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Beltrán V, Muñoz-Sepúlveda F, Acevedo C, Navarro P, Venegas B, Salgado C, Uribe P, Engelke W. A rural teledentistry care experience: a geriatric approach to assessing oral health status and treatment needs in older adults from a Mapuche community in Chile. Front Public Health 2024; 12:1356622. [PMID: 38903581 PMCID: PMC11188396 DOI: 10.3389/fpubh.2024.1356622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 05/08/2024] [Indexed: 06/22/2024] Open
Abstract
Background Limited attention has been given to oral health challenges faced by older Indigenous populations, especially in rural settings, where disparities exist. This study aims to assess oral health in a rural Mapuche community in southern Chile, utilizing geriatric technology support, and exploring the connection between geriatric health and oral well-being to fill a gap in this context. Methods A cross-sectional study was conducted involving 76 independent older adults from a rural Mapuche community who required dental care. Assessments were in a remote care setting gathering extensive data including comprehensive geriatric assessments, medical and dental conditions using a geriatric teledentistry platform (TEGO®). Statistical analysis involved descriptive analysis, logistic regression, and both multiple correspondence analysis and k-means cluster analysis. Results The sample comprised individuals with limited formal education and a high degree of vulnerability. Geriatric assessments unveiled cognitive deterioration, frailty, depression risk, and multimorbidity. A distribution of the DMFT index, number of remaining teeth, number of occluding pairs, number of teeth with restorative needs and other relevant clinical findings was conducted based on sociodemographic, and medical-geriatric-dental characteristics, and additionally, a Multinomial Logistic Regression Analysis of Dentition Variables in Relation to Geriatric Assessments was performed. The dental burden was substantial, with an average DMFT index of 25.96 (SD 4.38), high prevalence of non-functional dentition (89.3%), periodontal disease (83%), xerostomia (63.2%) and oral mucosal lesions (31.5%). Age, lower education, depression, daily medication number and sugary consumption frequency were associated with a decreased average number of teeth (p < 0.05). Multiple correspondence analysis and k-means cluster analysis identified 4 clusters, with the edentulous and functional dentition groups being the most distinct. Conclusion This study uncovers a substantial dental burden and intricate medical-geriatric conditions interlinked among Indigenous older adults in a rural Chilean Mapuche community. The implementation of a geriatric technological ecosystem in the community enabled the resolution of less complex oral health issues and facilitated remote consultations with specialists, reducing the necessity for travel to health centers. This underscores the need for innovative dental public health initiatives to address health disparities and improve the overall well-being of older Indigenous adults.
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Affiliation(s)
- Víctor Beltrán
- Clinical Investigation and Dental Innovation Center (CIDIC), Dental School and Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile
- Interuniversity Center for Healthy Aging (CIES), Santiago, Chile
| | - Fernanda Muñoz-Sepúlveda
- Clinical Investigation and Dental Innovation Center (CIDIC), Dental School and Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile
- Interuniversity Center for Healthy Aging (CIES), Santiago, Chile
- Program of Master in Dental Science, Dental School, Universidad de La Frontera, Temuco, Chile
| | - Claudia Acevedo
- Clinical Investigation and Dental Innovation Center (CIDIC), Dental School and Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Pablo Navarro
- Research Center for Dental Sciences (CICO), Dental School, Universidad de La Frontera, Temuco, Chile
- Faculty of Health Sciences, Universidad Autónoma de Chile, Temuco, Chile
| | - Bernardo Venegas
- Stomatology Department, Faculty of Dentistry, Universidad de Talca, Talca, Chile
| | | | - Pablo Uribe
- Dental School, Universidad de La Frontera, Temuco, Chile
| | - Wilfried Engelke
- Faculty of Medicine, Georg-August University of Göttingen, Göttingen, Germany
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Zisis V, Andreadis D, Anastasiadou P, Vahtsevanos K, Akrivou M, Vizirianakis IS, Poulopoulos A. Preliminary Study of the Cancer Stem Cells' Biomarker CD147 in Leukoplakia: Dysplasia and Squamous Cell Carcinoma of Oral Epithelial Origin. Cureus 2023; 15:e38807. [PMID: 37303447 PMCID: PMC10256256 DOI: 10.7759/cureus.38807] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2023] [Indexed: 06/13/2023] Open
Abstract
Objectives Cancer stem cells (CSCs) are responsible for initiating the process of carcinogenesis de novo, as well as through the transformation of oral potential malignant disorders (OPMDs) to oral squamous cell carcinoma (OSCC). The aim of our study was to detect the expression of stemness-type CSC marker CD147 in oral leukoplakias (OLs), the most common OPMD, and OSCCs as well. Materials and methods This study focuses on the semiquantitative immunohistochemical pattern of the expression of the CSC protein biomarker CD147 in paraffin-embedded samples of 20 OSCCs of different grades of differentiation and 30 cases of OLs without or with different grades of dysplasia, compared to the normal oral epithelium in terms of cells' stain positivity. Statistical analysis was performed through Statistical Package for Social Sciences (SPSS) version 25.0 (IBM SPSS Statistics, Armonk, NY) with Pearson chi-square test, and the significance level was set at 0.05 (p=0.05). In addition, the study clarified the expression of the respective gene of CD147 through quantitative polymerase chain (qPCR), in paraffin-embedded samples of the two extreme graduations: OLs of mildly dysplastic or non-dysplastic cases (n=10 cases) and OSCCs of moderately/poorly differentiated cases (n=17). Statistical analysis was then performed through SPSS version 25.0 with an independent paired t-test, and the significance level was set at 0.05 (p=0.05). Results The gene CD147 was expressed in all cases, although no statistically significant correlations were established. Regarding its protein products, the characteristic membranous staining of CD147 was noticed in the majority of the samples, mostly in the basal and parabasal layers of the epithelium. CD147 was upregulated significantly in the moderately and severely dysplastic OLs than in the mildly dysplastic and non-dysplastic OLs (p=0.008). Also, CD147 was upregulated significantly in the mildly dysplastic and non-dysplastic OLs than in the normal oral epithelium (p=0.012). Discussion The characteristic expression of CD147 in OLs and OSCCs' lesions suggests the presence of stemlike cancer cells, illustrating an underlying effect on the early stages of oral dysplasia, in the OL stage. The clinical application of CD147 as prognostic factor requires the experimental evaluation in larger number of samples. Conclusion Stem cells play an important role in the process of carcinogenesis. A major goal in cancer research is the identification of specific biomarkers for the detection of cancer stem cells. CD147 is considered as an innovative stem cell marker. Our findings in oral mucosal potentially malignant disorders showed that CD147 is expressed more intensely in parallel with the progression of the grade of dysplasia in OL. On the other hand, in oral squamous cell carcinoma, CD147 expression remains stable regardless of the degree of differentiation.
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Affiliation(s)
- Vasileios Zisis
- Oral Medicine/Pathology, Aristotle University of Thessaloniki, Thessaloniki, GRC
| | - Dimitrios Andreadis
- Oral Medicine/Pathology, Aristotle University of Thessaloniki, Thessaloniki, GRC
| | | | | | - Meni Akrivou
- Pharmacology, Aristotle University of Thessaloniki, Thessaloniki, GRC
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Khan AS, Khan ZA, Nisar M, Saeed S, Maryam H, Haq M, Naushin T, Issrani R. Description of clinicopathological characteristics of oral potentially malignant disorders with special focus on two histopathologic grading systems and subepithelial inflammatory infiltrate. J Cancer Res Ther 2023; 19:S724-S730. [PMID: 38384046 DOI: 10.4103/jcrt.jcrt_969_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 08/06/2022] [Indexed: 02/23/2024]
Abstract
OBJECTIVE This study was conducted to evaluate the clinicopathological features of oral potentially malignant disorders (OPMDs) with a focus on two histologic grading systems and subepithelial inflammatory infiltrates. MATERIALS AND METHODS This cross-sectional and multicenter study was conducted from April 2016 to September 2021 and comprised patients diagnosed with OPMDs. Hematoxylin and eosin-stained slides of 127 cases were assessed based on the World Health Organization (WHO) 2005 classification system, namely, epithelial precursor lesions and binary system of oral epithelial dysplasia (OED). Chi-square test and Fisher's exact test were used to compare different categorical variables related to OPMDs. RESULTS The mean age of OPMD cases at presentation was 54.72 13.30 (P < 0.01) with a male to female ratio of 1.6:1. Oral leukoplakia (52.8%) was the most commonly diagnosed form of OPMD. Most OPMDs were classified as oral epithelial hyperplasia (59.1%) and the remaining (40.9%) as OED (P < 0.01). Of the 52 OPMDs with OED, all cases of mild dysplasia (36.5%) and carcinoma in situ (9.6%) were categorized as low-risk and high-risk lesions, respectively. Chronic inflammatory infiltrate (79.5%) was the most common subepithelial inflammatory alteration observed among OPMDs. CONCLUSIONS Early detection of OPMDs is vital due to increased risk of developing into oral cancer. Timely clinicopathological risk assessment of OPMD is desirable for improving the prognosis and preventing the malignant transformation in oral premalignancy. Besides the epithelial precursor lesions' classification by the WHO, binary system of grading OED use can be encouraged. Also, subepithelial inflammatory infiltrate can be of importance in future research regarding OPMDs.
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Affiliation(s)
- Abbas Saleem Khan
- Department of Oral Pathology, Peshawar Dental College, Riphah International University, Islamabad, Pakistan
| | - Zafar Ali Khan
- Oral and Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jouf University, Kingdom of Saudi Arabia
| | - Muhammad Nisar
- Department of Oral Pathology, Peshawar Dental College, Riphah International University, Islamabad, Pakistan
| | - Saleha Saeed
- Department of Oral Pathology, Faryal Dental College, Lahore, Pakistan
| | - Hoor Maryam
- Department of Oral Pathology, Peshawar Dental College, Riphah International University, Islamabad, Pakistan
| | - Mohsina Haq
- Department of Microbiology, Peshawar Medical College, Riphah International University, Islamabad, Pakistan
| | - Tehmina Naushin
- Department of Oral Pathology, Peshawar Dental College, Riphah International University, Islamabad, Pakistan
| | - Rakhi Issrani
- Preventive Dentistry, College of Dentistry, Jouf University, Sakaka, Kingdom of Saudi Arabia
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Kaunein N, Ramani RS, Koo K, Moore C, Celentano A, McCullough M, Yap T. A Systematic Review of MicroRNA Signatures Associated with the Progression of Leukoplakia with and without Epithelial Dysplasia. Biomolecules 2021; 11:biom11121879. [PMID: 34944523 PMCID: PMC8699326 DOI: 10.3390/biom11121879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/10/2021] [Accepted: 12/10/2021] [Indexed: 01/07/2023] Open
Abstract
Oral cancer is a significant public health issue, being the eighth most common cancer worldwide with over 300,000 cases diagnosed annually. Early diagnosis and adequate management of oral potentially malignant disorders (OPMDs) before transformation into oral squamous cell carcinoma (OSCC) is critical to reduce deaths, morbidity, and to improve overall prognosis. MicroRNAs (miRNAs) are small noncoding RNAs involved in the post-transcriptional regulation of protein expression and implicated in the control of numerous cellular pathways and impacting physiological, developmental, and pathological processes. Dysregulation of miRNAs has been reported in many cancers and has been demonstrated to play a critical role in cancer initiation, progression, apoptosis, invasion and metastasis. This systematic review provides a comprehensive summary of the prevailing literature on miRNA signatures in OPMDs, specifically leukoplakia with or without oral epithelial dysplasia, and their utility in predicting malignant transformation into OSCC. Eighteen articles describing 73 unique and differentially expressed microRNAs met the criteria for inclusion in this review. We reviewed the characteristics and methodology for each of these studies and assessed the sensitivity and specificity of the studied miRNAs in predicting malignant transformation. This systematic review highlights the significant interest in miRNAs and their tremendous potential as prognostic markers for predicting the malignant transformation of OPMDs into OSCC.
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Affiliation(s)
- Nadia Kaunein
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia; (R.S.R.); (K.K.); (C.M.); (A.C.); (M.M.)
- Correspondence: (N.K.); (T.Y.); Tel.: +61-39-341-1485 (T.Y.)
| | - Rishi Sanjay Ramani
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia; (R.S.R.); (K.K.); (C.M.); (A.C.); (M.M.)
| | - Kendrick Koo
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia; (R.S.R.); (K.K.); (C.M.); (A.C.); (M.M.)
- Royal Melbourne Hospital, Victorian Comprehensive Cancer Centre, Parkville, VIC 3053, Australia
| | - Caroline Moore
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia; (R.S.R.); (K.K.); (C.M.); (A.C.); (M.M.)
| | - Antonio Celentano
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia; (R.S.R.); (K.K.); (C.M.); (A.C.); (M.M.)
| | - Michael McCullough
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia; (R.S.R.); (K.K.); (C.M.); (A.C.); (M.M.)
| | - Tami Yap
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia; (R.S.R.); (K.K.); (C.M.); (A.C.); (M.M.)
- Royal Melbourne Hospital, Victorian Comprehensive Cancer Centre, Parkville, VIC 3053, Australia
- Correspondence: (N.K.); (T.Y.); Tel.: +61-39-341-1485 (T.Y.)
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Pedroso CM, Schemberger GK, Dziadzio JL, Condolo LC, de Camargo Smolarek P. Small Dysplastic Oral Leucoplakia in a Smoking Woman: a Case Report. EJOURNAL OF ORAL MAXILLOFACIAL RESEARCH 2021; 12:e5. [PMID: 33959240 PMCID: PMC8085679 DOI: 10.5037/jomr.2021.12105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 03/25/2021] [Indexed: 11/16/2022]
Abstract
Background Oral leucoplakia is clinical term used to describe white plaques, and that is part of the group of oral potentially malignant disorders. Leucoplakia may show epithelial dysplasia, mainly in harder smoking patient. This case report discusses a small leucoplakia with dysplasia on the tongue's lateral border in a woman, diagnosed early after a routine clinical consultation. Methods A 57-year-old female patient consulted to the Oral Diagnosis and Surgery Service of the State University of Ponta Grossa, Brazil. First, the patient was referred for the extraction of her lower incisors due to periodontal disease. During clinical examination, was identified a sessile white plaque, of small size, and located on the tongue's left lateral border. Thus, the lesion's diagnostic hypothesis was oral leucoplakia due to patient be chronic smoker for 40 years. The incisional biopsy was performed, with the epithelial tissue and part of the connective tissue removed. Results The histopathological examination revealed a stratified and keratinized pavement epithelium, with cellular atypia, and presence of hyperchromatism and nuclear pleomorphism. However, the alterations were restricted to the epithelium's basal, characterizing a mild dysplasia. The proposed treatment was surgical removal of the lesion, and the patient was also instructed to quit smoking, as well as she continues to follow-up. Conclusions The presented case emphasizes the importance of early diagnosis and the orientation of risk factors to smoking patients, even in small lesions that can clinically appear harmless.
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Affiliation(s)
- Caique Mariano Pedroso
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Sao PauloBrazil
| | | | - João Lucas Dziadzio
- Department of Dentistry, State University of Ponta Grossa, Ponta GrossaBrazil
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