiliation(s)
- Guangzhao Guan
- Department of Oral Diagnostic and Surgical Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
| | - Li Mei
- Department of Oral Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Ajith Polonowita
- Department of Oral Diagnostic and Surgical Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Haizal Hussaini
- Department of Oral Diagnostic and Surgical Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Benedict Seo
- Department of Oral Diagnostic and Surgical Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Alison Mary Rich
- Department of Oral Diagnostic and Surgical Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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124
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Li J, Liu Y, Zhang H, Hua H. Association between hyperglycemia and the malignant transformation of oral leukoplakia in China. Oral Dis 2020; 26:1402-1413. [PMID: 32348606 DOI: 10.1111/odi.13372] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 04/13/2020] [Accepted: 04/19/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES This study aimed to examine the association between hyperglycemia and the malignant transformation of oral leukoplakia (OLK). PATIENTS AND METHODS This retrospective case-control study involved 133 patients with the malignant transformation of OLK into oral squamous cell carcinoma (case group) and 266 patients with untransformed OLK (control group). The clinical history and follow-up data included age, gender, lesion size and location, and fasting plasma glucose. Logistic regression analysis, Kaplan-Meier survival analysis, and univariate and multivariate Cox regression analyses were used to assess the effects of risk factors on the malignant transformation of OLK. RESULTS Hyperglycemia (adjusted hazard ratio [AHR] = 4.7, p = .001), non-homogenous OLK (AHR = 3.0, p < .001), location of the lesion on the ventral surface of the tongue or floor of the mouth (AHR = 3.6, p < .001), and epithelial dysplasia (AHR = 2.8, p = .005) had significant effects on the malignant transformation of OLK. CONCLUSION Hyperglycemia, non-homogenous OLK, location of the lesion on the ventral surface of the tongue or floor of the mouth, and epithelial dysplasia might be associated with malignant transformation of OLK.
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Affiliation(s)
- Jin Li
- Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China.,School of Stomatology, Guangdong Province, Jinan University, Guangzhou, P. R. China
| | - Yang Liu
- Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China
| | - Hua Zhang
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, P. R. China
| | - Hong Hua
- Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China
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125
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Favia G, Capodiferro S, Limongelli L, Tempesta A, Maiorano E. Malignant transformation of oral proliferative verrucous leukoplakia: a series of 48 patients with suggestions for management. Int J Oral Maxillofac Surg 2020; 50:14-20. [PMID: 32586723 DOI: 10.1016/j.ijom.2020.05.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/09/2020] [Accepted: 05/29/2020] [Indexed: 12/11/2022]
Abstract
Proliferative verrucous leukoplakia (PVL) is a rare and refractory form of oral mucosal leukoplakia of unknown origin, characterized by high rates of malignant transformation. Different diagnostic criteria, terminologies, and therapeutic approaches have been proposed since the first report in 1985. There remains no general agreement regarding the clinical and histological diagnosis, prevention, and correct management of this disease. This retrospective study investigated 48 patients affected by PVL showing at least one malignant transformation and followed up at 2-month intervals. Twenty-five were female (52.1%) and 23 (47.9%) were male; their median age was 67 years (range 40-93 years). Follow-up ranged from 18 to 240 months. Clinical examination included the use of Lugol's solution to prevent clinical underestimation of the margins and toluidine blue for suspicious areas. Surgical excision by scalpel was the preferred treatment for suspicious lesions, with only five carcinomas surgically removed by diode laser and two by CO2 laser. All specimens were accurately mapped after formalin fixation. Fifteen patients (31.3%; 10 female, five male) developed one oral carcinoma, while 33 (68.7%) developed two or more primary tumours (range 3-12). Only four patients (8.3%), who developed between 2 and 8 oral squamous cell carcinomas (OSCCs), died of tumour-related causes. The pre-surgical clinical workup, subsequent surgical treatment, and follow-up are key to success for patients affected by PVL with malignant transformation into stage 1 OSCC and/or verrucous carcinoma, leading to a high overall survival rate.
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Affiliation(s)
- G Favia
- Department of Interdisciplinary Medicine, University of Bari, Bari, Italy.
| | - S Capodiferro
- Department of Interdisciplinary Medicine, University of Bari, Bari, Italy.
| | - L Limongelli
- Department of Interdisciplinary Medicine, University of Bari, Bari, Italy.
| | - A Tempesta
- Department of Interdisciplinary Medicine, University of Bari, Bari, Italy.
| | - E Maiorano
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy.
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126
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Increased expression of PD-1 and PD-L1 in oral lesions progressing to oral squamous cell carcinoma: a pilot study. Sci Rep 2020; 10:9705. [PMID: 32546692 PMCID: PMC7297711 DOI: 10.1038/s41598-020-66257-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 04/24/2020] [Indexed: 02/07/2023] Open
Abstract
Oral cancer is a devastating disease and is commonly preceded by a range of oral premalignant disorders. We investigated the expression of PD-1 and PD-L1 in oral epithelial dysplasia (OED) that progressed to oral squamous cell carcinoma (OSCC) compared to non-progressing dysplasia. 49 oral biopsies were analyzed, including 19 progressing cases, 20 cases did not progress, and 10 OSCC. Samples were stained with monoclonal antibodies for PD-1 and PD-L1, followed by conventional peroxidase reaction immunohistochemistry (IHC) imaged under light microscopy or fluorescent immunohistochemistry (FIHC) imaged using a confocal microscope. Images were analyzed using a novel semi-automated analysis protocol. PD-1/PD-L1 expression was assessed at the epithelium/tumor cells (TC) and at inflammatory cells in lamina propria. Our results show a significant increase in PD-L1 expression in progressing compared to non-progressing dysplasia. Using FIHC, we showed increased PD-L1 expression, increased nuclear density in progressing dysplasia and a better interobserver agreement compared with IHC. We developed a new FIHC-based quantitative method to study PD-1/PD-L1 expression in FFPE samples and showed that PD-L1 is highly expressed in premalignant lesions progressing to cancer. Our results suggest that immunomodulation via PD-L1/PD-1 pathway occurs prior to malignant transformation.
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127
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de Pauli Paglioni M, Migliorati CA, Schausltz Pereira Faustino I, Linhares Almeida Mariz BA, Oliveira Corrêa Roza AL, Agustin Vargas P, Franco Paes Leme A, Bianca Brandão T, Prado Ribeiro AC, Ajudarte Lopes M, Santos-Silva AR. Laser excision of oral leukoplakia: Does it affect recurrence and malignant transformation? A systematic review and meta-analysis. Oral Oncol 2020; 109:104850. [PMID: 32540612 DOI: 10.1016/j.oraloncology.2020.104850] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 11/18/2022]
Abstract
Oral leukoplakia (OL) is a white lesion with high potential of recurrence and malignant transformation. The variable clinical and histopathological features of OL may potentially impact both treatment and prognosis. Current literature shows that post treatment rates of recurrence and malignant transformation vary widely. The use of surgical lasers have been proposed with the objective of improving outcomes. We performed a systematic review and a comprehensive meta-analysis dedicated to pooling the rates of recurrence and malignant transformation of OL lesions treated using the main types of surgical lasers available. Scopus, MEDLINE/PubMed, and Embase were searched electronically. A total of 36 articles met the inclusion criteria. Selected studies included OL lesions that were treated by evaporation or excision using Nd:YAG laser, Er:YAG laser, CO2 laser, KTP laser, or diode laser. The results of this systematic review and meta-analysis suggest that surgical laser excision of OL may decrease recurrence rates but have no effect on the malignant transformation of OL when compared with conventional treatments.
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Affiliation(s)
- Mariana de Pauli Paglioni
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil.
| | | | | | | | | | - Pablo Agustin Vargas
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | | | | | | | - Marcio Ajudarte Lopes
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Alan Roger Santos-Silva
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
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128
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Mao T, Xiong H, Hu X, Hu Y, Wang C, Yang L, Huang D, Xia K, Su T. DEC1: a potential biomarker of malignant transformation in oral leukoplakia. Braz Oral Res 2020; 34:e052. [PMID: 32578762 DOI: 10.1590/1807-3107bor-2020.vol34.0052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 03/16/2020] [Indexed: 11/22/2022] Open
Abstract
The purpose of this study was to analyze the differential expression of DEC1 in oral normal mucosa (NM), oral leukoplakia (OLK) and oral squamous cell carcinoma (OSCC). Surgically excised specimens from patients with OLK (n = 47), OSCC (n = 30) and oral normal mucosa (n=11) were immunostained for DEC1. The expression of DEC1 protein was evaluated, and its association with the clinicopathological features was analyzed. The expression of DEC1 in NM, OLK and OSCC tissues increased in turn, and significant differences were observed among the groups (P < 0.0001). In terms of the association between DEC1 expression and epithelial dysplasia, DEC1 expression was lower in hyperkeratosis without dysplasia (H-OLK) than in OLK with moderate to severe dysplasia (S-OLK), and these differences were significant (p < 0.05). The expression of DEC1 in OSCC with OLK was significantly higher than that in OSCC without OLK (p < 0.01). Therefore, DEC1 could be a potential biomarker of malignant transformation in the carcinogenesis of OSCC, which may provide a new research direction for the transformation of oral potentially malignant disorders (OPMDs) into OSCC.
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Affiliation(s)
- Ting Mao
- Central South University, Xiangya Hospital, Center of Stomatology, Changsha, Hunan, China
| | - Haofeng Xiong
- Central South University, Center for Medical Genetics, School of Life Sciences, Changsha, Hunan, China
| | - Xin Hu
- Central South University, Xiangya Hospital, Center of Stomatology, Changsha, Hunan, China
| | - Yue Hu
- Central South University, Xiangya Hospital, Center of Stomatology, Changsha, Hunan, China
| | - Can Wang
- Central South University, Xiangya Hospital, Center of Stomatology, Changsha, Hunan, China
| | - Liudi Yang
- Central South University, Xiangya Hospital, Center of Stomatology, Changsha, Hunan, China
| | - Danni Huang
- Central South University, Xiangya Hospital, Center of Stomatology, Changsha, Hunan, China
| | - Kun Xia
- Central South University, Center for Medical Genetics, School of Life Sciences, Changsha, Hunan, China
| | - Tong Su
- Central South University, Xiangya Hospital, Center of Stomatology, Changsha, Hunan, China
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129
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Huang F, Xin C, Lei K, Bai H, Li J, Chen Q. Noncoding RNAs in oral premalignant disorders and oral squamous cell carcinoma. Cell Oncol (Dordr) 2020; 43:763-777. [PMID: 32495292 DOI: 10.1007/s13402-020-00521-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) has the highest mortality rate among all head and neck cancers and a relatively low five-year survival rate. Generally, the development of an oral mucosal malignancy represents a multistep process beginning with normal oral mucosa epithelium and culminating in OSCC after transitioning through intermediary oral premalignant disorders (OPMDs), during which dysplasia is often observed. Noncoding RNAs (ncRNAs) are RNAs that are not translated into proteins, but still can participate in regulating neoplastic cell behavior. Recently, data have emerged on the role of ncRNAs in the progression of oral mucosal malignant diseases, but the exact mechanisms through which ncRNAs are involved remain to be elucidated. CONCLUSIONS Knowledge on ncRNAs has added an extra layer of complexity to our understanding of the malignant progression of oral mucosal diseases. The identification of ncRNAs in multiple body fluids as biomarkers may provide new diagnostic options that can be used for the diagnosis and prognosis of OPMDs and OSCC, respectively. Despite overall advances that have been made in cancer treatment, the treatment options for OPMDs and OSCC are still limited. Several studies have shown that ncRNA-based treatment regimens may hold promise as alternative methods for treating OPMDs and OSCC. The use of ncRNAs as therapeutic agents, including miR-155, miR-34 and lncRNA HOTAIR, appear promising.
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Affiliation(s)
- Fei Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Chuan Xin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Kexin Lei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Hetian Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Jing Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China.
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
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130
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Rubert A, Bagán L, Bagán JV. Oral leukoplakia, a clinical-histopathological study in 412 patients. J Clin Exp Dent 2020; 12:e540-e546. [PMID: 32665812 PMCID: PMC7335600 DOI: 10.4317/jced.57091] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 04/26/2020] [Indexed: 12/02/2022] Open
Abstract
Background A retrospective clinical-histopathological study was made of the evolution of oral leukoplakia over time, staging the disease according to the classification of van der Waal.
Material and Methods A study was made of 412 patients with oral leukoplakia, analyzing the corresponding clinical factors and histopathological findings; assessing associations between the different clinical presentations and epithelial dysplasia; and evaluating the factors influencing malignant transformation of the lesions.
Results Clinically, homogeneous presentations were seen to predominate (n = 336, 81.6%), while histologically most of the lesions exhibited no dysplastic changes (n = 271; 65.7%). Stage 1 of the van der Waal classification was the most common presentation (n = 214; 51.9%). The lesion malignization rate was 8.3%, and the factors associated to a significantly increased malignization risk were non-homogeneous OL lesions (p=0.00), lesion location in the tongue (p=0.00), and the presence of epithelial dysplasia (p=0.00).
Conclusions In our series of patients with oral leukoplakia, malignization was associated to the less common clinical presentations of the disease, i.e., non-homogeneous lesions, and the latter tended to exhibit high grade epithelial dysplasia. Key words:Oral leukoplakia, potentially malignant disorders, malignant transformation.
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Affiliation(s)
- Andrea Rubert
- Assistant Professor of Oral Medicine. European University of Valencia
| | - Leticia Bagán
- Associate Professor of Oral Medicine. University of Valencia. Av. de Blasco Ibáñez, 15, 46010 València
| | - Jose V Bagán
- Chairman of Oral Medicine. University of Valencia. Head of the Department of Stomatology and Maxillofacial Surgery University General Hospital. Valencia (Spain) Fundación de Investigación del Hospital General Universitario of Valencia
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131
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Iqbal J, Patil R, Khanna V, Tripathi A, Singh V, Munshi MAI, Tiwari R. Role of fractal analysis in detection of dysplasia in potentially malignant disorders. J Family Med Prim Care 2020; 9:2448-2453. [PMID: 32754518 PMCID: PMC7380790 DOI: 10.4103/jfmpc.jfmpc_159_20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 03/13/2020] [Accepted: 03/23/2020] [Indexed: 01/19/2023] Open
Abstract
Background: Fractal analysis is, a noninvasive method, used to determine the intricate characteristics of the matter. Oral leukoplakia (OL), a potential malignant disorder, has definite propensity to turn in to malignancy. In such lesions, fractal dimension analysis (FDA) could be helpful in the early detection of malignant transformation. Objectives: To determine the efficacy of fractal dimension analysis in detecting malignancy potential of oral leukoplakia. Materials and Methods: After ethical clearance, we enrolled 121 patients in our study. Lesions were photographed before and after toluidine staining. Image J software was used to analyze fractal dimensions (FDs) of digital image and results were compared with biopsy. Results: Fractal dimension value is significantly higher in leukoplakia with dysplastic changes. FD values increase as age of patients increases. FD value in leukoplakia with different tobacco products showed more positive correlation with surti/khaini abusers. Conclusion: Fractal dimension analysis is a useful method in determination of complication in OL cases and can be used as an effective, noninvasive screening tool at primary healthcare centers for early intervention.
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Affiliation(s)
- Javed Iqbal
- Department of Oral Medicine and Radiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Ranjitkumar Patil
- Department of Oral Medicine and Radiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Vikram Khanna
- Department of Oral Medicine and Radiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Anurag Tripathi
- Department of Oral Medicine and Radiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Vandana Singh
- Department of Oral Medicine and Radiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - M A I Munshi
- Department of Oral and Maxillofacial Surgery, Sri Ramakrishna Dental College and Hospital, Coimbatore, Tamil Nadu, India
| | - Rahul Tiwari
- Consultant Oral and Maxillofacial Surgeon, Clove Dental and OMNI Hospitals, Visakhapatnam, Andhra Pradesh, India
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132
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Wine Consumption and Oral Cavity Cancer: Friend or Foe, Two Faces of Janus. Molecules 2020; 25:molecules25112569. [PMID: 32486484 PMCID: PMC7321235 DOI: 10.3390/molecules25112569] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/21/2020] [Accepted: 05/28/2020] [Indexed: 12/29/2022] Open
Abstract
The health benefits of moderate wine consumption have been extensively studied during the last few decades. Some studies have demonstrated protective associations between moderate drinking and several diseases including oral cavity cancer (OCC). However, due to the various adverse effects related to ethanol content, the recommendation of moderate wine consumption has been controversial. The polyphenolic components of wine contribute to its beneficial effects with different biological pathways, including antioxidant, lipid regulating and anti-inflammatory effects. On the other hand, in the oral cavity, ethanol is oxidized to form acetaldehyde, a metabolite with genotoxic properties. This review is a critical compilation of both the beneficial and the detrimental effects of wine consumption on OCC.
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133
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Malignant transformation of oral leukoplakia: a follow-up study. Clin Oral Investig 2020; 24:4563-4569. [PMID: 32436158 DOI: 10.1007/s00784-020-03322-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 05/01/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The main objective of the study was to identify the determinants that contribute to the malignant transformation of oral leukoplakia in a group of patients managed in secondary care. A secondary objective was to compare two dysplasia grading systems to determine their utility in assessing the prognosis. MATERIAL AND METHODS The cohort consisted of 93 patients diagnosed during the period 2009-2013. The variables recorded and analysed included age and sex, clinical presentation (colour) and severity of oral epithelial dysplasia (OED) scored by the WHO (2005) and the binary grading systems. The planned management included excision of high-grade dysplasia and observation of low-grade dysplasia lesions based on the WHO grading system. Patient factors were transcribed from the pathology records and updated using a questionnaire sent out to the whole group of patients. Data were analysed using χ2 test and Kaplan-Meier analysis (P < 0.05). RESULTS Complete follow-up data were available for 93 patients. Malignant transformation occurred in 7 patients (7.5%) during a mean follow-up period of 30 months. Among the surgically excised group (n = 51), a recurrence of oral leukoplakia was noted in 16 patients (31%). WHO OED grading (P = 0.02) and the presence of red areas (P = 0.012) were useful in predicting malignant transformation with severe epithelial dysplastic lesions and red and white mixed lesions showing higher rates. CONCLUSION Leukoplakias (7.5%) transformed over a mean follow-up period of 30 months. Dysplasia grading and the clinical appearance by colour (mixed white and red) were significant predictors of malignant transformation CLINICAL SIGNIFICANCE: Patients with erythroleukoplakia and those diagnosed with moderate or severe epithelial dysplasia require more intensive interventions as such lesions have a higher risk of developing a malignancy.
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134
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Oral potentially malignant disorders: A scoping review of prognostic biomarkers. Crit Rev Oncol Hematol 2020; 153:102986. [PMID: 32682268 DOI: 10.1016/j.critrevonc.2020.102986] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 05/07/2020] [Accepted: 05/12/2020] [Indexed: 02/08/2023] Open
Abstract
This scoping review aimed to map evidence regarding biomarkers for malignant transformation of oral potentially malignant disorders (OPMD). Seventy-three longitudinal studies investigating prognostic biomarkers for OPMD malignant transformation were included, encompassing 5612 disorders and 108 biomarkers, of which 72 were investigated by immunohistochemistry. Most biomarkers were assessed in one or two studies, while five (p53, Ki-67, podoplanin, p16, and DNA ploidy) were analyzed in five or more studies. All studies investigating podoplanin (n = 8) reported a significant association between positive/high immunoexpression and malignant transformation. Similarly, all studies assessing DNA ploidy (n = 5) found that aneuploidy or gross genomic aberrations were significantly associated with malignant transformation. Included studies often presented mixed data from different OPMD subtypes, inadequate description of population characteristics, and lack of adjusted analysis for confounding factors. One hundred and eight biomarkers were identified and, from these, podoplanin immunoexpression and DNA ploidy were considered promising candidates for future long-term clinical research.
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135
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Different Expression of Aldehyde Dehydrogenases 1A1 and 2 in Oral Leukoplakia With Epithelial Dysplasia and in Oral Squamous Cell Carcinoma. Appl Immunohistochem Mol Morphol 2020; 27:537-542. [PMID: 29189260 DOI: 10.1097/pai.0000000000000612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oral potentially malignant disorders (OPMD) may develop malignant characteristics and transform into oral squamous cell carcinoma (OSCC) in a range of 1% to 2% of cases. Chronic alcohol consumption is associated with carcinogenesis, but its mechanism has not yet been fully elucidated. ALDH1A1 and 2, isoenzymes responsible for aldehyde oxidation involved in ethanol metabolism may be associated with the development of malignant head and neck neoplasms. The aim of this study was to analyze the expression of ALDH1A1 and ALDH2 in oral leukoplakia with epithelial dysplasia (OLP) and OSCC. A retrospective study was conducted on 27 cases of OLP and 30 cases of OSCC. Clinical data were obtained from medical records, and all cases were classified as mild, moderate, and severe for OLP, and well-differentiated, moderately differentiated, or poorly differentiated for OSCC cases. The ALDH1A1 and ALDH2 expression in OLP and OSCC was evaluated by the immunohistochemical technique. There was predominance of the male sex, in both OLP and OSCC cases. Oral tongue was the most affected site in both groups. OLP showed positive protein expression of ALDH1A1 in all cases, both basal and suprabasal epithelial layers, whereas ALDH2 showed less protein expression. In OSCC, the immunohistochemical reaction for ALDH1A1 expression was negative in 70%, whereas ALDH2 expression was positive in all cases. This study demonstrated the gradual loss of ALDH1A1 expression in OSCC in comparison with OLP, and the increased ALDH2 expression in OSCC.
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136
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Pérot P, Falguieres M, Arowas L, Laude H, Foy JP, Goudot P, Corre-Catelin N, Ungeheuer MN, Caro V, Heard I, Eloit M, Gessain A, Bertolus C, Berthet N. Investigation of viral etiology in potentially malignant disorders and oral squamous cell carcinomas in non-smoking, non-drinking patients. PLoS One 2020; 15:e0232138. [PMID: 32348362 PMCID: PMC7190135 DOI: 10.1371/journal.pone.0232138] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/07/2020] [Indexed: 12/11/2022] Open
Abstract
Head and neck squamous cell carcinomas (HNSCC) are the seventh most frequent cancers. Among HNSCCs, oral squamous cell carcinomas (OSCCs) include several anatomical locations of the oral cavity, but exclude the oropharynx. The known risk factors for OSCCs are mainly alcohol consumption and tobacco use for at least 75-80% of cases. In addition to these risk factors, Human papillomavirus (HPV) types 16 and 18, classified as high-risk (HR) HPV genotypes, are considered as risk factors for oropharyngeal cancers, but their role in the development of OSCC remains unclear. We tested the hypothesis of viral etiology in a series of 68 well-characterized OSCCs and 14 potentially malignant disorders (PMD) in non-smoking, non-drinking (NSND) patients using broad-range, sensitive molecular methodologies. Deep-sequencing of the transcriptome did not reveal any vertebrate virus sequences other than HPV transcripts, detected in only one case. In contrast, HPV DNA was detected in 41.2% (28/68) and 35.7% (5/14) of OSCC and PMD cases, respectively. Importantly, 90.9% (30/33) of these belonged to the Betapapillomavirus genus, but no viral transcripts were detected. Finally, high-throughput sequencing revealed reads corresponding to transcripts of the Trichomonas vaginalis virus (TVV), which were confirmed by RT-PCR in two OSCCs. Our results strongly suggest that Alphapapillomavirus genotypes classified as HR are not involved in the development of OSCCs in NSND patients and that known oncogenic infectious agents are absent in these specific OSCCs. Any possible direct or indirect role of Betapapillomavirus genus members and TVV in OSCCs remains speculative and requires further investigation.
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Affiliation(s)
- Philippe Pérot
- Pathogen Discovery Laboratory, Institut Pasteur, Biology of Infection Unit, Paris, France
| | - Michaël Falguieres
- Institut Pasteur, Centre national de référence (CNR) des papillomavirus humains (HPV), Paris, France
| | - Laurence Arowas
- Institut Pasteur, Centre national de référence (CNR) des papillomavirus humains (HPV), Paris, France
| | - Hélène Laude
- Institut Pasteur, Centre national de référence (CNR) des papillomavirus humains (HPV), Paris, France
| | - Jean-Philippe Foy
- Centre Léon Bérard, Centre de recherche en cancérologie de Lyon, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Patrick Goudot
- Department of Oral and Maxillo-Facial Surgery, Pitié-Salpêtrière Hospital, Paris, France
| | - Nicole Corre-Catelin
- Institut Pasteur, Clinical Investigation and Acces to Bioresources Department, Paris, France
| | - Marie-Noëlle Ungeheuer
- Institut Pasteur, Clinical Investigation and Acces to Bioresources Department, Paris, France
| | - Valérie Caro
- Institut Pasteur, Unité Environnement et risques infectieux, Cellule d’Intervention Biologique d’Urgence, Paris, France
| | - Isabelle Heard
- Institut Pasteur, Centre national de référence (CNR) des papillomavirus humains (HPV), Paris, France
| | - Marc Eloit
- Pathogen Discovery Laboratory, Institut Pasteur, Biology of Infection Unit, Paris, France
- National Veterinary School of Alfort, Paris-Est University, Maisons-Alfort, France
| | - Antoine Gessain
- Institut Pasteur, Unité d'Epidémiologie et Physiopathologie des Virus Oncogènes, CNRS UMR3569, Paris, France
| | - Chloé Bertolus
- Department of Oral and Maxillo-Facial Surgery, Pitié-Salpêtrière Hospital, Paris, France
- Sorbonne University, Paris, France
| | - Nicolas Berthet
- Institut Pasteur, Unité Environnement et risques infectieux, Cellule d’Intervention Biologique d’Urgence, Paris, France
- Institut Pasteur, Unité d'Epidémiologie et Physiopathologie des Virus Oncogènes, CNRS UMR3569, Paris, France
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Klein IP, Meurer L, Danilevicz CK, Squarize CH, Martins MD, Carrard VC. BMI-1 expression increases in oral leukoplakias and correlates with cell proliferation. J Appl Oral Sci 2020; 28:e20190532. [PMID: 32348447 PMCID: PMC7185978 DOI: 10.1590/1678-7757-2019-0532] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/09/2020] [Indexed: 11/30/2022] Open
Abstract
Oral leukoplakia (OL) is a white lesion of an indeterminate risk not related to any excluded (other) known diseases or disorders that carry no increased risk for cancer. Many biological markers have been used in an attempt to predict malignant transformation; however, no reliable markers have been established so far.
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Affiliation(s)
- Isadora Peres Klein
- Departamento de Odontologia Conservadora, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brasil
| | - Luise Meurer
- Departamento de Patologia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brasil
| | - Chris Krebs Danilevicz
- Departamento de Odontologia Conservadora, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brasil
| | - Cristiane Helena Squarize
- Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Manoela Domingues Martins
- Departamento de Odontologia Conservadora, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brasil
| | - Vinicius Coelho Carrard
- Departamento de Odontologia Conservadora, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brasil
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138
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Srivastava R, Sharma L, Pradhan D, Jyoti B, Singh O. Prevalence of oral premalignant lesions and conditions among the population of Kanpur City, India: A cross-sectional study. J Family Med Prim Care 2020; 9:1080-1085. [PMID: 32318471 PMCID: PMC7114062 DOI: 10.4103/jfmpc.jfmpc_912_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 12/04/2019] [Accepted: 12/26/2019] [Indexed: 02/06/2023] Open
Abstract
Background The habit of smoking and chewing tobacco is associated with various types of oral mucosal lesions and conditions, many of which pose a potential threat to cancer growth. The present study aims to evaluate the prevalence of potentially malignant lesions (PML) and oral cancer in North India and to identify the associated risk factors. Materials and Methods A cross-sectional study was carried out in the Department of Oral Medicine and Radiology Rama Dental College Hospital and research center Kanpur over a period of 5 years with1,10,625 patients. Participants were divided into study group with a positive history of the chewing habit as well as oral lesions and control group who had a positive history of habits with no oral lesions. Detailed case history and clinical examination were carried out under visible light by trained professionals to assess any oral mucosal changes. Results The study group consisted of 76.31% males and 23.69% females. In total, 84.34% participants in the study group were literate. However, 57.56% subjects were having oral submucous fibrosis, 23.7% were having leukoplakia, 13.12% were having Lichen planus, and 5.62% were having oral cancer. Conclusion Results from the present study indicate that tobacco smoking, chewing of betel quid with and/or without tobacco chewing are the major risk factors for PML and oral cancer.
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Affiliation(s)
- Rahul Srivastava
- Department of Oral Medicine and Radiology, Rama Dental College Hospital and Research Centre, Kanpur, India
| | - Lokesh Sharma
- Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, India
| | - Devina Pradhan
- Department of Public Health Dentistry, Rama Dental College Hospital and Research Centre, Kanpur, India
| | - Bhuvan Jyoti
- Department of Dental Surgery, Ranchi Institute of Neuro-Psychiatry and Allied Sciences, Ranchi, Jharkhand, India
| | - Omveer Singh
- Department of Public Health Dentistry, King George Medical University, Lucknow, Uttar Pradesh, India
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139
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Samimi M, Le Gouge A, Boralevi F, Passeron T, Pascal F, Bernard P, Agbo-Godeau S, Leducq S, Fricain JC, Vaillant L, Francès C. Topical rapamycin versus betamethasone dipropionate ointment for treating oral erosive lichen planus: a randomized, double-blind, controlled study. J Eur Acad Dermatol Venereol 2020; 34:2384-2391. [PMID: 32128907 DOI: 10.1111/jdv.16324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 02/18/2020] [Indexed: 01/15/2023]
Abstract
BACKGROUND Although superpotent topical corticosteroids are the first-line treatment for oral erosive lichen planus (OELP), topical rapamycin was found efficient in a previous case series. OBJECTIVES To compare the efficacy and safety of topical rapamycin and betamethasone dipropionate ointment for OELP in a randomized, double-blind trial. METHODS Patients were randomized to receive treatment with betamethasone dipropionate ointment 0.05% in Orabase® or topical rapamycin solution (1 mg/mL) on lesions twice daily for 3 months, followed by 3 months of observation. The primary outcome was clinical remission after 3 months of treatment. Secondary outcomes were clinical remission after 1 and 2 months, reduced oral pain and reduced impact on food intake after 3 months, clinical recurrence after treatment withdrawal, and adverse events. RESULTS During a 4-year period, 76 patients were randomized and 75 received treatment (rapamycin, n = 39; betamethasone, n = 36). At 3 months, 39.4% of patients with betamethasone and 27.3% with rapamycin showed clinical remission (odds ratio 0.68, 95% CI [0.24; 1.89]; P = 0.46). Rates of remission after 1 and 2 months, reduction in pain and impact on food intake after 3 months, were higher with betamethasone than rapamycin. Recurrence of oral erosions was similar between groups. Adverse events occurred in 43.6% of patients with rapamycin (mostly burning sensation, impaired taste) and 27.8% with betamethasone (mostly oral candidiasis). CONCLUSION Although the study was limited by insufficient recruitment, we did not find any superiority of topical rapamycin over betamethasone dipropionate ointment for OELP. Given the rapid remission and pain improvement in the betamethasone group, it appears that superpotent topical corticosteroids should remain the first-line treatment for OELP.
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Affiliation(s)
- M Samimi
- Department of Dermatology, University Hospital of Tours, University of Tours, Tours, France.,ISP 1282 INRA University of Tours, Tours, France
| | - A Le Gouge
- Biometrical Department, Centre d'Investigation Clinique, INSERM CIC1415, University Hospital of Tours, Tours, France
| | - F Boralevi
- Department of Dermatology, National Centre for Rare Skin Disorders, University Hospital of Bordeaux and INSERM U1035, Bordeaux, France
| | - T Passeron
- Department of Dermatology, CHU Nice, INSERM U1065, Centre Méditerranéen de Médecine Moléculaire (C3M), Université Côte d'Azur, Nice, France
| | - F Pascal
- Department of Dermatology and Stomatology, Saint-Louis Hospital, AP-HP, Université Paris 7-Diderot, Paris, France
| | - P Bernard
- Department of Dermatology, Reims University Hospital, University of Reims-Champagne-Ardenne, Reims, France
| | - S Agbo-Godeau
- Department of Stomatology and Maxillo-Facial Surgery, Groupe hospitalier Pitié-Salpêtrière-Charles-Foix, AP-HP, Paris, France
| | - S Leducq
- Department of Dermatology, University Hospital of Tours, University of Tours, Tours, France.,Biometrical Department, Centre d'Investigation Clinique, INSERM CIC1415, University Hospital of Tours, Tours, France
| | - J C Fricain
- Department of Dentistry and Oral Health, Inserm U1026 Bioingénierie Tissulaire - BioTis, Bordeaux, University Hospital of Bordeaux, France
| | - L Vaillant
- Department of Dermatology, University Hospital of Tours, University of Tours, Tours, France
| | - C Francès
- Department of Dermatology and Allergology, Hospital Tenon, Université Paris VI Pierre et Marie Curie, Sorbonnes Universités, Paris, France
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Andreadis D, Pavlou AM, Vakirlis E, Anagnostou E, Vrani F, Poulopoulos A, Kolokotronis A, Ioannidis D, Sotiriou E. Daylight photodynamic therapy for the management of actinic cheilitis. Arch Dermatol Res 2020; 312:731-737. [PMID: 32266532 DOI: 10.1007/s00403-020-02069-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 03/30/2020] [Indexed: 12/20/2022]
Abstract
Early identification and adequate treatment of actinic cheilitis (AC), which affects the lower lip vermillion and is considered a precursor of squamous cell carcinoma, is mandatory. Photodynamic therapy (PDT) has been successfully used in AC. PDT with the use of daylight (DLPDT) is equally effective and more convenient than the conventional PDT. Data on short and long-term efficacy of DLPDT in AC are limited. Our primary purpose was to assess efficacy of DLPDT in AC as well as safety and tolerance. Twenty-two individuals with histologically confirmed AC received 2 MAL (5-aminolevulinic acid)-DLPDT sessions 1 week apart. Patients were evaluated clinically 3, 6, and 12 months after treatment. Non-complete responders were biopsied and excluded from the study if histological alterations were indicative of AC. Adverse events were recorded from baseline to the end of the 12-month follow-up period. Twenty patients completed the study. Overall, complete clinical response 12 months after treatment was 80% (16/20), while an association between treatment response and grade of dysplasia was observed (p = 0.016). With respect to response by grade, complete clinical response achieved in grade I AC was 100% (12/12) and 50% (4/8) in grade II AC. Main adverse events included mild erythema, oedema, and scaling, with no pain associated with DLPDT. According to our results, DLPDT seems to be of significant benefit for the treatment of grade I AC. Combination with the other treatment modalities could improve the efficacy in grade II AC. Further studies are needed for the assessment of late recurrences.
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Affiliation(s)
- Dimitrios Andreadis
- Department of Oral Medicine/Pathology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Achilleia -Maria Pavlou
- Department of Oral Medicine/Pathology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Efstratios Vakirlis
- First Dermatology Department, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleftherios Anagnostou
- Department of Oral Medicine/Pathology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Fotini Vrani
- First Dermatology Department, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athanasios Poulopoulos
- Department of Oral Medicine/Pathology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alexandros Kolokotronis
- Department of Oral Medicine/Pathology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios Ioannidis
- First Dermatology Department, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Elena Sotiriou
- First Dermatology Department, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
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141
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Hóstio BM, de Macedo Bernardino Í, Pereira JV, Bento PM, Godoy GP, de Castro Gomes DQ. Oral cancer and potentially malignant disorders: a 12-year epidemiological and clinical analysis in a metropolitan region of northeastern Brazil. J Public Health (Oxf) 2020. [DOI: 10.1007/s10389-019-01054-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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142
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Periodontitis, oral hygiene habits, and risk of upper aerodigestive tract cancers: a case-control study in Maharashtra, India. Oral Surg Oral Med Oral Pathol Oral Radiol 2020; 129:339-346. [DOI: 10.1016/j.oooo.2019.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 10/09/2019] [Accepted: 12/09/2019] [Indexed: 12/12/2022]
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143
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Evaluation of Proinflammatory, NF-kappaB Dependent Cytokines: IL-1α, IL-6, IL-8, and TNF-α in Tissue Specimens and Saliva of Patients with Oral Squamous Cell Carcinoma and Oral Potentially Malignant Disorders. J Clin Med 2020; 9:jcm9030867. [PMID: 32245251 PMCID: PMC7141524 DOI: 10.3390/jcm9030867] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/15/2020] [Accepted: 03/17/2020] [Indexed: 01/29/2023] Open
Abstract
Background: Oral squamous cell carcinoma (OSCC) is a life-threatening disease. It could be preceded by oral potentially malignant disorders (OPMDs). It was confirmed that chronic inflammation can promote carcinogenesis. Cytokines play a crucial role in this process. The aim of the study was to evaluate interleukin-1alpha (IL-1α), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor alpha (TNF-α) in tissue specimens and saliva of patients with OSCC and OPMDs. Methods: Cytokines were evaluated in 60 tissue specimens of pathological lesions (OSCCs or OPMDs) and in 7 controls (normal oral mucosa, NOM) by immunohistochemistry and in saliva of 45 patients with OSCC or OPMDs and 9 controls (healthy volunteers) by enzyme-linked immunosorbent assays. Results: Immunohistochemical analysis revealed significantly higher expression of IL-8 in OSCC specimens and TNF-α in OSCCs and OPMDs with dysplasia as compared to NOM. Moreover, expression of TNF-α was significantly higher in oral leukoplakia and oral lichen planus without dysplasia, whereas expression of IL-8 only in oral leukoplakia without dysplasia in comparison with NOM. Salivary concentrations of all evaluated cytokines were significantly higher in patients with OSCC than in controls. Moreover, levels of IL-8 were significantly higher in saliva of patients with OPMDs with dysplasia as compared to controls and in OSCC patients as compared to patients with dysplastic lesions. There was also significant increase in salivary concentrations of IL-6, IL-8 and TNF-α in patients with OSCC as compared to patients with OPMDs without dysplasia. Conclusion: The study confirmed that proinflammatory, NF-kappaB dependent cytokines are involved in pathogenesis of OPMDs and OSCC. The most important biomarker of malignant transformation process within oral mucosa among all assessed cytokines seems to be IL-8. Further studies on a larger sample size are needed to corroborate these results.
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An immuno-MALDI mass spectrometry assay for the oral cancer biomarker, matrix metalloproteinase-1, in dried saliva spot samples. Anal Chim Acta 2020; 1100:118-130. [DOI: 10.1016/j.aca.2019.12.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 11/19/2019] [Accepted: 12/01/2019] [Indexed: 01/17/2023]
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145
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The Role of Carcinogenesis-Related Biomarkers in the Wnt Pathway and Their Effects on Epithelial-Mesenchymal Transition (EMT) in Oral Squamous Cell Carcinoma. Cancers (Basel) 2020; 12:cancers12030555. [PMID: 32121061 PMCID: PMC7139589 DOI: 10.3390/cancers12030555] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 02/24/2020] [Accepted: 02/25/2020] [Indexed: 12/27/2022] Open
Abstract
As oral squamous cell carcinoma (OSCC) can develop from potentially malignant disorders (PMDs), it is critical to develop methods for early detection to improve the prognosis of patients. Epithelial-mesenchymal transition (EMT) plays an important role during tumor progression and metastasis. The Wnt signaling pathway is an intercellular pathway in animals that also plays a fundamental role in cell proliferation and regeneration, and in the function of many cell or tissue types. Specific components of master regulators such as epithelial cadherin (E-cadherin), Vimentin, adenomatous polyposis coli (APC), Snail, and neural cadherin (N-cadherin), which are known to control the EMT process, have also been implicated in the Wnt cascade. Here, we review recent findings on the Wnt signaling pathway and the expression mechanism. These regulators are known to play roles in EMT and tumor progression, especially in OSCC. Characterizing the mechanisms through which both EMT and the Wnt pathway play a role in these cellular pathways could increase our understanding of the tumor genesis process and may allow for the development of improved therapeutics for OSCC.
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146
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Torrejon-Moya A, Jané-Salas E, López-López J. Clinical manifestations of oral proliferative verrucous leukoplakia: A systematic review. J Oral Pathol Med 2020; 49:404-408. [PMID: 31990082 DOI: 10.1111/jop.12999] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 01/08/2020] [Accepted: 01/20/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The aim of this systematic review was to gather the available evidence about proliferative verrucous leukoplakia. This systematic review was conducted to answer the question: "What are the main clinical features of PVL patients?". MATERIAL AND METHODS A systematic review of the literature was done following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statements. An electronic research was carried out using different electronic databases; PubMed, and Scopus. Inclusion criteria were papers which reported at least 10 patients with proliferative verrucous leukoplakia and were published not more than 10 years ago. RESULTS A total of 285 records were identified through databases, although only 6 of them were eligible. Most patients were women, above 60 years of age (67.4). Additionally, 28 of them were non-smokers (66.6%) and 24 were non-habitual drinkers (57.1%). The most common locations were gingiva (50.9%), buccal mucosa (44.9%), and tongue (40.6%) CONCLUSION: Level C can be established to conclude the proliferative verrucous leukoplakia demographic data, risk factors, malignant transformation, and location. A strict follow-up on these patients should be mandatory, even after surgical management since they have a high recurrence rate and a malignant transformation.
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Affiliation(s)
- Aina Torrejon-Moya
- Faculty of Medicine and Health Sciences (Dentistry), University of Barcelona, L'Hospitalet de Llobregat, Spain
| | - Enric Jané-Salas
- School of Dentistry, University of Barcelona, Spain/Oral Health and Masticatory System Group (Bellvitge Biomedical Research Institute) IDIBELL, University of Barcelona, Barcelona, Spain
| | - José López-López
- School of Dentistry, University of Barcelona, Spain/Oral Health and Masticatory System Group (Bellvitge Biomedical Research Institute) IDIBELL, University of Barcelona, Barcelona, Spain
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147
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Pontes CC, Chikte U, Kimmie-Dhansay F, Erasmus RT, Kengne AP, Matsha TE. Prevalence of Oral Mucosal Lesions and Relation to Serum Cotinine Levels-Findings from a Cross-Sectional Study in South Africa. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E1065. [PMID: 32046216 PMCID: PMC7037025 DOI: 10.3390/ijerph17031065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/20/2019] [Accepted: 12/27/2019] [Indexed: 12/23/2022]
Abstract
Oral mucosal lesions (OML) can decrease oral health-related quality of life and some have the potential to become malignant. The aim of the present study was to report the prevalence of OML in relation to age, sex, and serum cotinine levels in a population with mixed ancestry from South Africa. This study is part of the Cape Town Vascular and Metabolic Health (VHM) study, conducted between 2014-2016. Trained dental examiners assessed the oral mucosa for the presence of OML according to WHO criteria. In total, 1976 individuals were included in the study, being 1496 females (75.7%) and 480 males (24.3%) with average age of 49.5 years (SD = 15.3). In total, 262 lesions were detected in 252 participants (overall prevalence of 13%). Males had higher prevalence than females (14% vs. 9%, p = 0.008). Participants aged 25-34 had the highest prevalence rates (21%). Participants who had cotinine ≥15 ng/mL had higher prevalence of OML as compared to those with <15 ng/mL (15% vs. 5%, p < 0.001). Most common lesions were nicotine stomatitis (33%) and leukoplakia (19%). Age, male sex, and higher cotinine levels were associated with increased prevalence of OML.
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Affiliation(s)
| | - Usuf Chikte
- Department of Global Health, Stellenbosch University, Cape Town 7505, South Africa;
| | - Faheema Kimmie-Dhansay
- Division of Epidemiology and Biostatistics, Stellenbosch University, Cape Town 7505, South Africa;
| | - Rajiv T. Erasmus
- Division of Chemical Pathology, Stellenbosch University, Cape Town 7505, South Africa;
| | - Andre P. Kengne
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town 7505, South Africa;
| | - Tandi E. Matsha
- Department of Biomedical Sciences, Cape Peninsula University of Technology, Cape Town 7535, South Africa;
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148
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Sathish II, Asokan K, L KC, Ramanathan A. Expression of E- Cadherin and Levels of Dysplasia in Oral Leukoplakia - A Prospective Cohort Study. Asian Pac J Cancer Prev 2020; 21:405-410. [PMID: 32102518 PMCID: PMC7332145 DOI: 10.31557/apjcp.2020.21.2.405] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 02/10/2020] [Indexed: 11/25/2022] Open
Abstract
AIM Enormous attempts have been made to develop and establish markers that determines the susceptibility of potentially malignant tissues to transform to oral cancer. E - cadherin encoded by CDH1 gene is a protein which plays an important role in cellular adhesion. This study aimed to assess the relationship between the expression of E- cadherin and different grades of epithelial dysplasia in oral leukoplakia. MATERIALS AND METHODS Tumour biopsies from fifty leukoplakia patients was collected. Half of the tissue was sent for histopathological examination and other half was subjected to see E - cadherin expression by real time PCR. RESULTS On assessing, the expression of E - cadherin was found to be high in samples with mild dysplasia followed by samples with moderate dysplasia. Samples with severe dysplastic feature showed least expression of E - cadherin. All statistical analyses were performed using Statistical Package for Social science (SPSS) and was proven that there is significant decrease in the expression of E - cadherin as the degree of dysplasia increases with a p value 0.001 and confidence interval 95%. CONCLUSION We conclude that loss of E - cadherin can be used as a tumour marker that could determine the susceptibility of normal and potentially malignant tissues to transform into oral cancers. To generalise our results, further prospective studies with a large sample size using quantitative real time PCR to read the gene expression should be carried out at multi centre levels. .
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Affiliation(s)
- I Ilangani Sathish
- Department of Oral Medicine and Radiology, SRM Dental College, Ramapuram, Chennai, Tamil Nadu,
| | - Kannan Asokan
- Department of Oral Medicine and Radiology, SRM Dental College, Ramapuram, Chennai, Tamil Nadu,
| | - Krithika C L
- Department of Oral Medicine and Radiology, SRM Dental College, Ramapuram, Chennai, Tamil Nadu,
| | - Arvind Ramanathan
- Enable Biolabs, Madurai Meenakshipuram Extension, Urapakkam, Chennai, India.
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149
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Vitamin D/VDR signaling induces miR-27a/b expression in oral lichen planus. Sci Rep 2020; 10:301. [PMID: 31942011 PMCID: PMC6962379 DOI: 10.1038/s41598-019-57288-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 12/24/2019] [Indexed: 12/17/2022] Open
Abstract
MicroRNA-27a/b are small non-coding RNAs which are reported to regulate inflammatory response and cell proliferation. Although some studies have demonstrated that miR-27b is down-regulated in the oral specimens of patients suffering with oral lichen planus (OLP), the molecular mechanism of miR-27b decrease remains a large mystery, and the expression of miR-27a in OLP is not well explored. Here, we demonstrated both miR-27a and miR-27b, compared with healthy controls, were reduced in the oral biopsies, serum and saliva samples derived from OLP patients. The reductions of miR-27a/b were also confirmed in the lipopolysaccharide (LPS)- or activated CD4+ T cell-treated human oral keratinocytes (HOKs). Furthermore, we found vitamin D receptor (VDR) binding sites in the promoters of miR-27a/b genes and verified this finding. We also tested miR-27a/b levels in the oral epithelium from paricalcitol-treated, vitamin D deficient or VDR knockout mice. In the rescue experiments, we confirmed vitamin D and VDR inhibited LPS- or activated CD4+ T cell-induced miR-27a/b reductions in HOKs. In sum, our results show that vitamin D/VDR signaling induces miR-27a/b in oral lichen planus.
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150
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Wang X, Yang J, Wei C, Zhou G, Wu L, Gao Q, He X, Shi J, Mei Y, Liu Y, Shi X, Wu F, Luo J, Guo Y, Zhou Q, Yin J, Hu T, Lin M, Liang Z, Zhou H. A personalized computational model predicts cancer risk level of oral potentially malignant disorders and its web application for promotion of non-invasive screening. J Oral Pathol Med 2020; 49:417-426. [PMID: 31823403 DOI: 10.1111/jop.12983] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 11/16/2019] [Accepted: 11/22/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Despite their high accuracy to recognize oral potentially malignant disorders (OPMDs) with cancer risk, non-invasive oral assays are poor in discerning whether the risk is high or low. However, it is critical to identify the risk levels, since high-risk patients need active intervention, while low-risk ones simply need to be follow-up. This study aimed at developing a personalized computational model to predict cancer risk level of OPMDs and explore its potential web application in OPMDs screening. METHODS Each enrolled patient was subjected to the following procedure: personal information collection, non-invasive oral examination, oral tissue biopsy and histopathological analysis, treatment, and follow-up. Patients were randomly divided into a training set (N = 159) and a test set (N = 107). Random forest was used to establish classification models. A baseline model (model-B) and a personalized model (model-P) were created. The former used the non-invasive scores only, while the latter was incremented with appropriate personal features. RESULTS We compared the respective performance of cancer risk level prediction by model-B, model-P, and clinical experts. Our data suggested that all three have a similar level of specificity around 90%. In contrast, the sensitivity of model-P is beyond 80% and superior to the other two. The improvement of sensitivity by model-P reduced the misclassification of high-risk patients as low-risk ones. We deployed model-P in web.opmd-risk.com, which can be freely and conveniently accessed. CONCLUSION We have proposed a novel machine-learning model for precise and cost-effective OPMDs screening, which integrates clinical examinations, machine learning, and information technology.
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Affiliation(s)
- Xiangjian Wang
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral Medicine, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jin Yang
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Changlei Wei
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Gang Zhou
- Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Lanyan Wu
- Department of Oral Pathology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qinghong Gao
- Department of Oral and Maxillofacial surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xin He
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jiahong Shi
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yingying Mei
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ying Liu
- Department of Oral Medicine, North Sichuan Medical College, Nanchong, China
| | - Xueke Shi
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Fanglong Wu
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jingjing Luo
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yiqing Guo
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qizhi Zhou
- School of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, China
| | - Jiaxin Yin
- Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tao Hu
- Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Mei Lin
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zhi Liang
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Science, University of Science and Technology of China, Hefei, China
| | - Hongmei Zhou
- State Key Laboratory of Oral Diseases, Department of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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